Fisher 2500T Series User Manual

Type 2500
29
3. Install the machine screws (key 96) and, for stan-
dard relays, the washers (key 98), but do not tighten
the screws.
4. If the optional alignment tool (figure 18) is available,
insert the small end of the tool into the opening in the
relay body. If the tool does not engage in the hole of
the diaphragm assembly, move the parts slightly to
reposition the diaphragm so the alignment tool does
engage the hole in the diaphragm assembly. Do not
remove the alignment tool until the machine screws
(key 96) are tightened.
5. Tighten the machine screws (key 96) evenly. Re-
move the alignment tool, if one is used.
6. Install the inner valve, spring, gasket, and cover
plate (keys 87, 92, 94, and 95). Secure them with the
four machine screws (key 97).
7. Install the O-ring (key 90) on the orifice assembly
(key 88), and install the orifice assembly into the relay
casing.
8. Install the relay according to the Changing Relay
procedure.
9. Install a new gasket (key 22, figure 19), the re-
placement relay (key 34, figure 19), and secure them
with two mounting screws (key 43, figure 19).
10. Connect the tubing (key 11, figure 19) to the relay.
11. Test the relay deadband according to procedures
in this section.
12. If the deadband is within tolerance, go to the Cal-
ibration section.
Parts Ordering
Whenever corresponding with the sales representative
about this equipment, use the controller/transmitter
type number and the serial number. The serial number
is found on the nameplate (key 215, figure 19). When
ordering replacement parts, also state the complete
11-character part number of each part required as
found in the following parts list.
Parts List
Key Description Part Number
Controller Parts Kits
Type 2500 Controller Repair Kits
Contains keys 12, 15, 21, 24, 38, and
the flapper assembly
Standard temperature R2500 X00L32
High temperature R2500 X00H32
Key Description Part Number
Type 2503 Controller and Relay Repair Kit
Standard temperature only
For the controller, the kit contains
keys 12, 21, 22, 24, 38, and the
flapper assembly. For the relay, the
kit contains keys 86, 90, 91, and 94 R2503 X00022
Relay Repair Kits
Contains keys 22, 85, 86, 87, 88, 90, 91, 92,
93, 94, (99 and 100 high temperature only)
and the plug and wire assembly
Standard temperature RRELAYX0L12
High temperature RRELAYX0H12
Relay Replacement Kit
Contains keys 22, 43, and the relay assembly
Standard temperature RRELAYX0L22
High temperature RRELAYX0H22
Heat Insulator Retrofit Kit
Contains the heat insulator parts shown
in figure 16 and listed under Heat
Insulator in this parts list R2500XH0012
Common Controller/Transmitter Parts
(figure 19)
1 Case back 57A0953 X012
2 Case cover, aluminum 50B9454 X012
3 Door handle, pl steel 1C8972 25082
4 Door handle shaft (not shown), brass 1C8984 14012
5 Machine screw, steel 1C8958 X0022
6 Spring washer, stainless steel 1C8970 36032
7 Door hook, pl steel 1C8971 25082
8 Stop nut, pl steel 1C8959 X0012
9 Drive-lock pin, (2 req’d) 1C8991 X0022
10 Tubing assembly,
For all 2500 Series except Type 2503
Copper 1C9154 000A2
Stainless steel 1N7983 X0012
For Type 2503 only
Copper 1H3093 17052
Stainless steel 1H3093 X0012
11 Relay tubing
Copper 1H2738 000A2
Stainless steel 1N7984 X0012
12 Ball bearing assembly, Brass, pl 1C8983 000A2
13 Retaining ring, pl steel (2 req’d) 1A4658 28992
14 Gauge glass (2 req’d) 0T0192 06042
15 Gauge glass gasket, neoprene (2 req’d) 0T0191 04082
16* Bourdon tube assembly,
Brass
Type 2500 and 2500T
3 to 15 psig 32B1231 X012
6 to 30 psig 32B1231 X022
Type 2500S
0 to 20 psi 32B1233 X012
0 to 35 psig 32B1233 X022
Type 2503
0 to 20 psig 32B1234 X012
0 to 35 psig 32B1234 X022
Stainless steel
Type 2500 and 2500T
3 to 15 psig 32B1232 X032
6 to 30 psig 32B1232 X042
*Recommended spare parts

Fisher 2500T Series Specifications

General

Brand	Fisher
Model	2500T Series
Category	Controller
Language	English