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Model DMM6500 6½-Digit Multimeter with Scanning Calibration and Adjustment Manual
Section 3: Adjustment
DMM6500-905-01 Rev. A/July 2018
3-7
Prepare your DMM6500 for a front-terminal adjustment with a 4-wire short
To prepare the DMM6500 for a front-terminal adjustment with a 4-wire short:
1. Set the TERMINALS switch to
FRONT
.
2. Install the Keithley Model 8610 or 8620 shorting plug on the front terminals of the DMM6500 as
shown in the figure below.
The shorting plug terminals must be connected so that HI and LO are correctly aligned. Zero
accuracy will be affected if the shorting plug terminals are not aligned correctly.
Figure 22: Connection for a front-panel adjustment with a 4-wire short
3. Allow to settle for five minutes.
Command parameters for a front-terminal adjustment with a 4-wire short
When calibrating your DMM6500 for a front-terminal adjustment with a 4-wire short, use the following
command parameters.
Send each command parameter twice. First, send the parameter using the
setup
command.
Second, send the parameter using the
execute
command.
The example code below uses the first command parameter from the table below. Send all command
parameters using this command.
cal.adjust.step.setup("cal_DCV_100mV_zero_front")
cal.adjust.step.execute("cal_DCV_100mV_zero_front")