Restoring The Default Password - Fluke 1587 FC Calibration Manual

1587 FC/1587/1577
Calibration Manual
6. Press the four keys representing the new password.
7. Press  to store the new password.
Use these steps to change the password on a UUT with SN <32980000:
8. While holding down H on the UUT, turn the rotary switch from OFF to
9. Press  once to see the calibration counter.
10. Press  again to start the password entry. The UUT displays ????.
11. Press the four keys to enter the old password. If changing the password for
12. Press r to change the password. The UUT displays //// if the old
13. Press the four keys representing the new password.
14. Press  to store the new password.

Restoring the Default Password

If the calibration password is forgotten, the default password () can be
restored using the following steps.
1. Turn the rotary switch from OFF to B.
2. Remove the back case from the UUT. Leave the PCA in the top case.
3. Apply 6.0 V across the battery pads (XBT1) + and – on the back of the PCA.
To avoid electrical shock or personal injury, remove the test
leads and any input signal before removing the back case from
the UUT.
4. Short across the  keypad on the back of the PCA. See Figure 10. The
5. Remove the 6.0 V supply and install the back case on the UUT.
30
The UUT displays Z .
The following keys represent the digit indicated below when entering or
changing the password:
 = 1
m
Unused
H = 3
the first time, enter  (1), r (2), H (3), and  (4).
password is correct. If the password is not correct, the UUT emits a double
beep, displays ???? and the password must be entered again. Repeat step 4.
See Figure 10.
UUT should beep. The default password is now restored.
r = 2

Unused
 = 4
XWWarning
G = 5
B
.