What is IR TEC?

What is IR TEC?

IR‑TEC International is an ISO‑9001 and ISO‑14001 certified company that has been designing and manufacturing a variety of sensors and control devices for building security and energy management since 1982. We cordially invite you to experience the excellence from IR‑TEC, the premier sensor specialist.

What is PIR occupancy sensor?

Occupancy sensors use different technologies — including passive infrared (PIR), ultrasonic and dual-technology — to detect the presence or absence of occupants in a space. PIR sensors detect occupants’ presence by sensing the difference between heat emitted by moving people and background heat.

What can set off a PIR sensor?

What are some of the top causes of false alarms for motion sensors?

• Flying or crawling insects; spiders like to make homes in corners and anchor their webs to the sensors.
• Pets.
• Curtains or plants blown by air conditioning or heaters.
• Low batteries.
• Ceiling fans.
• Objects moving near motion sensors.

Where are occupancy sensors used?

An occupancy sensor, that automatically turns lighting off within 30 minutes, must be installed in classrooms, conference rooms, break rooms, storage rooms, printing rooms, private offices, restrooms, and dressing rooms.

How does occupancy sensor works?

Occupancy sensors that rely on ultrasonic technology send high frequency sound waves (that humans can’t hear) into an area and measure reflection patterns. When the pattern changes, the sensor considers the space occupied.

Does PIR only work at night?

Security lights with a dusk to dawn sensor, meanwhile, will only work at night. Some lights are always-on during lower light, while others include the PIR motion sensor. So, you only have the light switching on when it’s dark and when motion is detected.

Can a rat set off a motion detector?

Homeowners with pets should be certain the home security system has sensors that are “pet- friendly,” as pets that are free to roam the house will trigger motion detectors and activate a false alarm. Rodents and insects can also trigger alarms.

Can a flashlight set off a motion detector?

As I briefly mentioned before, lights and light bulbs will only impact one type of Motion detector and potentially set off a false alarm. These motion sensors look for changes in Infrared Radiation to decide whether or not there is motion. Infrared Radiation is also known as heat.

How many types of occupancy sensors are there?

Occupancy sensors use four types of signals to detect the presence of people: infrared radiation (sensors that detect heat), ultrasonic waves (sensors that detect shifts in sound waves), microwaves, and acoustics.

What is the range of IR sensors?

Maximum range of IR sensor is. 2.8V at 15cm to 0.4V at 150cm with a supply voltage between 4.5 and 5.5 VDC. It is depend on which type of IR sensor you use and how you use.

How do IR sensors work?

IR sensors like all other photosensor works on the principle that a photon of sufficient energy can knock out electrons so that the resistance of the circuit is changed. An IR sensor consists of an emitter, detector and associated circuitry.

How does IR sensor work?

An IR sensor is basically a device which consists of a pair of an IR LED and a photodiode which are collectively called a photo-coupler or an opto-coupler. The IR LED emits IR radiation, reception and/or intensity of reception of which by the photodiode dictates the output of the sensor.

What are IR sensors?

An IR sensor is a device that detects IR radiation falling on it. Proximity sensors (used in touchscreen phones and edge avoiding robots), contrast sensors (used in line following robots) and obstruction counters/sensors (used for counting goods and in burglar alarms) are some applications involving IR sensors.