2600AS-901-01 Rev. B / September 2008 Return to Section Topics 20-7
Series 2600A System SourceMeter® Instruments Reference Manual Section 20: Calibration
Table 20-4
Model 2635A/2636A calibration steps
Parameter values
The full-scale parameters are actually 90% of full-scale as indicated in Table 20-2, Table 20-3, and
Table 20-5. Note that you cannot send a value of exactly 0 for the two zero parameters, but must
instead send a very small value, for example 1e-10 or -1e-10.
Sense modes
Table 20-2, Table 20-3, and Table 20-5 list sense modes for the calibration steps. Note that all
source and measure ranges are calibrated using the LOCAL sense mode. In addition, the 100mV
or 200mV source and measure ranges are also calibrated using the REMOTE sense mode, and
the 1mA and 1V or 2V source ranges are also calibrated using the CALA sense mode.
Model 2635A/2636A calibration steps
Function
1
Calibration steps
2
Calibration points
3
Sense mode
4
Voltage Source
and Measure
200mV
200mV
2V
2V
20V
200V
±1e-12, ±180mV
±1e-12, ±180mV
±1e-12, ±1.8V
±1e-12, ±1.8V
±1e-12, ±18V
±1e-12, ±180V
smuX.SENSE_LOCAL
smuX.SENSE_REMOTE
smuX.SENSE_LOCAL
smuX.SENSE_CALA
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
Current Source
and Measure
10nA
1nA
100pA
5
100nA
1μA
10μA
100μA
1mA
1mA
10mA
100mA
1A
1.5A
±1e-12, +/-9nA
±1e-12, +/-0.9nA
±1e-12, +/-90pA
±1e-12, ±90nA
±1e-12, ±0.9μA
±1e-12, ±9μA
±1e-12, ±90μA
±1e-12, ±0.9mA
±1e-12, ±0.9mA
±1e-12, ±9mA
±1e-12, ±90mA
±1e-12, ±0.9A
±1e-12, ±1.35A
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_CALA
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
smuX.SENSE_LOCAL
1. Calibrate only the source for the SENSE_CALA sense steps.
2. Steps must be performed in the order shown.
3. Do not use actual 0 values for zero calibration points. Send very small values such as ±1e-10.
Calibration polarities must also be set as shown in the procedures.
4. Output must be off before changing to the CALA sense mode.
5. For Current Measure only.
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