Mettler Toledo SLF6 Serie Manual De Usuario página 11

SLF6-Series
Installation
Only perform installation or maintenance work on the weighing system in the
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hazardous area if the following conditions are fulfilled:
– the intrinsically safe characteristic values and zone approval of the individual
components are in accord with one another,
– the owner has issued a permit ("spark permit" or "fire permit"),
– the area has been rendered safe and the owner's safety coordinator has confirmed
that there is no danger,
– the necessary tools and any required protective clothing are provided (danger of the
build-up of static electricity).
The certification papers (certificates, manufacturer's declarations) must be present.
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Lay cabling securely so that it does not move and effectively protect it against damage.
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Only route cables into the housing of the system modules via the suitable gland and
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ensure proper seating of the seals.
Special Conditions for Safe Use
Connect the load cell with an equipotential bonding conductor to system safety ground
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if required by National Electrical Codes or National Installation Standards.
Protect the membrane around the force transmission effectively against mechanical
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damage and direct sunlight radiation.
Use only connection cables with specially tested M12 cable connectors (e.g.
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30244447 for Category 3 or 30267190 for Category 2). Using any other M12
connector will invalidate IP rating and Ex approvals!
Apply the specified tightening torque (1 to 1.2 Nm) to the female M12 cable connector.
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Do not separate the connection when the system is energized!
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Protect the M12 flange socket and the cable connector effectively against mechanical
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damage by using the assembled protective bracket.
Safety Information 7