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Variety of Applications |
- Intruder Prevention: An alarm is activated
when an intruder enters the property or prohibited
area.
- Warning Alert: A safety warning is activated.
For example, when children go near a dangerous
area such as a swimming pool.
- Shop Entrance: A welcome message is given
when customers enter a premises.
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| The VX-402 Series utilises Multiple Detection Pattern Technology
two double-layered detection patterns (upper and lower) both
have to be activated to generate an alarm condition. This reduces
false alarms, particularly those caused by temperature changes,
light reflection and small animals. |
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Flexible Detection Range Function |
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| By limiting the detection range, false alarms due to
unwanted movement, e.g., cars, people or animals outside the protected
area can be reduced. |
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Size Judging Function |
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The size judgment function
virtually eliminates false alarms due to small animals. |
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| When only the lower zone detects a moving object,
the unit is not activated. |
When only the upper zone detects a moving object,
the unit is not activated. |
When both the upper & lower zones detect
a moving object, the unit is activated. |
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Advanced Temperature Compensation
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| At higher ambient temperatures, the difference between the
background temperature and that of a human body is reduced.
In such cases an ordinary PIR might fail to accurately detect
the human body. The VX-402 uses advanced temperature compensation
to automatically increase the detector's sensitivity under high
temperature conditions, especially where the background temperature
ranges from 35-37?C, close to that of the human body. |
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Double Conductive Shielding |
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| Patented Double Conductive Shielding Technology
utilises a special conductive filter to cover the element window,
allowing infrared energy to pass through, while blocking and
grounding out unwanted light and RFI sources. This helps reduce
false alarms caused by car headlights and reflected sunlight
in particular. |
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| Multiple
Detectors for Improved Functionality |
| For advanced functionality and reliability
without the need for a control panel, the
VX-402 can be connected to another detector,
e.g. PIR, photobeam or magnetic contact. Various
configurations are possible. |
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Wiring two VX-402 series sensors together
and selecting the "OR"Mode enables
the detection pattern to be effectively doubled.
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| By selecting the "AND" Mode and
programming which sensor should be activated
first (using DIP Switch Programming), the
VX-402 Series can sense direction and will
only be activated if motion is in a specified
direction. |
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