Endress+Hauser Levelflex FMP53 - Storage Temperature; Climate Class; Altitude According to IEC61010-1 Ed.3; Degree of Protection

Levelflex FMP53
Endress+Hauser 47
Storage temperature
• Permitted storage temperature: –40 to +80 °C (–40 to +176 °F)
• Use original packaging.
Climate class
DIN EN 60068-2-38 (test Z/AD)
Altitude according to
IEC61010-1 Ed.3
• 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
Degree of protection
• When housing is closed, tested according to:
• IP68, NEMA6P (24 h at 1.83 m under water)
(also applies for the "Remote sensor" version)
• For plastic housing with see-through lid (display): IP68 (24 h at 1.00 m under water)
This restriction applies if the following options have been selected simultaneously in the product
structure: 030 ("Display/operation") = C ("SD02") or E ("SD03"); 040 ("Housing") = A ("GT19").
• IP66, NEMA4X
• With housing open: IP20, NEMA1
• Display module: IP22, NEMA2
Degree of protection IP68 NEMA6P only applies for M12 PROFIBUS PA plugs if the
PROFIBUS cable is plugged in and is also rated IP68 NEMA6P.
Vibration resistance
DIN EN 60068-2-64 / IEC 60068-2-64: 20 to 2 000 Hz, 1 (m/s
2
)
2
/Hz
Cleaning the probe
Dirt or buildup may form on the probe depending on the application. A thin, even layer has little
impact on the measurement. Thick layers can dampen the signal and then reduce the measuring
range. Very uneven deposit formation, e.g. caking due to crystallization, can result in incorrect
measurements. In such cases, we recommend the use of a non-contact measuring principle, or a
regular inspection of the probe for contamination.
Electromagnetic
compatibility (EMC)
Electromagnetic compatibility in accordance with all of the relevant requirements outlined in the EN
61326 series and NAMUR Recommendation EMC (NE 21). For details, refer to the Declaration of
Conformity.
Download at www.endress.com.
Use a shielded cable for signal transmission.
Maximum measured error during EMC testing: < 0.5 % of the span.
When the probes are installed in metal and concrete vessels and when a coax probe is used:
• Interference emission according to EN 61326 - x series, Class B equipment.
• Interference immunity according to EN 61326 - x series, requirements for industry and NAMUR
Recommendation NE 21 (EMC)
When probes are installed without a shielding/metal wall, e.g. installation in plastic or wooden silos,
the effect of strong electromagnetic fields can influence the measured value.
• Interference emission according to EN 61326 - x series, Class A equipment.
• Interference immunity: the effect of strong electromagnetic fields can influence the measured
value.