WARNING
Use of the device with intrinsic safety "Ex i" type of protection in a polluted environment.
If you open the device on the display side, there is a risk of pollution. The safety of the device
for use in hazardous areas is therefore no longer guaranteed. There is a danger of explosion.
• Ensure that the environment is clean before rotating or replacing the display.
WARNING
Incorrect material for the diaphragm in Zone 0
Risk of explosion in the hazardous area. If operated with intrinsically safe supply devices of
category "ib" or devices of the ameproof enclosure version "Ex d" and simultaneous use in
Zone 0, pressure transmitter explosion protection depends on the tightness of the diaphragm.
• Ensure that the material used for the diaphragm is suitable for the process medium. Refer
to the information in the section "Technical data (Page 61)".
Safety notes
3.3 Use in hazardous areas
SITRANS P320/P420
Compact Operating Instructions, 01/2021, A5E38874562-AC 19
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