user’s manual model y/17b6 pneumatic buoyancy transmitter · user’s. manual. model y/17b6 ....

User’sManual Model Y/17B6

Pneumatic Buoyancy Transmitter

IM 02C01E01-01E

IM 02C01E01-01E7th Edition

i

IM 02C01E01-01E

Model Y/17B6Pneumatic Buoyancy Transmitter

IM 02C01E01-01E 7th Edition

CONTENTS1. Introduction ............................................................................................... 1-1

1.1 Safety Precautions ............................................................................................1-21.2 Warranty .............................................................................................................1-2

2. General ...................................................................................................... 2-12.1 Outline ................................................................................................................2-12.2 Principle of Operation ......................................................................................2-12.3 Standard Specifications ...................................................................................2-22.4 Model and Suffix Codes ...................................................................................2-32.5 Options ...............................................................................................................2-32.6 Dimensions ........................................................................................................2-4

3. Installation ................................................................................................. 3-13.1 Installation of Side of Vessel Mounting Type Transmitter ............................ 3-13.2 Installation of Top of Vessel Mounting Type or Cage Mounting Type

Transmitter .........................................................................................................3-23.3 Installation in Turbulent Liquid ........................................................................3-33.4 Air Set Mounting (optional) ..............................................................................3-33.5 Air Supply and Transmission Piping ..............................................................3-3

4. Operation ................................................................................................... 4-14.1 Reference Adjustment ......................................................................................4-1

4.1.1 Adjustment Procedure .......................................................................4-1

4.1.2 Formula to Calculate Output for Density Application ......................... 4-1

5. Maintenance .............................................................................................. 5-15.1 Basic Troubleshooting .....................................................................................5-15.2 Supply Air Filter .................................................................................................5-15.3 To Clean Restrictor ...........................................................................................5-15.4 To Clean Nozzle Assembly ...............................................................................5-25.5 To Replace Screen Filters ................................................................................5-25.6 To Remove Pneumatic Amplifier .....................................................................5-25.7 Calibration Notes ..............................................................................................5-35.8 Calculation of Buoyant Force ..........................................................................5-35.9 To Change Range ..............................................................................................5-35.10 Calibrating Weight ............................................................................................5-3

7th Edition: Feb. 2013 (KP)All Rights Reserved, Copyright © 1982, Yokogawa Electric Corporation

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IM 02C01E01-01E

5.11 Calibration .........................................................................................................5-45.12 Selection of Displacer ......................................................................................5-55.13 Overrange Stop Adjustment ............................................................................5-55.14 Further Disassembly ........................................................................................5-5

5.14.1 Dashpot Removal ..............................................................................5-5

5.14.2 Dashpot Alignment .............................................................................5-5

5.14.3 To Remove Feedback Bellows and Zero Spring (behind Zero Screw) ..........................................................................5-6

5.14.4 To Remove Back Flexures .................................................................5-6

5.14.5 To Remove Force Balance Unit .........................................................5-6

5.14.6 To Remove Relay Mounting Assembly .............................................. 5-6

5.14.7 To Remove Front Flexure ..................................................................5-7

5.14.8 To Remove Force Bar ........................................................................5-7

5.14.9 Flapper Alignment ..............................................................................5-7

5.14.10 Bolt Tightening Procedure – Force Balance Unit .............................. 5-8

Appendix 1. 80A Pneumatic Amplifier (Part No. F9138YA) .........................A-1A1.1 Principles of Operation ................................................................................... A-1A1.2 Cleaning the Pneumatic Amplifier ................................................................. A-1A1.3 Calibration Procedure using Calibrating Fixture ......................................... A-2

Customer Maintenance Parts ListModel Y/17B6 (Style B) Pneumatic Buoyancy Transmitter ................CMPL 02C01E01-01E

<1. Introduction> 1-1

IM 02C01E01-01E

1. IntroductionThank you for purchasing the Yokogawa’s instrument.

The instrument is correctly calibrated at the factory before shipment. To ensure correct and efficient use of the instrument, please read this manual thoroughly and fully understand how to operate the instrument before operating it.

Regarding This Manual• This manual should be provided to the end

user.• The contents of this manual are subject to

change without prior notice.• All rights reserved. No part of this manual may

be reproduced in any form without Yokogawa’s written permission.

• Yokogawa makes no warranty of any kind with regard to this material, including, but not limited to, implied warranty of merchantability and fitness for a particular purpose.

• If any question arises or errors are found, or if any information is missing from this manual, please inform the nearest Yokogawa sales office.

• The specifications covered by this manual are limited to those for the standard type under the specified model number break-down and do not cover custom-made instrument.

• Please note that changes in the specifications, construction, or component parts of the instrument may not immediately be reflected in this manual at the time of change, provided that postponement of revisions will not cause difficulty to the user from a functional or performance standpoint.

Safety Precautions• For the protection and safety of the operator

and the instrument or the system including the instrument, please be sure to follow the instructions on safety described in this manual when handling this instrument. In case the instrument is handled in contradiction to these instructions, Yokogawa does not guarantee safety.

• Yokogawa assumes no responsibilities for this product except as stated in the warranty.

• If the customer or any third party is harmed by the use of this product, Yokogawa assumes no responsibility for any such harm owing to any defects in the product which were not predictable, or for any indirect damages.

• The following safety symbols are used in this manual:

WARNING

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTIONIndicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices.

IMPORTANTIndicates that operating the hardware or software in this manner may damage it or lead to system failure.

NOTEDraws attention to information essential for understanding the operation and features.

<1. Introduction> 1-2

IM 02C01E01-01E

1.1 Safety Precautions

WARNING

• Instrument installed in the process is under pressure. Never loosen or tighten the process connector bolts as it may cause dangerous spouting of process fluid.

• During draining condensate or venting gas in transmitter pressure-detector section, take appropriate care to avoid contact with the skin, eyes or body, or inhalation of vapors, if the accumulated process fluid may be toxic or otherwise harmful.

Since draining condensate or bleeding off gas gives the pressure measurement disturbance, this should not be done when the loop is in operation.

• If the accumulated process fluid may be toxic or otherwise harmful, take appropriate care to avoid contact with the body, or inhalation of vapors even after dismounting the instrument from process line for maintenance.

IMPORTANT• Supply air must be clean and dry.

- Supply air (pressurized) must not be dewed event at -40°C.

- Air filter with 5μm (0.0002 inch) of filter element maximum opening shall be recommended.

- Oil filter should be provided to remove oil in the supply air.

