Keithley 2601 Reference Manual page 450

Section 16: Calibration
Table 16-1
Recommended calibration equipment
Description
1GΩ, 200V, 1% stan-
dard
Digital Multimeter
0.5Ω , 250W, 0.1%
Precision Resistor
50Ω Resistors (2)
1GΩ , 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 2601/2602 3A and 10A ranges and Model 2611/2612/2635/
2636 1.5A and 10A 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 1G
100nA current ranges.
16-4
Series 2600 System SourceMeter® Instruments Reference Manual
Manufacturer/Model
Keithley Instruments Model
2600-STD-RES
Agilent 3458A
Isotek
RUG-Z-R500-0.1-TK3
5
Any suitable.
Keithley
2600-STD-RES
Ω
resistor used to test Model 2635/2636 100pA to
Return to Section Topics
Accuracy
6
Resistance 1GΩ:
1
DC Voltage 90mV:
(2601/2602) 0.9V:
5.4V:
36V:
2
DC Voltage 190mV:
(2611/2612) 1.8V:
18V:
180V:
3
DC current 90nA:
0.9µA:
9µA:
90µA:
0.9mA:
9mA:
90mA:
0.9A:
4
Resistance 0.5Ω :
6
Resistance 1GΩ :
2600S-901-01 Rev. C / January 2008
XXXPPM
±8ppm
±5ppm
±4ppm
±6ppm
±5ppm
±4ppm
±6ppm
±6ppm
±430ppm
±45ppm
±25ppm
±23ppm
±20ppm
±20ppm
±35ppm
±110ppm
±125ppm
+/-250ppm