master blaster o&m - paragon controls · aps-1000 master blaster high pressure purge system...

APS-1000 Master Blaster High Pressure Purge System Operation & Maintenance Manual Engineered for accuracy, applicability, durability and simplicity in HVAC air systems and industrial process control loops

APS-1000 Master Blaster Operation & Maintenance Manual

i Paragon Controls Incorporated, Rev1, 5/5/09 Phone 707 / 579-1424, Fax 707 / 579-8480

TABLE OF CONTENTS TABLE OF CONTENTS............................................................................................................................. i 1. INTRODUCTION .............................................................................................................................. 1

1.1. BASIC OPERATION ................................................................................................................. 1 1.2. SAFETY ..................................................................................................................................... 1

1.2.1. Electrical Connections ........................................................................................................ 1 2. INSTALLATION ............................................................................................................................... 2

2.1. MECHANICAL INSTALLATION............................................................................................ 2 2.2. ELECTRICAL & PNEUMATIC INSTALLATION.................................................................. 3

3. MICROTRANS AIRFLOW TRANSMITTER .................................................................................. 4 3.1. KEY FUNCTIONS..................................................................................................................... 4 3.2. INPUT/OUTPUT SET-UP ......................................................................................................... 5

3.2.1. Process output ..................................................................................................................... 5 3.2.2. Temperature Output (Option) ............................................................................................. 5 3.2.3. Temperature Input (Option)................................................................................................ 5

3.3. COMMON CONFIGURATION CHANGES ............................................................................ 6 3.3.1. Area Factor.......................................................................................................................... 6 3.3.2. Operating Range ................................................................................................................. 7

4. PLC SETUP........................................................................................................................................ 8 4.1. PLC TIMING SEQUENCE........................................................................................................ 8 4.2. PLC CLOCK SETUP ................................................................................................................. 8 4.3. BLOCK TIMER PROGRAMMING .......................................................................................... 9


1 Paragon Controls Incorporated, Rev.1,5/5/09 Phone 707 / 579-1424, Fax 707 / 579-8480

1. INTRODUCTION

1.1. BASIC OPERATION When the purge cycle is activated either by manual activation or by interval timer, the transmitter sensing lines are disconnected from the flow transmitter and the flow element sensing lines are purged with 60-80 PSIG air for a 1 minute duration. This periodic purging helps in clearing the sensing orifices of the airflow element of any long or short term build up of airborne particulate.

A Programmable Logic Controller (PLC) will operate three sets of valves in sequence. Upon activation of the purge sequence, solenoid V-4 is first energized allowing pneumatic pilot air pressure to pass to V-1 and V-2 which shift pneumatically to isolating the transmitter by blocking off both the high and low ports of the transmitter. After the transmitter is completely isolated (Factory set @ 5 seconds) then V-3 the high capacity solenoid purge valve is then energized. This will connect the flow element sensing lines to the (N.C.) purge pressure and allow purging to resume and continue for the preprogrammed duration (Factory set to 1 minute and field adjustable).

When the purge period ends, the PLC will operate the valves in reverse order, de-energizing the V-3 (purge valve) first and relieving any trapped pressure in the sensing lines and in the lines between V-1/V-2 and V-3 that can potentially over-pressurize the transmitter. After a programmed time duration (Factory set to 5 seconds) V-4 solenoid valve will then de-energize causing V-1& V-2 valves to shift back to their normal position reconnecting the transmitter sensing lines to the airflow element.

At the start of the purge cycle the PLC shall issue a signal so that the transmitter output will be locked and held at the last sensed value. The transmitter lock and hold is timed over the entire duration of the purge cycle and will time out approximately 5 seconds after the isolation valves V-1& V-2 have de-energized. This will prevent any disruption of the control process and the system will then return to it's normal operation, until the next purge event is initiated.

The MicroTrans Signal Processor employs current state-of-the-art digital microprocessor technology to produce highly stable and accurate differential pressure and air flow measurements. The MicroTrans is factory configured and calibrated to exact specification determined at time of order. Optional features include AutoZeroing; High, Low, and Remote Alarms; and Temperature Compensation. Simple field configuration menus allow the operator to make changes to the factory set configuration.

.

1.2. SAFETY

1.2.1. Electrical Connections Before any electrical connections are made to the electrical panel, ensure the FUSE SWITCHES are in the OFF position.



