Ametek Combustion Analyzer WDG-VC OC1C

Analyzer opened and components exposed

Isolation valves on the inlet and outlet of the process closed

Cell furnace wires disconnected

Thermocouple assembly removed from the furnace

Swagelok nut at the bottom of the furnace loosened

Swagelok nut below the flow sensor loosened

Warning: Only perform this procedure on Combustibles/Methane Units

Remove the Combustibles Block Heater by sliding it out

Tighten the hex screw into place

Reconnect the wires on the Sensor board

Sign off on the block heater replacement

Warning: Always turn off power before cleaning the enclosure

Choose the type of service done

CAUTION: Disconnect power from the analyzer and control unit and allow it to cool before replacing its parts

Analyzer power disconnected and cooled down?

Isolation valves on the inlet and outlet of the process closed?

NOTE: There is only one heater in the O, version. There are two heaters in the Combustibles/Methane version of the WDG-V

Remove the speed clip from the mounting tab. Use needle-nose pliers to remove the clip

Remove the box heater by sliding it out

Attach a new speed nut to the post

Reconnect the wires on the Sensor board

Sign off on the box heater replacement

NOTE: The Combustibles Detector will always face outward, and the Methane detector will always face inward from the factory.

Methane Detector (Blue and White) wires disconnected on the Sensor board

Two (2) 4.0 mm hex screws that hold the Methane Detector loosened and detector removed from its housing

New o-ring used when the Methane Detector has been removed

New Methane detector installed in place, screws aligned on the block, and detector element ends not damaged while inserting the assembly

Detector leads reconnected to the Sensor board

Sign off on the Methane Detector Replacement