Endress+Hauser Fieldbus Levelflex M FMP45 Operating Instructions Manual page 96

Technical data
Storage temperature
Climate class
Vibration resistance
Cleaning the probe
Electromagnetic
compatibility (EMC)
Process temperature range
96
-40 °C ... +80 °C (-40 °F ... +176°F)
DIN EN 60068-2-38 (test Z/AD)
DIN EN 60068-2-64 / IEC 68-2-64: 20...2000 Hz, 1 (m/s
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 to EN 61326 and NAMUR Recommendation EMC (NE21). Details
are provided in the Declaration of Conformity. A standard installation cable is sufficient if only the
analog signal is used..
When installing the probes in metal and concrete tanks and when using a coax probe:
• Interference emission to EN 61326 - x series, electrical equipment Class B.
• Interference immunity to EN 61326 - x series, requirements for industrial areas 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 - x series, electrical equipment Class A.
• Interference Immunity: the measured value can be affected by strong electromagnetic fields.
10.1.6 Operating conditions: Process
The maximum permitted temperature at the process connection (see Figure for measuring point) is
determined by the process connection ordered:
FMP45: process pressure depending on the process temperature
Pressure [bar]
450
400 400
400
350
300
250
200
150
100
50
0
o o
-200 1 C -100 2 C
-60oC
Levelflex M FMP45 with FOUNDATION Fieldbus
400
400
o o
0 3 C 100 4 C
0oC 100oC
2 2
) /Hz
380
350
FMP45 XT FMP45 HT
o o
200 5 C 300 6 C
200oC 300oC
280 °C
Endress + Hauser
300
o
400 7 C
400oC
o
Temp. [ C]
L00-FMP45xxx-05-00-00-de-001