PS280 and PS283 Performance Verification
Handheld and Benchtop Instruments Basic Service
5
Performance Verification
This section contains procedures to verify that PS280 or PS283 power supplies
perform as warranted. Implement the performance verification procedures
whenever the accuracy or function of your instrument is in question.
The performance verification procedures provide a valid confirmation of
instrument electrical characteristics and function under the following conditions:
H The instrument operates in a 20
_ to 30_ C (68_ to 104_ F) ambient
environment.
H The instrument warms up for at least 20 minutes before the verification
begins.
H The cabinet remains installed on the instrument.
The PS280 and PS283 performance verification consists of the checks listed in
Table 5.
Table 5: Performance Verification Checks
Constant Current Load Regulation Check
MASTER Current Regulation (INDEP mode)
SLAVE Current Regulation (INDEP mode)
MASTER Current Regulation (PARALLEL mode)
Constant Current Ripple and Noise Check
MASTER Current Ripple
SLAVE Current Ripple
Constant Voltage Regulation Check
MASTER Voltage Regulation
SLAVE Voltage Regulation
5 V Fixed Voltage Regulation
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