Fisher C1P User Manual

www.Fisher.com
Fisher
R
C1 Series Pneumatic Controllers and
Transmitters
Contents
Introduction 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 2. . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Educational Services 2. . . . . . . . . . . . . . . . . . . . . .
Installation 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Installation 2. . . . . . . . . . . . . . . . . . . . . .
Panel Mounting 6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Wall Mounting 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pipestand Mounting 6. . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting 6. . . . . . . . . . . . . . . . . . . . . . . .
Pressure Connections 6. . . . . . . . . . . . . . . . . . . . .
Supply Pressure 6. . . . . . . . . . . . . . . . . . . . . . . . .
Process Pressure 8. . . . . . . . . . . . . . . . . . . . . . . .
Vent Assembly 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Controller Operation 9. . . . . . . . . . . . . . . . . . . . . . . .
Proportional−Only Controllers 9. . . . . . . . . . . . . .
Adjustments 9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment: Set Point 9. . . . . . . . . . . . . . . . . .
Adjustment: Proportional Band 9. . . . . . . . . .
Calibration: Proportional−Only Controllers 10. .
Startup: Proportional−Only Controllers 12. . . . .
Proportional−Plus−Reset Controller 13. . . . . . . .
Adjustments 13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment: Set Point 13. . . . . . . . . . . . . . . . .
Adjustment: Proportional Band 13. . . . . . . . .
Adjustment: Reset 13. . . . . . . . . . . . . . . . . . . .
Adjustment: Anti−Reset Windup 14. . . . . . . .
Calibration 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration: Proportional−Plus−Reset
Controllers 14. . . . . . . . . . . . . . . . . . . . . . . . . .
Calibration: Anti−Reset Windup 16. . . . . . . . .
Startup: Proportional−Plus−Reset
Controllers 16. . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Gap Controllers 16. . . . . . . . . . . . . . .
Adjustments 16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment: Set Point 16. . . . . . . . . . . . . . . . .
Adjustment: Proportional Band 17. . . . . . . . .
Calibration: Differential Gap Controllers 17. . . .
Startup: Differential Gap Controllers 19. . . . . . .
Transmitter Operation 19. . . . . . . . . . . . . . . . . . . . .
Adjustments 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment: Zero 19. . . . . . . . . . . . . . . . . . . . . . .
Adjustment: Span 19. . . . . . . . . . . . . . . . . . . . . . .
W9263−1
Figure 1. Fisher C1 Controller Yoke−Mounted on Control
Valve Actuator
Calibration: Transmitters 19. . . . . . . . . . . . . . . . . .
Startup: Transmitters 20. . . . . . . . . . . . . . . . . . . . .
Principle of Operation 21. . . . . . . . . . . . . . . . . . . . . .
Proportional−Only Controllers 21. . . . . . . . . . . . .
Proportional−Plus−Reset Controllers 22. . . . . . .
Controllers with Anti−Reset Windup 22. . . . . . . .
Differential Gap Controllers 23. . . . . . . . . . . . . . .
Transmitters 23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Gauges 24. . . . . . . . . . . . . . . . . . . . . . .
Replacing Bourdon Tube 24. . . . . . . . . . . . . . . . .
Replacing Bellows Sensing Element 26. . . . . . . .
Changing Proportional or Reset Valve 27. . . . . .
Changing Anti−Reset Windup Differential
Relief Valve 27. . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Action 27. . . . . . . . . . . . . . . . . . . . . . . . .
Proportional−Only to a Differential
Gap Controller 27. . . . . . . . . . . . . . . . . . . . . . .
Reverse to Direct Action 28. . . . . . . . . . . . . . . . .
Relay Replacement 29. . . . . . . . . . . . . . . . . . . . . .
Changing Output Signal Range 30. . . . . . . . . . . .
Parts Ordering 31. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Instruction Manual
D103292X012
September 2009
C1 Controllers and Transmitters

Fisher C1P Specifications

General

Brand	Fisher
Model	C1P
Category	Transmitter
Language	English

Summary

Installation Guidelines

Detailed Specifications and Adjustments

Adjustment Procedures: Proportional Band, Reset, Zero/Span

Guides for adjusting proportional band, reset, zero, and span settings.

Instrument Mounting Procedures

Pressure Connections

Supply Pressure Requirements

Proportional-Only Controller Operation

Adjustments: Set Point and Proportional Band

How to adjust the set point and proportional band.

Proportional-Only Controller Startup

Proportional-Plus-Reset Controller Operation

Adjustments: Set Point, Proportional Band, and Reset

How to adjust set point, proportional band, and reset.

Calibration Procedures

Calibration procedures for proportional-plus-reset controllers.

Differential Gap Controller Operation

Adjustments: Set Point and Proportional Band

Adjusting set point and proportional band for differential gap controllers.

Transmitter Operation and Calibration

Adjustments: Zero and Span

Setting the zero and span for transmitter output.

Calibration and Startup

Procedures for calibrating and starting up transmitters.

Maintenance and Safety Precautions

Action and Configuration Changes

Relay and Signal Range Modifications