EMERSON Fisher 646 Electro-Pneumatic Transducer Instruction Manual

EMERSON Fisher 646 Electro-Pneumatic Transducer

Introduction

Do not install, operate or maintain a 646 electro‐pneumatic transducer without being fully trained and qualified in valve, actuator and accessory installation, operation and maintenance. To avoid personal injury or property damage it is important to carefully read, understand, and follow all of the contents of this manual, including all safety cautions and warnings. If you have any questions about these instructions, contact your Emerson sales office before proceeding.

Input Signal

4-20 mA DC, constant current with 30 VDC maximum compliance voltage

Equivalent Circuit

The 646 equivalent circuit is a series circuit consisting of a constant voltage drop battery of approximately 2.1 VDC and a total resistance of 143 ohms. Input is shunted by three 6.8 V zener diodes.

Output Signal

0.2 to 1.0 bar (3 to 15 psig) direct acting only

Supply Pressure

• Recommended: 1.4 bar 20 psig
• Minimum: 1.4 bar 20 psig
• Maximum: 3.4 bar 50 psig

Average Steady State Air Consumption

0.08 m3/hr (3 scfh) at 1.4 bar (20 psi) supply pressure

Maximum Output Air Capacity

8.0 m3/hr (300 scfh) at 1.4 bar (20 psig) supply pressur

Performance

• Reference Accuracy: ±0.5% of full scale output span; includes combined effects of hysteresis, linearity, and deadband
• Independent Linearity: ±0.5% of full scale output spanHysteresis: 0.4% of full scale output span
• Frequency Response: Gain is attenuated 3 dB at 10 Hz with transducer output signal piped to a typical instrument input
• Temperature Effect: ±4% of full scale output span per 55°C (100°F) chang
• Supply Pressure Effect: 0.2% of full scale output span per psi supply pressure change
• Vibration Effect: Less than 1% of full scale output span when tested to SAMA PMC 31.1, Condition 3
• Electromagnetic Compatibility
• Meets EN 61326‐1:2013
• Immunity:Industrial locations per Table 2 of the EN 61326‐1 standard. Performance is shown in table 2 below.
• Emissions:Class A
• ISM equipment rating: Group 1, Class A

Operating Ambient Temperature Limits

-40 to 71°C (-40 to +160°F)

Electrical Classification

• CSA:Intrinsically Safe, Explosion proof Type n,Dust Ignition proof, DIV 2
• FM:Intrinsically Safe, Explosion proof, Type n, Non‐incendive, Dust‐Ignition proof
• ATEX:Intrinsically Safe, Flameproof, Type.
• IECEx:Intrinsically Safe, Flameproof, Type n.

Housing

• CSA:Type 3 Encl.
• FM:NEMA 3
• IP54 ATEX:IP6
• IECEx:P54

Mount instrument with vent on side or bottom if weatherproofing is a concern.

Other Classifications/Certifications

• CUTR: Customs Union Technical Regulations.
• Russia, Kazakhstan, Belarus, and Armenia.
• INMETRO:National Institute of Metrology, Quality and Technology Brazil.
• KTL: Korea Testing Laboratory South Korea
• Contact your Emerson sales office for classification/certification specific information

Connections

• Supply and Output Pressure: 1/4 NPT internal connection
• Vent: 1/4 NPT internal
• Electrical: 1/2‐14 NPT conduit connection
• Wire Size: 18 to 22 AWG

Adjustments

Zero and Span: Trim potentiometers (20 turn) for zero and span adjustments are located under the housing cap

Mounting Position

Any position is acceptable for standard pipestand, panel, or actuator mounting. For weatherproof housing, mount the transducer so the vent can drain.

Approximate Weight Transducer Only

1.6 kg 3.5 pounds

Declaration of SEP

Fisher Controls International LLC declares this product to be in compliance with Article 4 paragraph 3 of the PED Directive 2014/68/EU. It was designed and manufactured in accordance with Sound Engineering Practice (SEP) and cannot bear the CE marking related to PED compliance. However, the product may bear the CE marking to indicate compliance with other applicable European Community Directives.

