FISCHER Mess- und Regeltechnik GmbH
Assembly | 3
BA_EN_DA03_GKT_HLP_ATEX
19/56
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
16V
Max. current
I
max
25 mA
Max. power
P
max
64 mW
Max. inner capacity
C
i max
30 nF
Max. inner inductivity
L
i max
100 µH
Recommend circuit breakers see accessories
3.4.4 Differential pressure transmitter with rotation angle transducer
DA03 … 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.
(a) European market (CE):
The documentation for the mechanical part were filed with the notified body
NB 0044 TÜV-Nord-Cert under file number 8000324431.
(b) UK market (UKCA):
The documentation for the mechanical part were filed with the notified body
NB 2812 Element Material Technology under file number 2812-013.
(c) Eurasian Economic Union (EAC):
The unit does not have ATEX approval for this market. It may only be used
there as an industrial unit.
