Siemens SITRANS P Instruções de Operação descarregar pdf (Página 18)

WARNING

Use of incorrect device parts in potentially explosive environments

Devices

and their associated device parts are either approved for different types of protection

or they do not have explosion protection. There is a danger of explosion if device parts (such

as covers) are used for devices with explosion protection that are not expressly suited for

this type of protection. If you do not adhere to these guidelines, the test certificates and the

manufacturer warranty will become null and void.

● Use only device parts that have been approved for the respective type of protection in the

potentially explosive environment. Covers that are not suited for the "explosion-proof" type

of protection are identified as such by a notice label attached to the inside of the cover

with "Not Ex d Not SIL".

● Do not swap device parts unless the manufacturer specifically ensures compatibility of

these parts.

WARNING

Risk of explosion due to electrostatic charge

To prevent the build-up of an electrostatic charge in a hazardous area, the key cover must

be closed during operation and the screws tightened.

The key cover may be opened temporarily at any time for the purposes of operating the

transmitter, even during plant operation; the screws should then be tightened again.

NOTICE

Electrostatic-sensitive devices

The

device contains electrostatic-sensitive devices (ESD). ESD can be destroyed by voltages

far too low to be detected by humans. These voltages can occur if you simply touch a

component part or the electrical connections of a module without being electrostatically

discharged. The damage to a module caused by overvoltage cannot normally be detected

immediately; it only becomes apparent after a longer period of operating time has elapsed.

Protective measures against the discharge of static electricity:

● Make sure that no power is applied.

● Before working with modules, make sure that you discharge static from your body, for

example by touching a grounded object.

● Devices and tools used must be free of static charge.

● Hold modules only by their edges.

● Do not touch connector pins or conductor tracks on a module with the ESD notice.

Safety instructions

2.2 Use in hazardous areas

SITRANS P, DS III series with HART

16 Operating Instructions, 09/2012, A5E00047092-08

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Siemens SITRANS P Instruções de Operação Página 18