Actuator Stroking Time

NOTE
Specialized instrument terms are defined in ANSI/ISA Standard Process Instrument Terminology

1. The pressure and temperature limits in this document and any applicable standard or code limitation should not be exceeded.
2. Normal m3/hr.
3. Normal cubic meters per hour 0C and 1.01325 bar, absolute.
4. Standard cubic feet per hour 60F and 14.7 psia.
5. Average flow rate determined at 12 mA and 0.6 bar 9 psig output.
6. Performance values are obtained using a transducer with a 4 to 20 mA DC input signal and a 0.2 to 1.0 ba r3 to 15 psig output signal at an ambient temperature of 24C 75F.

EMC Summary Results Immunity

Port| Phenomenon| Basic Standard| Test Level| Performance Criteria (1)
---|---|---|---|---

Enclosure

| Electrostatic discharge (ESD)| IEC 61000‐4‐2| 4 kV contact

8 kV air

| A

Radiated EM field

|

IEC 61000‐4‐3

| 80 to 1000 MHz  10V/m with 1 kHz AM at 80%

1400 to 2000 MHz  3V/m with 1 kHz AM at 80%

2000 to 2700 MHz  1V/m with 1 kHz AM at 80%

|

A

I/O signal/control

| Burst (fast transients)| IEC 61000‐4‐4| 1 kV| A
Surge| IEC 61000‐4‐5| 1 kV (line to ground only, each)| B
Conducted RF| IEC 61000‐4‐6| 150 kHz to 80 MHz at 3 Vrms| A
A = No degradation during testing. B = Temporary degradation during testing, but is self‐recovering. Specification Limit = +/‐ 1% of span.

Output Time Relationships for Fisher 646 Transducer

Description

The transducer, receives a 4-20 milliampere DC input signal and transmits a proportional 0.2 to 1.0 bar 3 to 15 psig pneumatic output pressure to a final control element. A typical application is in electronic control loops where the final control element is a control valve assembly that is pneumatically operated. The input signal and output pressure range of the transducer is indicated on the nameplate attached to the housing.

NOTICE
Dropping or rough handling of the transducer can cause damage to the converter module resulting in a shifted output or a minimum output.

WARNING
This product does not meet third party approvals (CSA, FM, ATEX, or IECEx) for use with natural gas as the supply medium. Use of natural gas as the supply medium can damage the instrument and result in personal injury or property damage from fire or explosion. Should you need an instrument for use with natural gas, Fisher 846 and i2P‐100 electro pneumatic transducers both meet third party approvals for use with natural gas as the supply medium. Contact your Emerson sales office for information on these products.

Educational Services

• Emerson Automation Solutions
• Educational Services – Registration
• Phone: +1-800-338-8158
• E-mail: education@emerson.com emerson.com/mytraining

Installation

WARNING
Always wear protective clothing, gloves, and eyewear when performing any installation operations to avoid personal injury. Check with your process or safety engineer for any additional measures that must be taken to protect against process media. If installing into an existing application, also refer to the WARNING at the beginning of the

NOTICE
Do not use sealing tape on pneumatic connections. This instrument contains small passages that may become obstructed by detached sealing tape. Thread sealant paste should be used to seal and lubricate pneumatic threaded connections.

Hazardous Area Classifications and Special Instructions for Safe Use and

Installation in Hazardous Locations

• CSA Hazardous Area Approvals Fisher 646 Electro Pneumatic Transducer (D104199X012)
• FM Hazardous Area Approvals Fisher 646 Electro Pneumatic Transducer (D104200X012)
• ATEX Hazardous Area Approvals Fisher 646 Electro Pneumatic Transducer (D104201X012)
• IECEx Hazardous Area Approvals Fisher 646 Electro Pneumatic Transducer (D104202X012)

All documents are available from your Emerson sales office or at Fisher.com. Contact your Emerson sales office for all  other approval/certification information.

