18
6.2 Selection of Operation Variants
The printed circuit board behind the front plate includes a potentiometer. It is used to
adjust the separation time after metal detection.
At supply, the device is adjusted for an average
separation time of approx. 1 sec .
The separation time should be adjusted according to quality and flow speed of the
material to be handled.
Once metal was detected, the sorting gate - depending on the potentiometer
position - remains in discharge position for 1 to 5.0 sec before being returned to the
OK position. (see chapter 8.5)
In case of too short separation time (see above) and slowly moving material, it may
happen that the sorting gate has returned to the starting position (conveying
position) before the detected metallic particle passes the gate. In a case like that,
metal separation is not possible.
The longer the separation time is, the more the loss of OK material increases. In
case that the factory setting is not the users most favourable one, the best setting
has to be determined during operation. Otherwise, the factory setting should be
kept.
