authority of india cns manual vol. vii part 3 2 aai/ans/cns/om/2015/v2.0-cnsm-vol-7-part-3 version...

AIRPORTS AUTHORITY OF INDIA CNS MANUAL VOL. VII Part 3

1

AAI/ANS/CNS/OM/2015/V2.0-CNSM-VOL-7-PART-3 Version 2.0 October, 2015

CNS facilities Maintenance Schedules

Surveillance Manual

Volume VII Part 3

First Version- 2006

Second Version - 2015

Document Identification No: AAI/ANS/CNS/OM/2015/V2.0-CNSM-VOL-7-PART-3

AIRPORTS AUTHORITY OF INDIA


2


Preface

This is the Version 2.0 of CNS Manual Volume - VII in the series of Eight

volumes of CNS manuals prepared and maintained by CNS-OM Directorate,

CHQ on behalf of Airports Authority of India for the use and guidance of its

executives and staff. The topics covered under these Volumes are as under:-

Volume I – Maintenance of CNS Facilities

Volume II – Communication Procedures

Volume III – Siting Criteria of CNS Facilities

Volume IV – Flight Inspection of CNS Facilities

Volume V – Lightning & Surge Protection and Earthing System of CNS

Installations

Volume VI – Technical Specifications

Volume VII- Maintenance Schedules of CNS/ATM facilities

Volume VIII- Document Management Manual

This volume contains the Maintenance Schedules for CNS/ATM facilities

installed and operated by AAI at Aeronautical Communication Stations. This

Volume is organized in four parts:

Part 1 – Communication

Part 2 – Navigation

Part 3 – Surveillance

Part 4 – Automation

The guidelines, procedures and practices described in this volume, meticulously

followed by CNS maintenance personnel at Aeronautical Communication

Stations will go in a long way in maintaining the CNS/ATM facilities as per

prescribed standards.

Views, comments and suggestions for improvement of this volume may be sent

to ED CNS-OM so as to incorporate them in the next version of this volume.


3


Record of Amendments

No. Amendment

Date

Incorporated

on

Incorporated by


4


Table of Contents

Chapter -1 General 06

Chapter -2 Operation & Maintenance Plan 08

Chapter – 3 RADAR

1. NGOSCO 10

2. Raytheon 26

3. SELEX 39

4. INDRA 52

5. ELDIS 61

Chapter – 4 ASMGCS

1. SENSIS 75

2. HITT 98

3. SELEX 118

Chapter – 5 ADS-B

1. Comsoft 130


5


Abbreviations

AAI – Airports Authority of India ACS – Aeronautical Communication Station ADS-B - Automatic Dependent Surveillance-Broadcast AIP -Aeronautical Information Publication AMHS - ATS Message Handling System AMSS- Automatic Message Switching System ANSP -Air Navigation Service Provider ASMGCS- Advance Surface Movement Guidance and Control System ATC -Air Traffic Control ATS- Air Traffic Service ATM - Air Traffic Management ATN – Aeronautical Telecommunication Network CAR – Civil Aviation Requirement CNS- Communication, Navigation, Surveillance C-SMS Manual – Corporate Safety Management Sytem Manual DGCA- Director General of Civil Aviation DME –Distance Measuring Equipment DVOR- DopplerVery High Frequency Omni Range ICAO - International Civil Aviation Organisation IT - Information Technology ILS -Instrument Landing System MSSR- Monopulse Secondary Surveillance Radar NDB- Non Directional Beacon PSR – Primary Surveillance Radar SARPS Standards and Recommended Practices SMR –Surface Movement Radar SMS Safety Management System VOR- Very High Frequency Omni Range


6


Chapter -1

GENERAL

1. Title of the Document:

This document is identified as Communication, Navigation & Surveillance Manual –

Vol. VII (CNSM- Vol. VII Part 3) “Surveillance Facilities Maintenance Schedules.”

2 Purpose of this Document:

2.1 Purpose of this document is to provide information and guidelines pertaining

maintenance schedules of CNS Surveillance facilities, which are essential for the provision

of safe and efficient air traffic services by Airports Authority of India. It is published for

use and guidance of its CNS Maintenance personnel.

3 Responsibility for documentation, review, amendments and publication:

3.1 The General Manager (NS&CMC), AAI, CHQ is responsible for development,

review and amendments of CNS – Manuals Vol. VII Part 3. He will ensure that the

information and guidelines, as detailed in this manual are in conformity with Standards

and Recommended Practices (SARPs) given in the Annexes to Convention on

International Civil Aviation and National regulations.

3.2 The Executive Director (CNS-OM) is responsible for the approval of documentation &

Amendments and publication of CNS-Manual.

4. Effective Date:

4.1 Effective date of Manual is indicated at the foot of the page.

4.2 New edition will be indicated by the same date at the foot of the page.

5. Change History:

5.1 This is version 2 of CNS Manual Vol. VII Part 3, changes, if any, are indicated on

‘Record of Amendments and corrigenda page’.

5.2 Amendments – documentation being inserted in the manual must contain headers and

footers that are consistent with those given in this document.

6. Control of the manual:

6.1 Directorate of CNS-OM will control this Manual electronically through AAI web site.


7


7 Distribution of the Manual:

7.1 Directorate of CNS-OM may produce hard copies and control the distribution of these

Copies, as deemed appropriate.

8 Master Copy:

8.1 An electronic and a hard master copy of each chapter contained in the Manual will be

held and maintained by the CNS-OM Directorate.

9. Checking Currency of Manual:

9.1 A current copy of the Manual will be published on Airports Authority of India web site.

10 Enquiries

10.1 Enquiries/Clarifications should be addressed to:

Executive Director (CNS - OM),

Airports Authority of India,

Rajiv Gandhi Bhaven,

Safdarjung Airport, New Delhi – 110003.

Telephone: 011- 24652075

FAX : 011- 24654142


8


Chapter -2

Operation & Maintenance Plan

1. While the standardised maintenance schedules for operational CNS/ATM facilities

are given in this Manual, Stations are also advised to work out a station specific

operation and maintenance plan for each equipment/facility operational at the station.

This includes working out and making available tools, test equipment and other

ancillaries required for carrying out maintenance on the facility.

2. The details procedures for preventive maintenance as described/mentioned in this

Manual are given in the respective equipment’s/facility’s Operation and Technical

Manual(s). These procedures shall be always referred to while carrying out

preventive/corrective maintenance of facility.

3. Before undertaking preventive/corrective maintenance on the equipment/facility,

wherever required:-

(i) Concerned Air Traffic Service Unit shall be notified;

(ii) Concerned Airport operations Unit shall be notified;

(iii) All the safety precautions as mentioned in the equipment/facility Operations

and Technical Manual(s) shall be followed;

(iv) All the required tools and test equipment should be organised; and

(v) Any other station/equipment specific requirement.

--------------


9


Chapter -3

Maintenance Schedules

RADAR


10


AIRPORTS AUTHORITY OF INDIA

PREVENTIVE MAINTANENCE SCHEDULE-DAILY

Equipment: ASR 9 Make: NGOSCO

Sl No Parameters to be

Checked

Normal Status Measured Status

1. General Date :

1.1 Equipment Shelter

cleanliness

Dust Free

1.2 Status of of Air

Conditioning

Serviceable


Temperature

18-20 C

1.4 A C Mains Power

Supply

200-240 V

1.5 Equipment Power

Supply

110-120V

1.6 Status of Obstruction

Light

O.K.

1.7 Status of Lightening

Light

O.K.

1.8 Status of UPS O.K.

1.9 General Room

Cleanliness

Dust Free

1.10 Status of Telephone Serviceable

1.11 Change of Channel Ch-A to Ch-B

Vice Versa

1.12 Listen for any

Unusual Noise

No Unusual

Noise


illumination

Satisfactory

1.14 Status of Wave

Pressurizer

O.K.

1.15 Status of Terminals:

1) Local Terminal O.K.

2) DIU O.K.

3) PC-RAPPI O.K.

1.16 Status of Standby

Channel

Serviceable

( )

SIGNATURE OF DUTY OFFICER

(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA

CAR’S AND MANUFACTURER’S TECHNICAL MANUAL.)


11




Sl

No

Parameters to be

Checked


2. TX Meter Readings Date:

Online Channel A/B :

2.1 +5V DC P/S Voltage 5V +/- 0.5V

2.2 +15V DC P/S Voltage 15V +/- 0.5V

2.3 -15V DC P/S Voltage -15V +/- 0.5V

2.4 +28V DC P/S Voltage 28V +/- 1V

2.5 +45V DC P/S Voltage 45V +/- 1.5V

2.6 +280V DC P/S Voltage 280V - 370V

2.7 Filament P/S Voltage 65V+/- 15V

2.8 Filament P/S Voltage 6V +/- 0.2V

2.9 Focus Coil P/S Voltage 62V +/- 22V

2.10 Vacuum Power Supply +2750 - + 3200V

2.11 FPA cathode Current +72ma to 96 ma PRF

Dependent (Within 4

ma)

2.12 FPA Beam Voltage +60KVA to 80 KVA

2.13 Modulator Inverse

Current

<30ma

2.14 PFN charge Current 2 to 4.5 A

2.15 Regulator current 0 to 45 ma

2.16 Filament Current Ch-A 27+/-0.5A

Ch-B 26+/-0.5A

2.17 Focus Coil Current Ch-A 27+/-0.5A

Ch-B 23+/-0.5A

2.18 Vacuum Pump Current <20 micro amp

2.19 PFN Voltage 5400V to 6200V

2.20 Check for any alarm on

Tx Panel

No Alarm Present

2.21 Check for any Blown

Fuse Indication

No Blown Fuse

( )





12





Checked


Receiver - A

3.A.1 Stalo Level 0

3.A.2 +15 V P/S (D) +15V +/- 0.5V

3.A.3 -15 V P/S (A) -15V +/- 0.5V

3.A.4 +100 V P/S (A) +100V +/- 0.5V

3.A.5 +5 V P/S (C 3-4) +5V +/- 0.2V

3.A.6 +5 V P/S (C 1- 2) +5V +/- 0.2V

3.A.7 +15 V P/S (B) +15V+/- 1V

3.A.8 -15 V P/S (B) -15V+/- 1V

3.A.9 Status of Battery ON

3.A.10 Battery Voltage +265 +/- 35V

3.A.11 Check for Blown

Fuse

No Blown Fuse

3.A.12 Status of Fans O.K.

Receiver – B

3.B.1 Stalo Level 0

3.B.2 +15 V P/S (D) +15V +/- 0.5V

3.B.3 -15 V P/S (A) -15V +/- 0.5V

3.B.4 +100 V P/S (A) +100V +/- 0.5V

3.B.5 +5 V P/S (C 3-4) +5V +/- 0.2V

3.B.6 +5 V P/S (C 1- 2) +5V +/- 0.2V

3.B.7 +15 V P/S (B) +15V+/- 1V

3.B.8 -15 V P/S (B) -15V+/- 1V

3.B.9 Status of Battery ON

3.B.10 Battery Voltage +265 +/- 35V

3.B.11 Check for Blown

Fuse

No Blown Fuse

3.B.12 Status of Fans O.K.

( )





13





Checked


WEATHER RECEIVER

Online Wx Channel : 2Wx/6Wx Date:

3.W.1 +15V P/S (D) +15V +/- 0.5V

3.W.2 -15V P/S (A3) -15V +/- 0.5V

3.W.3 +100V P/S (A3) 100V +/- 0.5V

3.W.4 +5 V P/S (C2-3)

+5 – 0.1 V to

+5V + 0.2V

3.W.5 +15V P/S (B) +15V +/- 0.5V

3.W.6 -15V P/S (B) -15V +/- 1V

3.W.7 +5V P/S (C1) +5 – 0.1 V to

+5V + 0.2V

3.W.8 +15V P/S (A2) +15V +/- 0.5V

3.W.9 -15V P/S (A1) -15V +/- 0.5V

3.W.10 +24V P/S (D) +24 V - + 3200V

3.W.11 Status of Battery

Switch

ON

3.W.12 Battery Voltage +265 V +/- 35V

3.W.13 Check for Blown Fuse No Blown Fuse

4. RMS measurements ONLINE CHANNEL : A/B:

4.1 Power 1000-1503 Watts

4.2 VSWR <1.5

4.3 Pulse Width 0.9-1.1 microsec

4.4 Centre Frequency 2790/2800 MHz

4.5 40 db Bandwidth 10-13 MHz

4.6 MDS HI BEAM -108.4 dBm

-109.2 dBm

4.7 MDS LO BEAM -108.4 dBm

-109.2 dBm

4.8 NF HI BEAM 3.9dB/2.9dB

4.9 NF LO BEAM 3.9dB/2.9dB

4.10 Wx MDS -108.4 dBm

4.11 WX NF 3.3dB

( )





14




Sl

No

Parameters to be

Checked


4. RMS MEASUREMENT Date:

4.12 Filament Current Nameplate +/-3.0A

4.13 Filament Coil Current Nameplate +/-3.0A

4.14 Klystron Voltage 60.2 KV to 80.5 KV

4.15 Klystron Current 71.9 ma to 96.1 ma (PRF

Dependent) +/- 4.0 ma)

4.16 PFN Voltage +5400 V to 5700 V

4.17 Vacuum Pump Current <20 micro amp

STANDBY CHANNEL

4.18 Power 1000-1503 Watts

4.19 Pulse Width 0.9-1.1 micro sec

4.20 Centre Frequency 2790/2800 MHz

4.21 40 dB Bandwidth 10-13 MHz

4.22 MDS HI BEAM -108.4 dBm

-109.6 dBm

4.23 MDS LO BEAM -108.0 dBm

-109.2 dBm

4.24 NF HI BEAM 3.9dB/2.9dB

4.25 NF Lo BEAM 3.9dB/2.9dB

ANTENNA PEDESTAL CONTROL UNIT

5.1 Motor 1 ----24 V 24V +/- 1.2 V

5.2 Motor 1 ----5 V 5V +/- 0.05 V

5.3 Motor 2 ----24 V 24V +/- 1.2 V

5.4 Motor 2 ----5 V 5V +/- 0.05 V

5.5 Check Lamp Indication for

incoming supply

O.K.


Motor 1 supply

O.K.


Motor 2 supply

O.K.


Interlocks

O.K.

5.9 Check whether both the shaft of

motor are rotation with antenna O.K.

5.10 Status of Antenna Switch

Lamp

O.K.

( )





15




Sl

No

Parameters to be Checked Normal Status Measured Status

6. Miscellaneous

6.1 RMS + 15 V Supply 15.0V +/- 1 V

6.2 RMS + 5 V Supply 5.0 V +/-0.3 V

6.3 Status of Building Alarm

Lamp ‘A’

O.K.

6.4 Status of Building Alarm

Lamp ‘A’

O.K.

6.5 Waveguide

Pressurizer No. 1

A) Output Pressure 10 psi

B) Tank Pressure 35 psi

6.6 Waveguide

Pressurizer No. 1

A) Output Pressure 10 psi

B) Tank Pressure 35 psi

7. Deviation from Normal Status/ Readings Noticed

S.

No

Date Details of Deviation Action Taken Remarks if any Signature of

Duty Officer

( )


NAME:

DESIG:

COMMENTS/ACTION TAKEN DETAILS:

( )

SIGNATURE OF UNIT INCHARGE.

