Storage Temperature; Climate Class; Altitude According To Iec61010-1 Ed.3; Degree Of Protection - Endress+Hauser Levelflex FMP51 Modbus Technical Information

Levelflex FMP51 Modbus

Storage temperature

Climate class

Altitude according to
IEC61010-1 Ed.3

Degree of protection

Vibration resistance

Cleaning the probe

Electromagnetic
compatibility (EMC)
6) This range is valid if option JN "Ambient temperature transmitter –50 °C (–58 °F)" has been selected in ordering features 580 "Test, Certificate". If
the temperature is permanently below –40 °C (–40 °F), failure rates may be increased.
7) also valid for the "Sensor remote" version
8) This restriction is valid if the following options of the product structure have been selected at the same time: 030 ("Display, Operation") = C
("SD02") or E ("SD03"); 040 ("Housing") = A ("GT19").
Endress+Hauser
–40 to +80 °C (–40 to +176 °F)
Option for FMP51 and FMP54: –50 to +80 °C (–58 to +176 °F)
DIN EN 60068-2-38 (test Z/AD)
• Generally up to 2 000 m (6 600 ft) above MSL.
• Above 2 000 m (6 600 ft) if the following conditions are met:
– Ordering feature 020 "Power supply; Output" = A, B, C, E or G (2-wire versions)
– Supply voltage U < 35 V
– Supply voltage of overvoltage category 1
• With closed housing tested according to:
– IP68, NEMA6P (24 h at 1.83 m under water surface)
– For plastic housing with transparent cover (display module): IP68 (24 h at 1.00 m under water
8)
surface)
– IP66, NEMA4X
• With open housing: IP20, NEMA1
• Display module: IP22, NEMA2
Degree of protection IP68 NEMA6P applies for M12 PROFIBUS PA plugs only when the
PROFIBUS cable is plugged in and is also rated IP68 NEMA6P.
DIN EN 60068-2-64 / IEC 60068-2-64: 20 to 2 000 Hz, 1 (m/s
Depending on the application, contamination or buildup 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. Severe, uneven buildup, adhesion e.g. through crystallization, 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 all relevant requirements of the EN 61326- series and NAMUR
recommendation EMC (NE21). For details see declaration of conformity. If only the analogue signal
is used, unshielded interconnection lines are sufficient for the installation. In case of using the digital
signal (HART/ PA/ FF) use shielded interconnection lines.
Use a shielded cable when working with a digital communications signal.
Max. fluctuations during EMC- tests: < 0.5 % of the span.
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. in plastic and 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.
6)
7)
2 ) 2 /Hz
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