2 Verification and Adjustments
60 Keysight E36200 Series Service Guide
7 Operate the electronic load in constant current mode and set its current to the
value described in Table 2-2.
Check that the front panel CV annunciator of the power supply remains lit. If it
turns to CC or UNREG, adjust the load so that the output current drops slightly
until the CV annunciator lights up. Record the output voltage reading on the
DMM as V
load
.
8 Operate the electronic load in open mode (input off). Record the output
voltage reading on the DMM immediately as V
noload
.
9 Take the difference between the DMM readings in step 7 and step 8 that is the
CV load regulation (V
load
– V
noload)
. Record the calculated value in the “Test
Record Forms” on page 74. The difference of the readings during the
immediate change should be within the specification limits.
CV line regulation
This test measures the change in output voltage that results from a change in AC
line voltage from the minimum to maximum value within the line voltage
specifications.
1 Turn off the power supply using the AC line switch.
2 Connect the power supply output with a DMM and an electronic load.
3 Connect a variable AC Source or Variac to the AC input, and set to an
appropriate line voltage for the power supply configuration.
4 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.
Table 2-2 CV load regulation instrument setting
DUT settings E-load settings Load regulation
Model Voltage (V) Current (A) Mode Current (A) Lower limit Upper limit
E36231A /
E36233A
30 Max Current 6.667 –5 mV 5 mV
10 Max Current 20 –3 mV 3 mV
E36232A /
E36234A
60 Max Current 3.333 –8 mV 8 mV
20 Max Current 10 –4 mV 4 mV
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