C1 Controllers and Transmitters
Instruction Manual
September 2009
36
GE31718−A
E1072
NOTES:
ARROW DOWN—RELIEVES ON DECREASING OUTPUT (OUTPUT @ SUPPLY DURING SHUTDOWN)
ARROW UP—RELIEVES ON INCREASING OUTPUT (OUTPUT @ ZERO DURING SHUTDOWN)
KEYS 80, 81, AND 82 ARE NOT SHOWN
PROPORTIONAL-PLUS-RESET CONTROLLER WITH DIFFERENTIAL
RELIEF VALVE ASSEMBLY FOR ANTI-RESET WINDUP
1
1
2
2
SPRING−OUT CLEANING WIRE
RELAY ASSEMBLY
Figure 22. Typical Reverse Acting Fisher C1 Proportional−Plus−Reset Assembly (continued)
(Refer to figure 25 for the Front View of the Case & Cover Assembly)
Key Description Part Number
71* Differential−Pressure Bellows (input)
Brass
0−200 mbar (0−80 inches wc) 2L3790000A2
0−0.7 bar (0−10 psi) 2L3791000A2
0−1.4 bar (0−20 psi) 2L3792000A2
Stainless steel,
0−2.0 bar (0−30 psi) 2L3793000A2
71K Machine Screw
(4)
, steel pl
bellows sensing instruments only (2 req’d) 1A331928982
71L* Bearing
(4)
bellows sensing instruments only (2 req’d) 1L379546202
71M* Link
(4)
bellows sensing instruments only 1L379641012
72* Lock Spring, 304L SST GE32298X012
73 Proportional Band Adjustment Knob, steel/PPS
74 Machine Screw
(1)
, 18−8 SST (2 req’d)
75* Gasket
(1)
Std Temp, chloroprene (2 req’d) 1D397003012
High Temp, silicone (2 req’d) 1N873604142
76* Nozzle O−Ring
(1)
,
Std Temp, nitrile 1E222606992
High Temp, fluorocarbon 1N838706382
Key Description Part Number
Note
A total of 5 O−rings (key 77) are used. 1
O−ring is used under the sealing screw (key
49), 1 O−ring is used under the reversing
block screw (key 50), 1 O−ring is used
between the reversing block ass’y (key 52)
and the calibration adjuster (key 36), and 1
O−ring is used in the recessed area under the
head of each of the bellows screws (key 53).
77* O−Ring,
Std Temp, nitrile (5 req’d) 1D687506992
High Temp, fluorocarbon (5 req’d) 1N430406382
Note
Keys 78 through 82 are used for
Proportional−Plus−Reset controllers only.
78 Tubing Assembly, SST
79 Tubing Assembly, SST
80 Anti−Reset Windup Cover (not shown)
81* O−Ring (not shown) (2 req’d) 1C853806992
*Recommended spare parts
1. This part is included in the Controller Repair Kit.
3. If ordering the bellows (key 71) to change the range of a gauge pressure
controller, also order the appropriate bellows spring (key 104). Also order
keys 101, 102, and 103 if you do not have them.
4. This part is part of the bellows assembly, key 71.
To Next Page
Loading...