Tektronix PS280 Service & Reference Guide

Adjustment Procedures
• Connect the digital multimeter to the + and - terminals of the
Slave output.
b. Make the zero volts adjustment:
• Adjust VR302 for a reading of-15 mV, within ± 15 mV on the
multimeter.
c. Set up the equipment:
• Set the digital multimeter to measure a DC voltage of ± 35 V.
• Set the SLAVE VOLTAGE control to maximum (fully clockwise).
d. Make the maximum volts adjustments:
• Adjust VR301 for a reading of 31.5 V on the multimeter.
• Adjust VR601 until the Laboratory DC Power Supply meter dis-
plays 31.5V.
3. Adjust the master current output:
a. Set up the equipment:
• Disengage both TRACKING mode switches (both switches out) so
that the power supply is in the INDEPendent operating mode.
• Set the Master AMPS/VOLTS meter selection switch to AMPS.
• Set the digital multimeter to measure a DC current of 2 A.
•, Connect the digital multimeter to the + and - terminals of the
Master output. .
• Set the MASTER CURRENT control to maximum (fully clockwise).
b. Make the current adjustments:
• Adjust VR103 for a reading of 1.05 A (PS283) or 2.1 A (PS280) on
the multimeter.
• Adjust VR202 until the Laboratory DC Power Supply meter dis-
plays 1.05 A (PS283) or 2.1 A (PS280).
4. Adjust the slave current output:
a. Set up the equipment:
• Disengage both TRACKING mode switches (both switches out) so
that the power supply is in the INDEPendent operating mode.
• Set the Slave AMPS/VOLTS meter selection switch to AMPS.
• Set the digital multimeter to measure a DC current of 2 A.
• Connect the digital multimeter to the + and - terminals of the
Slave output.
• Set the SLAVE CURRENT control to maximum (fully clockwise).
5-4 REV AUG1991 Adjustment

Tektronix PS280 Specifications

General

Brand	Tektronix
Model	PS280
Category	Power Supply
Language	English