Keysight E36300 Series - Constant Current (CC) Verification

Constant Current (CC) verification
Current programming and readback accuracy
These tests verify that the current programming and the LAN, GPIB or USB readback measurement 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 the current shunt directly across the output terminals. Connect the DMM directly across the current
shunt.
3.
If you are using a PC to control the power supply, connect a LAN, GPIB or USB cable from the power supply to
the PC.
4.
Turn on the power supply using the AC line switch.
Current programming accuracy
Step Front Panel SCPI
5. Set the instrument settings as described in the test record form
under
Current Programming and Readback
. See
Test Record
Forms
for details.
VOLT 6, (@<channel>; CURR 5, (@<channel>)
This is an example for the E36311A, 6 V, 5 A output.
6. Enable the output by pressing the Output ON key OUTP ON, (@<channel>)
7. The output status should be CC and the output voltage should be close to zero.
8.
Divide the voltage drop (DMM reading) across the current shunt by the shunt resistance to convert to amps.
9.
Record the current measured by the DMM and verify whether it is within the limits calculated.
Current readback accuracy
Step Front Panel SCPI
10. MEAS:CURR?, (@<channel>)
This is an example for the E36311A, 6 V, 5 A output.
11.
Record the current returned by the SCPI command query via Keysight Connection Expert, and verify whether it
is within the limits calculated.
Keysight E36300 Series Service Guide 33