Mounting

When a transducer is ordered as part of a control valve assembly, the factory mounts the transducer on the actuator and connects the necessary tubing, then adjusts the transducer as specified on the order. Transducers also can be ordered separately for mounting on a control valve assembly already in service, or for mounting on a 2 inch diameter pipestand, a flat surface, or a bulkhead. The transducer may be ordered either with or without mounting parts. Mounting parts include a mounting plate and bolts and, if ordered for pipestand mounting, a pipe clamp. Tubing is not included if the transducer is not factory mounted. Use 10 mm 3/8‐inch diameter tubing for all input and output connections. The length of tubing between the transducer output and the final control element should be as short as possible.  If weatherproofing is required, mount the transducer so that the vent can drain. Do not allow moisture or condensate to collect in the vent.

Pneumatic Connections

NOTICE
Do not use sealing tape on pneumatic connections. This instrument contains small passages that may become obstructed by detached sealing tape. Thread sealant paste should be used to seal and lubricate pneumatic threaded connections all pressure connections on the transducer are 1/4 NPT internal connections. Use 10 mm 3/8 inch tubing for all pressure connections.

Dimensions and Connections

Supply Pressure Requirements

WARNING
Severe personal injury or property damage may occur if the instrument air supply is not clean, dry and oil free. While useand regular maintenance of a filter that removes particles larger than 40 micrometers in diameter will suffice in most applications, check with an Emerson field office and industry instrument air quality standards for use with corrosive air or if you are unsure about the proper amount or method of air filtration or filter maintenance. Supply pressure must be clean, dry air. Use a Fisher 67CFR filter regulator with standard 5 micrometer filter, or equivalent, to filter and regulate supply air. The filter regulator can be mounted on a bracket with the transduce  or mounted on the actuator mounting boss. An output pressure gauge may be installed on the regulator to indicate the supply pressure to the transducer. Also, as an aid for calibration, a second gauge may be installed on the transducer to indicate transducer output pressure. Connect the nearest suitable supply source to the 1/4 NPT IN connection on the filter regulator (if furnished) or to the 1/4 NPT SUPPLY connection on the transducer case if the filter regulator is not attached.

Diagnostic Connections

To support diagnostic testing of valve/actuator/positioner packages, special connectors and hardware are available. Typical connector installations. The hardware used includes a 1/4 NPT pipe nipple and pipe tee with a 1/8 NPT pipe bushing for the connector. The connector consists of a 1/8 NPT body and body protector.

Diagnostics Hookup for the Fisher 646 Transducer

FRONT OUTPUT

SIDE OUTPUT

Note
If the 646 transducer is used in a valve assembly with a positioner, no hook‐up for diagnostic testing is required for the 646. The hook up for diagnostic testing should be installed at the positioner. Install the connectors and hardware between the 646 transducer and the actuator.

1. Before assembling the pipe nipple, pipe tee, pipe bushings, actuator piping, and connector body, apply sealant to
   all threads.

2. Turn the pipe tee to position the connector body and body protector for easy access when doing diagnostic testing.

Vent

If a remote vent is required, the vent line must be as short as possible with a minimum number of bends and elbows. To connect a remote vent, remove the plastic vent. The vent connection is 1/4 NPT internal. Use 3/8 inch tubing to provide a remote vent.

Electrical Connections

WARNING
For explosion proof applications, disconnect power before removing the housing cap. For explosion‐proof Class 1, Division 1 applications using metal conduit, install a conduit seal no more than 457 mm 18 inches from the transducer. Personal injury or property damage may result from explosion if the seal is not installed. For other explosion‐proof applications, install the transducer in accordance with applicable codes.

Note
For proper wiring and installation for intrinsically safe installations the nameplate affixed to the product and loop schematics for CSA and FM or to instructions provided by the barrier manufacture.

