Fluke 902 FE 902 Users Manual - Page 18

Microamps (A Measurement, Turn the rotary switch on the Meter - test leads

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902 Users Manual Microamps µA Measurement The µA 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. 12

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902
Users Manual
12
Microamps
µ
A Measurement
The
µ
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.