Endress+Hauser Levelflex FMP56 - Storage Temperature; Climate Class; Degree of Protection; Vibration Resistance

Levelflex FMP56, FMP57
30 Endress+Hauser
Temperature derating for FMP57
[°C]([°F]) T
a
[°C]([°F]) T
a
[°C]
([°F])
T
p
[°C]
([°F])
T
p
+150
(+302)
+150
(+302)
+82
(+180)
+79
(+174)
+74
(+165)
-40
(-40)
-40
(-40)
GT20: +71(+160)
GT20: +67(+153)
GT18: +69(+156)
GT18: +65(+149)
GT19: +55(+131)
GT19: +57(+135)
+80(+176)
GT18/20: +79(+174)
GT19: +74(+165)
-40(-40)
-40(-40)
T
a
T
p
4 20mA HART–
A:
4 20mA HART–
4 20mA–
C:
90–253VAC
K:
10.4–48VDC
L:
A0013634
GT18 = stainless steel housing
GT19 = plastic housing
GT20 = aluminum housing
A = 1 current output
C = 2 current outputs
K, L = 4-wire
T
a
= ambient temperature
T
p
= temperature at the process connection
Storage temperature
–40 to +80 °C (–40 to +176 °F)
Climate class
DIN EN 60068-2-38 (test Z/AD)
Degree of protection
• With closed housing tested according to:
– IP68, NEMA6P (24 h at 1.83 m under water surface)
– IP66, NEMA4X
• With open housing: IP20, NEMA1 (also ingress protection of the display)
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.
Vibration resistance
DIN EN 60068-2-64 / IEC 68-2-64: 20 to 2 000 Hz, 1 (m/s
2
)
2
/Hz
Cleaning the probe
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
(EMC)
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.
Use a shielded cable when working with a superimposed communications signal (HART).
Maximum measured error: < 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.