WARNING
Select wiring and/or cable glands that are rated for the environment of use such as hazardous area, ingress protection, and temperature. Failure to use properly rated wiring and/or cable glands can result in personal injury or property damage from fire or explosion. Wiring connections must be in accordance with local, regional, and national codes for any given hazardous area approval. Failure to follow the local, regional, and national codes could result in personal injury or property damage from fire or explosion. Use the 1/2‐14 NPT conduit connection, shown in figure 3, for installation of field wiring. For Class I, Division I explosion‐proof applications, install rigid metal conduit and a seal no more than 457 mm 18 inches from the transducer. Also, install conduit using local and national electrical codes which apply to the application  connecting field wiring from the control device to the transducer. Connect the positive wire from the control device to the transducer + terminal and, the negative wire from the control device to the transducer terminal. Do not overtighten the terminal screws. Maximum torque is 0.45 Nm 4 lb fin. Connect the transducer grounding terminal to earth ground. Grounding terminals are provided both inside and outside the transducer housing.

Typical Field Wiring Diagram

NOTE
FOR TROUBLESHOOTING OR MONITORING OPERATION AN INDICATING DEVICE CAN BE A VOLTMETER ACROSS A 250 OHM RESISTOR OR A CURRENT METER.

Equivalent Circuit

Zero and Span Adjustments and Terminal Block Connections Cap Removed

Operating Information

The normal mode of operation for the 646 transducer requires that the pneumatic output pressure be piped to the final control element. If this is not done the resulting pneumatic output will vent to the atmosphere.

Calibration

WARNING
On explosion‐proof instruments, remove electrical power before removing the housing cap in a hazardous area. Personal injury or property damage may result from fire or explosion if power is applied to the transducer with the cap removed in a hazardous area. For intrinsically safe areas, current monitoring during operation must be with a meter  approved for use in hazardous areas.

Equipment Required

Choose a current or voltage source that is capable, without switching ranges, of driving the transducer through itsentire input range. Switching ranges on a current or voltage source will produce spikes or mid‐scale reverses in the input signal presented to the transducer, causing errors. The current source should be capable of delivering 30 mA
with 30 VDC maximum compliance voltage.

Calibration Procedure

WARNING
For critical processes, this calibration procedure requires taking the final control element out of service. To avoid personal injury or property damage due to an uncontrolled process, provide some temporary means of process control before beginning the calibration procedure.

Transducer

1. If a current source other than the control device is used as the input source, disconnect the control device and connect the current source positive terminal to the transducer + terminal and the current source negativeterminal to the transducer – terminal.
2. If an external meter is used, connect the current source positive terminal to the transducer + terminal.
3. Connectthe meter positive terminal to the transducer “-” terminal and the meter negative terminal to the current source negative terminal.
4. Check the supply pressure to ensure it is at the recommended pressure listed on the transducer nameplate.
5. Adjust the input current to 4.00 milliamperes DC.
6. The output pressure should be 0.2 bar 3 psig.
7. If not, adjust the ZERO potentiometer until the output pressure is 0.2 bar 3 psig.
8. Adjust the input current to 20.00 milliamperes DC.
9. The output pressure should be 1.0 bar 15 psig.
10. If not, adjust the SPAN potentiometer until the output pressure is 0.8 bar 15 psig.
11. Repeat steps 2 through 6 until the output pressure is within the referenced accuracy requirements without further adjustment.
12. If a current source other than the control device was used, disconnect the current source and reconnect the control device.

Principle of Operation

The converter module receives a standard DC current input signal from a control device to operate coils in a force balanced beam system which in turn, controls bleed air through an integral nozzle/flapper arrangement. The nozzle pressure provides the input signal to operate the relay as shown in figure 8. Relay output pressure is applied, through tubing, directly to the final control element or valve/actuator assembly.

Fisher 646 Transducer Schematic

Maintenance

The normal mode of operation for the 646 transducer requires that the pneumatic output pressure be piped to the final control element. If this is not done the resulting pneumatic output will vent to the atmosphere. Due to normal wear or damage from external sources such as debris in the supply medium, periodic maintenance o repair of the transducer may be necessary. Maintenance of the transducer consists of troubleshooting, removal forinspection, and replacement of component parts.

