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education design & build bulletin - August 2019

Reading Between the Lines: Is Your Multi-Sensor Fit for Purpose?
Hochiki

Reading Between the Lines: Is Your Multi-Sensor Fit for Purpose?

Multi-sensors have become a popular choice for schools, colleges and universities alike due to their almost all-encompassing fire protection. However, with the absence of standard ratification, some multi-sensors are lacking in approvals, leading to confusion over what certification multi-sensors need to be classified as a true multi-sensor.

Defined by its ability to detect multiple phenomena, as per BS 5839 Part 1 2017, some devices can achieve the same classification as these comprehensive multi-sensors, despite not being independently tested to operate as such. For example, sensors that are only tested by their ability to detect smoke but offered to operate as a sensor using smoke, heat and even CO detection.

This confusion is further hindered by certification and testing not keeping up with technological advancements as it’s only in the past few years that certification has been available that can evaluate multi-sensors in their entirety. European Standards EN54- 29 (Smoke and Heat), EN54-30 (CO and Heat) and EN54-31 (Smoke, CO, and Heat) are now available as guidelines that manufacturers can work towards, yet are still not universally used. Rather than test their products to these standards and risk missing new requirements or redesigning the product all together, it’s easier for manufacturers to prove their multi-sensors against individual criteria.

Hochiki Europe’s ACD-EN, the company’s new addressable multi-sensor with CO detection, is the solution to this and sets the benchmark for appropriate certification. With 24 EN approved modes of operation, it’s the most advanced and accredited triple-criteria multi-sensor the company has developed and brought to market to date.

For more information visit, www.hochikieurope.com/acd

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