2. INSTALLATION

2.1. MECHANICAL INSTALLATION Refer to Figure 2.0 for enclosure dimensions.

24.0"

42 SHUT-OFF

PLCCONTROL

TB2

3

4

1

VALVES

&

PURGE

PURGE TIMING

MANUALPURGE

T1

(1A)

1.6 AMP FUSE

TRANSFORMER

2

PURGEVALVES

&

3

100,000

MicroTransSignal Processor

PCI

PROCESS INDICATION

OFF

1

PURGEAUTO

*

PARAGON

INCORPORATEDCONTROLS

CFM

F1

F2

MAIN AIR

3EARTH GROUND

Output

PURGE CYCLE

- 7

+

5

6

4

115VAC (L)

115VAC (N)

12

TB1

24.0"

DC INTERFACETOTAL

PRESSURE

PRESSURESTATIC

1/2" FEMALE SS PIPE FITTING

ENCLOSURERELIEF

E B

RELIEFPURGE

D A

ENCLOSURE BOTTOM

ELECTRICAL KNOCKOUTBY OTHERS

9.0"

INSTRUMENTAIR

C

AC POWER &SIGNALSSIGNALS

FIGURE 2.0



2.2. ELECTRICAL & PNEUMATIC INSTALLATION Refer to Figure 2.1 for electrical and pneumatic installation clarification.

FIELD CONNECTION CODE

ACTIVATE ISOLATION VALVE

ACTIVATE PURGE VALVE

PURGE CYCLE ACTIVATED (DRY CONTACTS)OPEN=NORMAL / CLOSED=PURGE CYCLE

AIR VOLUME SIGNAL (4-20mA)

1.6A FUSE1.6A FUSE

4

TB2

23

1

7 -

FUSE/POWER SWITCH

115VAC (L)115VAC (N)EARTH GROUND

6

54

3

+

TB1

2

1

F2F1

PNEUMATIC BULKHEAD CONNECTIONS

ENCLOSURE RELIEF PORT

PURGE RELIEF PORT

INSTRUMENT AIR/60-80PSIG/SS 1/2" PIPE COUPLING

TOTAL PRESSURE(HIGH)/SS 1/2" PIPE COUPLING

AIR VOLUMESTATIC PRESSURE(LOW)/SS 1/2" PIPE COUPLING

C

E

D

B

A

FIGURE 2.1



3. MICROTRANS AIRFLOW TRANSMITTER 3.1. KEY FUNCTIONS The following figure and description identify the function of each button.

Number Description

1 Enter Key - Allows a user to enter into the Field Menu, enter into a selected menu item or store into memory changes made to the program.

2 Up Key - Allows the user to scroll up in the menu list to a selected item or increase digits when making value changes.

3 Right Key - When making changes to user values the right key allows the user to scroll to the correct digit for changes.

4 Down Key - Allows the user to scroll down in the menu list to a selected item or decrease digits when making value changes.

5 Left Key - When making changes to user values the left key allows the user to scroll to the correct digit for changes.

6

Escape Key - The Escape key allows the user to back out of the menu to the active display. If a user starts to make a change and decides to cancel the change, escape will allow the user to return to the Active Display without making the change (see Section 3.1 Active Display).

7 Power Switch – Allows a user to turn power off to the MicroTrans during field wiring changes or modifications to the device.



3.2. INPUT/OUTPUT SET-UP The MicroTrans has been configured and calibrated at the factory for your specific requirements. Refer to MicroTrans Set-Up label located on the left side of unit to verify correct Input/Output configuration for the application. Refer to chart and Figure 2.3 below if output configuration changes are required.

3.2.1. Process output To change the output configuration, set the shunts as follows:

Process Output Range J9 J11 Current 4-20ma PRO/I Remove Voltage 0-10vdc PRO/V Remove Voltage 0-5vdc PRO/V Install

3.2.2. Temperature Output (Option) To change the output configuration, set the shunts as follows:

Temperature Output Range J9 J11 Current 4-20ma TEMP/I Remove Voltage 0-10vdc TEMP/V Remove Voltage 0-5vdc TEMP/V Install

*Note: Installing J11 shunt will configure both Process and Temperature output to 0-5vdc

3.2.3. Temperature Input (Option) To change the input configuration, set the shunt as follows:

Temperature Input J8 Jumper SelectionCurrent I Voltage V

J2

J11(Process/Temp. Output 0-5vdc selection)

1 2

J1

3 1 2

ESC

J11

J9(Process/Temp. Output selection)

J8(Temp. Input selection)

4

ENTER

TEMP.

