Samson 4749, Mounting And Operating Instructions, Page: 7 / 92

EB 4749 EN 1-3
Safety instructions and measures
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
− The mounting and operating instructions of the components on which the position trans-
mitter is mounted (valve, actuator, valve accessories etc.).
1.1 Notes on possible severe personal injury
DANGER !
Risk of fatal injury due to the ignition of an explosive atmosphere.
Incorrect installation, operation or maintenance of the position transmitter in potentially
explosive atmospheres may lead to ignition of the atmosphere and ultimately to death,
even with a harmless supply voltage.
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For mounting and electrical installation in hazardous areas, observe the explosion
protection approvals as well as the relevant electrotechnical regulations and the
accident prevention regulations that apply in the country of use. EN 60079-14
applies in Europe.
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Do not connect the electrical supply before mounting is completed.
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Installation, operation or maintenance of the position transmitter must only be
performed by personnel with qualifications according to Clause 4.5 of IEC 60079-14
who has undergone special training or instructions or who is authorized to work on
explosion-protected devices in hazardous areas.
Risk of fatal injury as a result of electrostatic discharge at the device.
An electric spark generated by electrostatic discharge may lead to ignition of a potential-
ly explosive atmosphere and cause death.
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In hazardous areas, mount the device in such a way that electrostatic charging cannot
take place.
Loss of the explosion protection due to damage to the cover's thread and/or the
connecting thread.
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Do not open devices with flameproof enclosures while they are energized.