Endress+Hauser Levelflex M FMP40 Interface Brief Operating Instructions page 27

Levelflex M FMP40 4...20 mA HART
5.4.8 Maximum measured error
Typical data under reference operating conditions:
DIN EN 61298-2, percentage values in relation to the span.
Output:
Sum of non-linearity,
non-repeatability and hysteresis
Offset/zero point
If the reference conditions are not met, the offset/zero point arising from the mounting situation
may be up to ±12 mm for rod probes. This additional offset/zero point can be compensated for
by entering a correction ("Offset" function (057)) during commissioning..
In the area around the lower probe end, the following measured error occurs for the
level measurement (level and interface electronics version):
80
60
40
20
0
-20
-40
-60
-80
0
Endress+Hauser
digital
Level (level and interface electronics versions):
– Measuring range up to 10 m: ±3 mm
– Measuring range >10 m: ±0.03 %
For PA-coated rope probes:
– Measuring range up to 5 m: ±5 mm
– Measuring range > 5 m: ±0.1 %
Interface (only "K" interface measurement electronics version)
– Measuring range up to 10 m: ±10 mm
If the thickness of the interface is <60 mm, the interface can no
longer be differentiated from the overall level such that both output
signals are identical.
±4 mm
rod probe and coax probe
DC = 2
DC > 7
50 100 150 200
distance from probe end [mm]
L00-FMP4xxxx-05-00-00-de-001
80
60
40
20
-20
-40
-60
-80
250 300
rope probe
0
0 50 100 150
distance from probe end [mm]
Commissioning
analog
±0.06 %
±0.03 %
DC > 7
200 250 300
L00-FMP4xxxx-05-00-00-de-002
27