Proper Mounting; Installing; Introduction - Siemens SITRANS P Operating Instructions Manual

5.1.2

Proper mounting

Incorrect mounting at Zone 0
Risk of explosion in hazardous areas.
● Ensure sufficient tightness at the process connection.
● Observe the standard IEC/EN 60079-14.
NOTICE
Incorrect mounting
The device can be damaged, destroyed, or its functionality impaired through improper
mounting.
● Before installing ensure there is no visible damage to the device.
● Make sure that process connectors are clean, and suitable gaskets and glands are used.
● Mount the device using suitable tools. Refer to the information in Technical data
NOTICE
Use of line and cable entries made of plastic in hazardous areas
Device damage caused by impact at temperatures below -20 °C.
● Make sure that the line and cable entries are protected from impacts.
5.2

Installing

5.2.1

Introduction

The pressure transmitter can be configured above or below the pressure sampling point. The
recommended configuration depends on the aggregate state of the process medium.
Installation configuration for gases
Install the pressure transmitter above the pressure sampling point.
Lay the pressure tubing with a constant gradient to the pressure sampling point, so that any
condensation produced can drain in the main line and thereby avoid corruption of the measured
values.
Installation configuration for vapor and liquid
Install the pressure transmitter below the pressure sampling point.
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
WARNING
(Page 199).
Installing/mounting
5.2 Installing
47