Alfa Laval Alfie, Инструкция по эксплуатации

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4 Description of main parts
7. Motorised regulating valve
For maintaining the correct counter
pressure in the outlet line (ca. 100 - 180
kPa). The valve is regulated by the control
unit (9).
8. Collecting tank (20 litres)
Collects the oil separated out from the liquid.
The tank stands on a support under the
separator which is held in its upper position by a
spring with adjustable tension (••). This spring
is adjusted by the handle on the underside of
the support. When the collecting tank is nearly
full the weight will overcome the spring tension
and a limit switch is actuated. The signal goes
to the control unit (9) which stops the pump (4).
An alarm alerts the operator.
9. Control cabinet (further described in
chapter 6 Control Cabinet on page 21 ).
The control system supervises the starting
and stopping of the cleaning unit. It also
supervises system functions such as:
- frequency converters, one for the
separator and one for the pump.
- motor load
- bowl hood interlock
- amount of liquid in the collecting tank
- counter pressure at outlet
The red alarm light on top of the Control cabinet
(10) indicates if there is any problem with the
supervised functions. Detailed information of
the problem is presented on the operator panel.
See
6.3 Alarm light pattern on page 28
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