Test Procedure (Negative Voltage Compliance); Example: Positive Voltage Compliance - HP E1328A Service Manual

Test Procedure
(Negative Voltage
Compliance)
Example: Positive
Voltage Compliance
NOTE
Chapter 4
1. Set three jumpers on each channel to the V position
2. Connect DC Source and HP 3458A to Channel 1 (see Figure 4-1 )
3. Set non-cal mode on Channel 1 with CAL1:STAT OFF
4. Set Channel 1 to min voltage output (-12V) with VOLT1 MIN
5. Set DC source to -5V and measure channel output (in V)
6. Increase DC source output by -0.5V and measure new channel output
(in V)
7. Repeat step 6 until channel output stops increasing. If the output
voltage is -15.0V when the output stops increasing, the test passes.
8. Repeat steps 2 through 7 for Channels 2, 3, and 4 (use CALchan:
STAT OFF and VOLTchan MIN)
9. Remove power and disconnect test equipment
This program checks the MEASURED voltage output from the DAC
channel being tested. If the measured channel output is 15.0V when the
output stops increasing, the program generates a "test PASSED" indication.
If the measured channel output is < 15.0V when the output stops increasing,
the program generates a "test FAILED" indication.
To use this program for negative voltage compliance tests, change the
indicated lines as shown:
50 OUTPUT 70909;"VOLT"&VAL$(Chan)&" MIN"
60 Source = -4.5
90 Source = Source-.5
180 IF Value <= -15 THEN Pass$ = "PASSED"
190 IF Value > -15 THEN Pass$ = "FAILED"
Verification Tests 23