DTS-UL10 · Gen 4 · Generation 4 rack-mount DTS
Generation 4 rack-mount interrogator for centralized control-room installations.
4th-Generation Rack-Mount DTS Interrogator
4th-Generation Rack-Mount DTS Interrogator
Product features
Continuous temperature sensing with multimode fiber. Sampling intervals of 0.1 / 0.2 / 0.4 m correspond to 3 / 6 / 12 km ranges, with approximately 30,000 samples per channel. See the configuration table for location accuracy and spatial resolution.
Four channels as standard, up to 16 channels and approximately 480,000 samples.
The passive sensing fiber requires no field power or network. Select jacket, temperature rating and protection for the environment. The core module accepts DC 10–36 V with minimum-system average power ≤6 W; complete-system and accessory power are separate.
Class 1 laser safety. RJ45, RS485, Modbus RTU, Modbus TCP, JSON and custom interfaces support third-party integration. Alarm modes include fixed temperature, differential temperature, rate of rise, average temperature and faults.
Measurement configuration and hardware
| Host Specification Table | DTS-UL-10(01) | DTS-UL-10(02) | DTS-UL-10(03) |
|---|---|---|---|
| Standard Alarm Length | Subject to temperature contrast, threshold and installation | Subject to temperature contrast, threshold and installation | Subject to temperature contrast, threshold and installation |
| Spatial resolution | ±0.4m（10%–90%） ±0.4m (10%–90%) | ±0.2m（10%–90%） ±0.2m (10%–90%) | ±0.1m（10%–90%） ±0.1m (10%–90%) |
| Positioning Accuracy | ±0.4m | ±0.2m | ±0.1m |
| Sampling Interval | 0.1m/0.2m/0.4m | 0.2m | 0.1m |
| Item | Specification |
|---|---|
| Fiber Type | Multimode fiber 62.5 μm / 125 μm (compatible with 50 μm / 125 μm) |
| Channels per unit | 4 channels (up to 16 channels optional) |
| Measurement Range① | ≤12 km |
| Alarm Response Time | ≤3 s |
| Measurement Time | ≤1s/km |
| Temperature Measurement Range | (-200°C to 455°C) (depending on cable type) |
| Temperature Accuracy② | ±0.1°C (depending on fiber position, measurement time, and other conditions) |
| Temperature Resolution | 0.01°C |
| Communication Interfaces | 1 × RJ45 (Ethernet), 2 × RS485, 2 × USB, 32 relay outputs standard |
| Supported Protocols | Modbus RTU, Modbus TCP, JSON, and custom protocols |
| Optical Connector | E2000 dustproof self-locking connector or FC/APC (E2000 standard) |
| Backup Battery | Optional |
| Power Supply③ | DC 24 V, average device power consumption ≤10 W (actual power consumption may increase when accessories such as relay modules, 4G/5G modules, battery charging/discharging, or other peripheral devices draw power from the unit) |
| Laser Safety Class | Class 1 |
| Operating Temperature | -20°C to 60°C |
| Storage Temperature | -20°C to 70°C |
| Dimensions (W×D×H) | 482.6mm×327.7mm×132.8mm |
| Weight | 10 kg |
An alarm response ≤3 s applies to qualifying fiber-length, polling and trigger settings. Calculate the full update cycle for long fibers or multichannel polling separately from acquisition and alarm times.
Software and system integration
Graphical Interface
7-inch display (1024 × 600), supporting multi-touch.
Supports automatic fiber temperature calibration, curve display and polling, automatic detection of fiber installation quality and fiber length, zone management and alarm display, historical zone data query, external RS485 and RJ45 interface configuration, and relay linkage configuration and management.
Software Functions
Built-in distributed fiber optic temperature sensing software based on a web server, accessible through a web browser. Supports major operating systems including Windows, Linux, iOS, Android, macOS, and HarmonyOS. Provides powerful device management and configuration functions, rich data/protocol integration capability, and 2D/3D dynamic visualization with scene or map display.
Intelligent Functions
1. Automatic calibration of Raman optical calibration parameters, with built-in calibration sensor and one-click auto parameter tuning;
2. Automatic zoning based on preset segment lengths and naming rules;
3. Automatic switching between Chinese and English (other languages supported through secondary development);
4. One-click fully automated upgrade;
5. Free switching of spatial sampling interval and spatial resolution for both long-distance monitoring and high-resolution hotspot monitoring;
6. Automatic detection of fiber length and fiber connection quality;
7. Supports RJ45 wired networking; 4G/5G requires an optional module;
8. Supports intelligent networking and NAT traversal, enabling global web access through a cloud server after secure configuration even without a fixed public IP.
Product views and installation
Spatial resolution uses the 10%–90% step-response criterion and the ± spatial-extent notation used in this datasheet. Location accuracy is specified separately. Compare specifications using the same definitions and test conditions.
Applications and further reading
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