Fireclass 516.052.041.YFC MD611Ex Conventional Fixed Temperature Heat Detector

Fireclass 516.052.041.YFC MD611Ex Conventional Fixed Temperature Heat Detector

The MD611Ex intrinsically safe detector uses two networked thermistors in a bridge configuration to provide a fast response, that depends both on absolute temperature and rate of rise of temperature.

This type of sensor reacts to abnormally high rates of change of temperature and provides the fastest response over a wide range of ambient temperatures. A fixed temperature limit is also incorporated in these detectors. In many environments, e.g. kitchens and boiler rooms, sudden, large changes in temperature are considered 'normal’. Rate-of-rise detectors are generally not suitable in these cases and fixed temperature static types should be used.

The MD611Ex detectors are designed to comply with EN 50 014 and EN 50 020 for intrinsically safe apparatus and are certified:

• ATEX Code: Ex II 1G
• Cenelec Code: EEx ia IIC T5

Key Features

• Intelligent Universal Smoke/Heat/CO detector
• Low profile, discreet and unobtrusive
• Superior performance and reliability
• Designed for fast, easy installation
• Optional locking kit
• May be used in systems that meet BS5839 Pt 1
• Integral and remote alarm LED
• Certified to ATEX: Ex II 1GD and Cenelec: Ex ia IIC T5/Ex iaD 20 T100oC
• Complies to EN54-7 for Smoke Detectors and EN54-5 for Heat Detectors