NAME:

DESIG:




16


PREVENTIVE MAINTANENCE SCHEDULE-Monthly

Equipment: ASR 9 Make: NGOSCO Channel:

S

No

TASKS TO BE PERFORMED STATUS REMARKS

1. Calibration of RMS

MDS Measurement : LO Beam- 108.0dBm/-109.6 dBm

HI Beam- 108.4dBm/-109.2 dBm

PERFORMED

2. Check Power Supply Output Voltages

A. TRANSMITTERS

(1) +5 V P/S

(2) +15 V P/S

(3) -15 V P/S

(4) +28 V P/S

(5) +45 V P/S

(6) +280 V P/S

(7) Filament P/S Voltage 65 +/- 15 V

(8)Filament Coil P/S Voltage 62 +/- 15 V

B. RECEIVER

(1) +15 V P/S

(2) -15 V P/S

(3) +100 V P/S (A)

(4) +5 V P/S (C3-4)

(5) +5 V P/S (C1-2)

(6) +15 V P/S (B)

(7) -15 V P/S (B)

( )

SIGNATURE OF DUTY OFFICER.




17


PREVENTIVE MAINTANENCE SCHEDULE-MONTHLY

Equipment: ASR 9 Make: NGOSCO Channel: WEATHER

S

No

TASKS TO BE PERFORMED STATUS REMARKS

1. Check Power Supply Output Voltages

(1) +15 V P/S (D) +15V +/- 0.5V

(2) -15 V P/S (A3) -15V +/- 0.5V

(3) +100 V P/S (A3) +100V +/- 0.5V

(4) +5 V P/S (C2-3) (5V-0.1V) - (5V-0.2V)

(5) +15 V P/S (B) +15V +/- 1V

(6) -15 V P/S (B) -15V +/- 1V

(7) +5 V P/S (C1) (5V-0.1V) - (5V-0.2V)

(8) +15 V P/S (A2) +15V +/- 0.5V

(9) -15 V P/S (A1) -15V +/- 0.5V

(10)+24 V P/S(D) +24V +/- 0.5V

2. Check the Status of Fans

3. Check the Power Supply Battery Voltage

4. PERFORM SYSTEM STABILITY CHECK

5. CHECK TARGET CHANNEL RECEIVER

RECOVERY

( )


NAME:

DESIG:


( )


NAME:

DESIG:




18


PREVENTIVE MAINTANENCE SCHEDULE-HALF YEARLY


S No TASKS TO BE PERFORMED STATUS REMARKS

1 Perform General Inspection and clean as

required

2 Replace TX Focus Coil motor

3 Lubricate TX OIL pump motor

4 Perform receiver Backup Battery capacity

test

5 Change Antenna Pedestal Rotor oil

6 Change Antenna Pedestal Drive Reducer

oil

7 Lubricate Antenna Pedestal Drive Motor

8 Perform UPS Battery performance check

9 Perform calibration of Spectrum analyzer

performance test

10 Perform calibration of Power Meter

performance test

11 Perform arc detector test

( )


NAME:

DESIG:


( )

SIGNATURE OF UNIT INCHARGE

NAME:

DESIG:




19


PREVENTIVE MAINTENANCE SCHEDULE OF MSSR SITE-DAILY

MAKE: NGOSCO Station: Date:

Parameters to be checked Normal Status

1.0 General

1.1 On Line Channel 1 or 2

1.2 Status of Online

Channel Green/Yellow

/Red

Status of Local Terminal O.K.

Status of Remote Terminal O.K.

Status of PC Rappi O.K.

Status of CPMEs O.K.

Change of Channel 1 to 2 or

vice versa

Room Temperature 18-22

1.10 Shelter Cleanliness Dust Free

Equipment Cleanliness Dust Free

2. INTERROGATOR PANEL

2.1 Check the lamp indication for Glowing

input three phase supply

2.2 Check the Status of Breaker ON

Alarm Switch

2.3 Check all lamps using lamp

test OK


20


2.4

Check if any fault Monitor Lamp No Lamp

is glowing should glow

3.

3.1 SLS ATCRBS Tx Power

3.2 Main Normal Mode S Tx Power

3.3 SLS Normal Mode S Tx Power

3.4 Main High Mode S Tx Power

3.5 SLS High Mode S Tx Power

3.6 Mian ATCRBS Tx Power

3.7 Sum Channel Gain

3.8 Delta Channel Gain

3.9 Omni Channel Gain

3.10 Sum Channel Noise

3.11 Delta Channel Noise

3.12 Omni Channel Noise

3.13 VSWR Main Transmitter

3.14 VSWR Aux. Transmitter

3.15 Cabinet Temperature-1








4.1 SLS ATCRBS Tx Power

4.2 Main Normal Mode S Tx

Power

4.3 SLS Normal Mode S Tx Power

4.4 Main High Mode S Tx Power


21


4.5 SLS High Mode S Tx Power

4.6 Mian ATCRBS Tx Power

4.7 Sum Channel Gain

4.8 Delta Channel Gain

4.9 Omni Channel Gain

4.10 Sum Channel Noise

4.11 Delta Channel Noise

4.12 Omni Channel Noise

4.13 VSWR Main Transmitter

4.14 VSWR Aux. Transmitter









5. BUILT IN TEST STATUS

5.1 Interrogator 1 Built in Test Green/Yellow

/Red

5.2 Interrogator 2 Built in Test Green/Yellow

/Red

5.3 DPS Channel 1 Built in Test Green/Yellow

/Red

5.4 DPS Channel 2 Built in Test Green/Yellow

/Red

5.5 DPS I/O Built in Test Green/Yellow

/Red


22


( )


NAME:

DESIG:


( )


NAME:

DESIG:



5.6 System Built in Test

Green/Yellow

/Red

6.

Remarks (If any)

6.1 Time of Observation


23


PREVENTIVE MAINTENANCE SCHEDULE - Weekly

EQPT: MODE – S MONTH: - MAKE: NGOSCO

S No. Parameters to be checked Normal Status

1 GENERAL

1.1 Eqpt Shelter cleanliness Dust Free

1.2 Eqpt shelter Temp 18-22

1.3 Eqpt shelter illumination Satisfactory

1.4 Status of A/C satisfactory

1.5 Status of fire extinguisher serviceable

1.6 Unusual sound/smell No

2.1 EQUIPMENT INDR01

2.1.1 Eqpt Status OK

2.1.2 Error/Event log file Nothing Unusual

2.1.3 Disk Usage (DIA0/DIA1) <70%

2.1.4 Alarm Status No Alarms

2.1.5 Deleting old data files Done

2.1.6 RDP Personility Master/Alternate

2.1.7 Lan Communication OK

2.1.8 Date/Time checking OK

2.1.9 Any abnormality reported NO

by Radar cantroller

2.2 EQUIPMENT INDR02






2.2.6 RDP Personility Master/Alternate




by Radar cantroller

2.3 EQUIPMENT INDX01






2.3.6 RCW Personility SC01/SC02


24





by Radar cantroller

2.4 EQUIPMENT INDX02






2.4.6 RCW Personility SC01/SC02




by Radar cantroller

3 Deviation From Normal Status /Reading Noticed

Date Details of deviation/action taken Remarks

( )


NAME:

DESIG:


( )


NAME:

DESIG:




25


PREVENTIVE MAINTENANCE SCHEDULE - MONTHLY

EQPT: MODE – S MONTH: - MAKE: NGOSCO

SL.

NO.

TASK TO BE PERFORMED MEASURED STATUS REMARKS

1 POWER SUPPLY DC OUTPUT VOLTAGE INT - 1 INT – 2

1.A. INTERROGATOR

PS1 (+15V + 0.1V)

PS2 (-15V + 0.1V)

PS3 (+5V + 0.1V)

PS4 (+36V + O.7V)

PS5 (+52V + 2.0V)

1.B. DPS

V1 (+5V + 0.1V)

V2 (+15V + 0.1V)

V3 (-15V +0.1V)

1.C. PCU VOLTAGE

i) TP1 (0V)

ii) TP2 (0V)

iii) TP3 (0V)

iv) TP4 (0V)

v) TP5 (+24V)

vi) TP6 (+24V)

vii) TP7 (1.4V)

2. PERFORM LAMP TEST

i) INTERROGATOR

ii) PCU

3 PERFORM CIRCUIT BREAKER TEST

ALARM

4. PERFORM GENERAL INSPECTION AND

CLEANINGN OF CABINET

i) INTERROGATOR

ii) DPS

iii) PCU

5. CLEAN AND REPLACE AIR FILTERS

i) INTERROGATOR

ii) DPS

( )


NAME:

DESIG: COMMENTS/ACTION TAKEN DETAILS:

( )


NAME:

DESIG: (THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA



26


PSR / MSSR PREVENTIVE MAINTENANCE SCHEDULE – DAILY

Site : Make : Raytheon Date:

Shift: Time:

Parameters To be Checked Observed Status Observed Status

APG

Polarization

Encoder

Motor A Current

Motor B Current

MSSR A

Role

MIP

MSSR B

Role

MIP

Tx

PA

Driver

Status

REX A

Role

Target Map

Weather Map

REX B

Role

Target Map

Weather Map

SCDI A

Role

Status

SCDI B

Role

Status

RDR

Status

Facility

Status

UPS

Status

Site Power Source

Status

Pedestal Room

Abnormal Noise

Oil Leakage


27


End to End

Test Rex/ SDP - A Rex/SDP - B Rex/ SDP - A Rex/ SDP - B

Noise Level Noise Level Noise Level Noise Level

Target (High)

Target (Low)

Weather

Phase Stability

Test

Rex / SDP-A Rex/SDP-B Rex / SDP-A Rex/SDP-B

Target Lo Beam

SP

Target Lo Beam

LP

Target Hi Beam

SP

Target Hi Beam

LP

Weather SP

Weather SP

Probability of

Detection

Pd,

Minute

Pd,

Hour

dRange dAzimuth Pd,

Minute

Pd,

Hour

dRange dAzimuth

MSSR Parrot

PSR PE1

PSR PE2

PSR PE3

Radar Data

Count MSSR PSR MSSR PSR

Last Scan Per Minute Last Scan Per Minute Last Scan Per

Minute Last Scan Per Minute

Coast

Multiple Comb

Primitive

Solo

Test Targets

Parrot / PE Solo in PSR Range /

Wx

Combined

Targets Last Scan Per Minute Last Scan Per Minute

Radar Statistics MSSR1/

MSSR2 PSR1/PSR2 MSSR/PSR

MSSR1/

MSSR2 PSR1/PSR2 MSSR/PSR

Range,nmi

Azimuth,degree

(Signature of Duty Officer) (Signature of Unit In-Charge)




28


L-Band Radar Maintenance Schedule - Weekly

Date:

PSR Tx Power

(As per Built in VU Meter)

Microwave

Link U

P

S

Antenna Co

mp

resso

r

Deh

yd

rato

r

Azimuth

Encoder

Drive

r A

Drive

r B

Short

Pulse

Forward

Power

Long

Pulse

Forward

Power

Reverse

Power

Pedestal

Lube

Flow A

Pedestal

Lube

Flow B

An

tenn

a Po

larization

C/O

Lin

ear to

Circu

lar and

Vice

Versa

Co

mp

ressor

Deh

yd

rator

Azim

uth

En

cod

er

Ch

ang

e ov

er

Selectio

n X

to Y

&

Vice-V

ersa


(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX

10, DGCA CAR’S AND MANUFACTURER’S TECHNICAL MANUAL.)


29


MSSR Weekly Check

(Ref System Manual Sec 3, Annex A, P29 to P36)

Station : L-Band Radar, IGI Airport Palam, New Delhi Date:

1. Test points representing over 200 BIT functions for the selected MSSR channel (A

channel first week and third week B Channel second and fourth week) may be printed

out values may be evaluated.

2. System

Statistical data for Channel A and Channel B

Voltages and dB values for Channel A and Channel B

Channel A Channel B

Tx Sum Power dBW

Control Power dBW

-70 V

-5.2 V

+15 V

+65 V

-15 V

+5 V

+28 V

+50 V

RDC +5.0 V

SP +5.0 V


30


3. Antenna Pattern Measurement may be carried out first week and third week for

channel A and second and fourth week for channel B. Observations may be

evaluated.


(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX

10, DGCA CAR’S AND MANUFACTURER’S TECHNICAL MANUAL.)


31


PREVENTIVE MAINTENANCE SCHEDULE – MONTHLY

Station : L-Band Radar Make: Raytheon Date:

1. Frequency

Frequency Standard Value CH-A Measured Value CH-B Measured Value

F1 1290 MHz

F2 1291 MHz

F3 1320 MHz

F4 1321 MHz

Note:

2. Pulse Width

L-Band

(Short Pulse 1.4±0.24 µs)

(Long Pulse 100±5 µs)

Frequency Channel – A Channel - B

Short Pulse Long Pulse Short Pulse Long Pulse

Note:

3. Peak Power Measurement (Ref SAT Doc)

Connect the peak power meter through a 20-dB ground power cable to the transmitter

forward power coupler. Trigger the peak power meter from J7 of the synchronizer

card for the channel under test.

Coupler faction = 86.43 dB

(Includes cables) (L-Band)

Peak Power = 40 KW Min

(L-Band)


32


Tx Module

Channel A Channel B

Measured Short

Pulse Power

Measured Long

Pulse Power

Measured Short

Pulse Power

Measured Long

Pulse Power

TX#1

TX#2

TX#3

TX#4

TX#5

TX#6

TX#7

TX#8

TX#9

TX#10

TX#11

TX#12

TX#13

TX#14

TX#15

TX#16

Note:

4. As per Stability Measurement (Ref SAT Doc)

At the on line selected SCDI select the PSR (Channel A or B) Manual Stability Test

Control/Result Menu.


33


Loop Track Injection Beam/Pulse

Channel A

Result

(>50dB)

Channel B

Result (>50dB)

Exciter Output Down Conv I/P Tgt SP

Exciter Output Tgt LP

Exciter Output Wx SP

Exciter Output Wx LP

Tx Driver Sample Down Conv I/P Tgt SP

Tx Driver Sample Tgt LP

Tx Driver Sample Wx SP

Tx Driver Sample Wx LP

Tx Output

Sample Down Conv I/P Tgt SP

Tx Output

Sample Tgt LP

Tx Output

Sample Wx SP

Tx Output

Sample Wx LP

Note:





34


Maintenance Schedule of Power Supplies (Raytheon23SS) (Ref PSR Sec5 of Equipment Manual)

Date:

S.

N.

Unit/

Assembly

Service

Required Remarks

1 REX

DC Power

Supplies

(Monthly)

Unit 8V(8±0.4) 18.5(18.5±0.9V

) -8V

-

18.5V

A11A2(B)

A11A2(B)

Spare Power

Supplies

(Quarterly)

G440627-1

2 SDP

DC Power

Supplies

(Monthly)

Unit 5V(+0.2/-

0.085) 12V ± 0.2v -12V ± 0.2V

A11A1(B)

A11A1(B)

Spare Power

Supplies

(Quarterly)

G440535-1

3 APC

UPS Battery Back Time

Note: Reset both SCDIs and SDPs one by one once in a month.

(Signature of the duty Officer) (Signature of Unit-In-Charge)

(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10,

DGCA CAR’S AND MANUFACTURER’S TECHNICAL MANUAL.)


