(Optional)
34904A Relay Contact Resistance Verification
This optional procedure uses an external DMM to make 4-wire ohms
measurements across the relay contacts on the 34904A.
1 Be sure to read “Plug-in Module Test Considerations” on page 87.
2 Connect coppers shorts from H to L on each of the eight columns
(COL1 through COL8) as shown below. Connect four dual banana
plugs to the four rows as shown below (ROW1 through ROW4).
Be sure to route your wiring for proper strain relief and install the
module cover. Install the 34904A in slot 200 of the 34970A.
Connections for 34904A Verification Tests
Chapter 4 Calibration Procedures
Relay Verification
102
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