ppendix B: Calibration Model 2657A High Power System SourceMeter® Instrument Reference Manual
B-12 2657A-901-01 Rev. B/December 2012
2. Set the multimeter measuring function to DC volts.
3. Press the SRC key to source voltage and make sure the source output is turned on.
4. Enable the Model 2657A 4-wire (remote sense) mode:
a. Press the CONFIG key and then the SRC key.
b. Select V-SOURCE > SENSE-MODE > 4-WIRE.
5. Verify output voltage accuracy for each of the voltages listed in the following table. For each test
point:
• Select the correct source range.
• Set the Model 2657A output voltage to the indicated value.
• Verify that the multimeter reading is within the limits given in the table.
Output voltage accuracy limits
Source range Output voltage setting Output voltage limits
(1 year, 18 °C to 28 °C)
200 V 100 V 99.920 V to 100.080 V
180 V 179.896 V to 180.104 V
500 V 250 V 249.800 V to 250.200 V
450 V 449.740 V to 450.260 V
1500 V 750 V 749.400 V to 750.600 V
1350 V 1349.220 V to 1350.780 V
3000 V 1500 V 1498.80 V to 1501.20 V
2700 V 2698.44 V to 2701.56 V
6. Repeat the procedure for negative output voltages with the same magnitudes as those listed in
the previous table, as applicable.
Voltage measurement accuracy
Follow the steps below to verify that the Model 2657A voltage measurement accuracy is within
specified limits. To perform this test, you will set the source voltage, as measured by a precision
digital multimeter, and then verify that the Model 2657A voltage readings are within required limits.
1. With the power off, connect the digital multimeter to the Model 2657A output terminals using
4-wire connections (the same connections as shown in Voltage source accuracy
(on page B-9)).
2. Select the multimeter DC volts function.
3. Enable the Model 2657A 4-wire (remote sense) mode:
a. Press the CONFIG key and then the MEAS key.
b. Select V-MEAS > SENSE-MODE > 4-WIRE.
4. Set the Model 2657A SMU to both source and measure voltage by pressing the SRC and then
the MEAS keys.
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