35


MSSR MAINTENANCE SCHEDULE - MONTHLY

Station: L-Band Radar Date:

Pulse Width and Spacing Measurement

Sr

No Measurements Parameters Standard Value

Measured / Actual

Value

1 P1 Width 0.8 ± 0.1

2 P2 Width 0.8 ± 0.05 – 0.1

3 P1 Width 0.8 ± 0.1

4 P1 Width 0.8 ± 0.1

5 P1 Width 16.25 or 30.25 ± 0.6

6 P1 Width 2.0 ± 0.07

7 P2 Leading Edge to P6 Sync Phase

Reversal 2.75 ± 0.1

8 P6 Leading Edge to P6 Sync Phase

Reversal 1.25 ± 0.04

(Sign of Unit In-Charge) (Sign of Duty Officer)




36


A) Mode Programme 18 Via CMS Terminal

Verified that a Mode A interrogation is transmitted followed by a short P4 pulse of width

(0.8 ± 0.1 us) __________________ spaced (2.0 ± 0.07 us) _______________ from P3

pulse proceeded by a Mode S only all call.

B) Mode Programme 17

Verified that a Mode A interrogation is transmitted followed by a long P4 pulse of width 1.6

± 0.1 us) _______________ spaced (2.0 ± 0.07 us) _______________ from P3 pulse.

C) Mode Programme 20

Verified that a two Mode interface pattern is transmitted consisting of alternate Mode A and

Mode C with short P4, preceded by Mode S only all call.

Peak Power Measurement

a) With Peak Power Analyzer connected to J27

P1 Peak power output (> 30.85 dBW) ____________________

P3 Peak Power output (> 30.85 dBW) ____________________

b) With Peak Power Analyzer connected to J24

P2 Peak Power output (>30.85 dBW) ____________________

(Sign of Unit In-Charge) (Sign of Duty Officer)




37


Quarterly Maintenance Schedule of PSR (Raytheon ASR10SS/23SS)

Station: L-Band Radar Date:

SN Unit /Assembly +40 V +30V +5 -15V Remarks

1 Driver-A

2 Driver-B

3 PA-

4 PA-2

5 PA-3

6 PA-4

7 PA-5

8 PA-6

9 PA-7

10 PA-8

11 PA-9

12 PA-10

13 PA11

14 PA-12

15 PA-13

16 PA-14

17 PA-15

18 PA-16

(Signature of Duty Officer) (Signature of Unit-In-Charge)

(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA CAR’S

AND MANUFACTURER’S TECHNICAL MANUAL.)


38


ANTENNA PREVENTIVE MAINTENANCE SCHEDULE

L-Band Radar (ASR23SS)

Site : VIDP-2

Sr

No Description Frequency Remarks

6 Months 12 Months 2 Years 4

Years 8 Years

1 Paint Work

2 Fasteners

3 Noise

4 Motor Bearings

5 Clutch Gap

6 Clutch Drive Plate

7 Inspection Gears

8 Heater Operation

9 Lubricant Level

10 Lubricant Filter & Oil

Change

11 Labyrinth Greasing

12 Lubrication Unit

Exchange


Name : Name :

Designation : Designation :




39


PREVENTIVE MAINTENANCE SCHEDULE - DAILY

Station : Region: Date: Equipment: PSR Make/Model: Selex-Si/ATCR33S DPC Frequency: 2775/2825MHz 1. General :

S.No. PARAMETER STATUS REMARKS

1.1 General cleanliness of Equipment room

1.2 Status of air conditioners AC1: AC2: AC3:

1.3 Equipment room temp(18±2°C)

1.4 Status of obstruction lights

1.5 Mains Power supply 3Φ (380V±15%)

1.6 UPS Status UPS1: UPS2:

1.7 Equipment switch board Status

1.8 Any unusual noise observed in Antenna Room

2. Front Panel Indications:

S.No PARAMETER NOMINAL STATUS REMARKS

2.1 TX Power On LED should glow Green

2.2 TX Driver Blower Assy. Indications should not glow

2.3 MCA Ch A/B DS1 should glow Red

2.4

HPA Driver 1/2

Selected driver POW & RAD should

glow Green

2.5

HPA 1 to 8

HPAs POW & RAD LEDs should glow

Green

2.6 TX Main Amp Blower Indications should not glow

2.7

DPC RX-A

Indications should glow steady

Green

2.8 Lamp Test RX- A All LEDs Should glow

2.9 Status of LEDs in SP RX-A

(BA,BE,TA2 CCAs)

Should not glow

2.10

DPC RX-B

Indications should glow steady

green

2.11 Lamp Test RX- B All LEDs Should glow

2.12 Status of LEDs in SP RX-B

(BA,BE,TA2 CCAs)

Should not glow

3. Voltage Performance Check


3.1 DPC RX-A +15/-15/+5/-5V DC

3.2 DPC RX-B +15/-15/+5/-5V DC

3.3

AMDU Mot1/Mot2 power

On

Green

3.4

AMDU EDR Card Power

supply

Green


40


4. Monitor Data: LCP PSR

S.No PARAMETER NOMINAL STATUS CHANNEL REMARKS

RX-A RX-B

4.1 Link Green OK

4.2 CTRL Green OK

4.3 MST/SLV Green OK

4.4 LP/CP Green OK

4.5 DET Green OK

4.6 PLB Green OK

4.7 ANT Green OK

4.8 TX Green OK

4.9 RF/IF Green OK

4.10 SP Green OK

4.11 DP Green OK

4.12 PS Green OK

4.13 T&F Green OK

5. PSR Data In LCP & DPC

S.No MENU PARAMETERS NOMINAL OBSERVATION IN LCP

5.1

Control

Ant scan On/Off

Polarization select Manual/Auto

Polarization Linear/Circular

Radiation On/Off

Channel Select Manual/Auto

Master Channel RX A/B

Control Local

5.2 LCP Alarms Alarms As registered by LCP

5.3

TX

Output Power

(Available)

10.0 KW

VSWR OK

5.4

TX STATUS NOMINAL STATUS REMARKS

Link Green

RX A Grey/Green

RX B Grey/Green

PWD Grey/Green

RX LINK Green

RX SYNC Green

MAINT Grey

RAD Green

READY Green

5.5 SETTING

MCA CHANNEL


41


Operative CH A/B

Mode Auto

HPA DRIVER

Mode Auto

5.6 Channel c/o Status Operation

6. Observations:

S.No PARAMETER STATUS REMARKS

6.1 RMM Operation(Check for Targets & RTQC Painting)

6.2 RHP Operation (Online RHP)

6.3 LAN switches A & B

6.4 Status of OFC Link With Operative Site

6.5 Status of GPS Clock (Check for Sync with RHP&

RMM)

( )


NAME:

DESIG:


( )


NAME:

DESIG:




42


PREVENTIVE MAINTENANCE SCHEDULE- WEEKLY Station : Region: Date: Equipment: PSR Make/Model: Selex-Si/ATCR 33S DP Frequency: 2775/2825MHz

S.No PARAMETER NOMINAL VALUE

MEASURED VALUE REMARKS

Channel A Channel B

1.1 Bite Alarms Logic Check OK

1.2

Receiver & Frequency Synthesizer (Voltage/ Current(Max) )

+15V/ 16A

-15V/ 16A

+15V/ 7A

-15V/ 7A

Data Processor (A21) (Voltage/ Current(Max) )

+5V/ 70A

+15V/ 3A

-15V/ 3A

Signal Processor (A41) (Voltage/ Current(Max) )

+5V/ 70A

+15V/ 3A

-15V/ 3A

Signal Processor (A42) (Voltage/ Current(Max)

+5V/ 70A

+15V/ 3A

-15V/ 3A

V min V Temp

HP DRIVER 1 36V/ 3 V

2 36V/ 3 V

FINAL HP AMPLIFIER

1 36V/ 3 V

2 36V/ 3 V

3 36V/ 3 V

4 36V/ 3 V

5 36V/ 3 V

6 36V/ 3 V

7 36V/ 3 V

8 36V/ 3 V

1.3 Online Test for TX MCA Ch-A TX MCA Ch-B

OK OK

C/O Operation

( )


NAME:

DESIG:


( )


NAME:

DESIG:




43


PREVENTIVE MAINTENANCE SCHEDULE - MONTHLY Station : Region: Date: Equipment: PSR Make/Model: Selex-Si/ATCR 33S DPC Frequency: 2775/2825 MHZ PSR CHECKS

S.No

NAME OF THE CHECK

NOMINAL STATUS

ACTUAL STATUS REMARKS

Channel A Channel B

1.1 Programmability of Target Low/High beam selection

OK

1.2 Programmability of weather Low/High beam selection

OK

1.3 Programmability of Target STC Law OK

1.4 Programmability of weather STC Law OK

1.5

Weight Selection Map

OK

Operative Maps check

1.6 STAC & FDM OK

1.7 STEM Target OK

1.8 STEM Weather OK

1.9 ACOM Map OK

1.10 DBM Map OK

1.11 DCOM Map OK

1.12 CLM Map OK

1.13 FAN Map OK

1.14 Clutter Sensor map OK

1.15 Fine Doppler Map OK

1.16 Independent Weather Channel OK

1.17 Weather level Display OK

2.0 TX Assy. Blowers operation check OK

2.1 TTG Check OK ( )


NAME:

DESIG:


( )


NAME:

DESIG:




44


PREVENTIVE MAINTENANCE SCHEDULE- SIX MONTHLY Station : Region: Date: Equipment: PSR Make/Model: Selex-Si/ATCR 33S DPC Frequency: 2775/2825MHz PSR Checks:

S.No PARAMETER NOMINAL VALUE MEASURED VALUE REMARKS Channel A Channel B

1.1

640/670Mhz Generator

≤23.5Khz from 670Mhz ≤23.5Khz from 640Mhz

1.2

Sensitivity Check Target Channel: Weather Channel:

≤120dbm ≤120dbm

1.3 TX pulses Waveform & Power level Checks (RX Section)

15dbm

1.4

TX Output Pulses & measurement of RF Power level (I/P to RF Driver)

12 to14dbm

1.4.1 RF Drive pulse 60dbm

1.4.2 TX Output Power ≥9.5KW(70dbm)

1.4.3

Power level without one HPA module

≥7Kw

1.4.4

Transmitter RF pulse width

Short pulse:10ms±2% Long Pulse:100ms±2%

( )


NAME:

DESIG:


( )


NAME:

DESIG:




45


PREVENTIVE MAINTENANCE SCHEDULE- YEARLY Station : Region: Date: Equipment: PSR Make/Model: Selex-Si/ATCR 33S DPC Frequency: 2775/2825MHz 1. PSR Checks:

S.No

PARAMETER

NOMINAL STATUS

ACTUAL STATUS REMARKS

Unit1 Unit2

1.1 Antenna Base leveling Check OK

1.2

Slip rings and brushes consumption Check and Lubrication

OK

1.3 Gear Oil Replacement OK

1.4 Antenna base lubrication OK

1.5

Antenna Base oil replacement

OK

Every alternate year

1.6

Antenna Tower structure check

OK

Every alternate year

1.7

Antenna Reduction gear Motor overhaul and inspection

OK

Once in four years

1.8

Antenna protection check

OK

Once in four years

( )


NAME:

DESIG:


( )


NAME:

DESIG:




46


PREVENTIVE MAINTENANCE SCHEDULE- DAILY Station : Region: Date: Equipment: SSR Make/Model: Selex-Si/SIR-S Frequency: 1030MHz 1. General :


1.1 General cleanliness of Eqpt room

1.2 Status of air conditioners AC1: AC2: AC3:

1.3 Equipment room temp(18±2°C)

1.4 Status of obstruction lights

1.5 Mains Power supply P-N(230V+/-10%)

1.6 UPS Status UPS1: UPS2:

1.7 Equipment switch board Status

1.8 Any unusual noise observed in Antenna Room

2. Front panel indications:


Ch-A Ch-B

2.1

CHANGE OVER UNIT OK/Not OK OK/Not OK

Change Over DC Indicators should

glow Green

Relays

Fan

RPCM mismatch

TXRX1/TXRX2

2.2

PDA & OCP ASSY

PWR On Indicator should glow Green

Lamp test:

RPCM Fail/OVT Indicators should not Glow

RX Fail/OVT

TX Fail/OVT

2.3

RPCM PC Assembly

CPU

Indicators should glow Green

BFL/COM1

Indicator should glow Yellow

2.4

TXIP(A7)

General failure

Indicator should not glow

Radiation status Indicator should

glow steady Green

ON/OFF

CPU OK

Lamp test


47


3. Voltage Performance Check


Ch-A Ch-B

3.1 PDA&OCP Assembly PWR On: Green

3.2

RPCM

PSU Switch On/Off

PSU: +5V, +/-12V PWR On: Green

PSU: +24V, +/-5V

3.3

Receiver Assembly

PSU Switch On/Off

PSU: +5V, +24 V PWR On: Green

PSU: +/-5V

PSU: +/-15V

3.4

TX Assembly

Main Driver Amp

PWR OK: Green

Aux Driver Amp

Main High Power 1 Amp

Main High Power 2 Amp

Aux High Power Amp

3.5 RF Source Green

PWR OK

3.6 TXIP(A7) Green

PWR OK

DETECTOR Green

PWR OK

4. Monitor Data:

S.No

PARAMETER

NOMINAL

TOLERANCE CHANNEL REMARKS

RX-A RX-B

4.1 LINK Green OK

4.2 CROSS Green OK

4.3 RAD Green OK

4.4 Ant On/Off Green OK

4.5 CHG Green OK

4.6 OWN CH Green OK

4.7 OTH CH Green OK

4.8 OWN MST/SLV Green OK

4.9 OWN TEMP Green OK

4.10 OWN RPCM Green OK

4.11 OWN TX Green OK

4.12 OWN RX Green OK


48


4.13 OTH RX Green OK

5. SSR Data:

S.No PARAMETER NOMINAL OBSERVATION MADE AT LCP

5.1 Antenna Scan rate 3.84 sec

RPCM Mastership A/B

Change over Auto/Manual

Change over position A/B

Radiation On/Off

Control Local/Remote

5.2 LCP Alarms As registered by LCP

6. Dual Channel Remote SSR Monitor Interface: Bite Status:

PARAMETER NOMINAL ACTUAL PARAMETER NOMINAL ACTUAL

Comm. Link Active PC Enabled Green

Controller 1 OK PS1 OK Green

Controller 2 OK PS2 OK Green

7. Observations:


6.1 RMM Operation (check for Targets & CPME painting)

6.2 RHP Operation (Online RHP)

6.3 LAN switches: A & B

6.4 Status of OFC Link With Operative Site

6.5 Status of GPS Clock (Check for Sync with RHP&RMM)

( )


NAME:

DESIG:


( )


NAME:

DESIG:




49


PREVENTIVE MAINTENANCE SCHEDULE- WEEKLY Station : Region: Date: Equipment: SSR Make/Model: Selex-Si/SIR-S Frequency: 1030MHZ SSR & UPS Checks

S.No PARAMETER NOMINAL VALUE


Channel A Channel B

1.1 Bite Alarms logic Check OK

1.2 Redundancy Check OK

1.3

UPS MEASUREMENTS

SYSTEM

V P-P 405 VAc

V P-N 234 VAc

I OUT

LOAD

PKVA/PKW/PF

INT TEMP 20°C

RECTIFIER

V P-P 406 VAc

V DC 432 V

I DC

BATTERY

V DC 432 V

I DC

INVERTER

V OUT 408 VAc

VDC 432 V

I DC

FREQ 50.0 Hz

RESERVE LINE V P-N 230 VAc

FREQ 50±2.5HZ

UPS EVENTS

UPS LOAD TEST ON BATTERY

1.4

TTG CHECK

Conventional Mode OK

Mode-S OK

1.5 Communication Link OK

UPS: 60 KVA EATON Powerware, Italy. UPS model PW9300 Series Software: ROM 2000 A01 U29 10400 V3.10 Battery: 100AHMF; Battery Bank: 36X12VDC

( )


NAME: DESIG:


( )


