Micropilot M FMR 240 with PROFIBUS PA
Technical data
E Hauser
97
Influence of ambiente
temperature
The measurements are carried out in accordance with EN 61298-3:
•
digital output (HART, PROFIBUS PA, Foundation Fieldbus):
–
FMR 240
average T
K
: 2 mm/10 K, max. 5 mm over the entire temperature range
-40 °C...+80 °C
10.1.4
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)
•
A standard installation cable is sufficient if only the analogue signal is used. Use a
screened cable when working with a superimposed communications signal (HART/
Intensor).
