Fluke 189II/AN, Руководство по обслуживанию

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True-rms Digital Multimeter
Calibration Adjustment
23
Operation
Calibration adjustment is started by pressing the F1 [Setup] softkey, and then navigating
to Calibration on the Setup menu.
Note
The Meter will not allow calibration a low battery condition.
When Calibration is selected in the Setup menu, the F1-F4 softkeys function as shown in
Table 5.
Table 5. Calibration Entry Softkeys
Key Function Description
F1 Calibrate Starts calibration after successful password entry.
F2 Password Change the calibration password after successful password entry.
F4 Close Return to Setup Screen.
Entering the Password
A four digit numeric password is required to access the Meter calibration adjustment
procedure. The default password is 1234.
When Calibrate [F1 key] is selected from the Calibration Setup menu, a dialog box titled
Enter Password is displayed.
The Meter’s arrow keys are used to edit each or the 4 digits to arrive at the correct
password.
To enter the password, the F1 [OK] key is pressed:
To abort the password attempt, the F4 [Cancel] key is pressed.
If an incorrect password is entered then Incorrect password entered message is displayed.
Press OK to return to the Enter Password screen.
Changing the Password
When F2 key Password is selected from the Calibration Setup menu, a dialog box titled
Enter Password, is displayed.
Enter the current password using the same method described in the Entering the
Password section above.
After the current password is entered, a dialog box titled Enter New Password is
displayed. Entering the new password is done using the same dialog described in the
Entering the Password section above.
When the new password is accepted then the message Password changed is displayed.
The F1 key [OK] is used to return to the measurement mode.
Restoring Factory Default Password
To restore the factory default password [1234] do the following:
1.
Remove the Meter’s case bottom as described under “Disassembly”.
2. Locate the PCA Battery Terminals as shown in Figure 4. Observing correct polarity,
use an external lab supply or battery to apply 9 volts to the PCA battery terminals.
TP8 and TP10 can also be used to apply power to the PCA.
3. Power the Meter on using the front panel power button.