FISCHER Mess- und Regeltechnik GmbH
Assembly | 3
BA_EN_DA03_GKT_HLP_ATEX
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3.4.2 Differential pressure transmitter with magnetic spring contacts
DA03 … 1B
II 2G Ex h IIC T4 Gb
Simple electric operating equipment acc. to EN60079-11 sec: 5.7 in explosive
areas Zone 1 und 2.
Contact element: KE ## M ## 0B4H2
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.
As a simple electrical operating unit, the installed electrical switch contacts fulfil
the requirements of the standard EN60079-14 Par. 3.5.2. The devices are not
labelled with respect to the electrical part.
(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.
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
30V
Max. current
I
max
200 mA
Max. power
P
max
800 mW
Max. inner capacity
C
i max
60 pF
Max. inner inductivity
L
i max
4 µH
Recommend circuit breakers see accessories