NAME: DESIG:




50


PREVENTIVE MAINTENANCE SCHEDULE- MONTHLY Station : Region: Date: Equipment: SSR Make/Model: Selex-Si/SIRS Frequency: 1030MHz SSR Checks :

S.No

PARAMETER

NOMINAL VALUE


Channel-A Channel-B

1.1 Cabinet Air filters replacement OK/ Not OK

1.2

Initial setting verification

OK/ Not Ok

( )


NAME:

DESIG:


( )


NAME:

DESIG:




51


PREVENTIVE MAINTENANCE SCHEDULE- SIX MONTHLY Station : Region: Date: Equipment: SSR Make/Model: Selex-Si/Sir-S Frequency: 1030MHz SSR Checks

S.No

PARAMETER

NOMINAL VALUE

MEASURED VALUE Remarks Channel A Channel B

1.1 Receiver Tangential sensitivity Check

1.2 Receiver frequency and Bandwidth

1.3 Transmitter Output power level 62dbm

1.4

TX output power selection and sectorization

1.5 Pulse spacing:P2 to P1 delay 2±0.05µs(All modes)

P3 to P1 delay 8 ±0.10µs(Mode3/A) 21 ±0.10µs (Mode C)

P4 toP3 delay 2±0.05µs

P5 to P2 delay 2.35±0.05µs wrt Sync. phase reversal

P6 toP2 delay 1.5±0.05 µs wrt Sync. Phase reversal

1.6 Pulse shape of Transmitter: Pulse P1,P2,P3,P5: 8±0.10 µs P4(Short):0.8±0.10µs P4(long):1.6±0.10 µs P6(short):16.25±0.25 µs P6(long)*:30.25±0.25 µs * for reference only

Rise time & decay time

2.0 Transmitter pulse power spectrum

2.1 TTG Check

2.2 Bite Check and Redundancy Check

2.3 VSWR check

2.4 Test Transponder POD 98% ( )


NAME: DESIG:


( )


NAME: DESIG:




52


PREVENTIVE MAINTENANCE SCHEDULE OF MSSR -DAILY

MAKE: INDRA MODEL : IRS 20MP/S

Station : Date :

Parameters to be

Checked

Normal

Status

Status

Observed

Remarks

1.0 General

1.0.1 Cleanliness Dust Free

1.0.2 Temp 18 - 22 Deg C

1.0.3 Equipment

Cleanliness

Dust Free

1.0.4 Obstruction Light Working Okay

1.1 On Line Transmitter CTT1 or CTT2 Observations on

SLG

1.1.1 Status of Online TX G / O / R

1.1.1.1 Status of SAU G / O / R

1.1.1.2 Status of SDU G / O / R

1.1.1.3 Status of TRA G / O / R

1.1.1.4 Status of EMU G / O / R

1.1.1.5 Status of CTU G / O / R

1.1.1.6 Status of TPS G / O / R

1.1.2 Status of Standby TX Y/ O / R

1.1.2.1 Status of SAU G / O / R

1.1.2.2 Status of SDU G / O / R

1.1.2.3 Status of TRA G / O / R

1.1.2.4 Status of EMU G / O / R

1.1.2.5 Status of CTU G / O / R

1.1.2.6 Status of TPS G / O / R

1.2 Status Ant. Motor1 G / O / R

1.3 Status Ant. Motor2 G / O / R

1.4 On Line Extractor MEX-MRU1

/MEX-MRU2

1.4.1 Status of Online

MEX-MRU

G / O / R

1.4.1.1 Status of MRU G / O / R

1.4.1.2 Status of MCPU G / O / R

1.4.1.3 Status of MICA 2 G / O / R


1.4.1.5 Status of MFEX G / O / R


53


( )

SIGN OF DUTY OFFICER

NAME:

DESIG:


( )

SIGNATURE OF UNIT IN-CHARGE.

NAME:

DESIG:



1.4.1.6 Status of MVEX G / O / R

1.4.2 Status of S/By

MEX-MRU Y/ O / R

1.4.2.1 Status of MRU G / O / R

1.4.2.2 Status of MCPU G / O / R



1.4.2.5 Status of MFEX G / O / R

1.4.2.6 Status of MVEX G / O / R

1.5 External Signals

1.5.1 ACP1 G / O / R

1.5.2 ARP1 G / O / R

1.5.3 ACP2 G / O / R

1.5.4 ARP2 G / O / R

1.5.5 FFM G / O / R

1.5.6 UTC1 G / O / R

1.5.7 UTC2 G / O / R

1.6 Data Output Sources

1.6.1 Asterix 01 LAN/COM

1.6.2 Asterix 48 LAN/COM


54


PREVENTIVE MAINTENANCE SCHEDULE OF MSSR – Monthly

MAKE : INDRA MODEL : IRS 20MP/S

Station : Date :

Parameters to be

Checked

Normal

Status

Status

observed

Remarks

1.0 General Inspection

1.0.1 Antenna Pedestal

1) No Oil Spillage

2) No Unusual sound

3) Fans operating Okay

1.0.2 All earth pits Clear of Grass/

Connections intact

1.1 Pedestal Control Box

1.1.1 Motor 1 oil level lamp Not lit

1.1.2 Motor 2 oil level lamp Not Lit

1.1.2 Push Test Lamp

Switch

All lamps lit

1.1.3 Check the Fan Operating okay

1.1.4 Out Put of PS1 24V +/- 1 V

1.1.5 Out Put of PS2 24V +/- 1 V

1.1.6 Out Put of PS3 24V +/- 1 V

1.1.7 Out Put of PS4 15V +/- 1 V

1.1.8 Out Put of PS5 15V +/- 1 V

1.1.9 Check Status of RV1

(AC discharges)

If Red Replace the

cartridge


(AC discharges)

If Red Replace the

cartridge


(AC discharges)

If Red Replace the

cartridge

1.1.12 Check all VDC

dischargers

Replace if any found

faulty

1.2 Mode-S Interrogator-I

1.2.1 TPS Voltages

+ 48 V +48V +/- 5V

+28 V +28V +/- 3 V

+ 15 V +15V +/- 1.5 V

+5 V +5V +/-0 .5 V


55



SIGN OF UNIT IN CHARGE. SIGN OF CNS IN CHARGE

NAME: NAME:

DESIGNATION: DESIGNATION:



- 15 V -15V +/- 1.5V

1.2.2 MEX Power Supplies

+ 5 V +5V +/- 0.5V

+ 12 V +12V +/- 1.2 V

- 12 V -12V +/- 1.2 V

+ 15 V +15V +/- 1.5 V

- 15 V -15V +/- 1.5 V

+ 3.3 V +3.3V +/- 0.2V

1.3 Mode-S Interrogator-II

1.3.1 TPS Voltages

+ 48 V +48V +/- 5V

+28 V +28V +/- 3 V

+ 15 V +15V +/- 1.5 V

+5 V +5V +/-0 .5 V

- 15 V -15V +/- 1.5V

1.3.2 MEX Power Supplies

+ 5 V +5V +/- 0.5V

+ 12 V +12V +/- 1.2 V

- 12 V -12V +/- 1.2 V

+ 15 V +15V +/- 1.5 V

- 15 V -15V +/- 1.5 V

+ 3.3 V +3.3V +/- 0.2V

1.4 Print outs

1.4.1 Site / Tracking Tab

1.4.2 GTC map Tab

1.4.3 Power Tab

1.4.4 Reflector Tab


56


4.0 Extractor Antenna Interface Checks: Channel 2

4.1. Encoder 1

4.1.1 ARP Present Present

4.1.2 ACP Present Present

4.1.3 ACP per ARP 16384

4.2 Encoder 2



4.2.3 ACP per ARP 16384

PREVENTIVE MAINTENANCE SCHEDULE OF MSSR - Six Monthly

MAKE : INDRA MODEL : IRS 20MP/S

Station : Date :

Parameters to be

Checked

Normal

Status

Status

observed

Remarks

1.0 Monthly

Maintenance

Carried out

2.0 Frequency Checks

2.1 Transmission

Frequency Channel 1

1030 +/- .01

MHz

2.2 Transmission

Frequency Channel 2

1030 +/- 0.01 MHz

3.0 Extractor Antenna Interface Checks: Channel 1

3.1 Encoder 1



3.1.3 ACP per ARP 16384

3.2 Encoder 2



3.2.3 ACP per ARP 16384


57



SIGN OF UNIT IN CHARGE SIGN OF CNS INCHARGE

NAME: NAME:

DESIGNATION: DESIGNATION:



5.0 Reflector Map generation Channel - I

5.1 Reflector Generation Generated

5.2 Add the selected

Reflectors

Added

5.3 Manual reflectors Add if needed

6.0 Reflector Map generation Channel - II

6.1 Reflector Generation Reflector

Generation

6.2 Add the selected

Reflectors

Added

6.3 Manual reflectors Add if needed

7.0 Monopulse Curve Generation Channel - I

7.1 Generate the Curve Generated

7.2 Compare with main

Map

Identical

8.0 Monopulse Curve Generation Channel - II

8.1 Generate the Curve Generated

8.2 Compare with main

Map

Identical


58


PREVENTIVE MAINTENANCE SCHEDULE OF MSSR – Annually

MAKE: INDRA MODEL : IRS 20MP/S

Station : Date :

Parameters to be

Checked

Normal

Status

Status

observed

Remarks

1.0 Monthly Maintenance Carried out

2.0 Six Monthly

Maintenance Carried out

3.0 Pedestal Checks

3.1 Bearing Ring greasing Carried out

3.2 Check oil level in

motor / gear box

Level OK

3.3 Check Pedestal fan OK

3.4 Check heater OK

3.5 Check Date of Last

Labyrinth Greasing

If more than 2 years

Grease

3.6 Check Date of Last

Mechanical AITS

Greasing


Grease

3.7 Check Date of

Motor/Gear Box Oil

Change/Greasing


Change oil/Grease the

bearings

3.8 Check condition of

Fans

Replace if required

3.9 Check condition of

pedestal seals Replace if required

4.0 Check Receiver Raw Video Output

4.1 Channel – I

4.1.1 Video Present at TP-

23 VS-MRU Present


12 VO-MRU Present

4.1.3 Video Present at TP-6

VD-MRU Present

4.2 Channel - II


23 VS-MRU Present


12 VO-MRU Present

4.2.3 Video Present at TP-6

VD-MRU Present


59


5.0 Measure Receiver Nominal Frequency

5.1 Channel - I

5.1.1 Sum 1090 +/- 0.5 MHz

5.1.2 Omni 1090 +/- 0.5 MHz

5.1.3 Difference 1090 +/- 0.5 MHz

5.2 Channel - II

5.2.1 Sum 1090 +/- 0.5 MHz

5.2.2 Omni 1090 +/- 0.5 MHz

5.2.3 Difference 1090 +/- 0.5 MHz

6.0 Measure the Receiver Bandwidth

6.1 Channel – I

6.1.1 SUM

6.1.1.1 At 3 dB

6.1.1.2 At 40 dB >/= 2.5 times at 3 dB

6.1.1.3 At 60 dB >/= 4.5 times at 3 dB

6.1.2 OMNI

6.1.2.1 At 3 dB > 8 MHz

6.1.2.2 At 40 dB >/= 2.5 times at 3 dB

6.1.2.3 At 60 dB >/= 4.5 times at 3 dB

6.1.3 DIFFERENCE

6.1.3.1 At 3 dB > 8 MHz

6.1.3.2 At 40 dB >/= 2.5 times at 3 dB

6.1.3.3 At 60 dB >/= 4.5 times at 3 dB

6.2 Channel – II

6.2.1 SUM

6.2.1.1 At 3 dB > 8 MHz

6.2.1.2 At 40 dB >/= 2.5 times at 3 dB

6.2.1.3 At 60 dB >/= 4.5 times at 3 dB

6.2.2 OMNI

6.2.2.1 At 3 dB > 8 MHz

6.2.2.2 At 40 dB >/= 2.5 times at 3 dB

6.2.2.3 At 60 dB >/= 4.5 times at 3 dB

6.2.3 DIFFERENCE

6.2.3.1 At 3 dB > 8 MHz

6.2.3.2 At 40 dB >/= 2.5 times at 3 dB

6.2.3.3 At 60 dB >/= 4.5 times at 3 dB

7.0 Measure the Receiver Dynamic Range

7.1 Channel - I

7.1.1 Plot for SUM Graph Plotted

7.1.2 Plot for OMNI Graph Plotted

7.1.3 Plot for Graph Plotted


60



(SIGN OF UNIT IN CHARGE.) (SIGN OF CNS IN CHARGE)

NAME: NAME:

DESIGNATION: DESIGNATION: (THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA CAR’S


DIFFERENCE

7.2 Channel - II

7.2.1 Plot for SUM Graph Plotted

7.2.2 Plot for OMNI Graph Plotted

7.2.3 Plot for

DIFFERENCE

Graph Plotted

8.0 Measure Receiver Tangential Sensitivity

8.1 Channel - I

8.1.1 SUM < -87 dBm

8.1.2 OMNI < -87 dBm

8.1.3 DIFFERENCE < -87 dBm

8.2 Channel - II

8.2.1 SUM < -87 dBm

8.2.2 OMNI < -87 dBm

8.2.3 DIFFERENCE < -87 dBm

9.0 Measure Receiver Out of Band Rejection

9.1 1090 + 25 MHz

9.1.1 Channel - I

9.1.1.1 SUM >/= 60 dB

9.1.1.2 OMNI >/= 60 dB

9.1.1.3 DIFFERENCE >/= 60 dB

9.1.2 Channel – II

9.1.2.1 SUM >/= 60 dB

9.1.2.2 OMNI >/= 60 dB


9.2 1090 – 25 MHz

9.2.1 Channel - I

9.2.1.1 SUM >/= 60 dB

9.2.1.2 OMNI >/= 60 dB


9.2.2 Channel - II

9.2.2.1 SUM >/= 60 dB

9.2.2.2 OMNI >/= 60 dB



61


Daily Maintenance Schedule

ELDIS RL-2000/MSSR-1 Station : Date:

Sl.

No.

