Constant Voltage (CV) verification
Voltage programming and readback accuracy
These tests verify that the voltage programming and the LAN or USB readback functions are within
specifications. Note that the readback values over the remote interface should be identical to those
displayed on the front panel, but with maximum resolution.
1.
Turn off the power supply using the AC line switch.
2.
Connect a DMM between the (+) and (–) terminals of the output.
3.
If you are using a computer to control the power supply, connect a LAN or USB cable from the
power supply to the PC.
4.
Turn on the power supply using the AC line switch.
Voltage programming accuracy
Step Front Panel SCPI
5. Set the instrument settings as described in the test record form under the Voltage
Programming and Readback
. See
Test Record Forms
for details.
VOLT 6; CURR 5 (for example for
the E36102A, 6 V, 5 A output)
6. Enable the output by pressing the Output ON key. OUTP ON
7. The output status should be CV and the output current should be close to zero.
8.
Record the voltage measured by the DMM and verify whether it is within the limits calculated.
Voltage readback accuracy
Step Front Panel SCPI
9. MEAS:VOLT? (for example for the
E36102A, 6 V, 5 A output)
10.
Record the voltage returned by the SCPI command query via Keysight Connection Expert, and verify
whether it is within the limits calculated.
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