Adjustment Of Sensitivity Range; Reject And Signal Devices - Advanced Detection Systems 1200E Series Installation Manual And Owner's Manual

ADJUSTMENT OF SENSITIVITY RANGE

NOTE: In the Auto-Learn mode the sensitivity range is automatically set by
the metal detector.
The metal detector is supplied with the sensitivity range set to the
correct value for the product being inspected and the sensitivity desired.
On rare occasions the range may need altering if the metal detector has
too little or too much sensitivity. Use Menus 49 and 50.
Increasing or decreasing the range value will cause the curve of the graph
in Fig. 5 to shift upward or downward to allow for a proper phase setting.
Raising the range value will increase the metal detector sensitivity and
the curve will move downward. If the curve only partially appears on the
graph, decreasing the range value will cause the curve to shift upward.
CAUTION: Be aware that raising the range value to increase the detector's
sensitivity to metal particles will also result in the detector being more
susceptible to outside interferences such as vibration, electrical noise,
and moving metal. We do not recommend setting the sensitivity range higher
than 8.

REJECT AND SIGNAL DEVICES

Normally open (N.O.)/Normally closed (N.C.) - Outputs 1, 2, & 3 can be
configured as normally open (N.O.) for devices that require power to
operate or as normally closed (N.C.) for devices that require an
interruption of power to operate. Use the keypad and Menus 67-70.
Reset Auto/Manual - In "auto" mode, the delay and operate time will
control when the metal detector outputs are activated and reset. This
allows for unattended operation. In "manual" the operate time is disabled
and the detector must be reset with an external push-button that is
normally open. Use the keypad and Menus 57 & 59 to change from "auto" to
"manual" modes.
Reject On/Off - Enables or disables all of the detector outputs. It is
especially useful to have the reject device disabled during the product
set-up process. Use the keypad and Menus 57 & 58.
Delay Pulse/Time - After metal has been detected the metal detector output
can be delayed by timing circuits as described above. This works well for
conveyor belts that move at a constant speed. In the case of variable
speed drives or conveyors that stop and start occasionally another method
of timing is required. A pulse counter circuit is the best alternative
(see below). Use the keypad and menus 63 & 65 to select whether timing
should be controlled by the pulse counter or by the detector's internal
timers.
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