Keithley 2601B Reference Manual page 764

Appendix B: Calibration
Step sequence
Adjustment steps must be performed in a specific sequence. See the following table that is specific
table to your model. Note that all steps are performed using 2-wire (local sensing) except as noted.
Adjustment of each range is performed as a four-point calibration:
• + ZERO
• + FULL SCALE
• − ZERO
• − FULL SCALE
Before performing the adjustment steps, refer to
(on page B-21).
Model 2601B/2602B/2604B calibration steps
1
Function
Voltage Source
and Measure
Current Source and Measure
1. Calibrate only the source for the CALA sense steps.
2. Steps must be performed in the order shown.
3. 10 A range for changing calibration of range only and is not available for normal use.
4. Do not use actual 0 values for zero calibration points. Send very small values such as ±1e-30. Calibration polarities must also be
set as shown in the procedures.
5. Output must be off before changing to the CALA sense mode.
B-22
Series 2600B System SourceMeter® Instrument Reference Manual
Parameter values
2
Calibration steps Calibration points
100 mV ±1e-30, ±90 mV
100 mV ±1e-30, ±90 mV
1 V ±1e-30, ±0.9 V
1 V ±1e-30, ±0.9 V
6 V ±1e-30, ±5.4 V
40 V ±1e-30, ±36 V
100 nA ±1e-30, ±90 nA
1 μA ±1e-30, ±0.9 μA
10 μA ±1e-30, ±9 μA
100 μA ±1e-30, ±90 μA
1 mA ±1e-30, ±0.9 mA
1 mA ±1e-30, ±0.9 mA
10 mA ±1e-30, ±9 mA
100 mA ±1e-30, ±90 mA
1 A ±1e-30, ±0.9 A
3 A ±1e-30, ±2.4 A
3
±1e-30, ±2.4 A
10 A
(on page B-21) and Sense modes
4 5
Sense mode
smuX.SENSE_LOCAL
smuX.SENSE_REMOTE
smuX.SENSE_LOCAL
smuX.SENSE_CALA
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
smuX.SENSE_LOCAL
2600BS-901-01 Rev. B / May 2013