Vega ATEX - Electrostatic Charging (Esd)

15
VEGAMET 841, 842, 861, 862 • Installation in Zone 2
61274-01-191219
Maintenance
To ensure the functionality of the device, periodic visual inspection is recommended for:
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Secure mounting
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No mechanical damages or corrosion
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Worn or otherwise damaged cables
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The potential equalization terminal must be secured against loosening
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Correct and clearly marked cable connections
Intrinsic safety "i"
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Observe the valid regulations for the interconnection of intrinsically safe circuits.
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The instrument is only suitable for connection to certied, intrinsically safe instruments
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If the intrinsically safe circuit is led into dust-explosive areas of zone 20 or 21, please make sure
that the instruments connected to these circuits meet the requirements of category 1D (EPL Da
instruments) or 2D (EPL Db instruments) and are certied respectively
8 Electrostaticcharging(ESD)
In case of instrument versions with electrostatically chargeable plastic parts, the danger of electro-
static charging and discharging must be taken into account!
The following parts can charge and discharge:
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Lacquered housing version or alternative special lacquering
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Plastic housing, plastic housing parts
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Metal housing with inspection window
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Plastic process ttings
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Plastic-coated process ttings and/or plastic-coated sensors
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Connection cable for separate versions
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Type label
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Isolated metallic labels (measuring point identication plate)
Take note in case of danger of electrostatic charges:
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Avoid friction on the surfaces
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Do not dry clean the surfaces
The instruments must be mounted/installed in such a way that the following can be ruled out:
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electrostatic charges during operation, maintenance and cleaning.
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process-related electrostatic charges, e.g. by measuring media owing past
The warning label indicates danger:
WARNING - POTENTIAL ELECTROSTATIC
CHARGING HAZARD - SEE INSTRUCTIONS
ATEX