Emerson Fisher 646- User Manual

Emerson Fisher 646

Emerson Fisher 646– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – Instruction Manual; INMETRO
  • Page 3 – Mounting Position; may; Figure 2. Output‐Time Relationships for Fisher 646 Transducer; Description
  • Page 4 – This product; Specifications; Specifications for the 646 transducer are listed in table 1.; Educational Services; Installation; WARNING
  • Page 5 – Note; No special conditions for safe use.
  • Page 6 – ATEX; Standards Used for Certification
  • Page 7 – Type n; IECEx; Conditions of Certification; Substitution of components may impair intrinsic safety.; Flameproof; Disconnect power before opening.
  • Page 8 – Ta; Mounting
  • Page 9 – Figure 3. Dimensions and Connections; Pneumatic Connections
  • Page 10 – Diagnostic Connections; Figure 4. Diagnostics Hookup for the Fisher 646 Transducer; Vent
  • Page 11 – Figure 5. Typical Field Wiring Diagram; Figure 6. Equivalent Circuit
  • Page 12 – Operating Information; Calibration
  • Page 13 – Refer to figure 7 for adjustment locations.; Principle of Operation; Figure 8. Fisher 646 Transducer Schematic
  • Page 14 – Maintenance; actuator cannot suddenly open or close the valve.; Troubleshooting
  • Page 15 – electrical connection procedures in the Installation section).; Pneumatic; build up to the approximate value of the supply pressure.; Converter Module Replacement; Removal; Refer to figure 10 for key number locations.; Replacement; Maximum torque is 0.45 N
  • Page 16 – Relay Maintenance; Figure 9. Valve Plug, Inner Valve Spring and Body Plug Assembly
  • Page 17 – Perform the procedures in the Calibration section.
  • Page 18 – Parts Ordering; Parts Kits
  • Page 19 – Figure 10. Fisher 646 Transducer Assembly
  • Page 20 – Mounting Parts; Yoke Mounting With 67CFR Filter Regulator; Yoke Mounting w/o 67CFR Filter Regulator
  • Page 21 – Pipestand and Panel Mounting
  • Page 22 – Loop Schematics
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Fisher

r

646 Electro‐Pneumatic Transducer

Contents

Introduction

1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scope of Manual

1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description

3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Specifications

4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Educational Services

4

. . . . . . . . . . . . . . . . . . . . . . . . .

Installation

4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hazardous Area Classifications and

Special Instructions for “Safe Use” and
Installation in Hazardous Locations

5

. . . . . . . . . . .

CSA

5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

FM

6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ATEX

6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

IECEx

7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting

8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pneumatic Connections

9

. . . . . . . . . . . . . . . . . . . . . .

Supply Pressure Requirements

9

. . . . . . . . . . . . .

Diagnostic Connections

10

. . . . . . . . . . . . . . . . . .

Vent

10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Connections

10

. . . . . . . . . . . . . . . . . . . . . . .

Operating Information

12

. . . . . . . . . . . . . . . . . . . . . . . .

Calibration

12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required

12

. . . . . . . . . . . . . . . . . . . . .

Calibration Procedure

12

. . . . . . . . . . . . . . . . . . . .

Principle of Operation

13

. . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting

14

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Converter Module Replacement

15

. . . . . . . . . . . . . .

Relay Maintenance

16

. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1. Fisher 646 Electro‐Pneumatic Transducer
Mounted on a Sliding‐Stem Actuator

W6783‐1/IL

Parts Ordering

18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Kits

18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts List

18

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loop Schematics

22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Scope of Manual

This instruction manual provides installation, operation, maintenance, and parts ordering information for the Fisher
646 transducer. Refer to separate manuals for instructions covering equipment used with the transducer.

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 Process Management sales

office before proceeding.

Instruction Manual

D101351X012

646 Transducer

January 2015

"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.

Summary

Page 2 - Instruction Manual; INMETRO

Instruction Manual D101351X012 646 Transducer January 2015 2 Table 1. Specifications Input Signal 4-20 mA DC, constant current with 30 VDC maximumcompliance voltage Equivalent Circuit The 646 equivalent circuit is a series circuit consistingof a constant voltage drop (battery) of approximately2.1 VD...

Page 3 - Mounting Position; may; Figure 2. Output‐Time Relationships for Fisher 646 Transducer; Description

Instruction Manual D101351X012 646 Transducer January 2015 3 Table 1. Specifications (Continued) Mounting Position Any position is acceptable for standard pipestand,panel, or actuator mounting. For weatherproofhousing, mount the transducer so the vent can drain. Approximate Weight (Transducer Only) ...

Page 4 - This product; Specifications; Specifications for the 646 transducer are listed in table 1.; Educational Services; Installation; WARNING

Instruction Manual D101351X012 646 Transducer January 2015 4 CAUTION Dropping or rough handling of the transducer can cause damage to the converter module resulting in a shifted output or aminimum output. WARNING This product does not meet third party approvals (CSA, FM, ATEX, or IECEx) for use with...

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