Instruction Manual
D200129X012
2506/2516 Receiver/Controller
June 2017
22
3. Secure the screws (key 96) and replace the tubing.
4. Check all tubing connections and the bellows screws for leaks. Tighten as necessary and proceed to the Calibration
section.
5. If a bellows assembly (key 65) with a different range is installed, replace the gauges (key 20 or 135) with those with
an appropriate measurement capability.
Changing the Relay
Remove the relay to replace it.
Removal
1. Disconnect the tubing (key 11) from the relay.
2. Remove two relay mounting screws, the relay, and the relay gasket (keys 43, 34, and 22).
Replacement
1. Install a new gasket (key 22), the replacement relay (key 34), and secure with two mounting screws (key 43).
2. Connect the tubing (key 11) to the relay.
3. See the testing relay deadband procedures in this section.
4. If the deadband is within tolerance, see the Calibration section.
Changing Proportional or Reset Valve
1. Disconnect the appropriate tubing(s) from the proportional or reset valve.
2. Removing the valve assembly:
a. Remove the proportional valve assembly by unscrewing it from the relay base. Install the replacement assembly.
b. Remove the reset valve assembly by unscrewing the two machine screws (key 182, not shown) located behind
the reset valve on the back of the case. Install the replacement assembly.
Parts Ordering
Whenever corresponding with your Emerson sales office or Local Business Partner, include the receiver/controller type
number and the serial number. The serial number can be found on the nameplate.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions should
not, under any circumstances be used in any Fisher instrument. The use of components not manufacture by Emerson
Automation Solutions may void your warranty, might adversely affect the performance of the instrument, and could cause
personal injury or property damage.
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