Keithley TEC SourceMeter 2510 Service Manual page 50

Models 2510 and 2510-AT
Step 2: Voltage calibration
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Step 3: Current and current protection calibration
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Connect the DMM to the Model 2510 OUTPUT terminals, as shown in Figure 2-1.
Select the DMM DC voltage function, and enable auto-range.
Send this command to turn on the output:
:OUTP ON
Send the following command to output +8.5V:
:SOUR:VOLT 8.5
Note and record the DMM reading, and then send that value as the parameter for the
following commands:
:CAL:PROT:SENS:VOLT <DMM_Reading>
:CAL:PROT:SOUR <DMM_Reading>
For example, if the DMM reading is 8.51V, the correct commands are:
:CAL:PROT:SENS:VOLT 8.51
:CAL:PROT:SOUR 8.51
Send the following command to output 0V:
:SOUR:VOLT 0
Note and record the DMM reading, then send that value as the parameter for the follow-
ing commands:
:CAL:PROT:SENS:VOLT <DMM_Reading>
:CAL:PROT:SOUR <DMM_Reading>
Send the following command to output -8.5V:
:SOUR:VOLT -8.5
Note and record the DMM reading, then send that value as the parameter for the follow-
ing commands:
:CAL:PROT:SENS:VOLT <DMM_Reading>
:CAL:PROT:SOUR <DMM_Reading>
Send this command to turn off the output:
:OUTP OFF
Disconnect the DMM from the OUTPUT terminals.
Connect the 1Ω resistor to the Model 2510 OUTPUT terminals, as shown in Figure 2-2.
Send this command to turn on the output:
:OUTP ON
Send the following command with the characterized 1Ω resistor value as the command
parameter:
:CAL:PROT:SENS:CURR <Resistance_Value>
For example, if the actual resistor value is 1.01Ω, the correct command is:
:CAL:PROT:SENS:CURR 1.01
Calibration 2-23