FEATURES
4618 - 021
3
Features of your Metal Detector
Product Numbers
When installed on a product line there may be many
different types of product passing through the metal
detector at different times.
To get the maximum performance from your metal
detector these different products may require different
settings for sensitivity and the phase control. For this
purpose Safeline metal detectors can store settings
for up to 21 products. These settings may then be
recalled by the operator, as required, by selecting a
specific ‘product number’ for each product name in
the detector.
Timer Groups
Experience has shown that although there may be a
need for up to 21 product settings for the sensitivity
and phase control, the type of reject mechanism used
by the 21 products falls into one of a few groups.
Safeline metal detectors allow the engineer to set up
a reject mechanism/timer type once and associate
this with a timer group.
Individual product numbers can then be assigned to
one of these timer groups.
This means that the reject timers do not have to be
set 21 times - just once for each group.
In general, only one timer type and setting will be
required for most applications.
Timer Types
A wide range of timer types and settings are available
to the engineer.
Five different timer types are supported by Safeline
metal detectors, each type has programmable
settings.
Each timer group may be set as either of the following
timer types:
Timer
tm1
is a simple reject timer without any delay
time.
Timer
tm2
is a delayed reject timer for use in fixed
speed applications.
Timer
tm2G
is a gated version of
tm2
allowing for
more accurate rejection of discrete product.
Timer
tm3
is a variable speed version of
tm2
Timer
tm3G
is a variable speed version of
tm2G
Automatic Setup
This is a feature that allows phase control and
sensitivity, and frequency of operation (multi-
frequency option only) of the metal detector to be set
up automatically.
Product Signal Cancellation (PSC)
(option)
Phasing out a product effect signal whether manually
or automatically very often does not eliminate the
product signal entirely. The remaining signal normally
means that the detector’s sensitivity must be reduced
to eliminate the product signal entirely, and this in turn
leads to reduced performance.
Product signal cancellation aims to eliminate any
remaining product effect signal without the need for
running at reduced sensitivity.
A pack sensor must be fitted for this option.
Automatic Tracking (option)
Some products have characteristics that may vary
with time or temperature, for example, this feature will
minimise this effect by adjusting its preset settings
automatically in order to maintain optimum spherical
performance.
A pack sensor must be fitted for this option.
Inverse Detection
This feature is used in applications where the
absence of a metal contaminant, rather than the
presence of one, needs to be detected.
A gated timer must be used with this feature.
Содержание Signature
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Страница 26: ...INSTALLATION 10 4618 021 Fig 5 Typical Metal Detector Conveyor ...
Страница 31: ...INSTALLATION 4618 021 15 Fig 10 Cable Gland Assemblies for Power Supply Unit ...
Страница 52: ...OPERATING INSTRUCTIONS 36 4618 021 Fig 14 Supervisor Mode Flow Chart ...
Страница 55: ...OPERATING INSTRUCTIONS 4618 021 39 Fig 15 Engineer Mode Flow Chart ...
Страница 71: ...OPERATING INSTRUCTIONS 4618 021 55 Fig 16 Pack Sensor Mode Flow Chart ...
Страница 82: ...OPERATING INSTRUCTIONS 66 4618 021 Fig 18 QA Inspector And Operator Flow Chart ...
Страница 92: ...OPERATING INSTRUCTIONS 76 4618 021 Fig 19 Viewing Mode Flow Chart ...