Endress+Hauser Fieldbus Levelflex M FMP43 Operating Instructions Manual page 96

Technical data
Electromagnetic
compatibility (EMC)
Process temperature range
Process pressure limits
Materials in contact with
process
Dielectric constant
96
When installing the probes in metal and concrete tanks and when using a coax probe:
• Interference emission according to EN 61326, Class A equipment.
• 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 according to EN 61326, Class A equipment.
• Interference immunity: the measured value can be affected by strong electromagnetic fields.
10.1.5 Operating conditions: Process
The maximum permitted temperature at the process connection (see figure measuring point) is
determined by the O-ring material ordered:
O-ring material Min. temperature
FFKM (Kalrez)
EPDM
P = 16 bar.
max
The specified range may be reduced by the choice of process connection.
See chapter "Dimensions" from → ä 13.
ε
r ≥ 1.6
Levelflex M FMP43 with FOUNDATION Fieldbus
Max. temperature
-20 °C +150 °C
-20 °C +130 °C
measured
here
Endress+Hauser