Instruction Manual
D200124X012
2500 and 2503 Controllers/Transmitters
June 2017
40
Key
Description
21*
Cover gasket, chloroprene
22*
Relay gasket
Standard temperature, chloroprene
High temperature, silicon
23
Relay base
24*
Relay base gasket (not shown)
Standard temperature, chloroprene
High temperature, silicon
25
Flexure strip, stainless steel,
26
Flexure strip nut, pl steel (2 req'd)
27
Flexure strip base, pl steel
28
Level set arm, pl steel
29
Drivelok pin, pl steel
30
Flapper base, brass, pl
31
Shaft clamp screw, SST (2 req'd for C version only,
1 req'd for all others)
32
Flapper, stainless steel
33
Alignment screw, brass, pl
34
Relay assembly
For all 2500 controllers/transmitters except 2503
Standard temperature
High temperature
Corrosive service
2503 only
Standard temperature
High temperature
35
Level adjustment assembly (controllers only)
35
Zero adjustment assembly (transmitters only)
36
Proportional band adjustment assembly
(except transmitters and 2503 controllers, see key 90)
Standard and high temperature
Corrosive service
37
67CFR regulator
38A* Filter gasket (not shown)
Standard temperature, chloroprene
High temperature, silicon
38B
Spacer, aluminum (not shown)
38C* O‐ring (not shown)
Standard temperature, nitrile
High temperature, fluoroelastomer
39
Cap screw (not shown), pl steel (2 req'd)
Key
Description
40
Hex nut, pl steel
(2 req'd for C versions, 1 req'd for all others)
41
Screw, pl steel (2 req'd for C versions only)
42
Machine screw, pl steel (8 req'd)
43
Machine screw, pl steel (2 req'd)
44
Machine screw, pl steel (6 req'd)
45
Machine Screw, pl steel (2 req'd)
46
Machine Screw, pl steel (4 req'd)
47
Spring (not shown), stainless steel
48
Cap screw, pl steel (4 req'd)
49
Machine screw, pl steel (13 req'd)
50
Screen, N04400
51
Pointer assembly (C versions only),
Stainless steel/brass, pl
52
Washer (C versions only), steel (2 req'd)
53
Base plate (C versions only), aluminum
54
Front plate (C versions only), aluminum
73
Pipe plug (2503 only), brass (not shown)
90
Specific gravity adjustment assembly
Standard and high temperature
Corrosive service
215
Nameplate
Note
All Heat Insulator parts are included in the Heat Insulator Parts Kit.
35
Heat Insulator Assembly, stainless steel
36
Shaft Coupling, stainless steel
37
Shaft extension, N05500
38
Set screw, stainless steel (2 req'd)
39
Cap screw, pl steel (4 req'd)
40
Cap screw, pl steel (4 req'd)
53
Washer, carbon steel, pl (4 req'd)
*Recommended spare parts
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Singapore 128461 Singapore
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