Safeline Signature, Operating And Instruction Manual

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TECHNICAL SPECIFICATION
4618 - 021 7
Internal Counters
Reiect Counter
Counts reject relay operations, not the number of
detections, or the number of rejects.
Counter range 0000 to 9999
This counter is resettable from the control panel.
Pack Counter
This counter requires that an external pack sensor
be fitted.
Counter range 00000000 to
16,777,214
Maximum count rate 3000 packs/min at a
pack/space ratio of 1:1.
This counter is resettable from the control panel.
Note. When the maximum counter value is reached,
the next increment will change the digits
to *.
Spherical Sensitivity
Dependent on aperture size, and frequency of
operation, all sensitivity information is expressed in
diameters of spherical samples.
Non spherical objects such as wires will exhibit an
orientation effect, ie. they can be more easily
detected in certain axis. If the diameter of the wire
is less than the spherical sensitivity setting the
sample may not be detected in all orientations.
Sensitivity Ratios
Dependent on frequency of coil system e.g. at
300 kHz
Non Ferrous x 1.1 to 1.3 Fe diameter (depending on
the metal)
Stainless Steel x 1.2 to 1.5 Fe diameter (depending
on type, most difficult to detect is type 316)
Sensitivity Gradient
Less than two diameters.
This is the difference in sensitivity measured at the
centre of the aperture and the sensitivity at any
other point in the aperture not closer than 10 mm to
the surface.
Timer Ranges
Timer type
tm1
Type: Simple reject timer.
Reject time has a range of 50 ms to 60 s.
Timer types
tm2
and
tm2G
Type: Fixed speed delayed reject timers.
Reject time has a range of 50 ms to 60 s.
Delay time has a range of 50 ms to 60 s.
(0 ms delay time is also possible)
Timer types
tm3
and
tm3G
Type: Variable speed delayed reject timers.
Signal shift with a range of 1 to 128 speed sensor
pulses.
Reject shift/time with a range of 1 to 256 speed
sensor pulses or 50 ms to 60 s.