3.5 Use in hazardous areas
Qualied per
sonnel for hazardous area applications
Persons who install, connect, commission, operate, and service the device in a hazardous
area must have the following specic qualications:
• They are authorized, trained or instructed in operating and maintaining devices and systems
according to the safety regulations for electrical circuits, high pressures, aggressive, and
hazardous media.
• They are authorized, trained, or instructed in carrying out work on electrical circuits for
hazardous systems.
• They are trained or instructed in maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.
WARNING
Use in hazardous area
Risk of e
xplosion.
• Only use equipment that is approved for use in the intended hazardous area and labeled
accordingly.
• Do not use devices that have been operated outside the conditions specied for hazardous
areas. If you have used the device outside the conditions for hazardous areas, make all Ex
markings unrecognizable on the nameplate.
WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If
the device or its components have already been operated in non-intrinsically safe circuits or
the electrical specications have not been observed, the safety of the device is no longer
ensured for use in hazardous areas. There is a risk of explosion.
• Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
• Observe the specications for the electrical data on the certicate and/or in Technical
specications (Page169).
WARNING
Substitution of components
Subs
titution of components may impair Intrinsic Safety.
Safety notes
3.5Use in hazardous areas
SITRANS LR500 series with mA/HART
Operating Instructions, 03/2024, A5E51099898-AA 23
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