PS2520 Series Performance Verification
Handheld and Benchtop Instruments Basic Service
7
Performance Verification
This section contains procedures to verify that PS2520, PS2520G, PS2521, or
PS2521G power supplies perform as warranted. Implement the performance
verification procedures whenever the accuracy or function of your power supply
is in question.
The performance verification procedures provide a valid confirmation of
instrument electrical characteristics and function under the following conditions:
The instrument operates in a 20° to 30° C (68° to 86° F) ambient environ-
ment.
The instrument warms up for at least 20 minutes.
The cabinet remains installed on the instrument.
The PS2520 series performance verification consists of the checks listed in
Table 5.
Table 5: Performance Verification Checks
Basic Function
Voltage Set Accuracy
Current Set Accuracy
Overvoltage Protection (OVP) Accuracy
Constant Voltage Load Accuracy
Constant Voltage Source Accuracy
Constant Voltage Ripple and Noise Accuracy
Constant Current Load and Overcurrent Protection (OCP)
Accuracy
Constant Current Source Accuracy
There are two separate performance verification procedures for the
PS2520/2520G and PS2521/2521G series instruments. The PS2520/2520G
procedures begin on page 9; the PS2521/2521G procedures begin on page 32.
Use the procedure appropriate to your instrument.
You will find the recommended test equipment and initial settings for all
verification procedures listed on page 8.
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