Operation & Installation Manual V12-V6 2010-05-31.doc
31/05/2010
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The lay out of the signal converter enclosure is as shown in the Figure 2-10 (seen from
above):
Figure 2-10: Electronic compartments and location of electronics
The compartment in the front contains:
Sensor driver board:
The transducers are connected to this board. This board
controls the firing and the receiving of the acoustic pulses.
Using A/D converters the signal is digitised and the information
is transferred to the processor board.
Processor board:
This board performs all the calculations and data logging and
also generates warnings and alarm signals. The calculated
values and status bits of the flow meter can be transferred to
the frequency & I/O board and/or to the Power module /
RS485. The processor board consist of a base board with an
add on module.
Frequency & I/O board:
The board accommodates 4 opto-couplers, each of which
can be used as a status output or as frequency/pulse output.
Backplane:
Connections between the other boards are made by means of
this board.
Display:
The display supports a number of information pages: 2 pages
measuring data, a page with graphic data, a page with error
data and a page with test data. Using the 4 light sensitive
buttons these pages can be scrolled
The compartment on the right side contains only a block with screw terminals, for connecting
digital output signals.
back panel
screw terminal
block
flat cable interconnection
display module
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