3 4J9 VI

DISPLAY

PRO

1VI

2 3

J3

R50

5 1 2 3 4 65 7 8 9

J4

J8

I

V

DISPLAYDISPLAYDISPLAY

R50 R50 R50

DISPLAY

R50

OFFON

POWERSWITCH

PICA FUSEF1(1.5A)

FIGURE 2.3



3.3. COMMON CONFIGURATION CHANGES

3.3.1. Area Factor The area factor can be entered or modified as follows:

Step 1. From the active display, enter the Tech. Config. menu by pressing the Up/Down buttons simultaneously.

Step 2. Enter password number 1000 by pressing the Up button once. Step 3. Press the Enter button once to access the Tech. Config menu. Step 4. Press the Enter Button once to access the Area Factor menu. Step 5. Enter new Area Factory using Up/Down/Left/Right buttons. Step 6. Press Enter button once. Step 7. Press ESC button once. Step 8. The active display should now be displayed.

Tech. Config. Password: 1000

⇓ Area Factor (FT2)

Area Factor ⇒ (001.000)

Warning Message: Op Range Outside allowable Value Op Range will be reset to the MAX F.S. value

If the new Area Factor causes the existing Operating Range value to be outside the new calculated Min. or Max Full Scale value, the Operating Range will be reset to the new Max Full Scale value. A new Operating Range value will need to be entered. This can be accomplished by performing the following steps:

Step 1. Press ESC button twice to return to the Active display. Step 2. Press the Enter button once to access the Field menu. Step 3. Press the Enter button once to access the Operating Range menu. Step 4. Enter a new Operating Range value equal to or less than Max. F.S. value. Step 5. Press Enter button once. Step 6. Press ESC button once. Step 7. Process Output is automatically rescaled to the new Operating Range.



3.3.2. Operating Range The Operating Range allows the user to enter a value which will represent 100% of the process output signal. The menu will display the Maximum Full Scale value possible for the user to enter as the Operating Range. The Max. value is calculated using 110% of the natural span transducer value installed in the MicroTrans. This Operating Range can be input using the following steps:

Step 1. From the active display, enter the Field menu by pressing the Enter button. Step 2. Press the Enter button once to access the Operating Range menu. Step 3. Enter new Operating Range using Up/Down/Left/Right buttons. Step 4. Press the Enter button once. Step 5. Press ESC button once. Step 6. The active display should now be displayed. Step 7. Process Output is automatically rescaled to the new Operating Range.

If the new Operating Range is out of the acceptable range, a new Operating Range value must be entered.

Warning Message: Value entered is out of range. Acceptable range is 40,000 to 100,000 CFM

(Press Enter)



4. PLC SETUP

4.1. PLC TIMING SEQUENCE Drawing below shows PLC device and timing sequence for the High Pressure Purge system.

(5SEC)

SIGNAL OUTPUT HOLD

PURGE PULSE

ISOLATION VALVE PULSE

REMOTE PURGE CYCLE

(5SEC)B09

(5SEC)B05

B14

B10(5SEC)

B11

DISPLAYPLC

Q11 2

24VAC

NL

Q3Q21 2 1

OK

2

ESC

Q41 2

I1 I2

INPUTS

I3 I4 I5 I6

MICROTRANS OUTPUT HOLD(Q4)

PURGE CYCLE(Q3)

ISOLATION VALVE(Q2)

REMOTE PURGE CYCLE(Q1)

START PULSE

4.2. PLC CLOCK SETUP (Refer to figure shown in section 4.1)

Apply power to the High Pressure Purge panel and perform the following steps:

Step 1. Press the ESC button. Step 2. The display should read Stop, Set Param, Set…and Prog. Name. Press the down

button until the arrow lines up with Set … and press the OK button. Step 3. The display should read Clock, Contrast and Start Screen. Use the up and down

buttons until the arrow lines up with Clock and press the OK button. Step 4. Use the up/down/ right and left buttons to enter the correct day, time and date

information and then press the ESC button. Step 5. To return to normal operation, press the ESC button again.



4.3. BLOCK TIMER PROGRAMMING Refer to timing sequence shown in section 4.1 to determine which block timer needs to be changed and then perform the following steps:

Step 1. Press the ESC button. Step 2. The display should read Stop, Set Param, Set…and Prog. Name Press the down

button until the arrow lines up with Set Param and press the OK button. Step 3. Use the up and down buttons to select the block timer you wish to change and

press OK. Select the digit you want to change and press the up or down button to change the value and press OK.

Step 4. To return to normal operation, press the ESC button twice.

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