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11.6 POWER MODULE REPLACEMENT
Expected power module (part number 00753-9220-0001) life is two years at reference conditions. This section
describes the procedure for replacement of power module (part number 00753-9220-0001). The new power mod-
ule should stored in a safe place with a controlled environment until the Model 6081 is ready for live operation. For
replacement of the power module, follow these steps:
1. Unscrew the two long machine screws to remove the rear cover of the Model 6081. Separate the rear
cover from the central housing by manually prying the sections apart. Do not use screwdrivers or tools to
separate these housing parts. The parts are sealed with an o-ring.
2. Before installation, note the safety warning, disposal instructions and part information on the connection-
side label of the power module.
3. With the Model 6081 front display section facing away from you, align the power module pack with the
curved surface of the pack facing towards you and the small protruding connector facing away from you.
Make sure to align the power module and its keyed connector with the connection receptacle in the middle
of the instrument’s terminal block area.
4. With gentle pressure, insert the keyed connector on the power module into the receptacle (labeled Power
Module Connection on the drawing). The power module seats in the connection receptacle with an o-ring.
5. Confirm that the power module is fully inserted in the receptacle and properly aligned with the surrounding
terminal block.
6. Replace the rear cover of the Model 6081 with the two screws to secure it to the central housing. Tighten
screws and verify operation. Correct installation the rear cover will ensure that the power module is properly
secured to power the transmitter.
7. DO NOT RETURN SHIP THE USED POWER MODULE to Rosemount Analytical. Dispose of spent power
modules as a hazardous material in accordance with government regulations.
Note: A damaged or degraded o-ring may compromise the NEMA 4X rating of the unit even when the rear cover
is correctly installed. Please take care to protect the o-ring when removing and replacing the rear cover of the
transmitter.
MODEL 6081-P pH/ORP SECTION 11.0
MAINTENANCE