Keithley SourceMeter 3A 2420, Service Manual

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B-6 Command Reference
Table B-2
Recommended :CALibration:PROTected:SENSe parameter ranges
Note: Actual allowable parameter ranges are ±50% of full range for zero parameters, 75% of full
scale to 150% of full scale for full-range parameters, but ranges listed above should be observed
for optimum calibration.
:SOURCE
(:CALibration:PROTected:SOURce)
Purpose
To calibrate the source function.
Format
:cal:prot:sour <nrf>
Parameters
See Table B-3 for recommended parameter ranges.
Description
The :CAL:PROT:SOUR command calibrates the Model 2420 source 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:SOUR command for each parameter listed in Table B-3.
Note
When the Model 2420 receives this command, it will attempt to place the pa-
rameter into one of the four parameter ranges summarized in Table B-3, de-
pending on the active :SOUR:FUNC and range. If the parameter does not fit
into any of the four 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 if the active source is
programmed to a value within the selected parameter range, and that
:OUTP:STAT is ON. If the active source is not programmed to a value within the
parameter range (or if the source is in autorange or in standby), an error num-
ber -221, "Settings conflict" will be generated. If no error occurs, the active
source function/range point will be calibrated using the corresponding pa-
rameter.
Sense
range First parameter
(zero) Second parameter
(negative full scale) Third parameter
(positive full scale)
0.2V
2V
20V
60V 0.002 to +0.002
0.02 to +0.02
0.2 to +0.2
0.5 to +0.5 -0.18 to -0.22
-1.8 to -2.2
-18 to -22
-50 to -65 +0.18 to +0.22
+1.8 to +2.2
+18 to +22
+50 to +65
10
µ
A
100
µ
A
1mA
10mA
100mA
1A
3A
-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
-3E-2 to 3E-2 -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
-2.7 to -3.15 +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
+2.7 to +3.15