Keithley 6482 - Page 289

17-34 Return to Section Topics 6482-901-01 Rev. A / August 2012
Section 17: Calibration Model 6482 Dual-Channel Picoammeter / Voltage Source Reference Manual
Step 4. Channel 2 input offset voltage calibration adjustment
1. Install a triaxial shielding cap on the channel 2 INPUT connector.
2. Send this command to calibrate channel 2 input offset voltage:
:CAL:PROT:SOUR2:OFFS
Step 5. Channel 2 voltage source calibration adjustment
Follow these steps to calibrate the channel 2 voltage bias source. Table 17-13 summarizes
channel 1 calibration voltages and commands.
1. Connect the DMM to the Model 6482 channel 2 OUTPUT and INPUT LO terminals, as shown
in Figure 17-8.
2. Select the DMM DC voltage function, and enable autorange.
3. Send this command to turn on the channel 2 output:
:OUTP2 ON
4. Send the following command to select the channel 2, 10 V voltage bias range:
:SOUR2:VOLT:RANG 10
5. Send the following command to output +10 V:
:SOUR2:VOLT 10
6. Note and record the DMM reading, and send that value as the parameter for the following
command:
:CAL:PROT:SOUR2 <DMM_Reading>
Table 17-12
Channel 1 remote voltage bias calibration summary
Voltage bias
range
Calibration
voltages Calibration commands
10 V
+10 V
0 V
-10 V
:OUTP1 ON
:SOUR1:VOLT:RANG 10
:SOUR1:VOLT 10
:CAL:PROT:SOUR1 <DMM_Reading>
:SOUR1:VOLT 0
:CAL:PROT:SOUR1 <DMM_Reading>
:SOUR1:VOLT -10
:CAL:PROT:SOUR1 <DMM_Reading>
30 V
+30 V
0 V
-30 V
:SOUR1:VOLT:RANG 30
:SOUR1:VOLT 30
:CAL:PROT:SOUR1 <DMM_Reading>
:SOUR1:VOLT 0
:CAL:PROT:SOUR1 <DMM_Reading>
:SOUR1:VOLT -30
:CAL:PROT:SOUR1 <DMM_Reading>
:OUTP1 OFF