6241A/6242 DC Voltage Current Source/Monitor Operation Manual
8.2 6242 Calibration
8-13
8.2 6242 Calibration
8.2.1 Cables and Measuring Instruments Required for Calibration
The table below shows the cables and measuring instrument accuracy required for calibration in each
range.
Range
ZERO FS
Standard
resistance
value
Recommend
ed
instrument
Cable
Calibration
point
Required
accuracy
Calibration
point
Required
accuracy
300 mV 00 V 500 nA ±300 mV 16 ppm 6581 *1 A01044
(Standard
accessory)*2
3 V 5 μV ±3 V 10 ppm
6 V 50 μV ±6 V 21 ppm
30 μA 0 A 50 pA ±30 μA 120 ppm
300 μA 500 pA ±300 μA 122 ppm
3 mA 5 nA ± 3 mA 122 ppm
30 mA 50 nA ±30 mA 122 ppm
300 mA 500 nA ±300 mA 230 ppm
3 A 0 V
(0 A) *3
1.5 μV ±300 mV
(±3 A) *3
16 ppm 100 mΩ
Required
accuracy:
150 ppm
A01044
(Standard
accessory)*2
5 A 1.5 μV ±50 mV
(±5 A) *3
60 ppm 10 mΩ
Required
accuracy:
150 ppm
A01035
(6581 Stan-
dard accessory)
*1: Use the 6581 under the following conditions:
Integration time: 10 PLC. Auto ZERO: ON. Within 24 hours following INT CAL.
*2: When a lot of externally induced noise exists, use shielded cables, such as A01001, etc.
*3: The 3 A and 5 A ranges of the 6242 are calibrated using voltage conversion with a standard resistance.
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