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Operation
Installation
Additional requirements for
Category 3 / Division 2 and
Category 2 / Division 1
30233018C Quick Pit for PFK9-series, sizes D/E/ES
▲ Prevent the build-up of static electricity. Always wear suitable working clothes when
operating or performing service work in a hazardous area. Avoid strong mechanical
rubbing of the powder-coated surfaces against any material when operating in
Category 3, Division 2 and Category 2, Division 1
– Do not use protective coverings for the devices.
– Avoid damage to the system components.
– If system damage occurs, the system must be put out of operation immediately.
– Damaged system components must be replaced immediately.
▲ Only install or perform maintenance work on the weighing system in hazardous areas
if the following conditions are fulfilled:
– The intrinsically safe characteristic values for Category 2 and Division 1 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.
▲ Lay cabling fixed and securely, bending radius > 15 x cable diameter.
▲ Do not cut through cables.
▲ The explosion protected PFK9-series high precision weighing platforms may only be
operated in hazardous areas in conjunction with weighing terminals that have the
appropriate approval and interface specification.
▲ The connection cable may not be separated from the weighing terminal while it is
energized.
▲ To tighten the hexagon nut of the M12 connection cable with an appropriate tightening
torque see the product's installation manual.
▲ Before setting up the system secure the connection between weighing terminal and
weighing platform.
1.3 Type approval document
Mechanical assessment
2
Scope of delivery
➜ Check the scope of delivery for completeness:
– Pit frame
– These installation instructions
– 4 threaded rods M10
– 4 nuts M10
Category 3 / Category 2
BVS 15 ATEX H/B 002
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