ANALOG CONTROL
133
Note
The Ext-R
configuration is recommended for
safety reasons. In the event that the cables become
accidentally disconnected, the current output will
drop to zero. Under similar circumstances using
Ext-R , an unexpected high current would be
output.
If switches are used to switch between fixed
resistances, use switches that avoid creating open
circuits. Use short-circuit or continuous resistance
switches.
Connection
2260B
EXT-R
Analog
connector
8
9
Output
Terminal
2 core shielded
wire or twisted
pair
Pin9
→
EXT-R
Pin8
→
EXT-R
Wire shield → negative (
-) output terminal
Steps
1.
Connect the external resistance according to the
connection diagrams above.
2.
Set the F-91 (CC Control)
configuration settings to 2 for Ext-
R or 3 for Ext-R .
Page 120
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-
91=2 or 3).
Summary of Contents for Keithley 2260B Series
Page 14: ...2260B Series User Manual 10 Considerations 33 Grounding 36 ...
Page 43: ...OPERATION 39 Remove Test Sequence 99 Test Sequence Error Messages 100 ...
Page 52: ...2260B Series User Manual 48 Removal Reverse the procedure to remove the terminal covers ...
Page 111: ...CONFIGURATION 107 Note Power On and Calibration settings can only be set during power up ...