Check Point Standard

values

Observations Remarks

PSR ( RL 2000 )

01 Equipment Room Cleanliness ok /not ok

02 Equipment Room Temperature 16-24˚ C

03 Room Temp. of Battery Room 16-24˚ C

04 Equipment Room Air Conditioning Functionality ok /not ok

05 Input Supply of UPS Commercial/DG set

06 UPS Operation on UPS 1 / UPS 2 & status ok /not ok

07 PSR Online Channel CH A / CH B CH A / CH B

08 PSR Tx output Power as observed in LCMS /RCMS 14±1 kw

09 PSR Reflected Power 250±50W

10 Calculated VSWR 1.3 ±0.05

11 Check SPDR indication ok /not ok

12 EMOS page observation , alarms to be checked

13 Functionality of WG Pressurizer (APV2) ok /not ok

14 Functionality of obstruction light ok /not ok

15 Check for any abnormal sound, E/Room /Ant ok /not ok

16 Check 38 DC Volts in Exciter and TFSE amplifier ok /not ok

17 Check RX. dc voltages 12/18/-18 volts in rack AB green/red

18 Check LED for 18/12/6/-8V on RF-GEN unit panel green/red

19 Check RDE DC Voltages ±12/±5/+3.3 V indication green/red

20 Check all 4 RF frequencies in operation ok /not ok

21 Check for any module failure of HPA (TFSE) ok /not ok

22 Polarization status Linear / Circular Lin/Cir

23 Permanent Echo observed in RMM ok /not ok

24 Noise level in DB of main/aux/met beam < -60 db

MSSR ( MSSR – 1)

01 MSSR Online Channel CH A / CH B CH A / CHB

02 Interrogator operation normal or Crossed Norm/Cro

03 MSSR Forward Power / VSWR -- SUM Ch 3±0.5 kw

04 MSSR Forward Power / VSWR -- OMEGA Ch 3±0.5 kw

05 VSWR of SUM Ch / Omega Ch. 1.3 ±0.05

06 Test Transponder 1311/1312 observed in RMM ok /not ok

07 PRF / Interrogator pattern no. in operation. 350 / 4

08 Overall status of TSSR and ISSR units ok /not ok

09 48/18/12/36/8 volts LED status on TSSR green/red

10 DC voltages +-12/+-5/+3.3 volts in ISSR green/red


62


REMARKS :



11 Noise figure of Sigma/Delta/Omega Channel < 3.0db

12 Connectivity of Mode S processor with other unit ok /not ok

13 ADS B Receiver Status ok /not ok

PSR & MSSR Standard

Values

Observations Remarks

01 Check any unusual sound from Antenna Cabin ok /not ok

02 Ant. Hut Room Temperature 15-50 °C

03 Inverter Power supply & output status ok /not ok

04 AILAN operating status including ACP/ARP status ok /not ok

05 NTP 1 &2 Servers operation status ok /not ok

06 Status of Eth Sw& M.C (Moxa) at Radar/APP ok /not ok

07 Antenna rotational speed 15 rpm

08 Status of APOID & OLTB block in Radar site / APP ok /not ok

09 Status of SCS switch in Radar and Ant. Hut ok /not ok

10 Status of LCMS/RCMS/RDP/SMP/RMM Processor ok /not ok

11 Status of Oil level in Antenna main gear > 80% > 80%

12 Recording process of PSR/MSSR data ok /not ok

13 Status OFC link and RF link from Radar to APP ok /not ok

14 PSR & MSSR data connectivity with ADP ok /not ok

15 Total count of ACP pulse from encoder 16384

16 ACP and ARP status green/red

Signature of Duty officer:

Name:

Designation: Date:

Signature of Unit-in-charge

Name:

Designation: Date:


63


Daily Maintenance - UPS

Make: Model:

Station: Date:

SN Parameters Observation UPS-I Observation UPS-II

L1 L2 L3 L1 L2 L3

01 Output voltage(V)

230±5Vac

02 Output current(A) 20±5

A

03 Active power(KW) 5±2

kw

04 Reactive power(KVAr)

2±2kvar

05 Apparent power(KVA) 3-6

kva

06 Output power(%) 15±5

%

07 Rectifier voltage(V)

230±5Vac

08 Bypass voltage(V)

230±5Vac

09 Battery voltage(V)

295±10 V

10 Battery charge current(A)

11 Batt. discharge current(A)

12 Battery run time(HHMM)>2Hrs

13 Battery capacity (%) 100%

14 Frequency(Hz) 50±1 Hz

15 Bypass frequency(Hz) 50±1 Hz

16 Module temperature Inv. 38-50 °C

Remarks:


Name:

Designation: Date:


Name:

Designation: Date:




64


Weekly Maintenance Schedule

ELDIS RL-2000/MSSR-1

Station : Date:

Sl.No. Check Point Observation Remarks

01 Antenna Cabin Cleanliness OK

02 Antenna Cabin Temperature 23 °C

03 Check the air filter condition in the cabin and clean it if

required or replaced it from stores.

Cleaned and

placed

04 Check any unusual sounds in the Antenna Cabin ,

equipment room and battery room and UPS

Nil

05 Check the oil level in the main /Aux. motor gear boxes OK

06 Check any oil leakage in main / Aux. gear boxes No leakage

07 Check the waste vessel of APV2 (wave guide

pressurizer) & excessive water shall be removed.

Water removed

08 Check antenna cabin fan M3 runs when temp > 30

degree and M3 & M4 both run when temp > 50 degree

Performed , OK

09 Check the transfer of radar data to display site through

OFC and RF link

Checked OK

10 Run the Main UPS from battery supply and check

battery voltages. Next week c/o to s/by ups and run from

battery supply and check battery voltages.

Performed OK

11 Functionality check of ventilation units (blower fans) in

all the equipment racks. Clean if required.

Performed OK

12 Check the functionality of all the modules of PSR

&MSSR and test transponders and monitor all

parameters from LCMS/RCMS.

All modules

found OK

13 Check the quality of targets from PSR, MSSR & ADS-

B. Check PEs, Test Transponder position in the RMM

and check noise/reflections/Spurious targets/splitting if

any and check any missing of targets in a scan and

check the range of targets for PSR & MSSR channel.

OK

PSR Transmitter page:- (LCMS or RCMS)

TEXC reading:-

On Line CH

Temperature Power measurement

A B C D

Forward Reverse Forward Reverse Forward Reverse Forward Reverse


65


PA Stage reading:-

Module PA Stage Power Supply Status—Green/Red

FWD PWR REV PWR Int.Temp Final Temp

ZSH A

ZSH B

PA-1

PA-2

PA-3

PA-4

PA-5

PA-6

PA-7

PA-8

PA-9

PA-10

PA-11

PA-12

PA-13

PA-14

PA-15

PA-16

MEPD Measurement:-

MEPD STATUS TX FWD PWR TX REV PWR TX VSWR

SPDR Page :-

PSR flow control:-

PSR RF Pwr-On/Off

Active PSR CH-A/B

Active Exc-1/2

PSR Fwd Pwr PSR Rev Pwr

VSWR MEPD Status –OK/Not OK

SPDR Status:-

Active SPDR

HF Relay Status- Green/Red 4-Way SW –Act/Not Act

External Signal Green/Red

4-W Cir over heat

W/Guide over press

Pump Failure

Pumps

Low High Mete Test horn

A B A B A B A B A B

PSTC Status-Green/Red

Lo Bite HI Bite Mete Bite M bm Sw Exc.

A B A B A B A B HF Bus


66


TxSSS-Mode Status from TxSS Mode Page

Active SSR Ch

Mode Operational—Green/Red

3/A C 1 2 3/A/S C/S S -all call

S- Roll call

All/3A ISLS IISLS

System Status from system page

CMS client connectivity-connection OK/Not OK LCMS1 LCMS2 RCMS1 RCMS2 DVAZ1 DVAZ2

PSR/MSSR SW Status --Green/Red

PSR SW-A PSR SW-B MSSR SW-A MSSR SW-B

Plot Video Plot Video Data Serv TimV Data Serv TimV

PSR/MSSR Channel --Green/Red

Master Channel Slave Channel

PSR MSSR PSR MSSR

Targ Serv TimV Targ Serv TimV Targ Serv TimV Targ Serv TimV

PSR/MSSR Scane--Green/Red

SSR Scane PSR Scane

Scan A Scan B Scan A Scan B

AC

P

AR

P

Syn

c

SSR

Vid

AC

P

AR

P

Syn

c

SSR

Vid

AC

P

AR

P

Syn

c

Raw

MTI

Met

e

AC

P

AR

P

Syn

c

Raw

MTI

Met

e

ApD Status Ok or Not Ok

ApD-Out1 ApD-Out2

Tg DCD Tg CTS OvLd Status Tg DCD Tg CTS OvLd Status


Name:

Designation: Date:


Name:

Designation: Date:




67


Monthly Maintenance Schedule

ELDIS RL-2000/MSSR-1 Station : Month :


01 Check functionality of cross coupling function of

encoders via LCMS.

02 If the B5 pressure switch in the antenna cabin indicates

the filter clogging, replace the filter.

03 Check if any unusual sound is heard from

E/Room/battery room and UPS.

04 Visual check of antenna switchboard signal elements in

AU(by opening front cover)— check for normal

indications

05 Visual check of signal elements of switchboards

AG/AA/AC/AD/AE/AI/AH rack and power sources

G1to G4 in AD rack and G1with G2 in MR Room.

06 Functionality check of automatic switch over to standby

MSSR-1 channel, alarm must be registered (By s/off of

ZNA4 power source of active channel)

07 Functionality check of S/By RL-2000 channel

08 All basic radar functionality check including controlling

(S/On—S/Off) from LCMS/RCMS.

09 Check the functionality of Test Transponders.

10 Check the alarm condition at LCMS by putting Test

Transponder on battery.

11 Check the functionality of A/c units compressors.

AILAN Page:-

Status—Green/Red

CH Invt PS

Invt O/P

Motor1 Motor2 Ant.Brake LO2 LO1 Rx Pwr Supply 18 V

Rx Pwr Supply 12 V

A

B

Frequency Inverter:-

On CH O/P FQ in Hz

O/P Curr.in Amp

O/P Volts

Run Mode Main Gear Oil Level in % Pwr On in

Hr Run Mode in Hr


68


Angle Information:-

CH Actual AI up dating or not

Rectification value

Max Deviation Value Main Deviation Value

A

B

AILAN Page:-

Antenna Rotation Speed :-

CH Rotation Speed in rot./min Revolution time in sec. Status Green/Red

Requested Measured Requested Measured ACP ARP

A

B

HF Relay Status—Green/Red:-

On CH SUM DIFF OMEGA

RF GEN-STC Page

STC Setting PSR CH

AUX BEAM MAIN BEAM METEO BEAM

Short Long Short Long Short Long

End (km)

Slope Db/dec

Depth db

End (km)

Slope Db/dec

Depth db

End (km)

Slope Db/dec

Depth db

End (km)

Slope Db/dec

Depth db

End (km)

Slope Db/dec

Depth db

End (km)

Slope Db/dec

Depth db

A

B

Rx Pwr Supply:-

PSR CH LOW BEAM HIGH BEAM METEO BEAM

+18 V +12 V -18 v +18 V +12 V -18 v +18 V +12 V -18 v

A

B

IF STAGE:-

AUX Beam:-

PSR CH

Noise Figure in db Noise Level in db Test Horn Pwr IF1 IF2 IF3 IF4 IF1 IF2 IF3 IF4

A

B


69


MAIN Beam:-

PSR CH


A

B

METEO Beam:-

PSR CH


A

B

RF GEN-STC Page -- Other—Status Red or Green

AUX Beam:-

PSR CH

Tx Mode ACP ARP Trigger CLK AGC Noise Ref.

A

B

MAIN Beam:-

PSR CH


A

B

METEO Beam:-

PSR CH


A

B


Name:

Designation: Date:


Name:

Designation: Date:




70


UPS MONTHLY MAINTENANCE SCHEDULE

UPS NO:-- Date of Commissioning: UPS Capacity:

Make: Model/Serial No.:

Battery Installed On: Battery Replacement Due On:

Output Voltage: Output Frequency:

Physical Inspection: NORMAL/ CRACKS/ BULGE/

LEAKAGE.

Battery Partial Discharge Test (After discharge of the batteries for a short duration).

Voltage after Discharge:-- Bat Volt Bat Volt Bat Volt Bat Volt Bat Volt Bat Volt Bat Volt

1 8 15 22 29 36 43

2 9 16 23 30 37 44

3 10 17 24 31 38

4 11 18 25 32 39

5 12 19 26 33 40

6 13 20 27 34 41

7 14 21 28 35 42

Backup Test:

From:--…………………….. To:--………………………

Battery Voltage at the beginning: Battery Voltage at the end:

Discharge Current: Operational Status: Ok/Not OK

Remarks If Any:

(SIGNATURE OF UIC) (SIGNATURE OF DUTY OFFICER)




71


Six-Monthly Maintenance Schedule

ELDIS RL-2000/MSSR-1 Station : Month :


01 Check the oil level in the main gear box and

Aux motor gearboxes and check any oil

leakage

02 Perform horizontal leveling of antenna at

equipment assembly. Check and possible

readjustment shall be carried out.

03 Perform lubrication of internal and external

O- ring/gasket.

04 Check the performance of thermostat ST2 for

M3 fan and Thermostat ST3 for M4 fan

(with the help of hot air gun)

05 Check the Antenna Cabin air filter condition

(open filter box lid) clean it up or replace.

06 Functionality check of motor de-blocking

switch Q1 (Unblocking Rotation switch) in

antenna switchboard

07 Check the blocking contact of antenna limit

switch S2 in ant cabin by releasing of an

locking peg from its wall holder.

08 Antenna unit – Check unusual sounds,

running irregularity, increased noise etc.

09 Visual check of antenna switchboard signal

elements in AU (by opening front cover)—all

must be lightning.

10 Performance check of the S3 rotation locking

contact(Ladder Limit Switch)

11 Visual check of signal elements of

switchboards AG/AA/AC/AD/AE/AI/AH

rack and power sources G1until G4 in AD rack

and G1with G2

12 Check the function of radar current protectors

in main switch board by pressing check

button on body of current protector.


72



13. Check of the APV2 over-pressure aggregate—

switch on/off pressure limits, compressor

operating period for the route standard

pressure.

Continued….

14 Check all the ventilators /Fan in rack AB to

AF (EPS block) AH & AI racks, ILANs,

Frequency converters, Computers rack, RF

Gen and RDEs – include eventual failure fan

diagnostic.

15 Functionality check of all indication lights on

radar switch boards (including indicators of

fuses, relays, source etc.)

16 Status check of grounding radar system

focused to connection points.

17 Check the transmission pulse shape of PSR

and MSSR

18 Check the peak power of transmission pulses

of PSR and MSSR

19 Check the earth resistances of all the seven

earth pits. Including grilled resistance

20 Check all the nuts and bolts of antenna system

and all connectors of equipments. Tighten if

found any loose contact.

21 Check warning sound from the hooter before

antenna starts rotation.


Name:

Designation: Date:


Name:

Designation: Date:




73


Annual Maintenance Schedule

ELDIS RL-2000/MSSR-1 Station : Month : S.No. Check Point Observation Remarks

01 Check the oil level in the main gear box and Aux motor

gearboxes and check any oil leakage. Replace the oil if the color

of oil become red and viscosity is less, as per procedure in

Volume-4.

02 Perform horizontal leveling of antenna at equipment assembly.

Check and possible readjustment shall be carried out.

03 Perform lubrication of internal and external O- ring/gasket.

04 Check the performance of thermostat ST2 for M3 fan and

Thermostat ST3 for M4 fan (with the help of hot air gun)

05 Status check of grounding of radar system focused to connection

points

06 Clean all computer electronics filter.

07 Check of the antenna tilt and pull rods condition and its

conservation

08 Check all radar cables and cable joints condition (e.g. earth

joints, power cables, coaxial cables, optical fiber cable, LAN

connections, RF link connection).

09 Check all signal bolted connections (specially in all radar switch

boards).

10 Measure transmit frequencies of PSR and MSSR of both

channels.

11 Measure the four pulses of PSR and check the shape of pulses.

12 Measure the peak power of forward and reflected power of PSR

and calculate VSWR.

13 Check the pulse shape and peak power of both channels of sigma

and omega of MSSR.

14 Check the receiver sensitivity of sigma, omega and diff channels.

15 Check the receiver sensitivity of PSR channel (follow procedure)

16 Check the Tx. Spurious radiation signal spectrum bandwidth of

PSR/MSSR.

17 Check the RF frequency and peak power of test transponders.

18 Check all the ventilators /Fan in rack AB to AF (EPS block) AH

& AI racks, ILANs, Frequency converters, Computers rack, RF

Gen and RDEs – include eventual failure fan diagnostic

19 Remove the computer electronics filters, clean up& place it or

replace with new one from store if necessary.


Name:

Designation: Date:


Name:

Designation: Date:




74


Chapter -4


ASMGCS


75


ASMGCS MAINTENANCE SCHEDULE – DAILY

EQUIPMENT : SMR Make/Model : Sensis



Sl.

