Samson TROVIS 3730-1 - Servicing explosion-protected devices; Maintenance, calibration and work on equipment

8 EB 8484-1 EN
Safety instructions and measures
Servicing explosion-protected devices
If a part of the device on which the explosion protection is based needs to be serviced, the
devicemustnotbeputbackintooperationuntilaqualiedinspectorhasassesseditaccord-
ingtoexplosionprotectionrequirements,hasissuedaninspectioncerticate,orgiventhe
deviceamarkofconformity.Inspectionbyaqualiedinspectorisnotrequiredifthemanu-
facturer performs a routine test on the device before putting it back into operation. Document
thepassingoftheroutinetestbyattachingamarkofconformitytothedevice.Replaceex-
plosion-protected components only with original, routine-tested components by the manufac-
turer.
Devices that have already been operated outside hazardous areas and are intended for fu-
ture use inside hazardous areas must comply with the safety requirements placed on serviced
devices. Before being operated inside hazardous areas, test the devices according to the
specicationsforservicingexplosion-protecteddevices.
Maintenance, calibration and work on equipment
Î Onlyuseintrinsicallysafecurrent/voltagecalibratorsandmeasuringinstrumentsforin-
terconnection with intrinsically safe circuits to check or calibrate the equipment inside or
outside hazardous areas.
Î Observethemaximumpermissiblevaluesspeciedinthecerticatesforintrinsicallysafe
circuits.
Referenced standards and regulations
DeviceswithaCEmarkingfullltherequirementsoftheDirectives2014/30/EUand
2014/34/EU.Thedeclarationsofconformityareincludedattheendoftheseinstructions.
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 positioner is
mounted (valve, actuator, valve accessories etc.).