Endress+Hauser Profi Bus Levelflex M FMP40 Operating Instructions Manual page 67

Levelflex M FMP40 PROFIBUS PA
!
⇒
ENDRESS + HAUSER
– +
E
⇒
ENDRESS + HAUSER
–
+ E
1) If using a metallic centering of probe end.
Endress+Hauser
The lower group applies to very loose or loosened bulk solids. Reduction of the max. possible
measuring range by means of:
• Extremely loose surfaces of bulk solids, e.g. bulk solids with low piled density when filled
pneumatically.
• Build-up, primarily of moist products.
Note!
Due to the high diffusion rate of ammonia it is recommended to use the FMP45 with gas-tight
bushing for measurements in this medium.
Function "process propert." (004)
Use this function to adapt the device reaction to the filling speed in the tank. The setting impacts
on an intelligent filter.
Selection:
• standard
• fast change
• slow change
• test:no filter
Selection: standard
Application: For all normal
applications, bulk
solids and fluids at low
to medium filling
speed and sufficiently
large tanks.
2-wire electronics: Dead time: 4 s
Rise time: 18 s
4-wire electronics: Dead time: 2 s
Rise time: 11 s
Function "end of probe" (030)
Use this function to select the polarity of the probe end signal. If the probe end is uncovered or in
an insulated attachment, there is a negative probe end signal.
The signal from the probe end is positive if the attachment is grounded.
Selection:
• free
• tie down isol.
1)
• tie down gnd.
fast change slow change
Small tanks, primarily Applications with
with fluids, at high strong surface
filling speeds. movement, e.g.
caused by stirrer,
primarily large tanks
with slow to medium
filling speed.
Dead time: 2 s Dead time: 6 s
Rise time: 5 s Rise time: 40 s
Dead time: 1 s Dead time: 3 s
Rise time: 3 s Rise time: 25 s
Commissioning
test:no filter
Shortest reaction time:
• For test purposes
• Measurement in
small tanks at high
filling speeds, if
"rapid change"
setting is too slow.
Dead time: 1 s
Rise time: 0 s
Dead time: 0,7 s
Rise time: 0 s
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