No

GENERAL

Nominal

value

Date & Time

1. Status of Air-conditioning

2. Eqpt shelter Illumination

3. Room Temperature < 23°c

TX / RX STATUS

4. Tx / Rx Online (1 or 2)

5. Tx / Rx Standby (1 or 2)

6. Antenna Motor # 1

7. Auto C/o (Green) (Tx/Rx-1)

8. Auto C/o (Green) (Tx/Rx-2)

9. Antenna RPM (60-RPM) (60 RPM)

±1rpm

MODULE error

10. Module error ( Any) Ch-01

11. Module error ( Any) Ch-02

RECEIVER

12. Forward Power (Ch-1/2)

>12kw

13. Noise Figure dB <5db

14.

Temperature deg C <50°c

STATUS OF RIU

15 Fault (Red LED lamp )

Modulator

16 Transmission ON Time

Remarks:

Signature of the duty officer with Desgn

Signature of the Unit in Charge with designation


76


A-SMGCS MAINTENANCE SCHEDULE – DAILY (RU & Reftrans)

Date & Time Remarks

Remote Unit

(V-5)

Status

(Grn/

Red)

Temp Status

Grn/

Red)

Temp Status

Grn/

Red)

Temp Status

Grn/

Red)

Temp Status

Grn/

Red)

Temp

1 (R/T)

2 (RO)

3 (RO)

4 (R/T)

5 (R/T)

6 (RO)

7 (RO)

8 (R/T)

9 (RO)

10 (RO)

11 (RO)

12 (R/T)

13 (RO)

14 (R/T)

15 (RO)

16 (R/T)

17 (RO)

18 (RO)

19 (R/T)

20 (R/T)

21 (RO)


77


22 (RO)

23 (RO)

Reftrans -1

Reftrans -2

Reftrans -3

Reftrans -4

Sign &

Desgn

Sign of UIC




78


A-SMGCS MAINTENANCE SCHEDULE –WEEKLY EQUIPMENT : SMR Make/Model : Sensis DATE Sl.N

o

Task to be Performed Nominal

Value

1 GENERAL

1.1 Equipment Cleanliness

1.2 Status of Air-conditioning

1.3 Eqpt shelter Illumination

1.4 Room Temperature

2 TX / RX STATUS

2.1 Tx / Rx Online (1 or 2)

2.2 Tx / Rx Standby (1 or 2)

2.3 Antenna Motor # 1 ON

2.4 Auto C/o (Green) (Tx/Rx-1) Green

2.5 Auto C/o (Green) (Tx/Rx-2) Green

3 BITE Rx/

Tx-1

Rx /

TX-

2

Rx/

Tx-1

Rx

/

TX

-2

Rx/

Tx-1

Rx /

TX-

2

Rx/

Tx-1

Rx /

TX-2

3.1 M / BOARD POWER

3.1.1 -15V -15 +/-

0.75

3.1.2 -5V -5 +/-

0.25

3.1.3 +28V 28 +/- 1

3.1.4 +48V 48 +/-

1V

3.1.5 +5V Encoder 5 +/-

0.25V

3.1.6 +5V Pilot 5 +/-

0.25V

3.1.7 +5V 5 +/-

0.25V

3.1.8 +15V 15 +/-

0.75V

3.1.9 Antenna RPM (60-RPM) 60 +/-

1%

3.1.1

0

Mains on-time (Hrs)

Rx/

Tx-1

Rx /

TX-

2

Rx/

Tx-1

Rx

/

TX

-2

Rx/

Tx-1

Rx /

TX-2

Rx/

Tx-1

Rx /

TX-2

3.2 MODULATOR A B A B A B A B A B A B A B A B

3.2.1 Mod Mean Current (mA) ----

3.2.2 Mod High Voltage (V) Nom

Value

+/- 50 V

3.2.3 Temperature Switch © <30 deg


79


C

3.2.4 Temperature Conv. © <30 deg

C

3.2.5 Filament On-time (Hrs)

3.2.6 Tx On-time (Hrs)

DATE

Rx/

Tx-1

Rx /

TX-

2

Rx/

Tx-1

Rx

/

TX

-2

Rx/

Tx-1

Rx /

TX-2

Rx/

Tx-1

Rx

/TX-2

3.3 RECEIVER Nom.

Val.

A B A B A B A B A B A B A B A B

3.3.1 Forward Power KW >10kw

3.3.2 Noise Figure dB <5db

3.3.3 AFC Error Voltage V <0.04

3.3.4 V-Lo V < +-0.04

3.3.5 Temperature C <50°c

3.4 MOTOR CONTROLLER

3.4.1 Output Frequency

(Hz)

51

±0.1Hz

3.4.2 Current

(Amp)

3.9

±0.1A

3.4.3 Momentum (%) Nom.

Value

0.1%

3.4.4 Power

(KW)

Nom

Value

+/-

0.1kw

3.4.5 Output Voltage (V) Nom

Value

±1v

3.4.6 Runtime

(Hrs)

3.4.7 KWh Counter

(Kwh)

3.4.8 ACS Temperature C

3.5 RSD

3.5.1 PWB Temperature (C) <85°c

3.5.2 +48 Volt ±1v

3.6 TC3

3.6.1 Power On-time (Hrs)

3.7 VP3

3.7.1 FPGA Temperature (C ) <85°c

4.0 MODULE ERROR

4.0.1 TC 3 NIL

4.0.2 MOD-A NIL

4.0.3 RX-A NIL


80




4.0.4 VP3 NIL

MODULE ERROR Nominal

Value

4.0.5 Mother Board Power Supply Green

4.0.6 RSD Green

4.0.7 Motor Controller Green

4.0.8 Com - 0 Green

4.0.9 Com - 1 Green

4.0.1

0

Com – 2 Green

4.0.1

1

Com – 3 Green

4.0.1

2

CAN Slave Green

4.0.1

3

CAN External Green

5.0 WAVE GUIDE

DEHYDRATOR

50.1 Outlet Pressure (in millibar)

5.0.2 Run time (Hrs)

5.0.3 Status of Dehydrater Pale Blue

6.0 STATUS OF RIU T

O

P

BO

TT

OM

T

O

P

BO

TT

OM

T

O

P

BO

TT

OM

T

O

p

BO

TT

OM

6.0.1 Power (Green LED) Green

6.0.2 ARP (Green LED ) Grn

Flashing

6.0.3 ACP (Green LED) Green

6.0.4 Trigger (Green LED) Grn

Flashing

6.0.5 Fault (No lamp ) OFF

Remarks

Signature of the duty officer

Signature of Unit In-charge


81


A-SMGCS MAINTENANCE SCHEDULE –WEEKLY

Remote Unit Type : 5 Make/Model : Sensis Date: Time:

RU’s ( R/T) - TX STATISTICS

AGM/SM Signature of Executive with

Signature of the Unit in-charge Desig



RU

(RO//RT)

RU STATUS STATUS OF POWER SUPPLIES OF RU AS SHOWN ON MDT

5 V

+/-

0.25V

48 V

(A)

+/-

2.5V

48 V

(B)

+/-

2.5V

15 V

+/-

0.75V

12 V

+/-

0.6V

-12 V

+/-

0.6V

3.3 V

+/-

0.16V

-5.2 V

+/-

0.25V

01

02

03

04

05

06

07

08

09

10

11

12

13

RU No. RU Status 3.3 V

+/-

0.16V

5 V

+/-

0.25V

-5 V

+/-

0.25V

8 V

+/-

0.40V

15 V

+/-

0.75V

28 V

+/-

1.40V

34 V

+/-

1.70V

FWD PWR

01

04

05

08

12


82


A-SMGCS MAINTENANCE SCHEDULE – WEEKLY

Remote Unit Type:- 6 Make/Model : Sensis Date: Time:

RU

No.

RU

State

Heart

Beat

(TP)

STATUS OF POWER SUPPLIES OF RU AS SHOWN ON MDT

Power

Usage

31 W

+/-

2W

Comm. Node Sensor Node

I/P

Volt

24 V

+/-

2.4V

I/P

Current

I/P

Volt

24 V

+/-

2.4V

I/P

Current

32

V

+/-

1V

12 V

+/-

0.2V

-8

V

+/-

0.

1V

6.5

V

+/-

0.1V

5 V

+/-

0.1V

3.3

V

+/-

0.1V

1.2

V

+/-

0.05

V

14

(R/T)

15

(RO)

16

(R/T)

17

(RO)

18

(RO)

19

(R/T)

20

(R/T)

21

(RO)

22

(RO)

23

(RO)


83


RU

No.

FPGA

Temp

Control

Board

Temp

Tx

Board

Temp

Cabinet

Temp

AGC Avg. FWD

Power for Tx

only (54 dBm)

VSWR

Ratio

Remarks

14

(R/T)

15

(RO)

16

(R/T)

17

(RO)

18

(RO)

19

(R/T)

20

(R/T)

21

(RO)

22

(RO)

23

(RO)

AGM / SM

Signature of Unit In-charge Signature of Executive

with Designation




84


SMR MONTHLY MAINTENANCE SCHEDULE

Month_______________ Make/Model : Sensis

S. No. Maintenance task Carried out Y/N Remarks

1. Check the colour of the Static

Dehydrator. If it is pale red or

red it must be replaced or dried.

Colour _______

Replaced______

2. Clean all surface with a soft

cloth. Use small amounts of

water with a mild soap. Never

use trichloroethylene or

alcoholic agents.

i) Transceivers

ii) ACU

iii) Dehydrators

iv) RIUs

v) Wave guide

3.

Clean/replace the dust filters in

i) Transceivers

ii) ACU

4. In ACU check heat sink temp.

and clean heat sink.

Temp _______

5. Check status of TC3 battery in

Tranceivers

6. Check Azimuth settings

Signature of officer with Desgn AGM / SM

(Signature of Unit In-charge)




85


MONTHLY MAINTENANCE SCHEDULE ASMGCS PROCESSORS

Month___________ Date: Time: Make/Model : Sensis

1. Cleaning and dusting of all the processors are to be done.

2. Ensure that all connections are in place.

3. Check that unit’s intake and exhaust vents are not blocked with dust or debris.

Name of Processor Cleaning and Dusting carried out Remarks

RDP 1

RDP 2

RDP 3

RDP 4

TP 1

TP 2

MSDP 1

MSDP 2

DP 1

DP 2

DP 3

DP 4

DP 5

MDT

TEST System

MSDP

TP

MDT

DP

Processor MSDP 1 & 2 TP 1 & 2 MDT DP 1,2,3,4,5 RDP 1,2,3,4

Disk space

checking/cleaning

Log file checking

Processes

checking

(AGM/SM)

Signature of Unit In charge Signature of the Executive with Desig. (THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA CAR’S



86


MONTHLY MAINTENANCE SCHEDULE

CONTROLLER WORKING POSITION

Display:

1. As needed, clean the display surface using a soft cloth chamois dampened with a

small amount of de-ionized water or isopropyl alcohol.

2. Dry immediately.

NOTE

Do not touch the display surface with your bare hands.

Do not wipe the display surface with a dry cloth.

DATE &

TIME

CWP CLEANING

DONE Y/N

SIGN WITH

DESGN

REMARKS

Display Trackball :

The trackball may require cleaning if the cursor skips, does not move in certain directions, has

excessive

vibration or feels rough. Frequency of cleaning depends on level of use and environmental

conditions.

1. Remove screws retaining trackball switch cap.

2. Remove trackball switch cap, ball wiper, and ball.

3. Gently rub trackball switch cap, ball wiper, and ball with a clean cloth. Use alcohol on a cloth

or

swab, if necessary.

4. Reassemble in reverse order.

DATE

TIME

TRACKER BALL

MAINTENANCE DONE

Y/N

SIGN WITH DESIGN REMARKS

AGM / SM

Signature of Unit In charge (THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA CAR’S



87


MONTHLY MAINTENANCE SCHEDULE

Eqpt. : Ref-Trans No. : ………. Location: ______________ Date :

Sl.

No.

Task to be performed

1 GENERAL

1.1 Equipment Shelter Cleanliness

1.2 Equipment Shelter Illumination

1.3 Status of Air-conditioning

1.4 Room Temperature

1.5 Equipment Cleanliness

1.6 Status of Heat Exchanger

2 UPS

2.1 UPS status indication

2.2 Input Voltage

2.3 Input Frequency

2.4 Output Voltage

2.5 Output Current

2.6 Output Frequency

2.7 Battery Voltage

2.8 Battery Current

2.9 Backup Test (Normal – OK)

2.10 Batt. Voltage (After S/O)Main)

2.11 Batt. Current (After S/O Main)

Sl.

No.

Task to be Performed

3 DC Voltages

3.1 Module Tray TO

P

BO

TT

OM

TO

P

BO

TT

OM

T

O

P

BO

TT

OM

T

O

P

BO

TT

OM

T

O

P

BO

TT

OM

T

O

P

BOT

TOM

3.2 I/P Current

3.3 I/P Voltage

3.4 +34Vdc (+34Vdc +/-.5Vdc)


88


RF Lightning Arrestor Maintenance

Visually inspect the components of the lightning arrestors for any physical damage.

1. Inspect antenna RF cables of all RUs and Reftrans and check for any loose connection.

2. Check the performance of UPS batteries by switching off the mains power supply and running

the equipment on UPS. Record the back up time of UPS batteries at each site.



3.5 +28Vdc (+28Vdc +/-.5Vdc)

3.6 +15Vdc (+15Vdc +/-.5Vdc)

3.7 +8Vdc (+8Vdc +/-.25Vdc)

3.8 +5Vdc (+5Vdc +/-.25Vdc)

3.9 -5Vdc (-5Vdc +/-.25Vdc)

3.10 RF O/P Power (dBm)

3.11 Error (All)

4 STATUS OF LRUs

4.1 Status of door switch

4.2 Status of Heat Exchanger

4.3 Status of 48V power supply

module

4.4 Status of A1 Module(Top)

4.5 Status of A2 Module (Bottom)

Sl.

No.

Task to be Performed

5 Remarks (if any)

6 Signature

with Design

Officer

Unit in

Charge


89


A-SMGCS MAINTENANCE SCHEDULE - MONTHLY

Equipment: RU Type -5 Location :____________________

RU No.: Year:...................................

Sl.

No.

Task to be

Performed

Nominal

Value/Status

1 GENERAL


Cleanliness

Cleaned


Illumination

OK

1.3 Status of Air-

conditioning

OK

1.4 Room Temperature less than

24OC

1.5 Equipment

Cleanliness

OK

1.6 Status of Heat

Exchanger

OK

2 UPS

2.1 UPS status indication Green

2.2 Input Voltage 215 - 240V

2.3 Input Frequency 48 – 50 Hz

2.4 Output Voltage 220 - 230 V

2.5 Output Current

2.6 Output Frequency 48 – 50 Hz

2.7 Battery Voltage (

Before S/W off)

2.8 Battery Current (

Before S/w off

2.9 Backup Test Normal-OK

2.10 Batt. Voltage (After

S/w-off Main)

2.11 Batt. Current ( after

S/w off-Main)

3 AC/DC Power Converter (PMD)

3.1 Power indication Green

3.2 V1 LED Green


90


3.3 V2 LED Green

3.4 Input Power (TP1) +48 V ±2.4V

3.5 +48 Vdc (TP2) 48V ±2.4V

3.6 +48 Vdc (TP3) 48V ± 2.4V

4 DC Voltages (Multi Output Power Supply)

4.1 Power in LED Green

4.2 V1 (+5Vdc) LED Green



4.5 V4(-5.2Vdc) LED Green

4.6 V5 (-12Vdc) LED Green

4.7 +48Vdc (TP1) 48V ± 2.4V

4.8 + 5Vdc (TP2) 5V +/- 0.25V

4.9 +12 Vdc (TP3) 12V +/- 0.6V

4.10 +15 Vdc (TP4) 15V +/-

0.75V

4.11 -5.2 Vdc (TP5) -5.2V +/-

0.25V

4.12 -12 Vdc (TP6) -12V +/-

0.6V

4.13 3.3 Vdc

3.3 +/-

0.15V

5 Status of LRUs (THROUGH PDT)

5.1 Door Switch Closed

5.2 Blower Assy. Green

5.3 Input / Output Module Green

5.4 Processor Module Green

5.5 Receiver Module Green

5.6 EMSD Module Green

5.7 ADT Green

5.8 Transmitter Module

(For R/T only)

Green

5.9 LAN Status OK


91


RF Lightning Arrestor Maintenance

Visually inspect the components of the lightning arrestors for any physical damage.

