Technical data

500 Vdc Adjustment Procedure
The 500 Vdc calibration electronically corrects the multimeter’s 100:1
divider network (
U101) linearity characteristic for minimum error.
This adjustment should be performed only after replacement of the
divider network
U101 or the calibration RAM U505.
This calibration procedure is available starting with firmware
Revision 3 (REV 03-01-01).
Inputs from 450 V to 550 V are valid for this procedure. A failure to
complete this procedure correctly will generate error 725, “500V DC
correction out of range”.
Configuration: DC volts
1000 V range
6
1
⁄
2
digit (slow or fast resolution – MEAS MENU)
1 Perform the complete dc Volts gain calibration procedure.
2 Apply +500 Vdc to the input terminals.
3 Enter the CALibration MENU as shown in steps 3 through 6 of
the “Gain Adjustment Procedure” section on page 80. Enter the
exact known value for the +500 Vdc input as shown in step 5.
4 Check that the multimeter reads within the following limits of the
applied input after the calibration has completed: 0
± 6 mVdc.
4
Chapter 4 Calibration Procedures
Optional Gain Calibration Procedures
83