Commissioning, Operation - WIKA FLRU-SFI Betriebsanleitung

5. Commissioning, operation

5. Commissioning, operation
Personnel: Skilled personnel
Before installation, commissioning and operation, ensure that the appropriate instrument
has been selected in terms of scale range, design, explosion protection and specific
measuring conditions.
Observe all instructions given on the shipment packaging for removing the transportation
safety devices, remove the level transmitter carefully from the packaging and check it for
any damage that may have been caused. Obvious damage must be reported immedi-
ately.
Information
Avoid putting any mechanical loading on the electrical connections and on
the cases. Connections must only be opened once the instrument has been
depressurised and has cooled down.
The FLRU-SFI level transmitter, ignition protection type Ex i, in Ex areas of zone 0/1 (float
and guide tube in zone 0), must only be connected to certified intrinsically safe control
circuits. The maximum operating data must be observed.
Instruments with powder coating, plastics or adhesive product labels > 500 mm
cases must not be used in areas in which there are processes that generate strong charg-
es, mechanical grinding or cutting processes, the spraying of electrons, e.g. in the vicinity
of electrostatic painting equipment, or pneumatically conveyed dust removal occurs.
Equipotential bonding
The instrument must be connected to the equipotential bonding of the plant.
Chemical reactions or self-igniting processes can only come from the medium itself,
not from the instrument. The danger of ignition of the medium itself must be taken into
account and prevented by the operator.
High or low temperatures and/or high pressures inside the vessel affect the safety param-
eters of the substances that occur. If pressures or temperatures in the non-atmospheric
range occur inside the vessel, then the operator must check for themself what influence
these conditions have on the safety-related parameters of the substances that occur, and
what direct ignition hazards result from this.
WIKA operating instructions, model FLRU-SFI
EN
2
on metal
17