Magnetic Door Holder

This Electromagnetic Door Holders are attractively designed and ruggedly constructed for easy and versatile installation. The contact plate can be adjusted to suit any door angle. These door holders come with a typical holding force of approximately 12–100kg and can hold most type of doors. Ideal for use with self-closing fire and smoke barrier doors. In application, the device releases the door when signaled by the fire alarm system, which then allows the door closing mechanism to close the door. Our Electromagnetic Door Holders also have a Manual Release Switch to release the door manually or to test the operation of the unit. Each unit is housed in high grade ABS Polycarbonate casing and has a built-in Brass Pin Instant Release that is designed for better reliability and performance. ADVANTAGES • Incorporation of Manual Release Switch. • Residual Magnetism Release Brass Pin – for instant release. • Customized holding force available upon request. • Wide angle rotatable Contact Plate. • High holding force. • Easy visible access from side and rear. • 220/240VAC version is fitted with power fuse. Specifications CATCH PLATE EXTENSION ROD MOUNTING INSTRUCTIONS...

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Smoke / Heat Detector

Model D-223 This Single Station Photoelectric Smoke Detector D-223 is a battery operated, 9V single station smoke alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings. It is designed to give early warning of developing fires by giving off an audible alarm from its built-in alarm horn. This provides precious time for escape before a fire spreads. The D-223 features a solid-state surface-mount circuitry and are designed for low power consumption, precision and stability. ADVANTAGES • Easy to install – install directly to proper location without any wiring. • Easy to maintain – minimum one year battery life under normal operation. • Easy to test – the LED alarm indicator doubles as a test button – just press it for 2 seconds and hear the alarm sound to confirm that it is working in normal condition. • Low battery warning – “unit beeps” every one minute for at least 7 days to indicate battery needs replacing. D-223 SERIES The D-223 series of photoelectric smoke detectors are designed in accordance with UL217 and EN14604, and are manufactured under the best quality control. This series also incorporates the reliability of UL-certified infrared components. Other models in the D-223 series include detectors with additional features and functions. Specifications...

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Heat Detector

Model D-103 Heat Detectors D-103 employ the principle of electrother-modynamics, the science of relation between heat and electro-mechanical works. They are professionally designed to work reliably with most fire detection system with central control equipment. These units feature a double stage fire detection by employing two distinct methods: Rate-of-Rise and Fixed Temperature, both of which are open circuits designs designed to close an electrical circuit upon activation. This Heat Detectors meet the requirement of UL521. ADVANTAGES • Double sensitivity (rate of rise & fixed temperature) • Interchangeable base • Easy installation • Double terminal wire connector • LED indication • Low power consumption • Wide voltage variation • Auto reset (rate-of-rise mode) • Durable • Interchangeable base MODE OF DETECTION i) RATE-OF-RISE Being the first stage of detection, the Detector senses the rate-of-rise of temperature around its zone of coverage. When the rate of temperature increase exceeds 6 °C within 4 seconds, the Detector instantly switches from its normally open circuit to close circuit to activate the fire alarm. At the same time, the light emitting diode (LED) is illuminated indicating its active mode. It will remain active until the ambient temperature reduces substantially enough to automatically reset it back to its open circuit standby mode (dual detection mode). Under normal day temperature fluctuations, the Detector remains in standby mode. The current consumption while in standby mode is nil, and changes to 1.5 mA when the Detector is activated. ii) FIXED TEMPERATURE The Fixed Temperature method comes into action in cases of slow smoldering fire where the temperature does not increase at the rate that would trigger the Rate-of-Rise detection. At any time when the temperature in the zone of coverage reaches a predetermined point which is factory calibrated, a snap action mechanism switches the Detector from its standby open circuit mode to close circuit mode permanently. Once this has taken place, the unit will not reset itself and the LED indicator will stay lighted. Replacement of the set is required....

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Base Smoke Detector

Designed to enable detectors to be plugged in without any need for force – particularly useful when fitting to suspended ceilings. As well as being lockable it contains no electronic parts which could be damaged during installation. ADVANTAGES • Supply voltage: 9 to 33V; Normal operating temp (no condensation or icing): 32 to...

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