Products Description

Our fiber optic distributed temperature sensing system treats the sensing fiber as a continuous temperature sensor rather than a set of point probes. Three performance versions provide different spatial resolution and location accuracy.

Technical Principle

Dielectric optical probes are installed at the required hot spots. Temperature changes alter the optical response of the sensing material, and the monitor converts this response into a stable temperature value. Because the measuring path is optical rather than metallic, it remains suitable for strong electric and magnetic fields.

Product Features

The fiber optic distributed temperature sensing system provides continuous temperature coverage over kilometers of sensing fiber. Raman and OTDR processing locate each temperature event along the route. Three resolution levels support long routes or smaller hot-spot localization. The passive fiber is immune to electromagnetic interference and suited to hazardous areas.

Operating Conditions

Install the product in a clean, ventilated location without corrosive gas, conductive dust, water ingress, severe vibration, or strong impact. Provide reliable protective grounding, maintain the required electrical clearances, and use the rated auxiliary power supply. Confirm ambient temperature, humidity, altitude, enclosure protection, cable routing, and communication conditions before production and installation.

Product Parameters

Parameter	Details
Channels	4 channels; optional expansion to 16
Measurement distance	≤12 km
Spatial resolution	MSDSS01 ±0.4 m; MSDSS02 ±0.2 m; MSDSS03 ±0.1 m
Location accuracy	MSDSS01 ±0.4 m; MSDSS02 ±0.2 m; MSDSS03 ±0.1 m
Alarm response / measurement time	≤3 s / ≤1 s per km
Temperature range	-200°C to +455°C, depending on sensing cable
Temperature accuracy / resolution	±0.1°C under stated conditions / 0.01°C
Interfaces	RJ45, two RS485, two USB, and eight relays; up to 32 relays optional
Power / consumption	24 VDC; average ≤10 W
Dimensions / weight	430×346×90 mm / 8 kg

Product Advantages

The fiber optic distributed temperature sensing system provides continuous temperature coverage over kilometers of sensing fiber.
Raman and OTDR processing locate each temperature event along the route.
Three resolution levels support long routes or smaller hot-spot localization.
The passive fiber is immune to electromagnetic interference and suited to hazardous areas.

Main Applications

The fiber optic distributed temperature sensing system is used for high-voltage cable routes, cable tunnels, joints, transport tunnels, tanks, conveyors, and dams.

It supports hot-spot warning, fire detection, current-capacity analysis, and route visualization.

The system is useful where many point sensors would be difficult to install and maintain.

Components

Part	Function
Distributed sensing host	Launches optical pulses and calculates temperature and position.
Temperature-sensing fiber	Acts as the continuous passive sensing element.
Relay and communication interfaces	Send alarms and data to external systems.
Web-based software	Configures zones and displays maps, curves, history, and alarms.