Keithley 2790, Reference Manual, Page: 410 / 568

Model 2790 SourceMeter
®
Switch System Reference Manual 16-29
Recommended test equipment
In order to verify Model 7751/7752/7753 accuracy, you will need the equipment summa-
rized in
Table 16-14 .
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Characterize test resistors using ohms function of either DMM listed in
Table 16-14 before use.
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Maximum common-mode voltage (voltage between any terminal and
chassis) is 42V peak.
Hazardous voltages may be present on terminals of test equipment and
test resistors. Use standard safety practices to avoid personal injury
due to electrical shock.
Table 16-14
Recommended equipment for
Model 7751/7752/7753 verification
Keithley Model 2001 Digital Multimeter:
1
500V: ±47ppm
HP3458A Digital Multimeter:
50mA: ±35ppm
Fluke 5700A Calibrator:
1
50
μ
A: ±250ppm
Characterized Resistors:
2
Source I ohms:
3
10
Ω
Vishay S102C-10R000-1%
100
Ω
Vishay S102C-100R00-1%
50
Ω
Vishay S102C-50R000-1%
20
Ω
Vishay S102C-20R000-1%
Source V ohms:
1, 4
1G
Ω
Caddock MG785-1000M-1%
100M
Ω
Caddock MG721-100M-1%
10M
Ω
Caddock MG712-10M-1%
1M
Ω
Caddock MG712-1M-1%
1. Necessary for Model 7751/7753 only.
2. Characterize all resistors using ohms function of DMM
before use. All resistors are 1% tolerance, 0.5W.
3. Temperature coefficient <20ppm/°C required.
4. Voltage rating of at least 1000V required.