Unlocking The Meter For Front-Panel Adjustments (Calibration); Unlocking The Meter For Adjustments Over A Remote Interface; Changing The Calibration Password; Resetting The Calibration Password - Fluke 8845A Calibration Manual

8845A/8846A
Calibration Manual

Unlocking the Meter for Front-Panel Adjustments (Calibration)

To unlock the Meter for adjustments from the front panel:
1. Press I.
2. Press CAL.
3. Press UNLOCK CAL.
4. Press ENTER to enter the password and unlock the Meter for adjustments.
Find the CALIBRATION:SECURE:STATE command in the "Supported SCPI
Commands" section of the 8846A/8845A Programmers Manual for information on
unlocking the Meter for calibration.
The Meter is shipped from the factory with the password set to FLUKE884X.

Unlocking the Meter for Adjustments Over a Remote Interface

To unlock the Meter, send the following command:
To relock the Meter, send the following command:

Changing the Calibration Password

The calibration password can be changed only through the remote interface. Find the
CALIBRATION:SECURE:CODE command in the "Supported SCPI Commands"
section of the 8846A/8845A Programmers Manual for information on changing the
calibration password.

Resetting the Calibration Password

If the calibration password has is lost or forgotten, the password can be reset to
FLUKE884X by performing the following actions.
Before taking the following steps, try to use the factory default password
FLUKE884X.
1. Perform the general disassembly steps in the "Disassembly Instructions" section.
2. Connect a jumper across W2, as shown in Figure 3-9.
3. Reconnect the power cord between the Meter and a power outlet.
4. Turn the Meter on.
5. Turn the Meter off and disconnect the power cord.
6. Remove the jumper connected above in step 2.
3-26
Press the soft key labeled -- to decrement the character or ++ to increment the
character. The character can be set to 0 through 9, A through Z, period (.), and
dash (-).
To move to the next character, press -->.
"CAL:SEC:STAT OFF, FLUKE884X"
"CAL:SEC:STAT ON, FLUKE884X"
On power-up, the password will automatically be reset to FLUKE884X.
Note