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How to replace the relay – Dwyer UXF2 User Manual

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5.4. How to replace the relay

DO2 is a relay contact, with life of approximately 200,000 operations (at rated load).
Replace it before the end of its life based on the estimated number of operations.
Card relay type: RB104-DY (OEM MFG. FES Co. Ltd.)

[Replacement]
(1) Turn off power, and open the cover.
(2) From the socket, pull out the card relay as shown below.
(3) Position a new card relay into the socket. Depress the card with enough force to engage the card relay claws.
(4) Close the cover, and and turn on power as required.
(5) Set the maintenance mode to "STATUS OUTPUT", and verify the relay ON and OFF actions.

zTurn off power before opening the cover. Unit contains high voltage.

Relay removal procedure:

BULLETIN F-70