Conventional Heat Detector Rate of Rise Orbis A1R with base @ EN54-5

A heat detector (or rate-of-rise) monitors temperature by using a single thermistor which provides a voltage output proportional to the external air temperature. It has an open-web casing which enables air to flow freely, measuring the air temperature every two seconds. A microprocessor stores the temperatures, compares them with preset values to determine whether a fixed upper limit has been reached and uses algorithms to determine how fast the temperature is increasing. Fire safety systems equipped with heat detectors offer the following benefits:

• Suitable for applications wheres smoke detectors can not be used.
• Ideal in environments that are dirty or smoky under normal conditions.
• Responds well to fast-burning, flaming fires.

Features

• StartUp: red flashing LED confirms that the detector is wired in the correct polarity.
• DirtAlert: yellow flashing LED shows that the drift compensation limit has been reached, to easily identify dirty detectors.
• SensAlert: yellow flashing LED indicates that the sensor is not operating correctly.
• FasTest: maintenance procedure, takes just 4 seconds to functionally test and confirm detectors are functioning correctly.

Product Information

• Maximum power-up time: <20 sec
• Alarm reset time: 1 sec
• Operation voltage: 8.5-30V DC
• Operation temperature: -40°C ~ +70°C
• Dimensions: 97 (D) x 36 (H) mm
• Weight: 160 gr (with base)
• EN54-7 Certified

Conventional Heat Detector Rate of Rise Orbis A1R with base @ EN54-5