• Maximum supply air pressure of transmitter without fixed pressure regulator (GAS or NAS type) is 215 kPa. Should the pressure exceed 215 kPa, it is possible to break the pneumatic amplifier, bellows etc.

• When weling piping during construction, take care not to allow welding currents to flow through the transmitter.

• Do not step on this instrument after installation.

• Applying a leakag-detecting fluid to the instrument may damage the plastic parts resulting from corrosion or cracking.

1.2 Warranty The warranty shall cover the period noted on

the quotation presented to the purchaser at the time of purchase. Problems occurred during the warranty period shall basically be repaired free of charge.• In case of problems, the customer should

contact the Yokogawa representative from which the instrument was purchased, or the nearest Yokogawa office.

• If a problem arises with this instrument, please inform us of the nature of the problem and the circumstances under which it developed, including the model specification and serial number. Any diagrams, data and other information you can include in your communication will also be helpful.

• Responsible party for repair cost for the problems shall be determined by Yokogawa based on our investigation.

The Purchaser shall bear the responsibility for repair costs, even during the warranty period, if the malfunction is due to:• Improper and/or inadequate maintenance by

the Purchaser.• Failure or damage due to improper handling,

use or storage which is out of design conditions.

• Use of the product in question in a location not conforming to the standards specified by the Yokogawa, or due to improper maintenance of the installation location.

• Failure or damage due to modification or repair by the party except Yokogawa or who is requested by Yokogawa.

• Malfunction or damage from improper relocation of the product in question after delivery.

• Reason of force majeure such as fires, earthquakes, storms/floods, thunder/lightening, or other natural disasters, or disturbances, riots, warfare, or radioactive contamination.

<2. General> 2-1

IM 02C01E01-01E

2. General2.1 OutlineModel Y/17B6 Buoyancy Transmitter is pneumatic force-balance instrument that measures liquid level, liquid density, or inter-face level, and transmits the measurement as a proportional 0.2 to 1.0 kgf/cm2 or bar, 20 to 100 kPa, or 3 to 15 psi air signal.

F0201.ai

Figure 2.1 Outline

2.2 Principle of OperationThe buoyance level transmitter is installed so that the displacer (a cylinder so ballasted that it is heavier than the liquid it displaces) is suspended in the process liquid. As the level of the liquid varies, the buoyant force on the displacer varies proportionally (Archimedes’ principle for heavier than liquid bodies).The buoyant force exerted on the displacer is applied to the end of the force bar. The force bar seal serves as both a fulcrum for the force bar and as a seal to contain the process liquid and vapors. The force is transmitted through the flexure connector to the range rod, which pivots on the range wheel.Any movement of the range rod causes a minute change in the clearance between the flapper and nozzle. This produces a change in the output pressure from the pneumatic amplifier to the feedback bellows until the force applied by the bellows balances the force on the displacer.The output pressure, which establishes the force-balance, is the transmitted pneumatic signal which is proportional to the level being measured. This signal is transmitted to a pneumatic receiver to record, indicate, and/or control.

Bias screw Range wheel

Feedback bellows

Supply air OutputZero screw

Pneumatic amplifier

Reducing tube

Flapper-nozzle

Flexure connector

Range rod

Force bar seal

Force bar

Displacer

F0202.ai

Figure 2.2 Principle of Operation

<2. General> 2-2

IM 02C01E01-01E

2.3 Standard SpecificationsMeasuring Span:

Level Measurement:0.3 to 3 m (11.8 to 118 inches). Specific gravity (SG) of liquid 0.7 or more.

Interface Level Measurement:0.5 to 3 m (19.7 to 118 inches). Difference of SG 0.7 or more.

Density Measurement:SG 0.7 or more. Displacer effective length between 0.5 and 3 m (19.7 and 118 inches).

Working Pressure Limits:Full vacuum and the flange rating per JIS B 2201 or ANSI B16.5.

Output Signal:20 to 100 kPa.

Accuracy:±0.5 % of span (calibrated by suspending weight from force bar).

Repeatability:0.1 % of span.

Dead Band:0.1 % of span.

Supply Pressure:140 kPa, 1.4 kgf/cm2 or bar, or 20 psi.

Air Consumption:0.85 m3/h at 0 °C, 101.3 kPa {1.033 kgf/cm2} absolute (0.5 scfm).

Ambient Operating Temperature Range:-40 to 120 °C (-40 to 250 °F).

Maximum Process Temperature Range:200 °C (400 °F) at transmitter flange face.

Mounting:Direct to process with connection flange.

Air Connections:Tapped for JIS R1/4 or 1/4 NPT, whichever specified.

Wetted Parts Material:Force Bar and Other Parts: JIS SUS 316 stainless steel.Raised Face Adapter: JIS SUS 316 stainless steel.Force Bar Seal: Cobalt-nickel alloy.Force Bar Seal Gasket: Viton.

Body and Body Flange Material:JIS S25C carbon steel.Not wetted by process.

Body Flange:Side of Vessel Mounting Type: Nominal size 100 mm (4 inches), JIS 10 or 20 K, ANSI Class 150 or 300 raised face (RF) modified lapped flange. In this type, body flange is connected directly to the process side flange.Mounting Type Other Than Above: Nominal size 50 mm (2 inches), JIS 40 K RF modified lapped flange.

Cover:Cast aluminum, finished with gray polyurethan paint. Gasketed for National Electrical Manufacturers Association (NEMA) (USA) Type3 weatherproof service.

Approximate Weight:Side of vessel mounting type (JIS 10 K flange): 10 kg (22 lb).Mounting type other than above: 8 kg (18 lb).

Table 2.1 Output Signal

Capsule Pa-calibration M-calibration P-calibration bar-calibrationOutput Signal 20 to 100 kPa 0.2 to 1.0 kgf/cm2 3 to 15 psi 0.2 to 1.0 bar

Option Code Standard Specifications CAL-M CAL-E CAL-B

<2. General> 2-3

IM 02C01E01-01E

2.4 Model and Suffix CodesModel Suffix Codes Description

Y/17B6 . . . . . . . . . . . Pneumatic buoyancy transmitter.

-200K . . . . . . Cage mounting type or top of vessel mounting type.

Mounting Type, Flange Specification

-410 K. . . . . .-4150 . . . . . .

-420 K. . . . . .-4300 . . . . . .

JIS 10 KANSI Class 150.JIS 20 KANSI Class 300.

Side of vessel mounting type.Nominal flange size 100 mm (4 inches).

