Tektronix TAS 250 Technical Reference

PS2520 Series Adjustment Procedures
Handheld and Benchtop Instruments Basic Service
65
cL10 Voltage Offset Calibration. To calibrate the voltage offset, enter the DMM
reading on the power supply keypad and press (
). The readout will return to
normal when the calibration is complete.
cL11 Voltage Full Scale Calibration. To calibrate the full-scale voltage, adjust
VR601, VR501, or VR401 using the instructions in Table 14. Refer to Figures
13 and 14 for the adjustment locations.
Enter the DMM reading on the power supply keypad and press ( ). The readout
will return to normal when the calibration is complete.
Table 14: Voltage Full-scale Adjustment (Partial Calibration)
Instrument Model To Cal. OUTPUT 1 To Cal. OUTPUT 2 To Cal. OUTPUT 3
PS2520/PS2520G Adjust VR601 for a
DMM reading of
37.00 V
Adjust VR501 for a
DMM reading of
37.00 V
Adjust VR401 for a
DMM reading of 6.5 V
PS2521/PS2521G Adjust VR601 for a
DMM reading of
21.00 V
Adjust VR601 for a
DMM reading of
21.00 V
Adjust VR601 for a
DMM reading of 6.5 V
cL20 Current Offset Calibration. To calibrate the current offset, enter the DMM
reading (in amperes) on the power supply keypad and press (
). The readout
will return to normal when the calibration is complete.
cL21 Current Full Scale Calibration. To calibrate the full-scale current, enter the
DMM reading on the power supply keypad and press (
). The readout will
return to normal when the calibration is complete.
cL30 Overvoltage Protection: Offset Calibration. Wait 10 seconds for the calibra-
tion to complete.
cL31 Overvoltage Protection: Full Scale Calibration. Wait 10 seconds for the
calibration to complete.
cL40 Parallel Output: Current Offset Calibration. To calibrate the parallel output
current offset, perform the following steps.
1. Verify that the “PARA” indicator lights up on the display.
2. Enter the DMM current reading on the power supply keypad and press (
).
The readout will return to normal when the calibration is complete.

Tektronix TAS 250 Specifications

General

Brand	Tektronix
Model	TAS 250
Category	Test Equipment
Language	English