WIKA Operating Instructions Level Transmitter
– BLM-SF-FM
23
4.2.2.14 Enabling and disabling of the write protection
The transmitter can be protected against accidental parameter changes.
Hereby, all parameter changes via HART® are denied and the entry to the
setup menu is protected by a password.
The password is fixed to “746”. If write protection has been turned on, it
has to be entered by <->, <+> and acknowledged by <OK> when access-
ing the setup menu.
Access:
Setup -> HART -> Write protect
Possible Values:
On, Off (Standard value: Off)
Remark:
If write protection is active, the error code “Device
write protected” is returned for all writing HART®
commands.