Options / /

2.5 OptionsAir Set:

Fixed combination pressure regulator and filter with 35 mm diameter pressure gauge mounted and piped to transmitter. Also available without gauge.

Supply pressure: 0.2 to 1 MPa, 2 to 10 kgf/cm2 or bar, or 30 to 150 psi.Output pressure: 140 kPa, 1.4 kgf/cm2 or bar, or 20 psi.Maximum operating temperature: 80 °C (180 °F).

Air Connection Gauge Scale Option Code

JIS Rc 1/4 female

0 to 200 kPa0 to 2 kgf/cm2

0 to 30 psi0 to 2 barWithout gauge

GAS-FPGAS-FMGAS-FEGAS-FBGAS-F

1/4 NPT female

0 to 200 kPa0 to 2 kgf/cm2

0 to 30 psi0 to 2 barWithout gauge

NAS-FPNAS-FMNAS-FENAS-FBNAS-F

Transmitter Cover Other Than Standard Finish:Specify in color block □ by color code, refer toGS 22D01F01-00E. Option code: SCF-□.

ANSI Connection:For transmitters with ANSI process flange, air connection with tapped for ANSI NPT threads is available.Option code: NPT

Calibration Units:M-calibration (Unit kgf/cm2) Option code: CAL-M P-calibration (Unit psi) Option code: CAL-E bar-calibration (Unit bar) Option code: CAL-B

<2. General> 2-4

IM 02C01E01-01E

2.6 DimensionsSide of Vessel Mounting Type

125265

10t

25 8033

161

118

94

163105

25.4110

Output connection

Air supply connection(without air supply set)

Allow clearance 150 mm for cover removal

Air supply gauge(option)

Air supply set (option)

Unit : mm

Air supply connection(with air supply set)Process connection flange

ØD

ØC

Ø14

5

Ø95

- 0 20

n-φh

F0203.ai

20

Raised face modified flangeBolt holes

øC øD tNo. DIA.

100 mm JIS 10 K 8 19 175 210 184 inch ANSI Class 150 8 19.1 190.5 228.6 23.8100 mm JIS 20 K 8 23 185 225 244 inch ANSI Class 300 8 22.4 200 254 31.8

Cage Mounting Type or Top of Vessel Mounting Type (Model Y/17B6−200K)

265 125

Ø48

24 80

33

161

118

94

Air supply set (option)

163

105

25.4110

Output connection

Air supply gauge(option)

Air supply connection(without air supply set)

Air supply connection(with air supply set)

Allow clearance 150 mm for cover removal

F0204.ai

Unit : mm

<3. Installation> 3-1

IM 02C01E01-01E

3. Installation3.1 Installation of Side of Vessel

Mounting Type Transmitter

NOTEMounting bolts, nuts and gaskets for process connections and displacer must be provided by customer.

1. Face of flange should be vertical.2. Position transmitter with zero screw up.3. Hold displacer horizontal and insert into flanged

opening, with hook positioned as shown.Face of flange

Gasket Zero screw

F0301.ai

4. Insert assembly into opening until displacer swings down and flanges meet.

F0302.ai

5. Line up bolt holes and insert flange bolts. Tighten bolts gradually and uniformly to 80~110 N·m torque.

F0303.ai

Flange bolts

6. Using level, position transmitter so that edge of plate is horizontal.

To replace adapter

1. Insert the adapter into the tip of the force bar.2. Insert a pin into the hole of the adapter and

slightly move the adapter right and left so that the pin aligns with the slot of the force bar.

When the pin meets the slot, the entire pin drops into the slot and the adapter is engaged with the force bar.

F0304.ai

Force bar(do not twist)

Adapter

Shaft

Hook

SlotPin

Clamp screw

To remove adapter, reverse procdure above.Note: When mounting or removing the adapter, do not apply

excessive force to the force bar.


IM 02C01E01-01E

3.2 Installation of Top of Vessel Mounting Type or Cage Mounting Type Transmitter

IMPORTANTTo install either of top-flange type or cage type, first connect the flange of spacer to the mechanical chamber, and then hang the displacer on the adapter of transmitter. Displacer, displacer chamber, mechanical chamber, spacer, gasket, mounting bolts and nuts for process connection must be provided by customer.

1. Face of flange on chamber should be vertical.2. Position transmitter with zero screw up.3. Align guide pin on spacer to hole in mecanical

chamber. Line up bolt holes and insert at fixed bolts. Tighten nuts gradually and uniformly to 80 ~ 110 N·m torque.

Guide pinGasket

Face of flangePin hole

Stopper pin

Mechanical chamberFixed bolt Spacer

Zero screw

F0305.ai

4. Unscrew stopper pin. Hang displacer on adapter with hook positioned as shown below, and screw stopper pin. Mount transmitter on tank or displacer chamber. Tighten flange bolts and nuts. Using level, position transmitter so that edge of plate is horizontal.

To install top of vessel mounting type transmitter

Tank

Stopper pin

Displacer

Adapter

F0306.ai

To install cage mounting type transmitter

Displacer

Mechanical chamber

Stopper pin

Displacer chamber

Adapter

F0307.ai

To replace adapter

1. Insert the adapter into the tip of the force bar.2. Insert a pin into the hole of the adapter and

slightly move the adapter right and left so that the pin aligns with the slot of the force bar.

When the pin meets the slot, the entire pin drops into the slot and the adapter is engaged with the force bar.

Shaft

Hook

Stop plate

Adapter

Force bar(do not twist)

Pin Slot

F0308.ai

To remove adapter, reverse procedure above.Note: When mounting or removing the adapter, do not apply

excessive force to the force bar.


IM 02C01E01-01E

3.3 Installation in Turbulent Liquid

If liquid is turbulent or agitated, use guide rings or stilling well to prevent lateral movement of displacer.

Guide ring or stilling well

F0309.ai

3.4 Air Set Mounting (optional)

F0310.ai

Air set can be mounted as illustrated above.For associated parts, refer to Customer Maintenance Parts List CMPL 02C01E01-01E.

3.5 Air Supply and Transmission Piping

1/4" (JIS 8A) tubing to receiver(1/4" × 56 m long = 1000 CC)

Air supply

Output gaugeReceiver

F0311.ai

NOTE• Air supply must be regulated at a fixed

pressure 1.4 kgf/cm2 or bar, 140 kPa, or 20 psi.

• Instrument uses 0.5 Nm3/h of air in normal operation.

• Air must be clean and dry. Blow out filter regularly.

• Transmission line must be free of leaks.• Air volume in transmission line is required

more than 1000 CC. If necessary, connect any capacity tank on

line.

