Meler MACRO FOAM Series, Инструкция по эксплуатации, Страница: 62 / 88

FOCKE MELER GLUING SOLUTIONS, S.A.
4-28
MELTER OPERATION
Level sensor adjustments
Sensitivity adjustment
The adjustable sensitivity of the sensor, depending on the material used and
the hysteresis admitted to the operation of the vacuum feeder is factory pre-
setted and therefore it is NOT necessary to change. In most cases the factory
setting is perfectly valid to use the vacuum feeder.
If it is necessary to correct the adjustment contact the Technical Services
Meler or Area Representative.
Level stabilisation time
The level stabilisation time is the time that passes between when the
equipment detects that the level is too low and when the electrovalve is
activated (EV=ON) to load adhesive. This parameter is not programmable
from the timer menu; it is a set time that may only be modified by editing the
program. The default time is 2 seconds.
Programmable times using the timer
Disconnection delay time
The extra time that the loader operates after the correct level has been
reached is called the disconnection delay time. The screen shows ‘T.EV 00:00s’
and you can program the first digits in seconds and the digits after the “:” in
hundredths of a second.
Operating alarms
1. Load error alarm
Each time the load sensor detects low adhesive a safety timer is connected
(Default 90 seconds). That controls of time lap the device is charging. This
timer is resetted when the sensor detects correct adhesive level.
In case that within the scheduled time (90 seg) the level sensor has not
detected the correct level, the system assumes the existence of a failure in the
loading circuit and connects the warning signs:
- Beep buzzer.
- Amber light blinking signal in the control panel.
Both signals remain activated while they are not restarted.
Pressing the black button the acoustic signal can be overridden.