Notifier FDX-551R Rate-of-rise Temperature Sensor

The Notifier FDX-551R Series are analogue addressable, low profile Thermal smoke sensors designed for use with any NOTIFIER protocol fire alarm control panel. Also, the sensors measure thermal levels caused by fire and report the analogue value of the thermal measurement to the control panel. Besides, the use of analogue information provides significant benefits to the end-user, installer and serviceman in ways that are not possible with a conventional type system.

In general, these analogue addressable sensors enable the control panel to quickly provide the operator with a pinpoint description of the location of a fire in its early stages. In addition, the Notifier FDX-551R Series plug-in Thermal sensors use a common base to simplify installation, service, and maintenance. Furthermore, a special tool allows maintenance personnel to plug in and remove detectors without using a ladder. Mounting hardware together with installation instructions are provided with each device.

Features / Specifications

• Dual thermistors
• Fixed Temperature, Fixed High Temperature and Rate-Of-Rise models
• Uses common sensor base
• Analogue addressable communication
• Stable communication technique with high noise immunity
• Rotary DECADE 01 to 99 address switches
• Remote LED output as standard
• Dual LED design provides a 360° viewing angle
• Visible LED’s blink every time the detector is addressed (optional), as well as illuminate steady on the alarm
• Built-in functional test switch activated by an external magnet
• Optional Relay, Isolator, or Sounder Bases
• Tamper-resistant feature

Download the Specification sheet in .pdf format

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