Fluke 289 - Operation; Entering the Password; Changing the Password; Restoring Factory Default Password

True-rms Digital Multimeters
Calibration Adjustment
21
Operation
Calibration adjustment is started by pressing the F1 [Setup] softkey, and then navigating
to “Calibration” on the Setup menu.
Note
Calibration will not be allowed with 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
Restoring the factory default password [1234] can be done as follows:
1. Remove the Meter’s bottom case as described under “Disassembly”.
2. Locate the PCA Battery Terminals as shown in Figure 3. 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.