<4. Operation> 4-1

IM 02C01E01-01E

4. Operation4.1 Reference Adjustment

4.1.1 Adjustment ProcedureIn operation, with density or interface applications, displacer must be totally submerged.Make reference adjustment with instrument in operating position before putting instrument into operation. This is an operating adjustment only; if exact calibration between 0.2 to 1.0 kgf/cm2 or bar, 20 to 100 kPa, or 3 to 15 psi is desired, refer to section 5.11.1. Disconnect line to receiver. Connect 0 to 1.5

kgf/cm2 or bar, 0 to 150 kPa, or 0 to 22 psi manometer or test gauge to OUT connection.

2. Adjust air supply to pressure at which transmitter will be operated.

Manometer or test gauge

Air supply

F0401.ai

3. Liquid Level Application: Lower the tank level below bottom of displacer

or to minimum measuring level. Interface Application: Displacer must be totally submerged with

interface level below bottom of displacer. Density Application: Displacer must be totally submerged. Measure

specific gravity (with hydrometer or by other means) and calculate output using formula below.

4. Remove cover. Adjust bias screw so that output is 0.2 ±0.035 kgf/cm2 or bar, 20 ±3.5 kPa, or 3 ±0.5 psi (or calculated value with density application). Then use zero screw to bring output to 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi (or calculated value).

Bias screw(coarse adjustment)

Zero screw(fine adjustment)

F0402.ai

5. Reconnect OUT piping. If necessary, change zero adjustment on receiver so that receiver reading is correct.

4.1.2 Formula to Calculate Output for Density Application

Output =

(0.8)S.G. reading – Lower range limit

+ 0.2Upper range limit – Lower range limit

Example: lnstrument range, 0.5 – 1.5 specific gravity SG. reading, 0.750

Output = (0.8)0.75 – 0.5

+ 0.2 = 0.4 kgf/cm2

1.5 – 0.5Note: With 20 to 100 kPa or 3 to 15 psi output, substitute 20 and

80 or 3 and 12 for 0.2 and 0.8 respectively, in the equation above.

<5. Maintenance> 5-1

IM 02C01E01-01E

5. Maintenance5.1 Basic TroubleshootingDIFFICULTY: No reading (or very low reading) at receiver.1. Check that 1.4 kgf/cm2 or bar, 140 kPa, or 20

psi is supplied to transmitter.2. Clean reducing tube (Refer to section 5.3).3. Disconnect output line at transmitter and install

a pressure gauge.4. If gauge reading is apparently correct, check

transmission line and receiver for leaks.5. If gauge reading is obviously wrong,

a. Check instrument caribration (Refer to section 5.7).

b. Check instrument for damage or leaks.c. Replace pneumatic amplifier (Refer to

section 5.6).

Output lineAir supply

ReceiverPressure gauge Pressure

gauge

F0501.ai

Figure 5.1 Basic Troubleshooting

5.2 Supply Air Filter

F0502.ai

Blow filter out at least once a day.Figure 5.2 Air Filter

5.3 To Clean RestrictorA plugged reducing tube will cause low output pressure.1. Remove amplifier (Refer to section 5.6).2. Lift out restrictor with tweezers.3. Clean with a 0.18 mm dia. wire.4. Apply thin film of Vaseline, or similar lubricant to

O-ring.

F0503.ai

Amplifier

Tweezers

wire

O-ring

Figure 5.3 Cleaning of Restrictor


IM 02C01E01-01E

5.4 To Clean Nozzle AssemblyAn accumulation of dirt at the flapper nozzle may cause a zero shift.1. Unscrew nozzle nut. Do not let soldered nut on

opposite side of casting turn.2. Ease nozzle out of casting.3. Loosen clamp screw and rotate S-clamp.

Withdraw nozzle O-ring connection with twisting motion. Do not bend tubing.

4. Clean nozzle with 0.5 mm dia. wire, compressed air, or suitable solvent. Wipe top of flapper clean.

F0504.ai

Wire

O-ring

5. Before replacing, apply a thin film of Vaseline or similar lubricant to O-ring. Replace nozzle assembly in reverse order. Check reference adjustment (Refer to section 4.1).

F0505.ai

Clamp screw

Nozzle nut

Nozzle assembly

Nozzle O-ring connection

Feedback O-ring connection

Figure 5.4 Cleaning of Nozzle Assembly

5.5 To Replace Screen FiltersIf fine screen air filters become clogged, remove with pointed tool and replace.

F0506.ai

Screen

Figure 5.5 Replace Screen Filters

5.6 To Remove Pneumatic Amplifier

To remove amplifier, remove 2 large screws and pry off. A gasket is furnished with each replacement amplifier. When replace the pneumatic amplifier, tighten the screws by the torque of 1.6 to 1.8 N·m (16 to 18 kgf·cm). For servicing details, refer to Appendix 1.

F0507.ai

Screw

Figure 5.6 Remove Pneumatic Amplifier


IM 02C01E01-01E

5.7 Calibration NotesThe calibration procedure on section 5.11 does require removing the instrument from the tank.The calibration procedure require calculation of the buoyant force (Refer to section 5.8) and the use of a calibrating weight (Refer to section 5.10).

5.8 Calculation of Buoyant Force

The buoyant force (span) is numerically equal to the difference between the net weights on the end of force bar when the outputs are at 0.2 and 1.0 kgf/cm2 or bar, 20 and 100 kPa, or 3 and 15 psi.

Buoyant force =πD2

(L) (ρ) kg4

D = Outer diameter of displacerL = Effective length of displacerρ = Density of liquid

Example: D = 35 mm L = 1,000 mm ρ = 1.1 gr/cm3

Buoyant force =π × 3.52

× 100 × 1.1 × 0.001 4

= 1.058 kg(10.37N)

F0508.ai

Upper and lower ranges being measured are stamped here. Difference between upper and lower ranges is to correspond to buoyant force.

5.9 To Change RangeIf the length of the displacer is satisfactory, calculate the new buoyant force using the formula on section 5.8. If the new buoyant force is between 0.7 and 1.8 kg, or 6.86 and 17.64N, merely recalibrate the transmitter to the new range.If the buoyant force is less than 0.7 kg, a displacer with a larger volume is required. If the length of the displacer is unsatisfactory, a different displacer is required. Listed on section 5.12 are the sizes of standard displacers available in stainless steel.

