Keithley SourceMeter 2425, Service Manual

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Model 2425 Service Manual Calibration 2-19
Recommended calibration parameters
The maximum calibration command parameter ranges are: 75% to 150% of full scale for
positive and negative full scale calibration points; ± zero calibration steps have ±50% of
full scale for valid entry ranges. However, for optimum calibration, it is recommended that
you use calibration points within the ranges listed in Table 2-6 and Table 2-7. Note that
each sense range requires three parameters: zero, negative full scale, and positive full
scale. Similarly, each source range requires four parameters: two zero parameters, a posi-
tive full-scale parameter, and a negative full-scale parameter.
Table 2-6
Recommended :CALibration:PROTected:SENse parameter ranges
Sense
range First parameter
(zero)
Second parameter
(negative full scale)
Third parameter
(positive full scale)
0.2V
2V
20V
100V
10
μ
A
100
μ
A
1mA
10mA
100mA
1A
3A
-0.002 to +0.002
-0.02 to +0.02
-0.2 to +0.2
-1 to +1
-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
-0.18 to -0.22
-1.8 to -2.2
-18 to -22
-90 to -110
-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
+0.18 to +0.22
+1.8 to +2.2
+18 to +22
+90 to +110
+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