1. Inspect antenna RF cables of all RUs and Reftrans and check for any loose connection.

2. Check the performance of UPS batteries by switching off the mains power supply and running the

equipment on UPS. Record the back up time of UPS batteries at each site.

(Sign of Duty Officer) (Sign of Unit Incharge)



5.9.1 Switch Status OK

5.9.2 Converter status OK

5.9.3 OFC Link OK

6.0 Check target

primitives

OK

6.1 Check interrogations

at R/T only

OK

7. RF Cable

Connection

OK

8 Date & Time

9 Signature of the

Executive with Desig

10 Signature of the Unit

in Charge with Desig


92


A-SMGCS MAINTENANCE SCHEDULE – MONTHLY

Eqpt. : RU Type 6 Location :____________________

RU Number : Year: ...........................

Sl.

No.

Task to be Performed Nominal Status

1 GENERAL


Cleanliness

OK


Illumination

OK

1.3 Status of Air-conditioning OK

1.4 Room Temperature less than 24oC

1.5 Equipment Cleanliness OK

2 UPS

2.1 UPS status indication OK

2.2 Input Voltage 220-240volts

2.3 Input Frequency 48.5 – 51.5 Hz

2.4 Output Voltage 220-230 volts)

2.5 Output Current

2.6 Output Frequency(50 hz ) 48.5 – 51.5 Hz

2.7 Battery Voltage ( Before S/W off)

2.8 Battery Current ( Before S/w off)

2.9 Backup Test (Normal-OK)

2.10 Batt. Voltage After S/w-off Main

2.11 Batt. Current (After S/w off-Main)

Sl.

No. Task to be Performed Nominal Status

3 Module Status

(Through eLCMS)

3.1 Sensor node Green


93


3.2 Communication node Green

3.3 Power Node Green

3.4 RF Antenna Green

3.5 GPS Status Not installed

4 Power Node

4.1 output power LED Green

4.2 DC Voltage 24V +/- 10%

4.3 Fan Blower OK

5 Sensor Node 5.1 Status LED Solid Green: Online

5.2 TP Comms LED Solid Green : Link

5.3

RF Receive LED Yellow : Mode

A/C (Flash per

Msg)

Green : Mode S

(Flash per msg)

5.4 RF Transmit (For

R/T only)

Green

5.5 GPS 1pps

Solid yellow: No

receiver

Sl.

No.

Task to be performed Nominal Value

6 Statistics (Through eLCMS)

6.1 Downlink statistics O.K.

6.2 Data to TP O.K.

6.3 Uplink Statistics

(For R/T Only)

O.K.

6.4 Data from TP O.K.

6.5 Hardware Statistics

6.5.1 Sensor node input

voltage

24V +/-10%

6.5.2 FPGA Temp < 52 OC


94


Access the eLCMS

1. Connect the Ethernet cable to LMI port on the Sensor Node and the Ethernet

port on the Laptop.

2. Verify DHCP setting on the Laptop

a) In the Internet Portocol (TCP/IP) properties windows, Select obtain an IP

address automatically.

3. Open Internet Explorer. In the address box enter the following URL address

http://192.168.145.126/html/index.html

4. Opening screen of eLCMS application appears.

RF Lightning Arrestor Maintenance: Visually inspect the components of the lightning arrestors for any physical damage.

1. Inspect antenna RF cables of all RUs and Reftrans and check for any loose

connection.

2. Check the performance of UPS batteries by switching off the mains power

supply and running the equipment on UPS. Record the back up time of UPS

batteries at each site.

(Sign of Duty Officer) (Sign of Unit Incharge)



6.5.3 RF Tx Board Temp

7 LAN Status

7.1 Switch Status O.K.

7.2 Converter status O.K.

7.3 OFC Link O.K.

8 Date & Time

9 Signature of the

Executive with

Designation:

10 Signature of the Unit in-

Charge with Desig

http://192.168.145.126/html/index.html


95


SMR QUARTERLY MAINTENANCE SCHEDULE

Period________________________

S.

No.

Maintenance task Carried out (Y/N) &

Status

Remarks

1. Perform visual inspection of the

individual installations, and repair any

observed damages.

2. Check the wave guide for any leakages.

3. Check in the ACU that the fan is turning

during antenna rotation, and that the air

passes smoothly through the filters.

Signature of officer with Designation AGM / SM

(Signature of Unit In charge)

Note: On some models of the ACU, the fan in the ACU is turning only when the antenna is on

(rotating).




96


SMR SIX MONTHLY MAINTENANCE SCHEDULE

Period: ________________________

1. Transceiver : Replace the magnetron(s) every 6 months or at the end of life.

Date Replaced (Y/N) Remarks

2.Terma Antenna Assembly:

Signature of officer with Design AGM / SM


Note : The gearbox oil needs to be changed every 4 years.



Maintenance Task Carried out

(Y/N)

Remarks

Check functions of interlock

Check that the unit is grounded (lightning

protection)

Wipe antenna front face with a soft cloth; wax

antenna face if necessary.

Check that there is no paint, dirt, caked salt,

or other unknown substance on the surface

Check that the radome window is not

damaged

Inspect the pedestal for damage

Check the gearbox oil level Normal/ below normal

Change the oil in the gearbox if level is low


97


SMR YEARLY MAINTENANCE SCHEDULE

Year:_____________________

Terma Dehydrator

S No. Parameter Value Remarks

1. Check nominal working pressure

on the manometer.

2. Check that the moisture indicator

is blue.

3. Check the air outlet quantity.

4. Check the purge capacity

5. Check the low pressure alarm

contact by creating a leakage.

(For example, open one of the

remaining pin valves or

disconnect tubing.)

6. Check the outlet dew point of the

dryer.

Perform these checks either just after the start of the regeneration phase or during the

cooling phase to prevent condensate entering the flowmeter.

WARNING:

One of the purge outlets is hot during and shortly after the heating period in regeneration phase.

Terma ACU:

Check heatsink temperature and clean heatsink. Interval depends on dustiness of environment.

3 years Replace internal enclosure fan.

5 years Replace main cooling fan.

10 years Change capacitors

Replace battery in the control panel.

Signature of officer with Design AGM / SM





98


PREVENTIVE MAINTENANCE SCHEDULE – DAILY

EQUIPMENT : ASMGCS MAKE : HITT CPS - SITE

Sl No

Activity and Procedure Observation/ Results

REMARKS

1 Status of the system OK/WARNING/

DEGRADED/ERROR

1. MSS

2. SYSTEM LOAD

3. RECEVING SUB SYSTEM

4. CENTRAL PROCESSING SYSTEM

5. COMMUNICATION SUB SYSTEM

6. TRANSMITTING SUB SYSTEM

7. TIME SUB SYSTEM

8. POWER SUB SYSTEM

9. OPTICAL LINE

2 CPS rack cleanliness 3 RMTR operation

S00 (MODE-S 8008C0, SSR CODE –????, ALT -GND)

S01 (MODE-S 8008C1, SSR CODE –????, ALT -GND) 4 OFC

Status A & B

S00 S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11

5 UPS status

MAIN

STDBY

% LOAD (Less than 70%)



Name, Designation and signature of Duty Officer


99


PREVENTIVE MAINTENANCE SCHEDULE - WEEKLY


UPS- 1 batteries check (ODD weeks) Date:

Total DC voltage Before load test After load test

Individual battery voltage

Before load test After load test 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

UPS- 1 batteries check (EVEN weeks) Date:

Total DC voltage

Before load test After load test


Before load test After load test

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Remarks Remarks

Name, Designation and signature Name, Designation and signature

of Duty Officer of Duty Officer




100


PREVENTIVE MAINTENANCE SCHEDULE – SIX MONTHLY


2 Check the status of communication among the system parts of MSS at Management System.

(i) LAN card diagnostics:

(ii) TCP/IP communication diagnostics

Signature of DGM Name, Designation and signature of Duty Officer

Asst GM/SM



S.No. Activity

1 Check the logs with the long term statistic information about the system alarms at

Management System log archives.


101


PREVENTIVE MAINTENANCE SCHEDULE – YEARLY

EQUIPMENT : ASMGCS MAKE : HITT CPS – SITE

Sl No Activity and Procedure Observation/ Results

Remarks

1 Inspection of the fans at the MSS computers:

TP1 TP2 MS1 MS2

2 Perform the backup of the system partition of all MSS

computers TP1

TP2

MS1

MS2

3 Perform the backup of the adaptation data of all MSS

computers TP1

TP2

MS1

MS2

Signature of DGM Name, Designation and signature of Duty Officer Asst GM/SM




102


PREVENTIVE MAINTENANCE SCHEDULE – DAILY

EQUIPMENT : ASMGCS MAKE : HITT CMS – SITE

Sl No Activity OK/Degraded /Warning/Error

Remarks

Check system status using CMS CMSP01

CMSP02

CTP01

CTP02

DP01

DP02

DP03

IP01

IP02

RDP01

RDP02

RDP03

RDP04

RRP01

RRP02





103


PREVENTIVE MAINTENANCE SCHEDULE – WEELY


Sl No 1

2

3

4

5

Activity Observation/

Results

Remarks

1 Replace ARCHIT tape Replaced/ not replaced

2

Check report files

3 Check external interface with Approach radar

4

Check Flight plan interface

5 Check time synchronization





104




S. No Activity Observation/ Results Remarks

M1 Check (and adapt) Video Alignment of the SMR video

M2 Check Linux processes

M3 Check computer load

M4 Check memory usage

M5 Check disk space


105


M6 Check redundancy

M7 Check backup of changes

M8 Check archit tape

M9 Check on any core files





106


PREVENTIVE MAINTENANCE SCHEDULE - SIX MONTHLY

EQUIPMENT : ASMGCS MAKE : HITT MLATs

Sl

No

Activity and Procedure Observation/

Results

Remarks

1) Remove foreign elements that could deteriorate the efficiency of the electronic modules cooling

ability, etc.

S00

S01

S02

S03

S04

S05

S06

S07

S08

S09

S10

S11

S12

Remarks





107




2 Visual check of the antenna and the antenna feeder:

S00

S01

S02

S03

S04

S05

S06

S07

S08

S09

S10

S11

S12

Remarks





108




3 Visual Check of the cabinet with electronics:

S00

S01

S02

S03

S04

S05

S06

S07

S08

S09

S10

S11

S12

Remarks





109




4 Detection of faults and anomalies:

S00

S01

S02

S03

S04

S05

S06

S07

S08

S09

S10

S11

S12

Remarks

Signature of DGM

Name, Designation and signature of Duty Officer Asst GM/SM




110




5. MLAT mast inspection:

S01

Remarks





111


PREVENTIVE MAINTENANCE SCHEDULE - DAILY

EQUIPMENT : ASMGCS MAKE : HITT SMR – SITE

Sl No Activity Observation/ Results

Remarks

1 Status of Air-conditioning in UPS HUT

2 Equipment room cleanliness UPS -HUT

3 Temperature in UPS HUT

4 Status of Air-conditioning in Equipment HUT

5 Equipment room cleanliness Equipment HUT

6 Temperature in Equipment HUT

7 Check BITE measurement and Modules errors

8 UPS status UPS MAIN

UPS STANDBY

% LOAD (Less than 70%)





112


PREVENTIVE MAINTENANCE SCHEDULE - WEEKLY



Total DC voltage

Before load test Before load test


Before load test Before load test 1

2 3

4 5

6 7

8 9

10

2 3 4 5 6 7 8 9 10

2 3

4

5

6

7

8

9

10

Active RXTX change over

Currently

active RXTX 1

/ RXTX 2

Changeover to

RXTX 1 / RXTX

2

Air conditioner change over

A/C change over in UPS HUT

A/C change over in SMR HUT

REMARKS :


Total DC voltage




1

2 3 4

5 6 7

8 9

10

2 3 4 5 6 7 8 9 10

2 3

4

5

6

7

8 9

10

Active RXTX change over

Currently

active RXTX 1

/ RXTX 2

Changeover to

RXTX 1 / RXTX

2

Air conditioner change over

A/C change over in UPS HUT

A/C change over in SMR HUT

REMARKS :

Name, Designation & signature

Of Duty Officer




113




Azimuth check and alignment





114


PREVENTIVE MAINTENANCE SCHEDULE - QUARTERLY


1

Check Static Dehydrator

2 Clean/replace filters

3

Clean all surfaces

Remarks

Name, Designation and signature Name, Designation and signature of

of Duty Officer of Duty Officer




115


PREVENTIVE MAINTENANCE SCHEDULE - SIX-MONTHLY


Magnetron replacement check

1. hours of transmisS10n of magnetron :

2. Age of magnetron :

3. Forward Power :

4. Date of replacement of magnetron :

Remarks




Airports Authority of India CNS Manual Vol. VII Part 3

116


SURFACE MOVEMENT RADAR BITE MEASUREMENT REGISTER(SMR1)

MEA

SUR

MEN

T TYPE

A.MOTHER BOARD AND POWER SUPPLY

DATES

-15V

M1

M2

-5V M1

M2

+28V M1

M2

+48 M1

M2

+5V ENCODER

M1 M2

+5V PILO

T

M1

M2

+5V M1

M2

+15V M1

M2 ANTENN

A RPM

M1

M2

MAINS ON TIME M1

M2

B. MODULATOR

MAG PEAK CURRENT

M1

M2

MOD MEAN CURRENT

M1

M2

MOD HIGH VOLTAGE

M1 M2

TEMPERATURE SWITCH

M1 M2

TEMPERATURE CONV

M1

M2

FILAMENT ON TIME

M1

M2

TX ON TIME M1 M2

SIGNATURE


117


MEA

SUR

MEN

TS

TYPE C.RECEIVER

DATES

FORWARD POWER M1

M2

NOISE FIGURE M1

M2

AFC ERROR VOLTAGE M1

M2

V-Lo M1

M2

TEMPERATURE M1

M2

D.VP3 FPGA TEMPERATURE M1

M2

E.TC3 POWER ON TIME M1

M2

F.RSD PWB TEMPERATURE M1

M2

+48V M1

M2

ACTIVE RX/TX

G.MOTOR CONTROLLER OUTPUT FREQUENCY

CURRENT MOMENTUM

POWER OUTPUT VOLTAGE

RUNTIME KWH COUNTER

ACS TEMPERATURE SIGNATURE

(THIS MAINTENANCE SCHEDULE IS BASED ON RECOMMENDATIONS OF ICAO ANNEX 10, DGCA CAR’S AND

MANUFACTURER’S TECHNICAL MANUAL.)


