Multi Smoke Heat Detector
MARINE / MULTI DETECTION Marine Multi (Smoke-Heat) Detector
Modern marine and industrial environments require fire detection systems that can respond reliably to both smoke and temperature variations. In areas where fire characteristics may change rapidly, combining multiple detection principles within a single device significantly improves safety. The Marine Multi (Smoke-Heat) Detector is designed to provide dependable early fire detection by simultaneously monitoring smoke and heat conditions in harsh operational environments.
An addressable point detector combining optical smoke sensing and thermistor-based heat monitoring for marine and industrial fire detection systems.
Two Detection Principles Within One Addressable Device
Marine Multi (Smoke-Heat) Detector – NE-M-40814 combines smoke and temperature monitoring in a single point-type addressable detector. Its smoke channel uses optical light scattering and transmission, while its thermal channel relies on a temperature-sensitive thermistor.
Monitoring these two fire indicators in parallel broadens the detector’s response capability across different fire-development conditions. The supplied source identifies the unit as certified to TSE EN 54-5 and TSE EN 54-7, covering its heat- and smoke-detection functions.
Addressable Monitoring and Alarm Communication
The detector communicates digitally with the fire alarm control panel through an addressable interface. During normal operation, the specified quiescent current is less than 7 mA, supporting low-current operation within the detection loop.
Status is indicated by two red LEDs. The source specifies periodic flashing during standby and continuous illumination when an alarm condition is active. Once the detector enters alarm, it remains in that state until a remote reset command is issued by the fire alarm control panel.
Fire Detection Smoke
+ Heat
Optical Smoke Sensing Supported by A1 Heat Detection
The smoke-sensing element evaluates airborne fire products using optical light scattering and transmission. Alongside this channel, a thermistor monitors temperature changes to provide an independent thermal detection function.
The heat channel is specified as A1 class according to EN 54-5. This combined architecture allows the detector to supervise conditions where smoke may be the first indication as well as situations where temperature rise becomes the relevant fire signature.
Marine Multi Detector Highlights
Smoke + Heat Monitoring
Optical smoke sensing and thermistor-based heat detection are integrated within the same addressable detector.
Addressable Communication
Digital communication connects the detector with the fire alarm control panel for status and alarm handling.
Low Quiescent Current
Normal operating current is specified at less than 7 mA.
A1 Heat Response
The thermal detection function is classified as A1 in accordance with EN 54-5.
Dual LED Status Indication
Two red LEDs provide visible standby and alarm-state indication.
Marine-Oriented Construction
The supplied source specifies moisture- and corrosion-resistant materials, an impact-resistant casing and a protected external chamber.
Marine Multi Detector Functions
Optical Smoke Channel
- Principle
- Light scattering and transmission are used to detect smoke within the sensing chamber.
- Purpose
- Provides a smoke-based fire indication as part of the combined detector architecture.
- Chamber
- The source specifies a protected external chamber designed to support smoke flow and insect resistance.
Thermal Detection Channel
- Sensor
- A temperature-sensitive thermistor provides the detector’s heat-monitoring function.
- Class
- The thermal channel is specified as A1 according to EN 54-5.
- Role
- Supports fire recognition through temperature response when heat becomes the relevant indicator.
Control Panel Interface
- Communication
- The detector uses addressable digital communication with the fire alarm control panel.
- Alarm State
- After activation, the alarm state is retained until the control panel issues a reset command.
- Installation
- A plug-in base supports quick mounting and detector-head replacement.
Application Areas
Smoke and Heat Detection Standards
The supplied technical material identifies the Marine Multi (Smoke-Heat) Detector – NE-M-40814 as certified to the TSE EN 54 standards listed here. These references correspond to the detector’s heat- and smoke-detection functions.
Frequently Asked Questions
01 What operating voltage is specified for the Marine Multi Detector?
The technical data specifies an operating voltage range of 22–26 V DC.
02 Which heat response class does the detector use?
The heat-detection function is specified as A1 class according to EN 54-5.
03 How is detector status shown locally?
The source specifies dual red LEDs, with periodic flashing in standby and steady illumination during an alarm condition.
04 What installation interface is listed for the detector?
The technical table lists a plug-in base designed for quick mounting and detector-head replacement.
05 Which standards certify the smoke and heat functions?
The supplied source lists TSE EN 54-5 for heat detection and TSE EN 54-7 for smoke detection.
Technical Data
Need More Information About This System?
Contact our team for Marine Multi (Smoke-Heat) Detector specifications, installation requirements and application-specific fire detection configurations.