Multifunction Process Calibrator
Calibration Adjustment Procedures
31
Cal Volts Output
Connect the UUT as shown in Figure 14.
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Figure 14. Volts Output Calibration Connections
From the Calibration Menu, type the number or letter for Cal Volts Output. The PC
displays:
Zero into DAC. Enter the Volts displayed :
Set the HP 3458 to read V DC. Be sure the NPLC on the HP 3458 is slow enough to get
stable readings to four decimal places. When the reading on the HP 3458 has stabilized,
enter the value in volts on the PC, and press Enter. It is only necessary to enter four
places past the decimal point. It is not necessary to enter the units (V). After a short
while, the PC displays:
Max value into DAC. Enter the Volts displayed :
Enter the voltage reading (four places past the decimal) from the HP 3458 on the PC,
then press Enter. After a short while the PC displays the following calibration constants
and new prompt:
0.000170 = 11.071999 - 0.000000 )/ 65279.00
- press space bar to continue
Press the space bar to return to the Calibration Menu.
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