Endress+Hauser Prosonic M FMU41 - Installation hint for FMU40, FMU41

Prosonic M - FOUNDATION Fieldbus Installation
Endress+Hauser 25
3.4.2 Safety distance
If the level rises to the safety distance SD, the device switches to warning or alarm status.
The size of SD can be set freely in the "Safety distance" (015) function.The "in safety distance"
(016) function defines how the device reacts if the level enters the safety distance.
There are three options:
• Warning: The device outputs an error message but continues measurement.
• Alarm: The device outputs an error message. The output signal assumes the value defined in the
"Output on alarm" (011) function (MAX, MIN, user-specific value or holds the last value). As
soon as the level drops below the safety distance, the device recommences measurement.
• Self holding: The device reacts in the same way as for an alarm. However, the alarm condition
continues after the level drops below the safety distance. The device only recommences
measurement when you cancel the alarm using the "Ackn. alarm" (017) function.
3.4.3 Range
The sensor range is dependent on the measuring conditions. Refer to Technical Information
TI00365F/00/EN for an estimation. The maximum range is shown in the above diagram (valid for
good conditions).
3.5 Installation hint for FMU40, FMU41
Sensor Maximum range
FMU40 5 m (16 ft)
FMU41 8 m (26 ft)
FMU42 10 m (33 ft)
FMU43 15 m (49 ft)
FMU44 20 m (66 ft)
"
Caution!
Use only the screw-in piece to screw in the
Prosonic M.
Screw the Prosonic M at the screw-in piece
using an 60 AF spanner.
Maximum torque: 20 Nm (14.75 lbf ft).
L00-FMU4xxxx-17-00-00-yy-009
1 Housing F12 or T12
2 60 AF
60
1
2