Microamps A Measurement - Fluke 902 User Manual

902
Users Manual

Microamps A Measurement

The A dc (G) function on the Meter is primarily for HVAC
flame rod testing. To test a heating system flame rod (refer
to Figure 3):
1. Turn the heating unit off and locate the wire between
the gas-burner controller and the flame rod.
2. Break this connection.
3.
Turn the rotary switch on the Meter to G.
4. Using alligator clips, connect test leads between the
flame sensor probe and control-module wire.
5.
Turn heating unit on and check the reading on the
Meter.
6.
Refer to the heating unit documentation for what the
desired reading should be.
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