The user may fabricate his own displacer provided the following conditions are met:

1. New buoyant force must not be less than 0.7 kg. (6.86N)

2. New displacer must be heavier than densest liquid it displaces.

3. Weight of displacer plus hanger cable must not exceed 2.1 kg. (20.58N)

5.10 Calibrating WeightThe buoyant force calculated on section 5.8 is the difference between the minimum and maximum forces applied to the transmitter. These forces produce 0.2 and 1.0 kgf/cm2 or bar, 20 and 100 kPa, or 3 and 15 psi outputs respectively (with reversed output option, these figures are reversed).In the calibration on section 5.11, with a weight decreasing by buoyant force from the displacer, the output should be 1.0 kgf/cm2 or bar, 100 kPa, or 15 psi, and with another weight equal to the displacer, the output should be 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi.The calculated weight will rarely be a simple number (such as 1.000 kg). It may be more convenient to use the nearest lower easily-obtainable weight for caribration. For example, in the example on section 5.8, a 1.000 kg weight can be used instead of the calculated 1.058 kg. The output corresponding to the new weight can be determined from the applicable formula below.

Calibration:

Output = 1.0 –Actual Weight

(0.8)Calculated Weight

Note: With 20 to 100 kPa or 3 to 15 psi output, substitute 80 and 100 or 12 and 15 respectively for 0.8 and 1.0 in formula.


IM 02C01E01-01E

5.11 CalibrationThis calibration requires a weight decreasing by the buoyant force from the displacer to produce 1.0 kgf/cm2 or bar, 100 kPa, or 15 psi output, and another weight equal to displacer to produce 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi output. For details of calibration weight, refer to table below. If a smaller weight is used, the corresponding output can be determined from the applicable formula on section 5.10.To calculate the buoyant force, refer to section 5.8.

Weight Liquid Level Density Interface

Weight #1 (Displacer weight)

(Displacer weight) – (Buoyant force of liquid of minimum density)

(Displacer weight) – (Buoyant force of upper liquid)

Weight #2 (Displacer weight) – (Buoyant force of liquid)

(Displacer weight) – (Buoyant force of liquid of maximum density)

(Displacer weight) – (Buoyant force of lower liquid)

1. Disconnect transmitter and remove from tank. Remove displacer.

2. Clamp flange to board with hole to clear adapter or to mounting plate in vise. Zero screw must face up.

F0509.ai

Board

Cage mounting type or Top of vessel mounting type

3. Attach loop of string or fine wire to adaptor so that weight will hang straight downward.

4. Connect 0 to 1.5 kgf/cm2 or bar, 0 to 150 kPa, or 0 to 22 psi manometer or test gauge to OUT connection.

5. Connect air supply to IN connection and adjust to pressure at which transmitter will be operating.

F0510.ai

This surface must be horizontal.

Board

Loop

Manometer or test gauge

Side of vessel mounting type

Air supply

6. Remove cover. Attach weight #1 (see table above) to loop. Output should be 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi, or calculated value for actual weight used (Refer to section 5.10). Adjust bias screw so that output is approx. correct value. Then adjust zero screw so that output is exactly correct value. Adjustment screws are identified in illustration below.

F0511.ai

Range wheel

Zero screw

Bias screw

Weight

7. Remove weight #1. Attach weight #2 to loop. If output is not 1.0 kgf/cm2 or bar, 100 kPa, or 15 psi (or calculated value for actual wieght used), adjust range wheel to get correct output (moving range wheel toward base will increase output). Retighten locknut after each adjustment. Remove weight.

8. Repeat Steps 6 through 7 until both outputs are correct without further adjustments. Tighten range wheel locknut securely.

9. Remove weight and loop of string or fine wire. Reinstall transmitter on tank. Make reference adjustment, refer to section 4.1.


IM 02C01E01-01E

5.12 Selection of DisplacerIf buoyant force range span is 0.7 to 1.8 kg or specific gravity range is 0.65 to 1.5, an applicable displacer would be selected from Table below. When buoyant force is less than 0.7 kg such as in interface application, a special size displacer is required.

Standard Displacer

Displacer SizeWeight and

Measurement RangeEffective Length

Outer DIA.

Sectional Area

300 mm 65 mm 3317 mm2 1. Displacer Weight W = 2100 g ± 20 g

(20.58 ± 0.196N)

2. Span of Buoyant Force

ΔW = 0.7 to 1.8 kg (6.86 to 17.64N)

3. Range of Specific Gravity

ρ = 0.7 to 1.5

500 50 1963

800 43 1452

1000 35 962

1200 35 962

1500 32 804

1800 30 707

2000 27 573

2500 24.5 471

3000 21 346

5.13 Overrange Stop AdjustmentThe overrange stop prevents damage to both the flapper-nozzle and the dashpot. Before calibrating, check that the stop is correctly adjusted.Caution: Never move the force bar if the overrange stop is loose

or disconnected.

1. Turn on air supply. Adjust level (or density) so that output is stabilized between 0.2 and 1.0 kgf/cm2 or bar, 20 and 100 kPa, or 3 and 15 psi.

2. Clearance between both sides of overrange stop (U-shaped bracket) and eccentric stop pin to be sufficient to permit sliding of paper between.

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U-shaped bracket

3. If not, loosen lockscrew with a 3/32" hex-key wrench. Hold eccentric pin in correct position

with open-end wrench and tighten lockscrew.

5.14 Further Disassembly

IMPORTANTNormal servicing of the transmitter does not require the removal of any parts other than those already mentioned. Further disassembly is not recommended by YOKOGAWA. The following procedures are described for emergency use only and the user must assume responsibility for loss of accuracy or damage to the transmitter.

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Dashpot

Dashpot clamp

Dashpot flexure

Flexure locking screw

Flexure mounting bracket

Dashpot clamp screw

Parts associated with servicing of dashpot.

Dashpot nut

5.14.1 Dashpot Removal1. Remove flexure locking screw 26, and loosen

the two dashpot clamp screws 28. Lift out dashpot assembly. Disconnect flexure 25 by unscrewing dashpot nut 31.

Caution: In removing and replacing dashpot nut, keep dashpot 30 from turning by putting a thin, open-end wrench across flat sections of dashpot just under flexure.

2. To replace assembly, position narrow slotted hole of flexure on dashpot stud. Put washer on stud and loosely screw on nut 31. Slide dashpot into clamp. Position flexure laterally so that slotted hole in free end is approximately centered on tapped hole under it. Tighten nut 31.

3. Adjust height of dashpot until free end of flexure just touches flexure mounting bracket 27. Tighten the two clamp screws 28. Loosely insert flexure locking screw 26 and its washer in place.

