36 Analyzer Description
CFPP Process Analyzer CFPP-4.2 03/2016
At the air service unit (9), you can check and adjust the instrument air pressure for the
buildup of the overpressure in the control box and in the measuring cell housing. The air
service unit (8) supplies the injector and the measuring cell with instrument air.
The vacuum is created by means of the injector (11) and is monitored by the vacuum
pressure switch (12). With the metering valve (3) you can adjust the supply with
instrument air for the injector. With the pressure controller (13) you can adjust the
vacuum. The vacuum pressure gauge (1) allows you to monitor the vacuum visually.
For the supply of the analyzer with always fresh product you can adjust a product flow
through the bypass by using the flow controller (6).
With metering valve (10) you can adjust a small air flow through the measuring cell.
Depending on the current process step, the magnetic valves (7) connect the feed lines of
the measuring cell with the vacuum, the product inlet or the vent.
The pressure switch for backflow detection (2) allows to determine whether the product,
after being sucked through the test filter, flows back into the sample container. The
Pressure gauge for backflow detection (4) allows you to monitor the pressure visually.
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