Digital Multimeter
Calibration Adjustment
Calibration Adjustment
The Meter features
The following sections present the features and Meter pushbutton functions that can be used during the Calibration Adjustment Procedure. Perform the Calibration Adjustment Procedure should the Meter fail any performance test listed in Table 15.
Calibration Adjustment Counter
The Meter contains a calibration adjustment counter. The counter is incremented each time a Calibration Adjustment Procedure is completed. The value in the counter can be recorded and used to show that no adjustments have been made during a calibration cycle.
Use the following steps to view the Meter's calibration counter.
1.While holding down B, turn the rotary knob from OFF to VAC. The Meter should display “ZCAL”.
2.Press Donce to see the calibration counter. For example "n001".
3.Turn the rotary knob to OFF.
Calibration Adjustment Password
To start the Calibration Adjustment Procedure, the correct
Changing the Password
Use the following steps to change the Meter's password:
1.While holding down B, turn the rotary knob from OFF to VAC. The Meter displays “ZCAL”.
2.Press Donce to see the calibration counter.
3.Press Dagain to start the password entry. The Meter displays "????".
4.The Meter buttons represent the digit indicated below when entering or changing the password:
A= 1 B= 2 C= 3 D= 4 H= 5 E= 6 F= 7 G= 8
Press the 4 buttons to enter the old password. If changing the password for the first time, enter A(1) B(2) C(3) D(4).
5.Press Cto change the password. The Meter displays
6.Press the 4 buttons of the new password.
7.Press Dto store the new password.
23