Assembly and Installation
FLOWSIC100 · Operating Instructions · 8012513/YSA5/V2-1/2016-07 · © SICK Engineering GmbH 75
Subject to change without notice
3.2.9.2 Dust protector for FLSE100-PR
The optionally available dust protector PR can be used when dust contamination on the
transducer surface of the single-probe version FLSE100-PR causes a problem. This option
is designed to prevent possible contamination of dust on the ultrasonic transducers. It
comprises the components ‘‘right dust protector” and ‘‘left dust protector”. Fit the
components to the downstream sides of the transducers in accordance with Fig. 46.
Fig. 46 Fitting of the dust protector option on type FLSE100-PR
3.2.10 Installing the structure-borne noise damping set option K100/K75
In some installations, vibrations in the resonance range of the ultrasonic transducer come
from the system over the flange to the sender/receiver units and therefore have an effect
on the transducer and create interference signals (direct acoustic coupling). The optional
structure-borne noise damping set K100/K75 can be used to prevent such disturbances. It
comprises additional gaskets, cup springs and washers as well as appropriate longer
securing bolts, which are used for fitting the sender/receiver units.
A damping set is already included in the assembly material at the factory for device types
M, H, M-AC and H-AC. The set serves to prevent coupling of structure-borne noise from the
system in the ultrasonic transducer. The assembly/damping set is delivered as shown in
Fig. 47 and is ready for installation.
The dust protector is mounted on
the securing bolts of the trans-
ducer carrier.
Dust protector
A - A
Dust protector
Transducer
A
A
Flow direction
NOTICE:
The effectiveness of the dust protector depends on the dust texture and flow
conditions in the duct and can therefore considerably vary.
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