2606B System SourceMeter® Instrument Reference Manual
Appendix B: Calibration
2606B-901-01 Rev. B / May 2018
B-9
Voltage source accuracy
To perform this test, you will set the output voltage to each full-range value and measure the voltages
with a precision digital multimeter.
To verify that the 2606B output voltage accuracy is within specified limits:
1. With the power off, connect the digital multimeter (DMM) to the 2606B output terminals using 4-
wire connections, as shown below.
Figure 133: Connections for voltage verification and adjustment
2. Set the multimeter measuring function to DC volts.
3. Select the single-channel display mode.
4. Press the
SRC
key to source voltage and make sure the source output is turned on.
5. Enable the 2606B 4-wire (remote sense) mode:
a. Press the
CONFIG
key and then the
SRC
key.
b. Select
V-SOURCE > SENSE-MODE > 4-WIRE
.
6. Verify output voltage accuracy for each of the voltages in the following table. For each test point:
Select the correct source range.
Set the 2606B 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)
100 mV
90.000 mV
89.732 mV to 90.268 mV
1 V
0.90000 V
0.89942 V to 0.90058 V
6 V
5.4000 V
5.39712 V to 5.40288 V
20 V
18.000 V
17.9844 V to 18.0156 V
7. Repeat the procedure for negative output voltages with the same magnitudes as those listed in
the previous table, as applicable.
8. Repeat the procedure for the other channel.
