Meler MACRO FOAM Series, Инструкция по эксплуатации, Страница: 40 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
4-6
MELTER OPERATION
Hot-melt display level (optional)
If the equipment is fitted with a level detector, and the hot-melt level drops
below the programmed level (capacitive detector), a signal is sent to the
melter control which launches the following actions:
1. On-screen display (if the function is activated).
2. It closes a non-voltage output contact where the user will install the
required device (horn, light or PLC input).
Simply refill the tank and wait for the adhesive to melt enough that the sensor
sends the message that the correct level has been reached.
Display and adjustment of the working pressure
The pump pressure (in bar) is shown on the display for each pump control
card on the equipment. These pressure may be adjusted by using the up/down
arrow keys (pumping pressure, internal reference), through a voltage signal
from the main machine or by modifying the full scale (pumping pressure,
external reference). The pump pressure work must be adjusted to the
requirements of the application.
Warning : Although pressure can be selected between 0 and 85 bar it is not
advisable to operate at pressures of less than 10 bar (the flow may become
inconstant depending on the motor load) or greater than 80 bar (pump
operating at maximum pressure).
Note: for further information on adjusting working pressure, see the section
‘Modes of operation’.
Temperature adjustment
The melters leave the factory with the following set point temperature values:
• 160 °C (320 °F) for the tank, premelter and distributor.
• 150 °C (320 °F) for the hoses.
• 160 °C (320 °F) for the applicators.
• Disconnected (OFF) for the hoses and applicators.
• °C displayed
• Overheating value: 25°C
• Standby value: 40%
• Delay time: 10 min
• Timetable programs: ON
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