WARNING
To avoid personal injury or property damage from the sudden release of pressure:

• Always wear protective clothing, gloves, and eyewear when performing any maintenance operations.
• Do not remove the actuator from the valve while the valve is still pressurized.
• Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator.
• Be sure the actuator cannot suddenly open or close the valve.
• Use bypass valves or completely shut off the process to isolate the valve from process pressure.
• Relieve process pressure on both sides of the valve.
• Use lock‐out procedures to be sure that the above measures stay in effect while you work on the equipment.
• Do not open when an explosive dust atmosphere is present.
• Check with your process or safety engineer for any additional measures that must be taken to protect against process media.
• For explosion proof applications, disconnect power before removing the housing cap.
• Personal injury or property damage may result if power is not disconnected.
• The presence of Emerson personnel and approval agency personnel may be required if you service other than normal, routine maintenance, such as calibration) or replace components on a 646 transducer that carries a third party approval.
• When you replace components, use only components specified by the factory.
• Substitution with other components may void the third party approval and result in personal injury or property damage.
• Also, always use proper component replacement techniques.
• Improper techniques can cause poor quality repairs and impair the safety features of the device.
• The converter module should never be disassembled because the magnetism in the coils will decrease permanently.
• If troubleshooting or alignment attempts indicate a faulty converter module, replace the module or return the transducer to your Emerson sales office for repair.

Troubleshooting

The following procedures require taking the control valve/actuator assembly out of service. Provide some temporary means of process control before taking the control valve out of service.

Electrical

1. Ensure terminal lug connections from the control device to the transducer are of the correct polarity.
2. At the transducer, ensure that the milliampere DC signal is applied and that it is within the 4 to 20 milliampere range.

Pneumatic

Provide a 4‐30 milliampere DC current source, supply pressure, and a gauge to monitor the output pressure when checking transducer operation. Refer to figure 10 for key number locations.

1. Ensure that supply pressure to the transducer is a consistent 1.4 bar (20 psig).
2. If a filter/regulator is used, ensure that it is working correctly. If not, ensure the dripwell is not plugged because of excessive moisture accumulation. If necessary, drain off any moisture, and clean or replace the filter element.
3. Force the converter module to maximum output pressure with a 30 milliampere DC signal. Output pressure should build up to the approximate value of the supply pressure.
4. When the input current is removed, the transducer output pressure should drop to less than 0.14 bar (2 psig). If i does not, check to ensure the vent and exhaust air passageway is free from foreign material.
5. To inspect the relay assembly, refer to the relay maintenance procedures.

Converter Module Replacement

Removal

1. Remove the housing cap key 4.
2. Note the location of the wires, then remove the electrical wiring from the terminal block mounted on the printed wiring board.
3. Remove the two screws key 19 and remove the converter module and wire guide key 42 from the housing.
4. Inspect the O ring key 18 and replace if necessary.

Replacement

1. Lubricate the O‐ring key 18 with a lubricating compound such as key 20 before replacing the converter module in the housing.
2. Insert the converter module and wire guide key 42 into position in the housing key 3.
3. Replace the two screws key 19 and tighten them.
4. Replace the electrical wiring removed in step 2 of the removal procedures.
5. Do not overtighten the terminal screws.
6. Maximum torque is 0.45 Nm lb.
7. Electrically calibrate the module.
8. Replace the housing cap key 4.

Relay Maintenance

Removal

1. Remove the four mounting screws key 7 and remove the relay from the transducer.
2. Be careful not to lose the bias spring key 13 and input diaphragm key 9.
3. Remove the body block key 2 from the relay body assembly key 1.
4. Remove the exhaust port assembly (key 10) from the relay assembly.
5. Remove the body plug key 5 that holds the inner valve spring key 12 and valve plug key 14 in place.
6. Inspect the springs, exhaust seat, valve plug, and other parts for wear or damage; replace as necessary.
7. Note: the valve plug supply seat is an insert in the relay body key 1.
8. If this insert is bad, replace the relay body.
9. Ensure that the fixed restriction in the transducer housing is clear of foreign matter.
10. Make sure all parts of the relay are clean and that all passages are clear of foreign matter.

