Levelflex M FMP41C with HART/4...20 mA Technical data
Endress + Hauser 79
Cleaning the probe Depending on the application, soilings or sediments can accumulate on the probe. A thin, even layer
only influences measurement slightly. Thick layers can dampen the signal and then reduce the
measuring range. Heavy, uneven build-up, adhesion e.g. through crystallisation, can lead to
incorrect measurement. In this case, we recommend that you use a non-contact measuring
principle, or check the probe regularly for soiling
Electromagnetic
compatibility (EMC)
When installing the probes in metal and concrete tanks and when using a coax probe:
• Interference Emission to EN 61326, Electrical Equipment Class B
• Interference immunity to EN 61326, Annex A (Industrial area) and NAMUR Recommendation
NE 21 (EMC)
The measured value can be affected by strong electromagnetic fields when installing rod and rope
probes without a shielding/metallic wall, e.g. plastic, and in wooden silos.
• Interference emission to EN 61326, Class A equipment.
• Interference immunity: the measured value can be affected by strong electromagnetic fields.
10.1.5 Operating conditions: Process
Process temperature range The maximum permitted temperature at the process connection (see Figure for measuring point) is
determined by the process connection ordered:
For FMP41C with Endress+Hauser adapter 43 mm: 0 °C ... 150 °C (32 °F...302 °F).
Lateral load-bearing capacity of the rod probe: 30 Nm
Process pressure limits All models: Vacuum up to max. 40 bar (585,9psi).
For FMP41C with Endress+Hauser universal adapter: max. 6 bar (87 psi).
For FMP41C with Tri-Clamp see ordering Information.
Materials used in the process
L00-FMP4xxxx-16-00-00-en-002
Min. temperature Max. temperature
-40° C [-40 °F] +200° C [392 °F]
measured
here
Material Approval
Rod probe, Rope probe PFA (Daikin PFA AP230) FDA, 3A
Cladding PTFE (Dyneon TFM1600) FDA, 3A
TFM 1600
TFM 1600
PFA
2mm
PFA
2mm
PFA
2mm
PFA PFAPFA PFA
1.4401 / PFA
0.75 mm
Rope probe Rod probe
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