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Series 2268 850-Watt DC Power Supplies
Keithley Instruments
28775 Aurora Road
Quick Reference Guide
Cleveland, Ohio 44139
1-800-935-5595
http://www.keithley.com
Front panel overview
The Series 2268 850-Watt Power Supplies are equipped with a rotary Adjust/Enter control to provide a
streamlined front panel for faster setup. Set voltage and current quickly and easily using the rotary Adjust/Enter
control and the 9-position Mode control. The information provided in this Quick Reference Guide is for basic
usage of the front panel and for understanding the menu system. See Menu system (on page 3) for a map of
the front-panel menu system. For complete information on the Series 2268, refer to the Series 2268 850-Watt
DC Power Supply Reference Manual (part number 2268S-901-01).
Figure 1: Series 2268 front-panel controls, displays, and indicators
Number Description
1 Rotary Adjust/Enter control
2 Constant voltage mode LED
3 Model identification label
4 Output voltage display
5 Constant current mode LED
6 Output current display
7 Alarm indicator LED
8 Output on/off Button
9 AUX on/off Button
10 9-position mode control
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Series 2268 850-Watt DC Power Supplies Quick Reference Guide
Figure 2: Series 2268 rotary adjust/enter control
Control Description
VOLTS Voltage programming
AMPS Current programming
FLD Foldback
PRT Protection
SAV Save user setting memory locations
RCL Recall user setting memory locations
CAP Current analog programming
VAP Voltage analog programming
PGM Programming
General procedures for setting up features