Endress+Hauser Micropilot M FMR231, Руководство по эксплуатации

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Micropilot M FMR231 with FOUNDATION Fieldbus Technical data
Hauser 91
10.1.6 Operating conditions: Environment
Ambient temperature range Ambient temperature for the transmitter: -40 °C ... +80 °C (-40 °F … +176 °F), -50 °C
(-58 °F) on request.
The functionality of the LCD display may be limited for temperatures
Ta<-20 °C and Ta>+60 °C.
A weather protection cover should be used for outdoor operation if the instrument is exposed to
direct sunlight.
Storage temperature -40 °C … +80 °C (-40 °F … +176°F), -50 °C (-58 °F) on request.
Climate class DIN EN 60068-2-38 (test Z/AD)
Vibration resistance DIN EN 60068-2-64 / IEC 68-2-64: 20…2000 Hz, 1 (m/s
2
)
2
/Hz
This value can be reduced for Wave Guide antennas, depending on the length. In the event of
horizontal stress, mechanical support is required or provide the Wave Guide antenna with a
protective pipe.
Cleaning of the antenna The antenna can get contaminated, depending on the application. The emission and reception of
microwaves can thus eventually be hindered. The degree of contamination leading to an error
depends on the medium and the reflectivity, mainly determined by the dielectric constant
ε
r. If the
medium tends to cause contamination and deposits, cleaning on a regular basis is recommended.
Care has to be taken not to damage the antenna in the process of a mechanical or hose-down
cleaning (eventually connection for cleaning liquid). The material compatibility has to be considered
if cleaning agents are used!
The maximum permitted temperature at the flange should not be exceeded.
Electromagnetic compatibility • Interference Emission to EN 61326, Electrical Equipment Class B
• Interference Immunity to EN 61326, Annex A (Industrial) and NAMUR Recommendation
NE 21 (EMC)