PS2520 Series Adjustment Procedures
60
Handheld and Benchtop Instruments Basic Service
Instrument
front
VR501
VR601
Figure 13: VR501, VR601 Adjustment Location
13. Enter the DMM reading on the keypad (in amperes); then press (
). Verify
that the power supply readout displays cL2F, indicating that the current
offset calibration is complete.
14. Set the DMM to the 10 A range and press (
) on the power supply. Verify
that the power supply readout displays cL21, indicating current full-scale
calibration.
15. Enter the DMM reading on the power supply keypad and press (
). Verify
that the power supply readout displays cL2F, indicating that the current
full-scale calibration is complete.
16. Disconnect the DMM from the power supply.
17. Press (
) on the power supply and verify that the readout displays cL30,
indicating overvoltage protection offset calibration. Wait 10 seconds and
verify that the readout displays cL31, indicating that the overvoltage
protection full-scale calibration is running.
18. Wait another 10 seconds for the readout to return to normal. The calibration
is complete.
Output 2. Use the following steps to calibrate OUTPUT 2.
1. Press (SHIFT) OUT 2; verify that the “2” indicator lights up on the display.
2. Perform steps 2 through 5 of the Output 1 procedure above.
3. Connect the DMM positive and negative leads to the corresponding front
panel OUTPUT 2 (+) and (–) terminals.
4. Perform steps 7 through 18 of the Output 1 procedure above.
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