Endress+Hauser Prosonic S FMU90 - 5.5 Lock;unlock configuration

Operation
49
5.5 Lock/unlock configuration
5.5.1 Software locking
Locking
Go to the parameter "device properties/passoword-reset/code" and enter a value ≠100. The
instrument is locked against parameter changes.
The symbol appears on the display.
Unlocking
If you try to change a parameter, the "password-reset" parameter set appears. Select the "code"
parameter and enter "100". Parameters can be changed again.
5.5.2 Locking by key combination
Locking
Press all three keys simultaneously. The instrument is locked against parameter changes.
The symbol appears on the display.
Unlocking
If you try to change a parameter, the "password/reset" parameter set appears. "key locked" is
displayed in the "status" parameter. Press all three keys simultaneously. Parameters can be changed
again.
5.5.3 Hardware locking
The instrument can be locked against parameter changes by the locking switch in the terminal
compartment of the Prosonic S.
L00-FMU90xxx-19-00-00-yy-049
Switch position A: unlocked; parameters can be changed
Switch position B: locked; parameters can not be changed.
If the switch is in position B, appears on the display and parameters can not be changed. The
instrument can only be unlocked by the switch.
Display
POWER
HART
0/4…20mA
Sync
Fuse
I
1
FDU-
Sensor
RD
11
BK
10
YE
9
40
39
5
4
6
7
8
1
1
Service
Relay
3
2
1
A
B