PREO EASY 5 Series, Руководство по эксплуатации и обслуживанию

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Section 4 - OPERATION
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© Copyright 2006 PREO SRL
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EAW530E2MV
Edition
03/2006
safe fashion. The valve also offers another advantage. It keeps the adhesive pressure
inside the manifold constant, so as to discharge that excess pressure that could
accumulate in the system when, for example, the motor continues to revolve without
extruding the adhesive.
Without the valve, the first drop of glue would be dispensed at a higher pressure
than the others when the cycle resumed.
However, with the valve, the excess pressure is automatically discharged into the
system, thus keeping the pressure of the adhesive to be applied constant.
4.13 SETTING THE ECONOMY FUNCTION
The economy function consists of lowering the system temperature to a set value so
as to keep the glue liquid, but not at working temperature. This function is useful if
the line is to be stationary for any length of time (change of format or break).
Resuming work is speeded up and the adhesive does not stay at working
temperature for any length of time without being stirred.
Press the selector for several seconds, until ECONOMY appears on the display
accompanied by ECO, then release it immediately in order to activate the economy
function. The machine will lower all the temperatures by 40°C and the temperature
regulation process will be based on the new value, displaying the set-point
temperature less the 40°C of the economy function on the display.
Press the selector for a few seconds in order to restore normal operation.
4.14 SWITCHING THE SYSTEM OFF
Turn the main switch to position 0, as illustrated in figure 22, in order to turn the
system off completely.
Figure 22