Tektronix KEITHLEY 2600B Series User Manual

Series 2600B System SourceMeter® instrument Reference Manual Section 10: Calibration
2600BS-901-01 Rev. F/August 2021 10-11
2634B, 2635B, and 2636B current measurement accuracy limits
Source and measure range
1
Source current
2
Current reading limits (1 year,
18° C to 28° C)
100 pA to 100 nA ranges
See Model 2634B, 2635B, 2636B current measurement accuracy
100 pA to 100 nA ranges (on page 10-11)
1 µA
0.9000 µA
0.89938 µA to 0.90063 µA
10 µA
9.0000 µA
8.9963 µA to 9.0038 µA
100 µA
90.000 µA
89.957 µA to 90.043 µA
1 mA
0.9000 mA
0.89962 mA to 0.90038 mA
10 mA
9.0000 mA
8.9957 mA to 9.0043 mA
100 mA
90.000 mA
89.962 mA to 90.038 mA
1 A
0.90000 A
0.89823 A to 0.90177 A
1.5 A
1.3500 A
1.34583 A to 1.35418 A
1. Measure range coupled to source range when simultaneously sourcing and measuring current.
2. As measured by precision digital multimeter. Use closest possible value and modify reading limits
accordingly if necessary. See Measurement limit calculations (on page 10-4).
8. Turn the output off and change connections as shown adding the 0.5 Ω 250 W resistor (see the
figure titled "Connections for 1.5 A and 3 A current ranges" in Current source accuracy (on
page 10-6)).
9. Select the DMM volts function.
Repeat steps 4 through 6 for the 3 A range (2601B, 2602B, or 2604B) or 1.5 A range (2611B,
2612B, 2614B, 2634B, 2635B, or 2636B). Calculate the current from the DMM voltage reading
and characterized 0.5 Ω resistance value.
10. For the 2602B, 2604B, 2612B, 2614B, 2634B, or 2636B, repeat the above procedure for the
other channel.
Model 2634B, 2635B, and 2636B current measurement accuracy 100 pA
to 100 nA ranges
A suitably guarded and characterized 1 GΩ resistance standard, such as the Keithley
Instruments Model 2600-STD-RES, is necessary for the following measurements. Step-by-step
procedures and connection diagrams for verifying the current measurement accuracy for the low
current ranges are included with the 2600-STD-RES. The general process entails forcing a
characterized voltage across the 1 GΩ resistor and comparing the 2634B, 2635B, or 2636B
measured results against the standard resistance and voltage derived current.
1. Characterize the appropriate ±V source values with the DMM according to the following table.
2634B, 2635B, and 2636B characterization of Voltage Source settings
Low Current Range
Voltage Source
Compliance
100 pA (not available on 2634B)
±90.000 mV
1.5 A
1 nA
±0.90000 V
1.5 A
10 nA
±9.0000 V
1.5 A
100 nA
±90.000 V
100 mA

Tektronix KEITHLEY 2600B Series Specifications

General

Brand	Tektronix
Model	KEITHLEY 2600B Series
Category	Measuring Instruments
Language	English