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FLOWSIC600 · Technical Information · 8010125 V 4.0 · © SICK AG
Product Description
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2.2.2
Ultrasonic transducers
The FLOWSIC600 ultrasonic transducers are optimized to suit your application require-
ments. The high quality of the transducer design provides the basis for accurate and highly
stable propagation time measurements with nanosecond precision. These transducers are
of an intrinsically safe design ("ia", with Equipment Protection Level Ga).
2.2.3
Signal processing unit
The Signal processing unit (SPU) contains all the electrical and electronic components for
controlling the ultrasonic transducers. It generates transmission signals and analyzes the
received signals to calculate the measuring values. The SPU also contains several inter-
faces for communication with a PC or standardized process control system.
The volume counters, log books (errors, warnings, parameter changes) and datalogs are
stored in non-volatile data memory (FRAM) together with a time stamp (Logbooks
.) On system restart, the counter readings that were last saved are restored as the start
values for the volume counters. The FRAM backup provides an unlimited number of writing
cycles and protects the saved data for a minimum of 10 years.
The SPU is equipped with a front panel containing a two-line LCD to display current
measured values, diagnostics and logbook information (
). An LED display is
optionally available. The values to be displayed can be selected using a magnetic pen with-
out removal of the window cover (for details on operation and menu structure
).
Figure 6
FLOWSIC600 front panel LCD
The power supply and interface terminals are located on the back of the SPU in a separate
terminal section of the enclosure (
The electronics are mounted in the SPU enclosure certified to EN / IEC 60079-1 with
protection type "d" (flameproof enclosure). The transducer circuits are of an intrinsically
safe design ("ia", with Equipment Protection Level Ga).
Measured values
Control buttons for the magnetic pen
Control buttons for manual use
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