Siemens SITRANS P220, Краткое руководство по эксплуатации

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SITRANS P220 (7MF1567)
A5E03304437-AA, 09/2017
9
WARNING
Wetted parts unsuitable for the process media
Risk of injury or damage to device.
Hot, toxic and corrosive media could be released if the process medium is unsuitable for the wetted parts.
•
Ensure that the material of the device parts wetted by the process medium is suitable for the medium. Refer to the
information in Technical specifications (Page 14).
Note
Material compatibility
Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you
are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible
materials.
WARNING
Exceeded maximum ambient or process media temperature
Danger of explosion in hazardous areas.
Device damage.
•
Make sure that the maximum permissible ambient and process media temperatures of the device are not exceeded.
Refer to the information in Technical specifications (Page 14).
4.2 Additional notes on installation of explosion protection devices
The following specifications are to be observed for the types 7MF1567-***01-1**1, 7MF1567-***01-2**1, and 7MF1567-
***01-5**1 :
Operation is permitted only when connected to certified intrinsically-safe resistive circuits with the following maximum values:
U
i
≤ 30 V
I
i
≤ 100 mA
P
i
≤ 750 mW
Internal inductance Li = 0 nH
Internal capacitance Ci = 0 nF
A maximum ambient air temperature T
a
of -25 °C to +85 ºC is permitted for the pressure transmitter.
Use as a resource belonging to Category 1/2:
The pressure transmitters can be mounted in the wall separating the area with Category 1 requirements (Zone 0) and the
area with Category 2 requirements (Zone 1). In this case, the process connection must be adequately sealed in compliance
with IEC/EN 60079-26, Clause 4.3, for example by providing degree of protection IP67 in compliance with EN60529. The
supply must be effected via intrinsically safe circuits with type of protection ia. The measuring cell may only be used for
flammable materials to which the diaphragms of the measuring cells are adequately resistant both chemically and in terms of
corrosion.
4.3 Installation
● The location of the device has no influence on the measurement accuracy.
● Before installation, compare the process data with the data of the rating plate.
● The medium being measured must be suitable for the parts of the pressure transmitter in contact with the medium.
● The overload limit must not be exceeded.
● Connect the devices with fixed cable installation.