User's Manual

a3000 FC
Calibration Manual
10
Restore the Default Password
If the calibration password is lost, the default password (1234) can be manually
restored with the subsequent steps:
 Warning
To prevent electric shock or personal injury, remove all input
signals before you open the Product.
1. Remove the Product battery door. See “Battery Replacement”.
2. With a Phillips screwdriver, remove the bottom case screws. Two of the
screws are inside of the battery door.
3. Keep the pca in the top case.
4. Apply 3.0 V across the battery contacts on the pca. Note the polarity that is
shown in Figure 4.
5. Push  on the front of the Product.
6. Short across the CAL keypad on the pca. See Figure 4. The default password
is now restored.
7. Remove the 3.0 V supply and replace the bottom case, batteries, and battery
door.
Short across calibration
key pads to reset default
password
Battery
contacts
hby08.eps
Figure 4. Calibration Password Reset