Keithley SourceMeter 2400, Service Manual, Page: 116 / 137

B-6 Command Reference
:SENSE
(:CALibration:PROTected:SENSe)
Purpose
To calibrate the sense function.
Format
:cal:prot:sens <nrf>
Parameter
See Table B-2.
Description
The :CAL:PROT:SENS command calibrates the Model 2400 sense func-
tion. To use this command, you must (1) program the source to the correct
value, (2) select the range being calibrated, and (3) send the
:CAL:PROT:SENS command for each parameter listed in Table B-2.
Note
When the Model 2400 receives this command, it will attempt to place the
parameter into one of the three parameter ranges summarized, in Table B-2,
depending on the active :SENS:FUNC and range. If the parameter does not
fit into any of the three allowed ranges, an error number -222, “Parameter
data out of range,” will be generated. Once the unit has successfully selected
the appropriate parameter range, it will then check to see if autorange for the
active :SENS:FUNC is enabled. If so, an error number -221, “Settings con-
flict,” will be generated. If no error occurs, the active sense function/range
point will be calibrated using the corresponding parameter.
Note that parameters for a given sense function and range may be sent in
any order. However, once one :CAL:PROT:SENS command executes, the
other two must also be executed, or an error number -200, “Execution
error,” will occur when the :CAL:PROT:SAVE command is processed at the
end of the calibration procedure.
Example
:CAL:PROT:SENS 2
Calibrate 2V sense range.
Table B-2
:CALibration:PROTected:SENSe parameter ranges
Sense
range First parameter
(zero)
Second parameter
(negative full scale) Third parameter
(positive full scale)
0.2V
2V
20V
200V
1µA
10µA
100µA
1mA
10mA
100mA
1A
-0.002 to +0.002
-0.02
to +0.02
-0.2 to +0.2
-2 to +2
-1E-8 to +1E-8
-1E-7 to +1E-7
-1E-6 to +1E-6
-1E-5 to +1E-5
-1E-4 to +1E-4
-1E-3 to +1E-3
-1E-2 to +1E-2
-0.18 to -0.22
-1.8
to -2.2
-18 to -22
-180 to -220
-0.9E-6 to -1.1E-6
-9E-6
to -11E-6
-90E-6 to -110E-6
-0.9E-3 to -1.1E-3
-9E-3
to -11E-3
-90E-3 to -110E-3
-0.9
to -1.1
+0.18 to +0.22
+1.8
to +2.2
+18 to +22
+180 to +220
+0.9E-6 to +1.1E-6
+9E-6
to +11E-6
+90E-6 to +110E-6
+0.9E-3 to +1.1E-3
+9E-3
to +11E-3
+90E-3 to +110E-3
+0.9
to +1.1