6243/44 DC Voltage Current Source/Monitor Operation Manual
7.2.3 Test Methods
7-5
(4) Current source measurement test (3.2 A, 10 A range)
1. Connect the 6244, the DMM, and a 3.2 A standard resistor for calibration as
shown in Figure 8-3 (c).
2. Set the DMM to DCV, auto range, and the integration time at 10 PLC or longer.
3. Set the 6244 to DC source mode, free run, and the integration time at 10 PLC or
longer.
4. Select current source current measurement and Operate.
5. With ZERO and F.S generated in the 3.2 A range, verify that the difference
between the source set value and the DMM measured value and the difference
between the standard resistance value and the current conversion value are within
the accuracy described in Section 9.2, “6244 Specifications.”
6. With the standard resistor replaced with a 10 A standard resistor for calibration
and the current range set to the 10 A range, perform the verification in the same
manner as in step 5.
NOTE: If the result of this test does not fall within the accuracy specifications, calibrate
the 6243/44 as outlined in Section 8.2, “6244 Calibration” or contact an ADC
CORPORATION sales representative for calibration or servicing.