NOTE Keep drafts away from low-thermal connections to avoid thermal drift, which could
affect calibration accuracy.
2. Send the following command:
:CAL:PROT:DC:STEP1
3. After the Model 2182 completes this step, remove the low-thermal short, and send this
command:
:CAL:PROT:DC:STEP2
DC volts calibration
After front panel short and open steps, do the following:
1. Connect the calibrator to the CHANNEL 1 input of the Model 2182 as shown in
Figure 2-2. (SeeTable 2-3 for wire colors.) Allow two minutes for thermal equilibrium.
2. Perform the calibration steps summarized in Table 2-5. For each step:
• Set the calibrator to the indicated voltage, and make sure the unit is in operate. (Use
the recommended voltage whenever possible.)
• Allow the signal voltage to settle.
• Send the indicated programming command. (Change the voltage parameter if you
are using a different calibration voltage.)
• Wait until the Model 2182 completes each step before continuing.
Programming calibration dates
Program the present calibration date and calibration due date by sending the following
commands:
:CAL:PROT:DATE <year>, <month>, <day>
:CAL:PROT:NDUE <year>, <month>, <day>
For example, the following commands assume calibration dates of 12/15/97 and 12/15/98
respectively:
:CAL:PROT:DATE 1997, 12, 15
:CAL:PROT:NDUE 1997, 12, 15
Table 2-5
DC voltage remote calibration programming steps
Calibration step Calibrator voltage Calibration command* Parameter range
+10V +10.000000V :CAL:PROT:DC:STEP3 10 9 to 11
-10V -10.000000V :CAL:PROT:DC:STEP4 –10 -9 to –11
* Use indicated values whenever possible. Change parameter accordingly if using a different calibrator voltage.
Calibration 2-11
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