2M Technology 2MTHWT-HMD Kullanıcı Kılavuzu - Sayfa 6
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Walkthrough Metal Detector with Single Wrist Thermal Sensor 2MTHWT-HMD
INSTALLATION CONDITIONS
I.
Stationary metal articles
The Walk-through Metal Detector (WTMD) shall be at least 50cm away from stationary or fixed big metal articles,
otherwise false alarms will be caused.
II. Movable metal articles
Movable big metal articles shall be 1 2m away from the Walk-through Metal Detector (WTMD) for fear of false
alarms, especially when the Walk-through Metal Detector (WTMD) is to be installed at factory gates or bottom
floors of buildings, the affection of rolling gates, iron security doors and grid doors shall be considered. The big
ger the area of different metal articles is, the farther the distance between the Walk-through Metal Detector
(WTMD) and them shall become.
III. Floor vibration
The floor shall be flat and firm in order to prevent the installed Walk-through Metal Detector (WTMD) from wag
gling due to walking people or moving metal articles or causing unnecessary false alarms.
IV. Electromagnetic radiation and interference
Since the double side emission / reception technology is adopted for the Walk-through Metal Detector (WTMD),
any electromagnetic interference and radiation source shall be kept away from both sides. The suggested dis
tance is 1~2m.
Possible sources with electromagnetic interference and radiation are:
Electrical equipment control box, RF equipment, computer and the peripheral equipment, video monitor,
high-power motor, high-power transformer, AC power line, thyristor control circuit (switching mode high power
supply, inverter welder), engine, machine with motor and daylight lamp with demode electronic ballast.
V. Notes when two or more Walk-through Metal Detector (WTMD)s of different series are used
When two or more Walk-through Metal Detector (WTMD)s are used together, interference will be caused, which
differs with the distance among WTMD and the selected working frequency; When installing two or more walk
through metal detector(WTMD), the automatic frequency setting function shall be enabled and the machines,
started in order. The frequency settings shall be different from each other, and the distance between Walk-
through Metal Detector (WTMD)s shall be not less than 50cm.
VI. Installation at places with wind is not allowed
The WTMD will waggle slightly in case of wind, causing false alarm during normal operation.
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