Operating Instructions FLOWSIC100
Gas Velocity Monitor
Product Description
8012513/03-2008 © SICK MAIHAK GmbH · Germany · All rights reserved 19
2.3 System Components
2.3.1 FLSE100 Sender/Receiver Unit
The sender/receiver unit consists of the electronics, connector, duct probe, and transducer.
These modules are available in different versions that can be combined on the basis of the
relevant application data to produce the optimum configuration for the application in
question.
Fig. 2.5: Schematic diagram with modules of the sender/receiver unit and flange with pipe
The modules are selected on the basis of the following criteria:
• Gas temperature
The choice of material (steel / titanium) for the duct probe and the choice of transducer
type (standard / internally cooled) is determined by the decision, whether or not the
sender/receiver unit can/must be operated with or without internal cooling air
• Gas composition (corrosive / slightly corrosive or not corrosive)
The duct probe and transducers are selected on the basis of their resistance to corrosion
(probe made from stainless steel / titanium, transducers made from titanium / hastelloy)
• Duct diameter, sound dampening, dust content
The transducers are selected on the basis of the required transmitter power (medium
power / high power)
• Dust properties
Purged or unpurged sender/receiver units are selected. Purged sender/receiver units
are only needed if it is necessary, to prevent contamination with sticky dust.
• Wall and insulation thickness of the gas duct
The duct probe and the flange with tube is selected according to the nominal length
(graded standard lengths). Other lengths can be supplied on request.
• Assembly type
On two sides, each with a sender/receiver unit at the opposite duct walls, or on one side
with one sender/receiver unit (single-probe version)
• Flange size
Small or large flange dimensions
(pitch diameter of the mounting holes 75 mm, 100 mm or 114mm)
• Internal duct pressure
Pressure-resistant versions must be used with pressures greater than 100 mbar (see OI
FLOWSIC100 PROCESS)
• Certification requirements
Qualification tests for emission measurements, explosion protection requirements,
pressure stages (also see OI FLOWSIC100 PROCESS),
Electronics unit Connector Duct probe Transducer (Flange with pipe)
Purge-air connection (only for purged versions PM, PH, PHS)
Cooling-air connection (only for internally cooled versions MAC, HAC
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