E3 Distributed Temperature Sensing System
Core Advantages
Precise Hotspot Localization
Locates temperature anomalies along the sensing fiber with accuracy as precise as ±0.5 m, helping maintenance teams identify the affected area.
Accurate Temperature Measurement
The centimeter-level model offers temperature measurement accuracy as precise as ±0.5°C.
Multiple Alarm Modes
Supports fixed-temperature, temperature-difference, rate-of-rise, and fiber-break alarms for different monitoring needs.
Web-Based Access
Access the monitoring system through a web browser without installing client software, simplifying system access and management.
±0.5°C
Temperature Accuracy
0.5 m
Spatial Resolution
±0.5 m
Precise Hotspot Localization
16 km
METER-LEVEL DTS · per channel
How It Works
01 / TECHNOLOGY
DTS Sensing Technology
Raman scattering and OTDR measure temperatures and locate abnormal heating along the sensing fiber.
Based on Raman scattering and optical time-domain reflectometry (OTDR), the system analyzes backscattered light to measure temperatures and determine locations along the sensing fiber. It displays temperature profiles and triggers alarms when preset conditions are met.
02 / LONG-RANGE MONITORING
Meter-Level DTS
Long-distance temperature monitoring for power cable tunnels, utility corridors and extended infrastructure.
Meter-level DTS supports monitoring distances of up to 16 km per channel and up to 16 channels for flexible deployment. Measurement cycles as short as 1 second per channel enable frequent temperature updates across power cable tunnels, utility corridors, and other extended infrastructure.
03 / EQUIPMENT MONITORING
Centimeter-Level DTS
Localized temperature monitoring at cable joints, busways and other critical equipment.
Centimeter-level models cover up to 2.5 km per channel and are designed to monitor localized temperature changes at cable joints, busways, and other critical equipment. The passive sensing fiber requires no power along the sensing route and is resistant to electromagnetic interference.
System Components
E3 Host Unit
Processes optical signals from the sensing fiber to measure temperatures and locate abnormal heating. Available models can be selected based on channel count, sensing distance, and integration requirements.
Temperature-Sensing Cable & Accessories
Provides continuous temperature monitoring along the installed route without requiring electrical power along the sensing cable. Optical accessories support fiber connections and installation.
Monitoring Software & Integration
Displays real-time temperature profiles, alarm locations, and historical records, with relay outputs, RS485, Ethernet, and API options for integration with existing monitoring systems.
Certifications
The Gato E3 DTS system carries CE marking, with electromagnetic compatibility (EMC) compliance verified by SGS. FCC compliance documentation is also available for international projects.
CE
CE Marking
EMC compliance verified by SGS.
FCC
FCC Compliance
Compliance documentation for the U.S. market.
Typical Applications
Power Cable Tunnels
Monitor temperature along cable routes and identify abnormal heating before conditions escalate.
Oil & Gas Assets
Track abnormal temperature conditions along selected pipelines, storage areas and process routes.
Data Centers & Cable Rooms
Monitor power-distribution and cable routes for localized overheating.
Industrial Electrical Equipment
Monitor cables, inverters and connection areas for abnormal temperature rise.
Warehouses & Storage Areas
Provide distributed heat monitoring and configurable early-warning alarms along protected routes.
Traffic & Utility Tunnels
Monitor temperature across long enclosed routes and locate abnormal heat for inspection.
Case Studies
Tunnel Temperature Monitoring in France
Project Challenge
A French tunnel engineering provider with over 20 years of international experience needed continuous temperature monitoring and early warning of abnormal heat buildup to supplement its existing fire alarm procedures.
E3 Solution
Gato provided an E3 fiber optic temperature sensing system to monitor temperatures along the tunnel, with remote monitoring and configurable alarm zones for identifying abnormal temperature rises.
Project Highlights
The project demonstrates how continuous fiber optic temperature monitoring can support the transition from manual inspection to round-the-clock monitoring along tunnel infrastructure.
Frequently Asked Questions
What is the difference between DTS and DAS?
Distributed Temperature Sensing (DTS) measures temperature changes along an optical fiber, while Distributed Acoustic Sensing (DAS) detects vibrations and acoustic disturbances. DTS is commonly used for overheating and fire detection, whereas DAS is used for intrusion detection, pipeline monitoring, and vibration monitoring.
Can E3 use existing fiber optic cables?
E3 requires optical fibers compatible with its DTS sensing technology. Existing fiber optic cables may be reused if they meet the required fiber type, optical loss, and installation conditions. Fiber compatibility should be evaluated before deployment.
How do fiber bends, splices, and optical loss affect DTS performance?
Excessive fiber bending, poor splices, and high optical loss can weaken the backscattered signal and affect temperature measurement accuracy. Proper cable routing, suitable bend radii, and low-loss fiber connections help maintain reliable DTS performance.
Does a DTS system require on-site calibration?
E3 supports automatic baseline generation, temperature calibration, and optical loss compensation. On-site verification may still be required during commissioning, depending on the fiber installation and measurement accuracy requirements.
Can E3 integrate with SCADA, PLC, and fire alarm systems?
E3 supports relay outputs, RS485, and Ethernet interfaces, with Modbus RTU, Modbus TCP, and API integration options. Compatibility with SCADA, PLC, and fire alarm systems depends on the protocols and interface requirements of the target system.
How do I choose the right E3 DTS model for my project?
Model selection depends on the required sensing distance, number of monitoring routes, temperature measurement accuracy, and installation environment. Meter-level models are suited to long-distance monitoring, while centimeter-level models are designed for localized temperature monitoring. Gato can help evaluate project requirements and recommend a suitable configuration.
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