FISCHER MA15F ... A Series, Руководство по эксплуатации

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3.4.4 Differential pressure transmitter with rotation angle transducer
MA15 … 2D
II 2G Ex h IIC T4 Gb
Explosive areas Zone 1 and 2, risk from gases.
Rotation angle transducer: KE0905#9
Allowed temperatures:
• The maximum surface temperature 95 °C was determined under the follow-
ing conditions without dust accumulation and safety factor.
• Allowed ambient temperature: -20°C to +60°C.
• Allowed medium temperature in the differential measurement unit < 85°C.
WARNING
Compression heat
With gaseous mediums, the instrument temperature can increase due to com-
pression heat. In such cases, the pressure change speed must be limited or re-
duced to the allow measuring substance temperature.
NOTICE! For a differential pressure change between 10% and 90% of the
measuring range and a pulse frequency < 0.06 Hz, the temperature in-
crease is <10K.
To avoid additional heating, the instruments may not be exposed to direct sun-
light during operation!
The standards EN60079-0, EN ISO 80079-36 and EN ISO 80079-37 apply for
the non-electrical part of the devices in terms of explosion protection. The ap-
plicable requirements of these standards are satisfied.
The installed capacitive rotation angle measuring transducer of the type KINAX
3W2 are EC type-tested with the certificate ZELM 10 ATEX 0427 X. The type of
the installed rotation angle transducer is stated on the type plate. The manufac-
turer is Camille Bauer Metrawatt AG. For more information about the rotation
angle transducer, please visit the website
http://www.camillebauer.com .
The documents for the mechanical part were filed with notified office NB0044
(TÜV-Nord-Cert) under the file number 8000389448.
Intrinsically safe power circuits
For use in areas at risk of explosion, instruments must be connected to certified,
intrinsically safe electricity circuits.
Max. voltage U
max
30 V
Max. current I
max
160 mA
Max. power P
max
1 mW
Max. inner capacity C
i max
10 nF
Max. inner inductivity L
i max
0 µH
Recommend circuit breakers see accessories