Vega ATEX, Инструкции по безопасности

Страница: 58 / 68

4 VEGAMET 841, 842, 861, 862
61274-EN-200723
4 Application area, use in gas and dust atmospheres (zones and
divisions)
Associated apparatus for non-hazardous locations
The controllers VEGAMET 841, 842, 861, 862 may be installed and operated outside of hazardous
areas as associated equipment.
5 Special operating conditions
The following overview is listing all special properties of VEGAMET 841, 842, 861, 862, which make
a labelling with the symbol "X" behind the certificate number necessary.
Ambient temperature
You can find the details in chapter " Thermal data " of these safety instructions.
Electrostatic charging (ESD)
You can find the details in chapter " Electrostatic charging (ESD) " of these safety instructions.
Zone 2/Div 2 applications
The device must be installed in a protective housing or a switching cabinet with IP54 according to
IEC 60079-0.
The device may only be used in an area with a minimum pollution level of 2 or better, as defined in
IEC 60664-1.
6 Safe operating mode
General operating conditions
•
Do not operate the instrument outside the electrical, thermal and mechanical specifications of
the manufacturer
Connection conditions
•
The connection cable of VEGAMET 841, 842, 861, 862 has to be wired fix and in such a way
that damages can be excluded
•
If the temperature at the inlet components exceeds 60 °C (USA and Canada), temperature-
resistant connection cables must be used
7 Important information for mounting and maintenance
General instructions
The following requirements must be fulfilled for mounting, electrical installation, setup and mainte -
nance of the instrument:
•
The staff must be qualified according the respective tasks
•
The staff must be trained in explosion protection
•
The staff must be familiar with the respectively valid regulations, e.g. planning and installation
acc. to ANSI/ISA RP12.06.01 „Installation of Intrinsically Safe Systems for Hazardous (Classi -
fies) Locations“ and the National Electrical Code
®
(ANSI/NFPA 70) or Canadian Electrical Code
•
Make sure when working on the instrument (mounting, installation, maintenance) that there is no
explosive atmosphere present, the supply circuits should be voltage-free, if possible.
•
The instrument has to be mounted according to the manufacturer specifications, the Certificate
of Conformity and the valid regulations and standards
•
Modifications on the instrument can influence the explosion protection and hence the safety,
therefore repairs are not permitted to be conducted by the end user
•
Modifications must only be carried out by employees authorized by VEGA company
c-UL-us