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NSC Sicherheitstechnik B02706-00 Discovery Heat Detector

The key difference between NSC Sicherheitstechnik's Discovery Heat Detector and ionisation and optical smoke detectors is that the Discovery Heat Detector has a common profile but has a low air flow resistance case made of selfextinguishing white polycarbonate.

The Discovery Heat Detector uses a single thermistor to sense the air temperature at the detector position.

The thermistor is connected in a resistor network, which produces a voltage output dependent on temperature. The design of the resistor network, together with the processing algorithm in the microcontroller, gives an approximately linear characteristic from 10°C to 80°C. This linearised signal is further processed, depending on the response mode selected, and converted to an analogue output.

For the European standard version of the detector, the five modes correspond to five “classes” as defined in EN54–5:2001. The classes in this standard correspond with different response behaviour, each of which is designed to be suitable for a range of application temperatures. All modes incorporate “fixed temperature” response, which is defined in the standard by the “static response temperature”. The application temperatures and static response temperatures for all response modes are given in Table 6.

In addition to the basic classification, a detector may be given an “R” or “S” suffix. The “R” suffix indicates that the detector has been shown to have a rateof- rise characteristic. Such a detector will still give a rapid response even when starting from an ambient temperature well below its typical application temperature. This type of detector is therefore suitable for areas such as unheated warehouses in which the ambient temperature may be very low for long periods.

NSC Sicherheitstechnik B02706-00 Discovery Heat Detector

The “S” suffix on the other hand indicates that the detector will not respond below its minimum static response temperature even when exposed to high rates of rise of air temperature. This type is therefore suitable for areas such as kitchens and boiler rooms where large, rapid temperature changes are considered normal.

Apollo part number 58000-400


Data Sheet

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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Modular System

Solution F1

Compact System

Solution F2

Detectors and Alarm Devices

B02700-00 Discovery Optical Smoke Detector

B02704-00 Discovery Optical/Heat Multi Sensor Detector

B02706-00 Discovery Heat Detector

B02725-00 Discovery Manual Call Point

B02750-00 Discovery Mounting Base

B07964-00 Open Area Alarm Device

B07974-00 Sounder Beacon Base

Interfaces

B02840-00 Input/Output Unit With Isolator

B02842-00 XP95 Three Channel Input/Output Unit

Part Number Index

Part Number Index

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