Introduction To Commissioning; Safety Notes For Commissioning With Differential Pressure And Flow Rate - Siemens SITRANS P500 Compact Operating Instructions

WARNING
Improper commissioning in hazardous areas
Device failure or danger of explosion in hazardous areas.
● Do not commission the device until it has been mounted completely and connected in accordance with the information
in Chapter "Technical data (Page 28)".
● Before commissioning take the effect on other devices in the system into account.
WARNING
Opening device in energized state
Danger of explosion in areas subject to explosion hazard.
● Only open the device in a de-energized state.
● Check prior to commissioning that the cover, cover locks, and cable inlets are assembled in accordance with the
directives.
Exception: Devices having the type of protection "Intrinsic safety Ex i" may also be opened in energized state in hazardous
areas.
WARNING
Risk of explosion when media above 100 °C flows through the process flange
Explosion protection is no longer guaranteed and the approval is nullified.
It is prohibited for media above 100 °C to continually flow through the process flange.
Note
Hot surfaces
Hot process medium and high ambient temperatures lead to hot surfaces which can cause burns.
● Take corresponding protective measures, for example wear protective gloves.
5.2

Introduction to commissioning

Following commissioning, the transmitter is immediately ready for use.
To obtain stable measured values, the transmitter needs to be allowed to warm up for five minutes or so after the power
supply is switched on.
The operating data must correspond to the values specified on the nameplate. If you switch on the auxiliary power, the
transmitter will operate.
The following commissioning cases are typical examples. Configurations different from those listed here may be meaningful
depending on the system configuration.
5.3 Differential pressure and flow rate
5.3.1

Safety notes for commissioning with differential pressure and flow rate

WARNING
Incorrect or improper operation
If the lock screws are missing or are not sufficiently tight, and/or if the valves are operated incorrectly or improperly, it could
lead to serious physical injuries or considerable damage to property.
Measure
● Take care that the locking screw and/or the vent valve are screwed in and tightened.
● Ensure that the valves are operated correctly and properly.
SITRANS P500 with HART
A5E02307339-03, 04/2013
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