Installation - Siemens SITRANS P MK II Series Instruction Manual

7MF4010
2

Installation

!
WARNING
Notes on operating of the intrinsically-safe version in hazardous
areas:
Operation is only permitted on circuits which are certified as in-
trinsically safe. The transmitter is compliant with Category 1/2
and may be installed at Zone 0.
The EC-Type Examination Certificate applies for installation in
the walls of containers and pipes which may contain explosive
gas/air or vapor/air mixtures only under atmospheric conditions
(pressure: 0.8 bar to 1.1 bar; temperature: -20 °C to +60 °C). The
permissible ambient temperature range is -30 °C to +85 °C, in
hazardous areas -30 °C to maximum +80 °C (for T4).
The user may also apply the device in non-atmospheric condi-
tions outside the limits set in the EC--Type Examination Certifi-
cate, according to the conditions for use (explosive mixture) and
if the required additional security measures have been met. The
limit values stated in the general technical data must be
observed in any cases.
Additional requirements are necessary when installating at zone 0:
The installation must be adequately sealed (e.g. IP67 to EN 60
529). For example, an industrial standard (e.g. DIN, NPT) threa-
ded joint is suitable.
When operating with intrinsically safe power supply units of the
"ia" category, the explosion protection does not depend on the
chemical resistance of the seal diaphragm.
When operating with intrinsically safe power supply units of the
"ib" category and simultaneous use at zone 0, the explosion
protection of the transmitter depends on the chemical resistance
of the diaphragm. Under these operating conditions, the transmit-
ter may only be used for inflammable gases and liquids for which
the diaphragms are sufficiently chemically resistant to prevent
corrosion.
56
Instruction Manual
SITRANS P , MK II
C73000-B5674-C100-02