Keithley 2260B-30-72 User Manual page 110

2260b series, 360w and 720w multi-range programmable dc power supplies
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Note
Connection
Steps
The Ext-R
configuration is recommended for
safety reasons. In the event that the cables become
accidentaly disconnected, the voltage output will
drop to zero. Under similar circumstances using
Ext-R , an unexpected high voltage would be
output.
If swtiches are used to switch between fixed
resistances, use switches that avoid creating open
circuits. Use short-circuit or continous resistance
switches.
EXT-R
2 core shielded
wire or twisted
pair
Pin6 → EXT-R
Pin7 → EXT-R
Wire shield → negative (-) output terminal
1. Connect the external resistance according to the
connection diagrams above.
2. Set the F-90 (CV Control)
configuration settings to 2 for Ext-
R
or 3 for Ext-R
Be sure to cycle the power after the power on
configuration has been set.
3. Press the Function key and confirm
the new configuration settings (F-
90=2 or 3).
ANALOG CONTROL
Power
supply
6
Analog
connector
7
Output
Terminal
.
Page 96
107

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