5.14.2 Dashpot Alignment1. With air supply on, there must be some output

from transmitter.2. Loosen flexure locking screw 26 just enough

to allow free vibration of adjacent parts. Put a finger on dashpot nut 31 and gently move dashpot assembly back and forth (total travel is


IM 02C01E01-01E

about 1 mm) in line of flexure. When assembly is in middle of its travel, tighten flexure locking screw 26. Flexure 25 must be flat and horizontal.

5.14.3 To Remove Feedback Bellows and Zero Spring (behind Zero Screw)

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1. Carefully pry out feedback O-ring connection at amplifier (Refer to section 5.4).

2. Using 7/16" open-end wrench, remove the two 1/4" cap screws 12 holding bracket 11.

3. Unscrew completely zero adjustment screw 13 to release zero spring. Bracket 11 and feedback bellows 15 can now be removed.

4. Remove nut 14 to disconnect feedback bellows from bracket.

5. Remove zero spring by unscrewing it from range bar 16. Be careful not to change alignment on the spring clamp.

6. Reverse this procedure to reassemble, making sure that post on bracket is within zero spring alignment clamp. Tighten zero adjustment screw until about 6 mm of thread remains exposed. When replacing feedback connection, apply a thin film of Vaseline or similar lubricant to O-ring.

7. Calibrate transmitter.

5.14.4 To Remove Back FlexuresUnless front flexure 6 has already been removed, 7/64" hex-key wrench used in Step 2 must be cut down to fit into screws 20.1. Using 7/16" open-end wrench, remove 1/4" cap

screws 12 holding bracket 11.2. Using a 7/64" hex-key wrench, remove two

screws 20 and plates holding back flexures 7 , and remove back flexures.

3. Reverse this procedure to reassemble. Do not tighten cap screws 12.

4. Loosen cap screws 8 and force bar screws 3 . Apply 10 kgf/cm2 or bar, 1 MPa, or 150 psi or safe high value to tank. Tap body lightly and tighten all screws.


5.14.5 To Remove Force Balance Unit1. Remove relay mounting assembly 5 (Refer to

section 5.14.6).2. Remove displacer and associated parts.3. Using a 3/16" hex-key wrench, remove the

three socket-head screws holding force balance unit to body. In removing screws, be careful not to damage flexures 6 and 7 . Withdraw force balance unit from body.

4. Reverse this procedure to reassemble. When tightening screws removed in Step 3, follow procedure on section 5.14.10 to maintain original factory accuracy. Replace O-ring that fits around force bar on top of body.

Apply a thin film of Vaseline or a similar lubricant to the O-ring.


5.14.6 To Remove Relay Mounting Assembly

1. Carefully pry out nozzle and feedback O-ring connections at amplifier (Refer to section 5.4).

2. Remove relay mounting assembly 5 by unscrewing the two screws 9 above mounting plate and small screw 10 beneath mounting plate.

3. Reverse this procedure to reassemble. When replacing O-ring connections, apply a thin film of Vaseline or similar lubricant to O-rings.


IM 02C01E01-01E

5.14.7 To Remove Front Flexure1. Remove bias screw assembly. Disconnect

dashpot flexure from arm.2. Carefully pry out both feedback and nozzle

O-ring connections at amplifier and remove nozzle tubing from casting 1 (Refer to section 5.4).

3. Remove relay mounting assembly 5 (Refer to section 5.14.6).

4. Using a 7/64" hex-key wrench, remove top plate 2 by removing two plate screws 21.

5. Using a 9/64" hex-key wrench, remove force bar screws 3 .

6. Remove cap screws 8 and plates and lift front flexure 6 off of dowel.

7. Reverse this procedure to reassemble. If force bar has been removed or force balance unit loosened from body, top of front flexure should be visually lined up with casting 1 , so that there is no twist evident in flexures. Then tighten plate screws 21. Do not tighten cap screws 8 .

8. Loosen cap screws 12 and force bar screws 3 . Apply 10 kgf/cm2 or bar, 1 MPa, or 150 psi or safe high value to tank. Tap body lightly and tighten all screws.

9. Check overrange stop adjustment and dashpot alignment (Refer to section 5.13 and 5.14.2) before calibrating.

5.14.8 To Remove Force Bar1. Remove displacer and associated parts.2. Remove force balance unit (Refer to section

5.14.5).3. Using a 9/64" hex-key wrench, remove the two

force bar screws 3 . Force bar 4 can now be removed through bottom. This unit should not be further disassembled; if its diaphragm seal is removed from force bar, leaks are likely to occur after reassembly. If either force bar or its seal requires replacing, they both should be replaced as a unit.

4. Reverse this procedure to reassemble. Replace O-ring at force bar seal. Before inserting force bar into top-works, lubricate O-ring and top of force bar with Vaseline or similar lubricant. Carefully ease force bar into O-ring recess to avoid damaging O-ring.

5. When reassembled, loosen the four cap screws 8 and 12 and two force bar screw 3 . Apply 10 kgf/cm2 or bar, 1 MPa or 150 psi or safe high value to tank. Tap body lightly and tighten all screws.

6. Check overrange stop adjustment and dashpot alignment (Refer to section 5.13 and 5.14.2) before calibrating.

5.14.9 Flapper AlignmentThe flapper is aligned at the factory; a realignment is required only if the force balance unit has been disassembled. This alignment procedure requires a spacing tool (see illustration), a 1/8" open-end wrench, and a small screwdriver. (The wrench and screwdriver are included in tool kit Model 6925-6000, obtainable from YOKOGAWA.)Caution: Use care in turning thin flexure alignment screw to

prevent shearing.

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45°

25 mm

150 mm handle

All dimensions except diameter are approx.

5.31 ± 0.03 mm DIA.

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Alignment screw

Locknut

1. Remove bias screw assembly.2. Connect an air supply regulated at a fixed

pressure 1.4 kgf/cm2 or bar, 140 kPa, or 20 psi to input, and a 0 to 1.5 kgf/cm2 or bar, 0 to 150 kPa, or 0 to 22 psi test gauge or manometer to output.

3. Adjust level in tank or attach to force bar a weight corresponding to a 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi output.

4. Turn range wheel to top of range bar.5. Using spacing tool as feeler gauge, insert tool

at lower end of range bar between threaded surface and machined casting surface. Adjust zero screw to get correct spacing for tool.


