THE CURE FOR THE COMMON FALSE ALARM
Aren't we tired of hearing vehicle alarms blaring for no apparent reason? They are extremely irritating and they intensify our noise pollution but, far worse when the day comes that you need to be alerted, you probably wouldn't take an alarm like that seriously.
At Sanji we take this matter very seriously. So that's why we developed the super miniature ES250 ultrasonic sensor. The sensor works like an internal radar system, continuously sending and receiving information about your vehicle's interior. After careful analysis of the received data, the ES250 makes a decision to activate the alarm or reject the data in the case of common air disturbance. The ES250 sensor is so advanced that a patent on its electronic design has just been granted.
ES250 Miniature Ultrasonic Sensor
The Sanji ES250 uses patented technology to discriminate between false alarms and real intrusions. The ES250 continually monitors
the size and the speed of the moving object and if both fall into pre programmed parameters the ES250 will sound the alarm.
There are many reasons for false alarms but the most common and the one that most ultrasonic sensors do not address is the problem of rising air bubbles. On a hot day air bubbles form inside the vehicle and begin to rise. As they rise they tend to reflect the 40 KHz signal and it appears to the sensor that an intrusion has occurred. The Sanji ES250 is very smart in that it will measure both the speed and the mass of these air bubbles and based on its intelligence it will be able to reject these as genuine intrusions. Although the Sanji has this capability it is still highly recommended that the vehicle windows remain closed at all times.
SPECIFICATIONS
Voltage
:
Min 6V, Max 24V Nom 12V
Detection Method
:
Doppler shift / mass + speed
Output
:
Open collecter (protected)
Output Pulse
:
300 ms Min (pulse latched with disturbance)
Wiring
:
Red +12V, Black Gnd, White Neg Trigger
Weight
:
80 g (including harness)
Current
:
9 mA
Output
:
Sink 50 mA max
Carrier
:
40 Khz
Cable
:
3 core, 3m
Operating Temperature
:
- 40 C to + 85 C
Mount
:
Universal mount bracket
ES250 back view
The ES250 sensor is completely portable and has a built in connector plug that facilitates easy fitment and replacement. In the event of replacement a new unit can be plugged in instead of opening up the dashboard as would be the case with competing products.
The ES250 can be mounted in canopies to protect those who carry tools and equipment.
