Agilent 34970A/34972A Data Acquisition / Switch Unit
Agilent 34970A/34972A Data Acquisition / Switch Unit
Agilent 34970A/34972A Data Acquisition / Switch Unit
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Chapter 4 Calibration Procedures<br />
Relay Verification<br />
Tests 2 - 3:<br />
Make the connections to the 34908A as shown in the diagram below. Be<br />
sure to route your wiring for proper strain relief and install the module<br />
cover. Install the 34908A in slot 200 of the <strong>34970A</strong>/<strong>34972A</strong>. Open all<br />
channels on the module by performing a Factory Reset (press and<br />
select “Recall State”; press again and select “Factory Reset”).<br />
Configure Channel 01 as follows: DC volts, 10 volt range, and 5½ digits.<br />
Connections for 34908A Verification Tests 2 and 3<br />
Enable reading monitoring by pressing on the selected channel (or<br />
use the ROUTe:MON command). Record the 4-wire ohms measurements<br />
from the external DMM in the following table.<br />
External DMM Ohmmeter Connections<br />
Test<br />
#<br />
Channel<br />
Configured<br />
HI LO HI<br />
Sense<br />
LO<br />
Sense<br />
Measured Value<br />
Test<br />
Limit<br />
Relay<br />
Measured<br />
2 Ch 01 H Com L Com H Com L Com ________Ohms — —<br />
3 Subtract (Test 2 - Test 1) ________Ohms 2.00 K421<br />
118
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