The Yokogawa DTSX1 is an advanced fibre optic heat detector that uses distributed temperature measurement technology to ensure accurate real-time monitoring over long distances. It is specifically designed to withstand harsh industrial environments where traditional sensors are not sufficient. By utilising fibre optic technology, the DTSX1 can deliver high-resolution temperature data without being affected by electromagnetic interference or other environmental factors.
How the measurement works
DTSX1 is based on the principle of optical scattering in fibre cables. When a laser pulse is transmitted through a fibre optic cable, the light interacts with the cable material and some of the light is reflected back. This reflection, called backscatter, carries information about the temperature along the entire length of the fibre cable. Through advanced analysis of the backscatter signals (Rayleigh, Raman and Brillouin scattering), the system can accurately determine temperature changes in each segment of the cable.
Features and benefits
- Distributed temperature measurement: A single fibre cable acts as thousands of sensors, allowing precise monitoring at multiple points without the need for separate sensors.
- Rapid response: Monitors temperatures in real time for immediate detection of changes or impending problems.
- Robust to interference: Fibre optic technology is immune to electromagnetic interference, making it ideal for environments with high electric fields.
- Low maintenance cost: No moving parts or electrical components along the cable, reducing the need for regular maintenance.
- Flexible installation: The system can be easily customised to cover long distances or complex areas with multiple measurement points.
- Environmentally sustainable: Withstands extreme conditions, including high heat, moisture, vibration and chemical environments.
Applications
The DTSX1 offers versatile use in several critical areas:
- Fire protection and safety: Detection of temperature increases in warehouses, tunnels, cable trays and car parks for early warning of potential fire risks.
- Process monitoring: Careful temperature control in process pipes, tanks and chemical reactors to ensure optimal operation and prevent overheating.
- The energy sector: Monitoring heat generation in power lines, transformers and battery storage to improve efficiency and prevent breakdowns.
- Industrial environments: Temperature monitoring in mines and other harsh environments to improve safety and operational efficiency.
- Infrastructure: Tracking thermal changes in buildings, roads and bridges to ensure structural integrity and prevent damage.
DTSX1
| Item | Specifications | ||
| Measurement distance range | 2km, 4km, 6km, 8km, 10km, 16km | ||
| Number of channels | 1, 2, 4 | ||
| Spatial resolution | 1 m or less | ||
| Sampling resolution | Measuring temperature at 0.5 - metre or 1 - metre intervals | ||
| Minimum temperature measurement time | 5 sec | ||
| Measurement mode | Single-ended, double-ended | ||
| Number of zones configured | 1,000 (no overlapping) | ||
| Interface | Optical output | E2000 / APC 50 / 125 μm GI | |
| LAN | 10 BASE-T or 100 BASE-TX Modbus / TCP | ||
| Relay output | 8, 64 ports, max 35 V / 1 A DC | ||
| Relay input | 4 ports ON: 12 to 30 V / 5 mA DC OFF: 3 V / 2 mA DC |
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| Display | POWER SYSTEM OPERATING ALARM / PRE-ALARM / FAULT (Displayed for each channel) |
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| Switch | RESET | Alarm state reset | |
| ACK | Alarm acknowledgement (Hold the alarm state) |
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| Power supply | Operating voltage | 10 to 30 V DC (Rated voltage: 12 or 24 V DC) |
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| Power consumption | 30 W (normally 15 W at 23 °C ambient temperature) |
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| Dimensions (W × H × D) | 500 mm × 500 mm × 250 mm | ||
| Weight | 28kg | ||
| Mount type | Wall mount | ||
REGULATORY COMPLIANCE and CONFORMITY to STANDARDS
| Category | Standard | |
| Fire detection | EN 54-22 | |
| Laser safety | IEC 60825-1 EN 60825-1 FDA (CDRH) |
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| CE mark | EMC | EN 55011 EN 61000-6-2 |
| General safety | EN 61010-1 EN IEC 61010-2-201 |
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| RoHS Directive | EN IEC 63000 | |
| Laser safety | EN 60825-1 | |
| CSA mark | General safety | CSA C22.2 |
| KC mark | EMC | Korean EMC standards |
| RCM mark | EMC | EN 55011 |
