Doc. Ref.No: Q875-0143/ENG
Issue 2
Met 30+ Operating Manual
12/01/10
4.4 Timer
Setup
Note: The reject timer configuration for a pharmaceutical, waferthin, vertical
fall and pipeline system are correctly configured in the factory and should not
be amended.
Every product has a timer associated with it. This timer is responsible for deciding
when the reject mechanism should be activated after metal contamination has been
detected by the software.
When a new product is created the timer values for the previous product are copied
into the new product. If the new product is a different size to the previous one, it may
be necessary to adjust some of the timer values. The values can be changed in the
‘Adjust reject timer’ option in the ‘Using The Software’ section of this manual. Please
read this before proceeding.
There are two parts to this:
1) Timer configuration: The first is to tell the detector what sort of system is
connected to it, i.e. whether it is variable speed and whether there is a product gating
photocell or not. To tell the detector about the system connected to it, enable the
relevant timer inputs and adjust their polarities according to the instructions in the
subsection entitled ‘Configure system’ in the ‘Using The Software’ section of this
manual. This should already be set up if the conveyor and reject mechanism has
been supplied by Lock.
2) Timer values: The second step is to set the correct timer values to reject the
correct product as follows:
Press SELECT. As before you should be asked to enter the security code. The
factory default setting for this is 3000. Using the and keys the reject timer menu
is available under (r) Adjust reject timer. The timer configuration menu is available by
selecting the (e) Engineering setup menu and scrolling through the available options
until (c) Configure system is found.
There are two basic situations with regard to setting timer values: either there is a
synchronising photocell, or there isn't. Other variations will be discussed later.
File Name: Q875-0143 ENG Iss2 Met30+ Operating.doc
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