Safety instructions
VA 550 Ex / VA570 Ex English
V1.08
Page 4 of 10
Area of application
This Ex-documentation contains special requirements for the use of flow / consumption sensors
VA 550 and VA 570 Ex Ex in gas hazardous areas which complement and modify the the
general requirements in the instruction manual.
Safety instructions
3.1
General saftey instructions
•
Existing national regulations regarding installation, electrical installation, commissiong and
maintenance of equipment in hazardous areasmust be observed.
o
ATEX-Guideline 2014/34/EU (ATEX)
o
Use of Work Equipment Directive 89/655/EEC
o
the work safety regulations / safety rules
o
any other relevant safety regulations (see also Declaration of Conformity the device)
•
Installation, electrical installation, commissioning and maintenance of the equipment must be
carried out by qualified personnel, which is trained to work in hazardous areas.
•
Connecting and disconnecting the electrical connections of the device only in strainless state
•
All the technical data oft he syensor( see nameplate) must be strictly adhered.
•
Opening of the sensor is allowed only in strainless state or in area free of explosive atmosphere.
•
To ensure the dust-tightness the sensor housing is to be close firmly.
Warning
•
When operating outside the performance data and use outside of the temperature range it may
result in malfunction of the product.
This means in the hazardous area Danger to life!
Therefore: The performance specifications and temperature ranges of the operating instructions
must be complied with.
3.2
Specific conditions