IM 02C01E01-01E

6. Loosen flapper alignment screw locknut and adjust screw so that output is 0.2 kgf/cm2 or bar, 20 kPa, or 3 psi.

7. Repeat Step 5. If output is not between 0.23 and 0.33 kgf/cm2 or bar, 23 and 33 kPa, or 3.4 and 4.8 psi, repeat Steps 5 and 6 until output is within these limits.

8. Retighten flapper alignment screw locknut. Reinstall bias screw assembly. Check transmitter calibration.

5.14.10 Bolt Tightening Procedure – Force Balance Unit

When reinstalling the 3 socket-head bolts that hold the force balance unit to the transmitter body, follow the bolt tightening procedure shown below.

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Bolt identifications

Step No. Bolt Torque (N·m) 1 A 0.62 B 0.63 C 0.64 B 3.5

5 C 3.56 A 2.37 B 5.28 C 5.2

9 A 3.510 B 7.511 C 7.512 A 5.8

<Appendix 1.> A-1

IM 02C01E01-01E

Appendix 1. 80A Pneumatic Amplifier (Part No. F9138YA)

The function of the pneumatic amplifier is to convert a small change in the input signal (an air pressure signal) to a large change in the output signal. Typically a 0.07 kgf/cm2 (0.07 bar, 7 kPa, or 1 psi) change in the input will produce approximately a 0.8 kgf/cm2 (0.8 bar, 80 kPa, or 12 psi) change in the output.

A1.1 Principles of OperationThe air supply enters the pneumatic amplifier through a port on the surface of the instrument on which the amplifier is mounted. The input signal (nozzle pressure) enters the amplifier through another port and acts on the diaphragm. Since the stem valve is mounted on the diaphragm, the two move in unison.

As the input signal increases, the stem pushes against a ball valve which in turn moves a flat spring, allowing the supply air to enter the amplifier body. Further motion of the stem valve, causes it to close off the exhaust port. Thus, when the input pressure increases, the stem (exhaust) valve closes and the supply valve opens; when the input decreases, the stem valve opens and the supply valve closes. This varies the pressure to the output.

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Input

Flat spring mounting screw

Ball valve

Supply air

OutputExhaust

Tension adjustment

Diaphragm

Flat spring

Exhaust valveStem valve

Supply air valve

Figure A1. Cross Sectional View

A1.2 Cleaning the Pneumatic Amplifier

Should the pneumatic amplifier require cleaning, remove it from the instrument. Loosen the two cover screws and the spring mounting screw to disassemble the pneumatic amplifier. Clean the disassembled parts with a suitable solvent (do not allow solvent to contact the gasket) and dry them carefully with compressed air. When reassembling the pneumatic amplifier, all corresponding holes must line up and all outside edges must coincide with other edge of the amplifier body casting. Tighten all screws.

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Cover screw

Cover

Gasket

DiaphragmBody

Ball

Flat spring Flat spring mounting screw

Figure A2. Exploded View

CAUTIONAfter reassembling the amplifier, perform a calibration with the calibrator. (Refer to section A1.3)

<Appendix 1.> A-2

IM 02C01E01-01E

A1.3 Calibration Procedure using Calibrating Fixture

This procedure requires a Model 6971 calibrator, which is available from Yokogawa.(1) Mount the amplifier on the calibrator with the

flat spring mounting screw to the left. (Be sure to mount the amplifier in the correct direction.) Fasten the amplifier with the two wing nuts.

(2) Air supply. Apply air at 1.4 kgf/cm2 or bar, 140 kPa, or

20 psi to air supply coupling 2 .(3) Self-centering the stem valve.

a. Seal nozzle 3 by manual contact for several seconds, until the nozzle pressure (diaphragm back-up pressure) is 1.4 kgf/cm2

or bar, 140 kPa, or 20 psi and confirm that the nozzle pressure exceeds 1.0 kgf/cm2 or bar, 100 kPa, or 15 psi.

b. Open nozzle 3 and manually close the air check valve, until the nozzle input pressure is zero (atmospheric pressure).

c. Repeat steps a and b above.(4) Nozzle input pressure adjustment. Turn nozzle 3 with a wrench while observing

nozzle input pressure gauge 5 , so the nozzle input pressure is 0.25 kgf/cm2 or bar, 25 kPa, or 3.6 psi.

(5) Output pressure confirmation. Read the output pressure on output pressure

indicator 6 . When output pressure falls between 0.55 and 0.60 kgf/cm2 (0.55 and 0.60 bar, 55 and 60 kPa, or 7.8 and 8.5 psi), apply air pressure at 0 and 1.4 kgf/cm2 (0 and 1.4 bar, 0 and 140 kPa, or 0 and 20 psi) by one cycle the same as step (2). Next, confirm that output pressure falls between 0.55 and 0.60 kgf/cm2 (0.55 and 0.60 bar, 55 and 60 kPa, or 7.8 and 8.5 psi) under the same condition as step (4). When the output pressure falls within this range, output adjustment is completed, but if it does not, perform output pressure adjustment as per step (6).

(6) Output pressure adjustment.a. Close the air supply valve.b. Remove plug 9 using a 3/16" Allen wrench.c. Insert a screwdriver in the plug hole and turn

the tension adjustment (turn it clockwise to decrease output, and counterclockwise to increase output).

d. Install plug 9 .e. Repeat steps (2) through (6).

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Wrench

Supply air coupling

Nozzle

Air check valve

Nozzle input pressure gauge

Output pressure gauge

Amplifier mounting studs

Front view

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Plug

Air check valve

Knob

Supply air coupling

Rear view

Figure A3. Model 6971 Pneumatic Amplifier Calibrator

Note: The above amplifier output pressure adjustment can be performed by removing the amplifier from the calibrator.

Yokogawa Electric Corporation

All Rights Reserved. Copyright © 1982, Yokogawa Electric Corporation

Customer Maintenance Parts List

Model Y/17B6 (Style B)Pneumatic Buoyancy Transmitter

CMPL 02C01E01-01E6th Edition:Nov.2012(KP)

Side of Vessel Mounting Type

F0601.ai

Cage Mounting Type or Top of Vessel Mounting Type

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Basic Type Steam Jacket Type Fim Type

Item Part No. Qty Description

1 See Page 2 1 Transmitter Assembly2 F9203JR 1 Ring (JIS 40K-50A)(S25C)3 F9203KL 1 Adaptor (SUS316 Stainless Steel)4 F9203JY 1 Gasket

13 F9200CG 1 Adaptor Assembly15 F92000P 1 Pin17 D0117BP 1 Tag Plate18 0046879 2 Self-tapping Screw


1 See Page 2 1 Transmitter Assembly2 Below 1 Ring

F9203JS JIS 10K-100A (S25C)F9203JT JIS 20K-100A (S25C)F9203NA ANSI 4B-150 lb (S25C)F9203NB ANSI 4B-300 lb (S25C)

3 F9203KM 1 Adaptor (SUS316 Stainless Steel)4 F9200DE 1 Adaptor Assembly6 F9200CP 1 Pin 8 D0117BP 1 Tag Plate9 0046879 2 Self-tapping Screw

2

CMPL 02C01E01-01ENov.2012Subject to change without notice.

