Linear heat detection · DTS · LIOS DE.TECT
A fibre-optic sensing cable locates temperature rises along the protected route
LIOS DE.TECT uses a sensing cable as a continuous line of heat detection in tunnels, metro systems, industrial facilities and other extensive spaces.
temperature profilerate of risealarm zonesfire-alarm-system integration
The system does not “see” flames or smoke. It measures a thermal phenomenon along the optical fibre and assigns the anomaly to a position on the route. Alarm logic can consider temperature, rate of rise and defined zones.
A fire-protection solution must be assessed as a complete configuration: readout unit, cable, topology, interfaces, documentation, tests and required approvals. Product information is not a substitute for fire-safety design.
Where does a linear heat detector provide an advantage?
Where a hazard can arise at any point along a long or difficult-to-access route.
Tunnels and metro systems
A continuous temperature profile locates the anomaly zone without distributing measurement electronics throughout the protected area.
Conveyors and cable routes
The sensing cable covers long sections where individual point detectors could leave gaps.
Warehouses and industrial halls
Zoning allows different alarm criteria to be applied to different parts of the site.
Industrial environments
Optical fibre is immune to electromagnetic interference, but its sheath and mounting method must suit the environment.
From measurement to alarm
Each layer has a separate function and its own acceptance requirements.
| Phenomenon / objective | Technology | What it provides | INTERLAB portfolio |
|---|
| temperature value | DTS / LHD | temperature profile along the cable | LIOS DE.TECT |
| rate of rise | alarm logic | alarm based on change over time | LIOS DE.TECT with zone configuration |
| anomaly location | route mapping | position and assigned zone | LIOS software |
| process temperature without a fire-alarm function | process DTS | process monitoring, not a substitute for fire detection | LIOS PRE.VENT, Silixa DTS |
Important: Compliance with standards, ATEX and other approvals must be confirmed for the exact configuration and current certificate. LIOS PRE.VENT is not presented as a substitute for DE.TECT.
Core system and supporting equipment
For a linear heat-detection function, we identify equipment intended for that application.
LHD / DTSLIOS DE.TECT
An optical linear heat-detection system for rapid location of thermal events in extensive facilities.
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Process DTSLIOS PRE.VENT
Distributed process-temperature monitoring; it is not presented as a substitute for a fire-detection system.
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CategoryDTS temperature-monitoring systems
Current distributed temperature-sensing equipment in the INTERLAB portfolio.
Explore the category →
Four layers of a correct configuration
Selecting the readout unit is only one part of the system.
Cable
Sheath, temperature range, chemical exposure, mounting and bend radii must match the site.
Zone map
Cable distance is assigned to physical sections and alarm scenarios.
Integration
Alarms are passed to the host system according to the agreed cause-and-effect matrix.
Testing
Acceptance verifies location, thresholds, circuit-fault response and configuration behaviour.
Frequently asked questions
Does LIOS DE.TECT detect smoke?
No. The system measures a temperature profile and locates a thermal phenomenon. Smoke detection is a different function.
Does the cable in the protected area require power?
The sensing cable is optically passive. The measurement electronics are located in the readout unit.
Does the system replace the entire fire alarm system?
No. It is one element of a fire-protection solution and must be correctly integrated and accepted.
How is an alarm generated?
The configuration can consider absolute temperature, rate of rise and zone assignment. Thresholds follow the project design.
Is every DTS system a fire-detection system?
No. Equipment intended for process measurement does not automatically become an approved fire-detection system.
Configure LIOS DE.TECT for the site geometry and requirements
Send us the route lengths, zones, environmental conditions, required approvals and host-system interface.
Technical sources: Luna LIOS DE.TECT · Luna LIOS PRE.VENT