Assembly

1. Assemble the inner valve spring key 12 onto the body plug key 5 and fit the valve plug (key 14) onto the inner valve spring.
2. To assure best alignment between the valve plug, inner valve spring, and body plug; fit the valve plug onto the inner valve spring so that one of the three tabs at the base of the valve plug sets at the end of the last coil of the inner valve spring.

Valve Plug, Inner Valve Spring and Body Plug Assembly

• Insert the assembled valve plug, inner valve spring, and body plug into the relay body key 1.
• Compress the spring and thread the body plug key 5 into place.
• Then, tighten the body plug. Insert two of the mounting screws key 7 into two opposite holes of the relay body key 1.
• Hold the screws in place while assembling the following parts on the relay body.
• The screws serve as studs to align the parts as they are being assembled.
• When replacing the exhaust port assembly key 10  make sure all passages and screw holes are aligned and that the hole in the center of the exhaust port assembly fits over the valve plug key 14.
• Place the exhaust port assembly on the relay body key 1.
• Hold assembled parts in place.
• Make sure the tabs on the body block (key 2) align with the tabs on the relay body key 1 and that the side with holes faces the relay body. Place the body block on the assembled parts.
• Hold assembled parts in place.
• When replacing the input diaphragm (key 9), make sure all passages and screw holes are aligned. Place the input diaphragm on the body block (key 2).
• Hold assembled parts in place.
• Install the bias spring key 13 into the transducer housing assembly key 3.
• Make sure the tabs on the body block and relay body align with the tab on the transducer housing assembly.
• Place the assembled parts onto the transducer housing assembly.
• Thread the two mounting screws key 7 into the transducer housing assembly.
• Install the remaining two mounting screws.
• Tighten all mounting screws to 2 Nm 20 lb.

Parts Ordering

A serial number is assigned to each transducer and stamped on the nameplate. Always refer to this serial number when corresponding with your Emerson sales office regarding spare parts or technical information.

WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson should not, under any circumstances, be used in any Fisher instrument. Use of components not supplied by Emerson may void your warranty, might adversely affect the performance of the instrument, and could result in personal injury or property damage.

Parts Kits

Description Part Number

• 646 Transducer Repair Kit
• Includes keys 6, 8, 9, 10, 12, 13, 14, and 18.
• The O‐ring for the converter module is also included in the kit.

Part Number

R646X000012

Parts List

Note
Contact your Emerson sales office for Part Ordering information.

• Relay body assembly
• Body block
• Housing assembly
• 1/2 NPT conduit connection
• Housing Cap
•  Body plug
• O‐ring
• Machine screw
• O‐ring
• Input diaphragm
• Exhaust port assembly
• Inner valve spring
• Bias spring
• Valve plug
• Wire retainer 2
• Nameplate, w/o approval
• Screw 2
• O‐ring
• Screw 2 req’d
• Anti‐seize lubricant not furnished with transduce
• Pipe plug, use when gauge is not specified (not shown)
• Gauge, 0-30 psig/0-0.2 MPa/0-2 bar not shown
• Anti‐seize sealant (not furnished with transducer
• Vent, plastic
• Wire guide
• Wire lu
• Set Screw LCIE
• Converter module

646 Transducer

Diagnostic Connections

Note
Contact your Emerson sales office for diagnostic connections ordering information.

Description

FlowScanner diagnostic system hook up. Includes pipe tee, pipe nipple, pipe bushings, connector body, and body protector. See figure 4 for part identification.

Note
If the 646 transducer is used in a valve assembly with a positioner, no hook‐up for diagnostic testing is required for the 646. The hook‐up for diagnostic testing should be installed at the positioner.