118


Parameters UPS1 UPS2

O/P Voltage

O/P Frequency

Runtime

Battery Voltage

Power (in %)

PREVENTIVE MAINTENANCE SCHEDULE – DAILY ASMGCS/SMR-1

Location: ATC TOWER Month: Year: Make: SELEX

FREQUENCY:

Operational status: Mode (TxRx A/B/A+B)

Operational Status: Radiation ( on/off )

Role of Extractor Operative TxRx Interface A/B

Operative Encoder

A/B A B

SMR STATUS: Status Ok/Not Ok Type of fail

Message

Action Taken Remarks

Link Status

Extr A Status

Extr B Status

TxRx A Status

TxRx B Status

Antenna Status

UPS Status

TX RX Maintenance : UPS Status:

Parameters TXRX A TXRX B

TXRX Temp.

MG Peak Current Level

Main Bang Level

Rx Noise Level

Forward Power Level

Task Equipment Room

UPS Room

Temperature

Cleanliness

Signature of Unit in Charge Signature of Duty Officer

Name & Designation: Name & Designation:




119


PREVENTIVE MAINTENANCE SCHEDULE - MONTHLY ASMGCS/SURFACE MOVEMENT RADAR-1

Location: ATC TOWER

Month: Year: FREQUENCY: Make: SELEX

SL.NO. UNIT TASK WHETHER

CARRIED OUT(YES/NO)

REMARKS

1. RACK ASSEMBLY Rack Assembly external cleaning

2. Extractors Extractors Master/Slave inversion

3. Extractors Extractor A & B external Air filter Cleaning

4. UPS UPS external Cleaning

5. UPS Put the equipment on UPS battery by S/w off the supply to UPS for one hour.

6. EQUIPMENT Check Earth to Neutral Voltage for the rack assembly.


Name: Name:

Designation: Designation:




120


PREVENTIVE MAINTENANCE SCHEDULE – SIX MONTHLY SURFACE MOVEMENT RADAR-1

Location: ATC TOWER Month: Year: FREQUENCY: Make: SELEX


CARRIED

OUT(YES/NO)

REMARKS

1. RACK ASSEMBLY Rack Assembly external frame condition check

2. ANTENNA GROUP Antenna radiating surface cleaning

Check the absence of water inside the antenna group

3. TRANSCEIVER A Fans filter cleaning

4. TRANSCEIVER B Fans filter cleaning

5. EXTRACTOR A and B Air filter Cleaning

6. ANTENNA CONTROL

UNIT Internal inspection and general cleaning

7. DUAL TX-RX JUNCTION UNIT

Internal inspection and general Cleaning

8. Earthing Earth resistance at antenna site

9. Lightning arrester Physical verification


Name: Name:





121


PREVENTIVE MAINTENANCE SCHEDULE - YEARLY ASMGCS/SURFACE MOVEMENT RADAR-1

Location: ATC TOWER Month: Year: FREQUENCY: Make: SELEX

SL.NO. UNIT TASK WHETHER CARRIED OUT(YES/NO)

REMARKS

1. Rack Assembly Rack Assembly cables and connectors condition check

2. Antenna Group Ground connection check

Motor belt tightening check

Fastening screws cleaning

3. Transceiver A and B

Internal inspection and general cleaning

4. System Cables and connectors check

Flexible waveguide check


Name: Name:





122


Parameters UPS1 UPS2

O/P Voltage

O/P Frequency

Runtime

Battery Voltage

Power (in %)

DAILY PREVENTIVE MAINTENANCE SURFACE MOVEMENT RADAR-2

Location FREQUENCY Date ARFF BUILDING 9490/9375 MHz

Operational status: Mode (TxRx A/B/A+B)

Operational Status-- Radiation ( on/off )

Role of Extractor Operative TxRx Interface A/B

Opeartive Encoder

A/B A B

SMR STATUS: Status Ok/Not Ok Type of fail

Message

Action Taken Remarks

Link Status

Extr A Status

Extr B Status

TxRx A Status

TxRx B Status

Antenna Status

UPS Status

TX Rx Maintenance : UPS Status:

Parameters TXRX A TXRX B

TXRX Temp.

MG Peak Current Level

Main Bang Level

Rx Noise Level

Forward Power Level

Task Equipment Room

UPS Room

Temperature

Cleanliness






123


MONTHLY PREVENTIVE MAINTENANCE SURFACE MOVEMENT RADAR-2

Location: ARFF BUILDING Month: Year: FREQUENCY: 9490/9375 MHz

DATE: Make: SELEX


REMARKS

1. RACK ASSEMBLY Rack Assembly external cleaning

2. Extractors Extractors Master/Slave inversion

3. Extractors Extractor A & B external Air filter Cleaning

4. UPS UPS external Cleaning

5. UPS Put the equipment on UPS battery by S/w off the supply to UPS for one hour.

6. EQUIPMENT Earth to Neutral Voltage for the rack assembly.


Name: Name:





124


SIX MONTHLY PREVENTIVE MAINTENANCE

SURFACE MOVEMENT RADAR-2

Location: ARFF BUILDING Month: Year: FREQUENCY:

DATE: Make: SELEX


CARRIED

OUT(YES/NO)

REMARKS

1. RACK ASSEMBLY

Rack Assembly external frame condition check

2. ANTENNA GROUP

Antenna radiating surface cleaning

Check the absence of water inside the antenna group

3. TRANSCEIVER A

Fans filter cleaning

4. TRANSCEIVER B

Fans filter cleaning

5. EXTRACTOR A

and B

Air filter Cleaning

6. ANTENNA CONTROL UNIT


7. DUAL TX-RX

JUNCTION

UNIT

Internal inspection and general Cleaning

8. Earthing Earth resistance at antenna site

9. Lightning arrester

Physical verification


Name: Name:





125


PREVENTIVE MAINTENANCE SCHEDULE - YEARLY SURFACE MOVEMENT RADAR-2

Location: ARFF BUILDING Month: Year: FREQUENCY:

DATE: Make: SELEX


REMARKS

1. Rack Assembly Rack Assembly cables and connectors condition check

2. Antenna Group Ground connection check

Motor belt tightening check

Fastening screws cleaning

3. Transceiver A and B


4. System Cables and connectors check

Flexible waveguide check


Name: Name:





126


Device Status

on CMS

Indication

on LMDT

Comm. CPF Comm. MTP

MLAT Receiver 1 CPF A CPF B

MLAT Receiver 2 MTP A MTP B

MLAT Receiver 3 Mode-S-INT

MLAT Receiver 4

MLAT Receiver 5

MLAT Transmitter

MLAT SGU 1

MLAT SGU 2

DAILY PREVENTIVE MAINTENANCE MLAT STATUS ON LMDT

OPERATIONAL STATUS

DATE: Indication Status of CPF:

Operative Status of CPF:

CPF SEC. Extractor A/B

MTP ( RHP) A/B

Selection Whether Plots/Tracks are

available on Main screen

Whether Plots/Tracks are

available on TRP screen

With Mode-S selection

With ADS-B selection






127


PREVENTIVE MAINTENANCE SCHEDULE - MONTHLY MLAT-SENSORS

FOR THE MONTH OF YEAR

DATE:

UNIT TASK WHETHER CARRIED

OUT(YES/NO)

REMARKS

MLAT-SENSOR-1 (ARFF BUILDING)

1. EXTERNAL CLEANING 2. EXTERNAL CABLES CHECKING

MLAT-SENSOR-2 (ATC TOWER)


MLAT-SENSOR-3 (RADAR)


MLAT-SENSOR-4 (LOC 09)


MLAT-SENSOR-5 (LOC 27)


MEDIA CONVERTER 4 & 5

(LOC 09 & LOC 27)

1. EXTERNAL CLEANING






128


PREVENTIVE MAINTENANCE SCHEDULE - WEEKLY MLAT-SENSORS

DATE:

MODULES: DIGITAL UNIT SYNTHESIZ

ER MODUATO

R POWER

SUPPLY 1 POWER

SUPPLY 2

MLAT UNIT LA

N T

X R

X AL

R SYNTH

_LOCK LOCK T

X LOC

K VC

C LIN

E VC

C LIN

E REMA

RKS

SENSOR 1(ARFF)

SENSOR 2

(TOWER)

SENSOR 3

(RADAR)

SENSOR 4 (LOC

27)

SENSOR 5 (LOC

09)

UNIT LED

INDICATION

REMARKS

100 Base Tx

Side

100 Base

Fx side PW R

M/ L ON

FDX LNK ACT LNK ACT

MEDIA-CONVERTER

1 (LOC 27)

MEDIA-CONVERTER

2 (LOC 09)






129


Chapter -5


ADS-B


130


Preventive Maintenance Schedule (ADS-B) - Daily

Make : COMSOFT Date : Parameters Normal Indication Observed Indication (Color/Status)

/Remarks

I. GENERAL

a) Cleanliness O.K.

b) Room Temperature < 25 Deg. Celsius

c) Humidity 20% to 80%

d) Room lighting O.K.

e) Air conditioner Status All AC working normal

II. ESMS APPLICATION

Analyze the ESMS Alarm panel Messages, Events Log & take corrective action

No Active Alarms

i) ADS-B Equipment Status

Sensor-A C-State Black Bk Bl R

E-State Green G W R Y O Bl

Sensor-B C-State Black Bk Bl R


Site Monitor C-State Black Bk Bl R


ii) Center Status

QIC E-State Green G W R Y O Bl

Go/No-Go Status Go

Server H/W E-State Green G W R Y O Bl

Disk usage < 80%

ESMS S/W E-State Green G W R Y O Bl

III. QIC APPLICATION

Site Monitor Transmission in DF-18 OK

IV. QCMS APPLICATION

i) Sensor-A Monitoring

Sensor data updating Normal

Temperature -20º C to 70º C

CPU Load 0% to 70%

GPS Connected Yes

ii) Sensor-B Monitoring

Sensor data updating Normal

Temperature -20º C to 70º C

CPU Load 0% to 70%

GPS Connected Yes

V. QCMS PC Time Check

Time synchronization with GPS Time OK

VI. CONNECTOR-BOX

Status of +24V Power Supply-1 DC OK LED- Green

Status of +24V Power Supply-2 DC OK LED- Green

Switch-1 Status Power LED-Green & Other connected Links blinking


131


Switch-2 Status Power LED-Green & Other connected Links blinking

VII. STATUS OF MAIN UPS -1KVA

LED-Status Mains/ Inverter Green

I/P Voltage 115-300 V

I/P Frequency 46-54 Hz

O/P Voltage 215.6 V to 224.4 V (220 ± 2%)

O/P Frequency 46-54 Hz

Load 0% to 80%

VIII. STATUS OF STANDBY UPS -1KVA

LED-Status Mains/ Inverter Green

I/P Voltage 115-300 V

I/P Frequency 46-54 Hz

O/P Voltage 215.6 V to 224.4 V (220 ± 2%)

O/P Frequency 46-54 Hz

Load 0% to 80%

IX. STATIC SWITCH INDICATION

IN-1 LED Red

IN-2 LED Red

OUT LED Green

Remarks (Any Deviations Observed/ Action Taken):

Sign. of Duty Officer Sign. of Unit-In-Charge Name:- ________________________ Name:- ________________________ Desgn.:- _______________________ Desgn.:- _______________________



1. Legends Colors: G-Green; Y- Yellow; O- Orange; R- Red; Bk- Black; W- White; Bl-Blue 2. E-State (Equipment) Colors: Green-Normal; White –Switch Off; Yellow-Minor Fault; Orange-Major Fault; Red- Critical Fault; Blue-Initial State 3. C-State (Control & Monitoring State) Colors: Black- Normal acquisition; Blue- Unknown Status; Red- User Set Status


132


Preventive Maintenance Schedule (ADS-B) – Monthly

Make : Comsoft Date :

Remarks if any

Sign. of Duty Officer Sign. of Unit-In-Charge Name:- ________________________ Name:- ________________________ Desgn.:- _______________________ Desgn.:- _______________________



SL NO STATUS / PARAMETERS NORMAL STATUS OBSERVED STATUS

Sensor A Sensor B

1. Sensor Configuration

1.a GPS Latitude deg

1.b GPS Longitude deg

1.c GPS Geodial Height meters

2. Power on Self Test (POST) Results

2.a General Result Passed

2.b GPS Passed

2.c Temp Sensing Passed

2.d Voltage Sensing Passed

2.e FPGA Passed

2.f Receiver Passed

3. System Status Information (Maintenance Mode)

3.a CPU Load 0%-75%

3.b GPS Status Yes

3.c GPS Synchronized yes

3.1 Voltages & Temperature

3.1.a Intermediate volt (+ ve) 9.5 v to 13.5 v

3.1.b Intermediate volt (- ve) -13.5 v to -9.5 v

3.1.c GPS Voltage 9.5 v to 13.5 v

3.1.d FPGA Core Voltage 1.0 v to 1.4 v

3.1.e FPGA Auxiliary Voltage 2.3 v to 2.7 v

3.1.f DSP Board Voltage 3.1 v to 3.5 v

3.1.g DSP Board Temperature -20 to 70 deg C

3.2 Site Monitor Statistics

3.2.a Signal Strength of last RF Site Mon Msg

0-255

3.3 End to End Test Results

3.3.a End to End Test Passed

3.3.b Rx Sensitivity Passed

3.3.c Test Transmission Loss Passed

3.3.d Decoder Test Passed

3.4 Device Status

3.4.a Gnd Station Status Go

3.4.b Overall build-in-test result

No Error Pending

3.4.c UTC Synchronization State

UTC Coupled


133


UPS Monthly Maintenance Schedule (ADS-B)

Make : Eaton, 1 KVA Date :

Battery No. UPS-1 UPS-2 Mains OFF After 30

Minutes Mains OFF After 30

Minutes

1.

2.

3.

OVERALL VOLTAGE

CHARGING /DISCHARGING CURRENT

REMARKS

Sign of Duty Official Sign of Unit In-charge Name & Design: Name & Design:




134


Preventive Maintenance Schedule (ADS-B)- Quarterly

Make : Comsoft Date :

S/N Parameters Normal Status Observation

1 Preventive Maintenance of ADS-B Sensors and Site Monitor

1.1 ADS-B Sensor-1

1.1.a Physical check of Antenna, Associated cables and connectors

OK

1.1.b Physical check of GPS Antenna, Associated cables and connectors

OK

1.1.c Physical check of LAN Cables OK

1.1.d Physical check of Power Cables OK

1.2 ADS-B Sensor-2


OK


OK



1.3 Site Monitor


OK


OK



1.3.e Power ON LED Green

1.3.f Link LED Orange

1.3.g Transmission LED Blue-Flashing

1.4 Connector BOX

1.4.a Physical check of RDCU cables and connectors OK

1.4.b Physical check of power cables and connectors OK

2 Preventive Maintenance of QCMS PC along with keyboard and mice as required is carried out.


135


3 Condition of Earth pit :

Particulars Normal Status Observation

3.1 Earth pit (For ADS-B Sensors and Site Monitor)

i) Physical condition of Earth pit, electrical connection & copper strips.

ii) Area surrounding the earth pits clear of dense grass, shrubs & other obstructions.

3.2

Earth resistance value Earth resistance value measured on DD/MM/YY.

< 2 Ω

4 Earth-Neutral Voltage (UPS)

Sign. of Manager Sign. of Unit-In-Charge Name:- ________________________ Name:- _______________________ Desgn.:- _______________________ Desgn.:- _______________________



authority of india cns manual vol. vii part 3 2 aai/ans/cns/om/2015/v2.0-cnsm-vol-7-part-3 version...

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