Agilent 34970A/34972A Data Acquisition / Switch Unit

Chapter 4 Calibration Procedures
Relay Verification
(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 97.
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/34972A.
Connections for 34904A Verification Tests
112