Front Output

For units with gauges

• SST fittings
• Brass fittings
• For units without gauges
• SST fittings
• Brass fittings

Side Output

• For units with gauges
• SST fittings
• Brass fittings
• For units without gauges
• SST fittings
• Brass fittings

Mounting Parts

Yoke Mounting With 67CFR Filter Regulator

Note
Contact your Emerson sales office for information on ordering the following 646 mounting options. For the following actuator types and sizes

• 480 sizes 30-130
• 585C all sizes
• 656, sizes
• 40 & 60; 657 & 667, sizes
• 30-100; 1051 & 1052, sizes
• 30-60; 061 sizes
• 30-100; 1066 all sizes23
• Cap screw 4 req’d
• Washer 6 req’d
• Hex nut 4 req’d
• Mounting plate
• Cap screw 2 req’d
• Not req’d for 585C 28
• Washer (6 req’d) 585C only
• 36 Elbow, for 3/8‐inch tubing 4 req’d
• 657, 1051, 1052, 1061,1066 and 1066SR only
• 37 Connector, for 3/8‐inch tubing 2 req’d
• 480, 585C, and 667 only
• Spacer (2 req’d)For 667 size 30
• Cap Screw (2 req’d)
• For 585C only
• For 667 size 30

Yoke Mounting w/o 67CFR Filter Regulator

For the following actuator types and sizes: 480 sizes 30-130; 585C all sizes; 657 sizes 30-100; 667 sizes40-100; 1051 & 1052 sizes 30-60; 1061 sizes 30-100; 1066 all  sizes.

• Cap screw 2 req’d
• 36 Elbow, for 3/8‐inch tubing
• For 657, 1051, 1052, 1061, 1066, and 1066SR only 37 Connector, for 3/8‐inch tubing
• For 657, 1051, 1052, 1061, 1066, and 1066SR (1 req’d)
• For 480, 585C and 667 (2 req’d)

Casing Mounting

For the following actuator types and sizes: 657 & 667 all sizes; 1051 sizes 30-60; 1052 sizes 20-70 23

Cap screw

• With 67CFR (4 req’d)
• Without 67CFR (2 req’d)

24 Washer

• With 67CFR (4 req’d)
• Without 67CFR (2 req’d)

25 Hex nut

• With 67CFR 4 req’d
• Without 67CFR 2 req’d

Typical Fisher 646 Mounting With 67CFR Filter Regulator

NOTES

• 3/8‐INCH TUBING SUPPLIED ONLY WHEN 646 IS FACTORY MOUNTED
• KEY NUMBERS 24, 25, 27, 32, 33, 37, 38, 39 ARE NOT SHOWN

Mounting plate

• For 657 & 667 sizes 80 & 100 only
• With 67CFR (2 req’d)
• Without 67CFR (1 req’d)

26 Mounting plate

• For other actuators With 67CFR 2 req’d
• Without 67CFR 1 req’d

36 Elbow, for 3/8‐inch tubing

• With 67CFR 2 req’d
• Without 67CFR 1 req’d

37 Connector, for 3/8‐inch tubing

• With 67CFR 2 req’d
• Without 67CFR 1 req’d

Pipestand and Panel Mounting

Cap screw

• Pipestand with 67CFR (4 req’d)
• Pipestand without 67CFR & panel (2 req’d)
• 45 multiple panel(1) 2 req’d

Washer

• Pipestand with 67CFR (4 req’d) without 67CFR (2 req’d)
• Panel (2 req’d)
• 45 multiple panel(1) (4 req’d)

Mounting plate

• Pipestand with 67CFR
• Pipestand without 67CFR
• 45 multiple panel(1)

Cap screw

• 45 multiple panel(1) (2 req’d)
• 32 Hex nut
• Pipestand with 67CFR (4 req’d)
• Pipestand without 67CFR & panel (2 req’d)
• 45 multiple panel(1) (4 req’d)

Pipe clamp

Pipestand only

Elbow, for 3/8‐inch tubing

Pipestand & Panel W/67CFR 2 req’d

Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.Fisher and FlowScanner are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners. The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice. Emerson Automation Solutions Marshalltown, Iowa 50158 USA Sorocaba, 18087 Brazil Cernay, 68700 France Dubai, United Arab Emirates Singapore 128461 Singapore www.Fisher.com

References

• Emerson Training
• Fisher.com
• Contact Us | Emerson US
• Fisher.com

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