2 Wire Fixed Rate-Of-Rise Heat Detector For Fire Fighting Fire Alarm System

Introduction

Rate-of-rise heat detector is a type of conventional heat detector that is designed to sense an increase in ambient temperature and trigger an alarm when certain temperature thresholds are met. Here's a more detailed introduction to these types of heat detectors:

Fixed Temperature Detectors:
These detectors are designed to activate the alarm when the temperature in the surrounding environment reaches a predetermined fixed temperature threshold.
The fixed temperature threshold is typically set between 57°C to 72°C, depending on the specific application and environment.
When the ambient temperature reaches the fixed threshold, the detector's sensing element triggers the alarm to alert occupants of a potential fire hazard.

Rate-of-Rise Detectors:
Rate-of-rise heat detectors are designed to monitor the rate of temperature increase in the surrounding environment.
They are programmed to activate the alarm when the temperature rises at a rapid rate, typically around 15°F (8.3°C) or more per minute.
The rapid rate of temperature increase is an indicator of a potential fire, as it suggests a fast-developing fire scenario.
Rate-of-rise detectors are often used in environments where the ambient temperature may fluctuate, as they focus on the rate of change rather than a fixed temperature threshold.
Both fixed temperature and rate-of-rise heat detectors serve the same primary purpose: to detect the presence of elevated temperatures that could indicate a fire and trigger an audible alarm to alert occupants. The choice between the two types of detectors often depends on the specific environment and the anticipated fire risk profiles.

Fixed temperature detectors are well-suited for environments with relatively stable ambient temperatures, while rate-of-rise detectors are more effective in environments with variable temperature conditions. The selection of the appropriate heat detector type is an important consideration in the design and installation of fire detection systems.

Parameters

INSTALLATION
NOTE: All wiring must conform to applicable local codes, ordinances, and regulations.
NOTE: Verify that all detector bases are installed, that the initiating-device circuits have been tested, and that the wiring is correct.
Remove power from initiating-device circuits before installing detectors.
1. Wire the sensor base per the wiring diagram, Figure 1.
2. Install the sensor into the sensor base. Push the sensor into the base while turning it clockwise to secure it in place.
3. After all sensors have been installed, apply power to the control unit.
4. Test the sensor(s) as described in the TESTING section of this manual.
5. Notify the proper authorities that the system is in operation.

      Warning:Forbid connect 24VDC directly without current-limiting resistance. Otherwise, the detector would be burnt out.

Product range

Conventional Fire Alarm System
Addressable fire alarm system
Gas Extinguishing control system
Beam Detector
4 wire smoke detectors with relay output.
2 wire Conventional smoke and heat detectors
Explosion-proof flame detector for fire alarm system
Standalone smoke detectors and combustable gas detector

Service

1. OEM &ODM service.
2. Provide technical support and after-sale service.
3. 1 year warranty.
4. Normally 15 working days lead time.
5. Welcome sample order.