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FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH
For your safety
2.3.4
Hazards through electrostatic discharges
The electronic housing of the sender/receiver units and the optionally available spool piece
are painted by the manufacturer with a layer thickness of max. 0.2 mm as standard.
2.4
Retraction mechanism of the sender/receiver units
The retraction mechanism serves to remove and fit complete sender/receiver units of the
FLSE100-XT for maintenance or replacement without relieving pressure in the pipeline in
which the measuring system is fitted. Sender/receiver units with ball valve must be
installed to use the retraction mechanism.
This allows maintenance work without having to interrupt the process.
WARNING:
Ignition hazard through electrostatic discharge
Ignition hazards through electrostatic discharges exist when FLSE100-XT
sender/receiver units with special paintwork and a layer thickness > 0.2 mm
are used in applications with ignition group IIC according to ATEX and IECEx.
▸
For installation, the risk of electrostatic charging of the surface must be
reduced to a minimum.
▸
Use appropriate caution when performing maintenance and cleaning work.
For example, the surfaces should only be cleaned with a damp cloth. The
respective devices will be identified by the manufacturer with a warning
sign.
WARNING:
Hazard through incorrect use of the retraction mechanism
The retraction mechanism may only be used when the sender/receiver unit is
fitted with a ball valve. The retraction mechanism must not be used when a ball
valve is not installed.
Only operate the retraction mechanism within the following pressure ranges:
● Maximum operating pressure
– For use of the retraction mechanism: 0.5 bar (g)
– With additional fitting tool (SICK Service only): 8 bar (g)
● Temperature range:
For health and safety reasons (high/low temperatures), SICK recommends
only operating the retraction mechanism in the temperature range
0 °C ... 70 °C.
WARNING:
Hazardous gas (possibly explosive or toxic)
Small gas quantities escape during the removal and installation of the
transducer assemblies. When used correctly, the gas amount enclosed in the
retraction nozzle is max. 0.81 dm
3
with F1F-P and max. 0.27 dm
3
with F1F-S,
F1F-M and F1F-H.
▸
Personnel performing tasks on plants with poisonous or other gases
dangerous to health must use suitable safety equipment to prevent
personal injuries.
WARNING:
Hazardous gas (possibly explosive or toxic)
The retraction nozzle of the sender/receiver units has a connection for optional
venting.
▸
This connection is closed with a dummy plug at the factory.
▸
The dummy plug may only be removed when a venting valve is installed,
