Fisher 4195 KB Series - Page 2

4195KA, KB, and KC Series
1–2
Contents (continued)
Remote Set Point (suffix letter M)
Operation 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Auto/Manual Station (suffix letter E)
Operation 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . .
External Feedback Operation 4–12. . . . . . . . . . . . .
5. Maintenance
Inspection and Maintenance 5–1. . . . . . . . . . . . . . . .
Troubleshooting 5–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Common Controller Parts 5–1. . . . . . . . .
Replacing the Process Pressure Scale 5–1. . . . . .
Replacing the Relay 5–5. . . . . . . . . . . . . . . . . . . . . .
Replacing the Case and Cover 5–5. . . . . . . . . . . .
Replacing the Gauges 5–6. . . . . . . . . . . . . . . . . . . .
Replacing the Supply Gauge, Proportional,
Reset, and Reset Valve, Tubing
Assemblies 5–6. . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Proportional Band Adjustment
Knob, Nozzle Assembly, and Set Point
Beam Assembly 5–6. . . . . . . . . . . . . . . . . . . . . . .
Replacing the Flapper Assembly and
Flapper Flexure Pivot Assembly 5–10. . . . . . . .
Replacing the Proportional or Reset
Bellows 5–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Reset Restriction Valve
(4195KB Series) 5–15. . . . . . . . . . . . . . . . . . . . .
Replacing the Rate/Reset Valve Assembly
(4195KC Series) 5–15. . . . . . . . . . . . . . . . . . . . .
Replacing the Anti-Reset Windup
(suffix letter F) Differential Relief Valve 5–16. .
Replacing the Anti-Reset Windup
(suffix letter F) Relief Valve Tubing
Assembly 5–16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Bourdon Tube Controller Maintenance
and Calibration 5–16. . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Bourdon Tube 5–16. . . . . . . . . . . . .
Replacing Bourdon Tube Controller Links 5–17. .
Replacing Link 1 5–17. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 2 5–18. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 3 5–18. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 4 5–19. . . . . . . . . . . . . . . . . . . . . . .
Bourdon Tube Travel Stop Installation
and Adjustment 5–20. . . . . . . . . . . . . . . . . . . . . .
Bourdon Tube Controller Calibration:
Zero and Span Adjustment 5–21. . . . . . . . . . . .
Capsular Element Controller Maintenance
and Calibration 5–23. . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Capsular Element
Assembly 5–23. . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Capsular Element Parts 5–23. . . . . . . .
Replacing the Long Pivot Assembly 5–23. . . . . .
Replacing the Short Pivot Assembly 5–24. . . . . .
Replacing the Process Drive Flexure 5–24. . . . .
Replacing the Process Tubing 5–24. . . . . . . . . . .
Replacing Capsular Element
Controller Links 5–25. . . . . . . . . . . . . . . . . . . . . .
Replacing Link 1 5–25. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 2 5–25. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 3 5–26. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 4 5–26. . . . . . . . . . . . . . . . . . . . . . .
Replacing Link 5 5–27. . . . . . . . . . . . . . . . . . . . . . .
Capsular Element Controller
Maintenance Calibration 5–27. . . . . . . . . . . . . . .
Precalibration Procedure 5–27. . . . . . . . . . . . . . .
Aligning the Drive Bracket Assembly 5–27. . . . .
Setting the Travel Stops 5–28. . . . . . . . . . . . . . . .
Aligning the Linkage 5–28. . . . . . . . . . . . . . . . . . .
Capsular Element Controller
Zero and Span Adjustment 5–29. . . . . . . . . . .
Remote Set Point (suffix letter M)
Maintenance 5–30. . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Remote Set Point
Assembly 5–30. . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Remote Set Point
Assembly Parts 5–30. . . . . . . . . . . . . . . . . . . . . .
Replacing Pivot Assembly A (key 114) 5–30. . . .
Replacing Pivot Assembly B (key 115) 5–32. . . .
Replacing the Drive Flexure 5–32. . . . . . . . . . . . .
Replacing the Remote Set Point Tubing 5–32. .
Replacing Link A 5–32. . . . . . . . . . . . . . . . . . . . . .
Replacing Link B 5–32. . . . . . . . . . . . . . . . . . . . . .
Remote Set Point (suffix letter M)
Maintenance Calibration 5–33. . . . . . . . . . . . . . . .
Precalibration Procedure 5–33. . . . . . . . . . . . . . . . .
Aligning the Flexures 5–33. . . . . . . . . . . . . . . . . . . .
Setting the Travel Stops 5–33. . . . . . . . . . . . . . . . .
Aligning the Linkage 5–33. . . . . . . . . . . . . . . . . . . . .
Remote Set Point Zero and Span
Adjustment 5–34. . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Set Point Linearity Adjustment 5–34. . . .
Auto/Manual Station (suffix letter E)
Maintenance 5–35. . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Auto/Manual Station 5–35. . . . . . . .
Replacing the Switch Body Assembly,
Lever O-Ring, Switch Body O-Ring,
and Tubing Assembly 5–35. . . . . . . . . . . . . . . . .
Replacing the Loader Range Spring,
Diaphragm Assembly, Ball Seat,
Tubing, and Ball 5–36. . . . . . . . . . . . . . . . . . . . . .
Replacing the Loader Valve Plug and
Valve Plug Spring 5–37. . . . . . . . . . . . . . . . . . . .
6. Parts
Parts Ordering 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Abbreviations Used In The Parts List 6–1. . . . . . .
Controller Common Parts 6–1. . . . . . . . . . . . . . . . .
Process and Set Point Indicator
Assembly 6–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicator Assembly 6–6. . . . . . . . . . . . . . . . . . . . . . .
Capsular Element Assembly 6–7. . . . . . . . . . . . . .
Type 83U Relay 6–7. . . . . . . . . . . . . . . . . . . . . . . . .
Remote Set Point Assembly
(suffix letter M) 6–7. . . . . . . . . . . . . . . . . . . . . . . .
Auto/Manual Station (suffix letter E) 6–8. . . . . . . .