Levelflex M FMP40
20 Endress+Hauser
Performance characteristics
Reference operating
conditions
• Temperature = +20 °C ±5 °C
• Pressure = 1013 mbar abs. ±20 mbar
• Humidity = 65 % ±20 %
• Reflection factor ≥ 0.8 (surface of the water for coax probe, metal plate for rod and rope probe with min.
1m∅)
• Flange for rod or rope probe ≥ 30 cm ∅
• Distance to obstructions ≥ 1m
• For interface measurement:
– Coax probe
– DC of the lower medium = 80 (water)
– DC of the upper medium = 2 (oil)
Maximum measured error Typical data under reference operating conditions: DIN EN 61298-2, percentage values in relation to the span.
If the reference conditions are not met, the offset/zero point arising from the mounting situation may be up to
±12 mm for rope and rod probes. This additional offset/zero point can be compensated for by entering a
correction (function "Offset" (057)) during commissioning.
Differing from this, the following measuring error is present in the vicinity of the level
(electronic version level and interface measurement):
If for rope probes the DC value is less than 7, then measurement is not possible in the area of the straining
weight (0 to 250 mm from end of probe; lower blocking distance).
Output: Digital Analog
Sum of non-linearity,
non-repeatability and
hysteresis
Level (electronic version level and interface measurement):
– 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 %
±0.06 %
Interface (only for electronic version "K" interface measurement):
– 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.
Offset / Zero ±4 mm ±0.03 %
L00-FMP4xxxx-05-00-00-en-001 L00-FMP4xxxx-05-00-00-en-002
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