Calibration 14-13
3. Note and record the DMM reading, then send that reading as the parameter for the
following command:
:CAL:PROT:STEP1 <DMM_Reading
>
For example, if the DMM reading is 14.012V, the command would be:
:CAL:PROT:STEP1 14.012
4. Note and record a new DMM reading, then send that reading as the parameter for the
follo
wing command:
:CAL:PROT:STEP2 <DMM_Reading
>
5. Send the following command for DVM full-scale calibration:
:CAL:PROT:STEP3
6. Connect the Model 2306 OUTPUT #1 SOURCE terminals to the DMM volts input and
charac
terized 4Ω resistor, as shown in Figure 14-2. Be sure to observe proper polarity
(SOURCE + to INPUT HI; SOURCE - to INPUT LO).
7. Make sure the digital multimeter DC volts function and auto-ranging are
still selected.
8. Send the following command to output 1.9A for 5A full-scale calibration:
:CAL:PROT:STEP4 1.9
9. Note and record the DMM voltage reading, then calculate the current from that reading
and charac
terized 4Ω resistor value. Send the following command using that calculated
current as the parameter:
:CAL:PROT:STEP5 <Calculated_
Current>
For example, with a current value of 1.894A, the command would appear as follows:
:CAL:PROT:STEP5 1.894
10. Note and record a new DMM voltage reading, then again calculate the current from the
v
oltage and resistance. Send the calculated current value as the parameter for the
following command:
:CAL:PROT:STEP6 <Calculated_
Current>
11. F
or Model 2306/2306-VS: Connect the 3kΩ resistor in place of the 4Ω resistor (Figure
14-3).
For Model 2306-PJ:
Leave the 4Ω resistor in place (do not change resistors)
(Figure 14-2).
12. Make sure the DMM DC v
olts function and auto-range are still selected.
13. Send the following command (this command outputs approximately 5mA for the
Mo
del 2306/2306-VS and approximately 500mA for the Model 2306-PJ):
:CAL:PROT:STEP7
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
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