Endress+Hauser Prosonic T FMU30 - Measuring Range

Installation Prosonic T
14 Endress+Hauser
3.4 Measuring range
3.4.1 Blocking distance, Nozzle mounting
Install the instrument at a height so that the blocking distance BD is not undershot, even at
maximum fill level. Use a pipe nozzle if you cannot maintain the blocking distance in any other way.
The interior of the nozzle must be smooth and may not contain any edges or welded joints. In
particular, there should be no burr on the inside of the tank side nozzle end. Note the specified limits
for nozzle diameter and length. To minimise disturbing factors, we recommend an angled socket
edge (ideally 45°).
L00-FMU30xxx-17-00-00-xx-004
BD Blocking distance F Full calibration (span)
SD Safety distance D Nozzle diameter
E Empty calibration L Nozzle length
"
Caution!
If the blocking distance is undershot, it may cause device malfunction.
!
Note!
In order to notice if the level approaches the blocking distance, you can specify a safety distance
(SD). If the level is within this safety distance, the instrument outputs a warning or alarm message.
F
E
BD
SD
L
D
Maximum nozzle length mm (in)
Nozzle diameter 1½" sensor 2" sensor
DN50/2" 80 (3.15) 
DN80/3" 240 (9.45) 240 (9.45)
DN100/4" 300 (11.8) 300 (11.8)
DN150/6" 400 (15.7) 400 (15.7)
DN200/8" 400 (15.7) 400 (15.7)
DN250/10" 400 (15.7) 400 (15.7)
DN300/12" 400 (15.7) 400 (15.7)
Sensor characteristics
Emitting angle  11° 11°
Blocking distance (m [ft]) 0.25 (0.8) 0.35 (1.1)
Max. range (m [ft]) in liquids 5 (16) 8 (26)
Max. range (m [ft]) in solids 2 (6.6) 3.5 (11)