MAGNASCANNER PD 6500
OWNER’S MANUAL
©2000 GARRETT METAL DETECTORS, INC.
6/19/00
PN 1531100
8
2.6.
ALARMS
Both the supervisor and the operator should familiarize themselves with the PD 6500’s
audio alarms: Standard, Warble and Tamper.
2.6.1.
STANDARD ALARM
Occurs when the red
ALARM
light appears. The standard alarm indicates that an
alarmable amount of metal (according to the program and sensitivity settings) has been
detected; Garrett’s special built-in circuitry helps suppress excess electronic noise sig-
nals from a variety of sources, including X-ray monitors, horizontal synchronization and
closed-circuit television.
Metal detectors sometimes register nuisance alarms, triggered by nearby metal objects
or interference from electrical or mechanical environmental noise from large motors,
computers, fluorescent lighting or other sources. The Magnascanner’s IR Analysis is a
feature that helps minimize the occurrence of audible nuisance alarms by ensuring that
an alarm activates only if a person passes through the archway. On rare occasions a
nuisance source may trigger the alarm as a person passes through the archway. An
operator must never dismiss a nuisance alarm because there exists the possibility of a
person intentionally bumping against the detector wall and blaming the alarm on the
bump.
Therefore, if an alarm sounds when a person is passing through the archway, he/she
must re-enter the PD 6500 and/or be scanned with a hand-held metal detector.
An
inspection is not complete until the cause of EVERY ALARM is determined. There
are no exceptions.
Although no walk-through detector is immune from possible nuisance alarms, if
Magnascanner PD 6500 is installed properly, few such alarms should occur.
2.6.2.
WARBLE ALARM
Occurs when a large metal object, such as a wheelchair, piece of furniture, or metal
container, moves through or near the Magnascanner and saturates the detector’s
receiver circuits. The warble sound prompts the operator to correct the situation before
allowing anyone to pass through the metal detector.
2.6.3.
TAMPER ALARM
When the
ACCESS
touchpad is pressed, the detector beeps for about ten seconds
until a valid four-digit numerical access code is entered. If a person or object passes
through the archway during this time, an alarm will activate. If an invalid code is
entered, the message:
ACCESS DENIED
, appears, then an audible tamper alarm
sounds and normal operation resumes.
Each access attempt is indicated by an increase in the sequence code as reported on
the LCD. Any unauthorized access attempt that activates the tamper alarm is indicated
by an asterisk (*). The operator should notify the supervisor whenever a tamper alarm
occurs.
