Meler Micron PUR LC, Инструкция по эксплуатации

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MELER GLUING SOLUTIONS
4-2
MELTER OPERATION
Air- tight tank lid
Micron PUR equipment comes with an air-tight tank lid. This tank lid is useful
when the equipment is used with P.U.R. adhesives. As mentioned in previous
sections, these adhesives require a completely dry environment before being
applied as they deteriorate when they come into contact with humidity in the
atmosphere.
The dry environment is achieved thanks to the incorporation of an air dryer
that make possible the conservation of the adhesive without hardening
premature inside the system of application of the unit.
For safety measures the system incorporates an inductive sensor that detects
if the outer lid is opened or closed. When this outer lid gets up or when there
is a cut in the electrical supply the exhaust valve opens, consequently pressure
inside tank becomes the atmospheric one. The connections of the system can
consult in the corresponding chapter ‘Electrical drawings‘.
Opening the air-tight tank lid
If you need to open the air-tight tank lid the system acts as follows:
1. When the system detects the outer lid has been opened, by means of
the lid detector, it automatically release the pressure of the tank to
assure a safety handle of the air-tight tank lid.
De-pressurization is done through an exhaust valve, connected directly to the
outer ambient. Then, the air-tight lid can be opened safely.
For the Micron PUR LC equipment:
2. Turn the handwheel on the air-tight tank lid counter-clockwise (2) until
it is released.
3. Use the handle to lift the air-tight tank lid (3).
4. To close the air-tight tank lid, use the handle to lower it (3) and then
turn the handwheel clockwise to lock it (2).
5. Close the outer lid.
For the Micron PUR MC equipment:
2. Turn the handle anti-clockwise sense until the position shown in the
2
3
1
outer lid
air- tight tank lid
magnetic sensor