Proreact® Programmable Temperature Linear Heat Detection

Your Challenge:
Monitoring temperature fluctuations in complex environments

In environments with fluctuating ambient temperatures, standard heat detectors can trigger false alarms or fail to detect genuine threats. You need a system that can distinguish between normal operational changes and a real fire risk. The Proreact Programmable linear heat detector provides a reliable solution by compensating for ambient temperature shifts, ensuring accuracy.

Features & Benefits
Product Codes
Resources

Features & Benefits

Key Features

Programmable Pre-Alarm and Alarm
Set a pre-alarm temperature for early investigation and a higher alarm point for confirmed threats, allowing for a managed response
Rate-of-Rise Detection
The system triggers an alarm if a rapid temperature increase is detected, providing an early warning for fast-developing fires
Up to 500m of Detection Per Unit
A single control unit can monitor up to 500 metres of LHD cable, offering cost-effective coverage for large or long areas
Automatic Temperature Compensation
The system intelligently adjusts to ambient temperature changes, maintaining the accuracy of the alarm activation point and preventing false alarms

Key Benefits

Manage Risks Proactively
The pre-alarm functionality gives you valuable time to investigate potential hazards before a full alarm is triggered, preventing costly incidents
Reduce False Alarms
By compensating for normal temperature fluctuations, the detector significantly reduces the risk of false alarms and unnecessary downtime
Pinpoint Accuracy
Cable-based sensing allows detection to be placed at the precise point of risk, ensuring threats are detected exactly where they occur
Lower Total Cost of Ownership
With low installation and maintenance costs, combined with high reliability, the system offers a cost-effective long-term safety solution

Product Codes

Proreact Programmable Activation Temperature Products

Nylon	Stainless Steel	Activation Temperature	Approvals
F3051	F3052	54°C (129°F) to 100°C (212°F)	UL, EN54, CNBOP, EN54, RoHS

Accessories for use with Proreact Programmable Activation Temperature

Part No.	Description	Compatibility
A1389	Control Unit	Programmable Activation Temperature
A1470	End of Line Unit	Programmable Activation Temperature
A1471	Junction Box	Programmable Activation Temperature
A1149-100	Ceiling / Wall J-Clip [SS]	Generic
A1362-100	Surface P-Clip [Al]	Generic
A1329-100	Surface P-Clip [SS]	Generic
A1174-100	Cable Tray V-Clip [SS]	Generic
A1175-100	Indoor / Outdoor Tiewrap	Generic
A1176-11	Indoor Tiewrap (High Temp)	Generic
A1177-100	Indoor / Outdoor Tiewrap (High Temp)	Generic
C1283-100	Silicone Sleeves	Generic

Resources

Datasheets

Installation Guides

Approvals

Brochure

Pocket Guide

Accessories Guide

Programmable Linear Heat Detections Ambient Temperature Compensation feature maintains alarm temperature accuracy when there are ambient temperature fluctuations.

As the Temperature (yellow) increases the Cable Resistance drops (green) towards the Alarm Threshold (red, dotted). The system recognises that the whole temperature cable is changing and the Ambient Temperature Compensation feature dynamically reduces the Alarm Threshold (red) to account for this change.

From the graph, with ambient temperature increases, there are several points where the alarm would normally be triggered but these false alarms are avoided ensuring that no unnecessary evacuations take place. Alarm point detection is independent of Ambient Temperature Compensation so, in the event of a fire, the alarm will still be triggered.

What makes a programmable linear heat detector different?

Unlike fixed temperature detectors, a programmable linear heat detector allows you to set two distinct temperature thresholds: a 'pre-alarm' for early warning and an 'alarm' for activation. This provides greater flexibility and control in managing fire risks.

How does the system prevent false alarms from ambient temperature changes?

The control unit continuously monitors and automatically compensates for gradual changes in the surrounding temperature. This ensures that an alarm is only triggered by a rapid temperature rise or when the specific alarm setpoint is reached, maintaining accuracy and reliability.

What is 'rate-of-rise' detection?

Rate-of-rise detection is a feature that triggers an alarm if the temperature around the sensor cable increases rapidly over a short period. This allows the system to detect fast-growing fires much earlier than a standard fixed-temperature detector.

Can this heat detector be integrated with an addressable fire panel?

Yes, the Proreact Programmable control unit is designed to be compatible with any conventional or addressable fire alarm system. It can be connected to an addressable loop using a standard switch or zone monitor.

What are the ideal applications for this type of heat detector?

This system is ideal for applications where temperature conditions fluctuate or where early warning is critical. Common uses include power generation facilities, oil and gas industries, tunnels, cable trays, and cold storage warehouses.

DATASHEET

Proreact PAT Composite Control Unit Datasheet (EN)

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POCKET GUIDE

Proreact Pocket Guide (EN)

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Live sessions on specialist detection, installation, standards and best practices

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