Garrett MT 5500 User Manual page 34

10.12 READY LIGHT
The green READY light, located at the top center of the Control Panel indicates that the MT 5500 is
operating. When the green light is showing, power has been turned on and the unit is prepared to
detect metal.
The green READY light must always be on before anyone is permitted to enter the archway for
inspection.
The green light will "wink" whenever anyone breaks the IR beam across the archway or whenever
there is a noise "spike." If the green READY light should ever go off and remain off, however, the
operator should immediately press the OPERATE touchpad. The detector will then institute a self-
test program with results reported on the LCD display. All traffic through the unit must be halted until
the green READY light again appears and remains constant.
10.13 DIAGNOSTIC PROBLEMS
Operators should follow instructions of supervisors concerning their response to any faults ever dis-
covered by the MT 5500 in its self-diagnostic program. Two situations that can be immediately reme-
died by operators will be indicated by Error 3 and Error 4 on the LCD Panel.
• IR Fail (Error 3): Some obstruction within the unit may be blocking the optical sensor that projects
across the archway. Operator should make certain that the openings for the optical sensor on each
side of the archway, approximately 30 inches from the floor, have not been blocked in any way.
• Receiver Balance (Error 4): This problem could be caused by the presence of a large metal
object that has been placed near the unit. Operators should look for such an object and move it.
Even though these actions may temporarily solve the problems discovered by the self diagnostic pro-
gram, supervisors should be notified.
While the detector is operating, if a test ever shows a failure that severely limits or prohibits accept-
able performance of the unit, the alarm will sound and the LED display will flash. This flashing will
continue until power is removed or the cause of failure is corrected.
10.14 RESPONDING TO ALARMS
When an alarm sounds and the red ALARM light(s) go on, the person passing through the detector
at that time must either be scanned immediately with a SuperScanner or SuperWand hand-held
metal detector or asked to walk through the unit again after removing metal objects from body and
clothing. The multi-dimensional natures of the MT 5500 will help locate the position of the metal
causing the alarm. The audio and alarm light indicates the side (left, right, center/balanced) that the
offending target is located. This allows the operator to search this area first. It is important that after
the offending target is located, the operator completes the search of the individual to verify no other
targets exist.
If an alarm sounds after the person has removed metal objects, hand scanning is mandatory to find
the source of metal sounding the alarm. This metal must always be found before a person can be
allowed to proceed.
An operator should take nothing for granted. The source that causes any alarm must be discovered.
If a concealed weapon is ever fond, the operator should follow instructions that have been given by
supervisors.
© 2006 GARRETT METAL DETECTORS
MT 5500
User Manual
34 PN 1530200.F.0506