Calibration Adjustment Overview - Keithley 2601B Reference Manual

Appendix B: Calibration
Recommended calibration adjustment equipment
The table below contains the recommended equipment for the calibration adjustment procedures.
You can use alternate equipment as long as that equipment has specifications equal to or greater
than those listed in the table. When possible, test equipment specifications should be at least four
times better than corresponding Series 2600B specifications.
Recommended calibration equipment
Description
Digital Multimeter
0.5 Ω , 250 W, 0.1%
Precision Resistor
50 Ω Resistors (2)
1 GΩ , 200V, 1%
standard
1. 90-day specifications show full-range accuracy of recommended model used for specified calibration point.
2. Id.
3. Id.
4. Resistor used to calibrate Model 2601B/2602B/2604B 3 A and 10 A ranges and Model
2611B/2612B/2614B/2634B/2635B/2636B 1.5 A and 10 A ranges should be characterized to uncertainty
shown using resistance function of a digital multimeter before use.
5. Used for contact check calibration. Characterize resistors using ohms function of digital multimeter before
use.
6. Standard is a guarded and characterized 1 GΩ resistor used to test Model 2634B/2635B/2636B 100 pA to
100 nA current ranges.

Calibration adjustment overview

The following topics contain an overview of the entire calibration adjustment procedure.
B-20
Series 2600B System SourceMeter® Instrument Reference Manual
Manufacturer/Model
Keithley Instruments
Model 2002
or
Agilent 3458A
Isotek
RUG-Z-R500-0.1-TK3
5
Any suitable
Keithley Instruments
Model 2600-STD-RES
Accuracy
1
DC Voltage
(2601B/2602B/2604B)
2
DC Voltage
(2611B/2612B/2614B/2634B
/2635B/2636B)
3
DC current
4
Resistance
6
Resistance
2600BS-901-01 Rev. B / May 2013
90 mV: ±8 ppm
0.9 V: ±5 ppm
5.4 V: ±4 ppm
36 V: ±6 ppm
190 mV: ±5 ppm
1.8 V: ±4 ppm
18 V: ±6 ppm
180 V: ±6 ppm
90 nA: ±430 ppm
0.9 A: ±45 ppm
9 A: ±25 ppm
90 A: ±23 ppm
0.9 mA: ±20 ppm
9 mA: ±20 ppm
90 mA: ±35 ppm
0.9 A: ±110 ppm
0.5 Ω:
±125 ppm
1 GΩ:
±250 ppm