F0603.ai

3

CMPL 02C01E01-01ENov.2012Subject to change without notice.


1 U0106AN 1 Cover Assembly2 U0106XC 1 Cover3 X0100RP 4 Screw (with washer)4 U0102MS 1 Gasket (130 mm long)5 - 1 Data Plate

6 0046879 4 Self-Tapping Screw7 U0114BP 1 Flexure8 X0116PB 1 5-40×3/16 Screw9 0013335 1 Washer10 X0104BR 1 Nut

11 0029423 2 Washer- U0122BZ 1 Zero Elevation Kit

(items 12 through 20)12 U0122BB 1 Spring Assembly13 U0102TF 1 Scale

14 A0100YC 2 6-32×1/4 Soc.H.Screw15 U0122BT 1 Bracket16 0014071 1 5-40×1/8 R.H.Screw17 F9147CE 4 Screw18 F9100EW 1 Bracket

19 U0122BX 1 Stop20 U0122BY 1 5-40×1/2 Screw21 X0100ML 2 8-32×1/4 Soc.H.Screw22 F9100FF 1 Nozzle Assembly23 D0123MZ 1 *O-Ring

24 F9101DF 1 Relay Mounting Assembly (JIS connection)

D0124JD 1 Relay Mounting Assembly (ANSI connection)

25 U0102MF 1 Clamp

26 X0100AA 1 Screw27 U0103FP 2 *Screen28 D0124JG 1 Restrictor Assembly30 A037744 1 *O-Ring32 F9138YA 1 *Pneumatic Amplifier, 80A

33 C0100EM 1 *Gasket34 X0116CS 2 10-32×1 Pan Head Screw

(with spring washer)35 F9100EZ 1 Connection (JIS connection)

F9100FY 1 Connection (ANSI connection)

36 0006534 2 10-32×1/2 Fil.Head Screw (with washer)

- F9100ER 1 Force Balance Unit Assembly (items 37 through 60)

37 U0102KL 2 Flexure

38 U0102LP 1 Plate39 X0100MK 4 6.32×3/16 Soc.H.Screw40 N0999FM 1 Flexure Assembly


41 U0102KP 1 Plate42 0023442 2 3-48×3/16 Fil.Head Screw43 N0999QA 1 Range Bar Assembly44 U0102KC 1 Spring Holder45 N0999MG 1 Spring

46 U0102KR 1 Spring Holder47 F9100ES 1 Base48 N0999MH 1 Flapper49 U0119TA 1 Bracket Assembly50 U0102NA 1 Pin

51 U0102FY 1 Screw52 U0102FZ 1 Spring53 U0119TC 1 Bellows Assembly54 D0123MZ 1 O-Ring (silicone)55 0017611 1 Nut

56 U0102LN 4 Screw57 0048219 2 Lock Washer58 U0102TE 1 Bracket Assembly59 X0166MX 2 Washer60 N0142NY 1 Spacer

61 X0104EB 1 Nut62 X0100YC 3 1/4-28×7/8 Soc.H.Screw63 F9100FM 2 Column64 N0148CD 1 Clamp65 A0100YC 2 6-32×1/4 Soc.H.Screw

66 N0119EK 1 Dashpot Assembly67 0012691 3 8-32×3/8 Flat Head Screw68 F9100AT 1 Gasket69 U0102RC 1 Plate70 X0100BX-J 1 Screw

71 X0100SB 2 1/4-28×3/8 R.H.Screw72 F9100FD 1 Force Bar Assembly

(for side of vessel mounting type)F9100FB 1 Force Bar Assembly

(for cage mounting type or top of vessel mounting type)

73 Y9825YX 4 Soc.H.Screw, M8×2574 Y9800SU 4 Spring Washer75 F9100FA 1 Body76 U0102TK 1 *O-Ring

Note *Denotes parts more frequently replaced.

4

CMPL 02C01E01-01E


l 0050509 1 Elbow (JIS connection)0050506 1 Elbow (ANSI connection)

2 F9145BF 1 Plug (JIS connection)D0114PN 1 Plug (ANSI connection)

3 0050386 1 Connector Assembly (JIS connection)(prior to Aug.1987)

0050325 1 Connector Assembly (ANSI connection)(prior to Aug.1987)G9611AD 1 Connector Assembly (JIS connection)(since Aug.1987)G9611AW 1 Connector Assembly (ANSI connection)(since Aug.1987)

4 0051237 1 Tube (prior to Aug.1987)F9101FM 1 Tube (since Aug.1987)

5 0050392 1 Elbow Assembly (JIS connection)(prior to Aug.1987)0050332 1 Elbow Assembly (ANSI connection)(prior to Aug.1987)G9611CD 1 Elbow Assembly (JIS connection)(since Aug.1987)G9611CN 1 Elbow Assembly (ANSI connection)(since Aug.1987)

6 See Table 1 1 Pressure Gauge

7 Below 1 ElbowG9612DB For JIS connection Prior to

Apr.1998G9612DD For ANSI connectionF9140FH For JIS connection Since

Apr.1998F9140FJ For ANSI connection

8 F9140DA-A 1 Filter Regulator (JIS connection)F9140DB-A 1 Filter Regulator (ANSl connection)

9 U0123AF 1 Bracket10 0040190 2 1/4-20×3/8 F.H.Screw11 0041292 2 1/4-28×3/8 R.H.Screw

Table 1 Pressure Gauge

Suffix Code Prior to Apr.1998 Since Apr.1998

/G(N)AS-FM G9615AA G9615AT

/G(N)AS-FE G9615AE G9615EK

/G(N)AS-FP (0 to 200 kPa) G9615AH G9615EA

/G(N)AS-FB (0 to 2 bar) G9615AM G9615EC

Note) In order for gauge shipped befor April,1998 to be replaced, please use gauge and elbow, which part numbers are effective April,1998.

Nov.2012Subject to change without notice.

Integral Air Filter Set

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user’s manual model y/17b6 pneumatic buoyancy transmitter · user’s. manual. model y/17b6 ....

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