Checkweigher user’s manual
21
Fig 6-15 Rejector parameter interface
Set the parameters correctly.
The following product parameters can be set:
“
Over reject distance
”, “
Over reject time
”
Over reject distance is the distance between the end of weighing platform and the
centre of over rejector.
Over reject time is the lasting time of over reject signal.
“
Under reject distance
”, “
Under reject time
”
Under reject distance is the distance between the end of weighing platform and
the centre of under rejector.
Under reject time is the lasting time of under reject signal.
Because the belt moves fast and there is delay in reject signal transmission, in
most time the reject distance is not exactly the practical measured value. It needs to be
amended in practical application. Reject time should be suitable to guarantee that the
fail item rejected as well as the next item not be blocked. Procedure of set these two
parameters list as follow:
(1)
Enter rejector parameter interface and set an initial value of these two
parameters, normally, the reject distance should be the measured value, the
reject time be 0.5s.
(2)
Press <
Start
> in main interface.
(3)
Use fail item carrying out one test to see the actual reject situation.
(4)
Press <
Stop
>.
(5)
If the rejector takes action after the item has pass through it, it needs to
decrease the reject distance. If the rejector takes action before the item arrive
the rejector, it needs to increase the reject distance.
(6)
Repeat (2)-(5) until the item be rejected at the centre of rejector.
(7)
Put two consecutive fail items to see whether the rejector can reject the two
items.
(8)
If the rejector can’t reject the two items, decrease the reject time until it can
satisfy the need.
Press <
Next
>
Enter dynamic study interface, you can conduct dynamic study procedure
according to the information.
