--- title: "Yokogawa DTSX3000 Distributed Temperature Sensor" description: "High-performance flagship Distributed Temperature Sensor (DTS) designed to monitor continuous temperature profiles over long distances using standard fiber optic cable." canonical_url: "https://nodewave.net/store/fiber-sensing/dtsx3000" last_updated: "2026-10-04T04:04:13.422Z" --- **Zero Blind Spots Over 50 km:** The Yokogawa DTSX3000 converts standard fiber-optic cable into thousands of virtual temperature sensors. By analyzing Raman backscattering light along the fiber, it provides continuous, real-time thermal profiles without point-sensor gaps. ## Executive Summary & Core Capabilities The **Yokogawa DTSX3000** is a flagship Distributed Temperature Sensor (DTS) built to protect critical infrastructure across vast operational distances. Traditional point sensors like thermocouples or RTDs leave dangerous unmonitored gaps and require thousands of individual signal cables. The DTSX3000 uses a single fiber line to measure temperature every **0.2 to 1 meter** along distances up to **50 km**. Because optical fiber is completely passive and immune to electromagnetic interference (EMI), high voltages, and explosive gas atmospheres, the DTSX3000 provides total operational awareness in severe processing and transmission environments. Dynamic Cable Rating (DCR) Integration: Feed real-time DTSX3000 thermal profiles directly into power grid control systems to dynamically adjust power transmission loads based on actual ambient cable heating rather than static estimates.

- **100% Linear Coverage:** Replaces thousands of point thermal sensors with a single fiber cable, leaving zero blind spots. - **Immune to Severe EMI & Lightning:** Operates safely inside high-voltage power conduits, subsea power lines, and transformer yards where copper wiring fails. - **16-Channel Switching Capability:** A single DTSX3000 unit can sequentially scan up to 16 separate optical fiber loops using an integrated optical switch. - **Extreme Temperature Resilience:** Compatible with passive optical fibers capable of operating from cryogenic temperatures up to

+300\text{ °C}

+ 300 °C .

The DTSX3000 fires laser pulses down the fiber and evaluates **Raman backscattering** at two wavelengths: **Anti-Stokes** (temperature-sensitive) and **Stokes** (temperature-insensitive). By calculating the intensity ratio

I_{AS} / I_S

I A S / I S relative to time delay

t

t , the unit determines exact local temperature

T (x)

T ( x ) at distance

x

x :

T (x) = \frac{\gamma}{\ln\left (\frac{I_S (x)}{I_{AS} (x)}\right) + C}

T ( x ) = l n ( I A S ( x ) I S ( x ) ) + C γ

--- ## Technical Specifications & Performance Matrix

Metrology Parameter	Engineering Specification
Measurement Principle	Raman Scattering Optical Time Domain Reflectometry (OTDR)
Distance Options	$6\text{ km}, 16\text{ km}, 30\text{ km}, \text{and } 50\text{ km}$ 6 km , 16 km , 30 km , and 50 km variants
Spatial Resolution	$1\text{ m}$ 1 m ( $16\text{ km}$ 16 km range) / $2\text{ m}$ 2 m ( $50\text{ km}$ 50 km range)
Sampling Resolution	Down to $0.2\text{ m}$ 0.2 m ( $20\text{ cm}$ 20 cm )
Temperature Accuracy	$\pm 1.0\text{ °C}$ ± 1.0 °C (time and distance dependent)

Feature	Technical Profile
Supply Voltage	$10\text{ to }30\text{ VDC}$ 10 to 30 VDC (Wide-range DC) or $100\text{--}240\text{ VAC}$ 100 – 240 VAC
Power Consumption	$< 10\text{ W}$ < 10 W typical (ideal for remote solar-powered stations)
Network Protocols	Modbus TCP, Modbus RTU, EtherNet/IP, LAS
Channel Options	Integrated $1, 2, 4, 8, \text{or } 16\text{-channel}$ 1 , 2 , 4 , 8 , or 16 -channel optical switches

Metric	Specification
Form Factor	Rack-mountable or field enclosure modular frame
Laser Safety Class	Class 1M Laser Product (Safe under standard operation)
Operating Range	$-40\text{ °C to }+65\text{ °C}$ − 40 °C to + 65 °C ( $-40\text{ °F to }+149\text{ °F}$ − 40 °F to + 149 °F )
Optical Connectors	FC/APC or E2000/APC angle-polished connections

--- ## Target Industry Applications Tracks localized thermal hot spots along underground transmission conduits and subsea cables to prevent insulation breakdown. Detects sudden local temperature drops from high-pressure gas expansion leaks or temperature spikes from hot oil leaks. --- ## Official Provider Resources & In-Depth Documentation For complete technical handbooks, enterprise system integration guides, and direct support from Yokogawa's engineering team, explore the official manufacturer portals below: Access full product line specifications, compliance documentation, and global support contacts directly from Yokogawa. Explore comprehensive application notes, white papers, and system architecture guides for distributed sensing deployments.