Michell Instruments Promet I.S., User Manual

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Promet I.S. User’s Manual
Michell Instruments 27
INSTALLATION
2.4.3.2 Optional Pressure Transmitter Wiring
HAZARDOUS AREA INFORMATION
The pressure transmitter is certi fi ed intrinsically safe for use
in hazardous areas by Baseefa and is covered by EC-type
examination certi fi cate BAS01ATEX1125X. The instrument
conforms to the standards speci fi ed in EN 50014:1997 + Amds 1
& 2, EN 50020:1994 and EN 50284:1999 with certi fi cation code
Ex ia IIB T4 (-20°C ≤ Ta ≤ 75°C).
Before using the pressure transmitter in any hazardous
environment ensure that personnel are completely familiar
with the above standards relating to the certi fi cation of
this instrument and also with the intrinsically safe system
information in the BAS01ATEX1125X certi fi cate or equivalent
codes of practice in the country of installation.
If the pressure transmitter is not ordered together with the
analyzer, it is the user’s responsibility to make sure that the
pressure transmitter is compatible with the I.S. barrier in the
control unit.
Refer to ATEX/CSA/IECEx certi fi cates for the dew-point and
optional pressure transmitters’ connection cable requirements
which stipulate maximum permissible mutual capacitance and
inductance to resistance ratio.
NOTE: A pressure transmitter will only be provided if the model with active
pressure compensation (order code:
P1/P2
) is ordered. For the model without
active pressure compensation (order code:
G
), skip this section.
a. The cable connection to the pressure transmitter is made via the removable
connector. Loosen the central screw (1) to remove the connector from the
transmitter.
Figure 19
Pressure Transmitter Connector