High-/Low-Temperature Distributed Fiber Optic DTS System
High-/Low-Temperature Distributed Fiber Optic DTS System
Model: DTS-BLY-5S (HL-10km)
Measures continuous temperature profiles and abnormal-temperature locations along the fiber. Select range, fiber type, channels and sensing cable for the specified model.
Typical applications
Wide-temperature-range applications: liquid nitrogen systems, high-temperature furnaces, satellite launch facilities, and high-temperature nuclear power environments.
Spatial resolution, sampling interval and location accuracy are distinct quantities. Temperature accuracy depends on fiber length, acquisition time, temperature range and cable configuration; optimum values are not necessarily simultaneous.
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.
Technical specifications
| Parameter | Specification |
| Fiber Type | Multimode Fiber |
| Center Wavelength | 1550 nm |
| Measurement Range | 10 km |
| Spatial resolution | ±0.5 m |
| Location Accuracy | ±0.5 m |
| Measurement Time | ≤2 s/km (software-adjustable) / software-adjustable |
| Temperature Measurement Range | -200°C to 900°C (depending on sensing cable type) |
| Temperature Accuracy | ±0.1°C @ 2 km, ±0.5°C @ 10 km; accuracy may decrease in high- and low-temperature ranges |
| Temperature Drift Specification | Temperature drift ≤0.05°C per 1°C ambient change |
| Temperature Resolution | 0.02°C |
| Measurement Channels | Up to 16 channels |
| Optical Connector | FC/APC |
| Power Supply | DC 24 V; maximum power consumption ≤96 W |
| Operating Temperature | -10°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Communication Interfaces | 2 × RS-232, 1 × RJ45 Ethernet |
| Dimensions (W × D × H) | 482.6 × 327.7 × 132.8 mm (3U rack-mount) |
| Weight | 12 kg |
For advice on fiber optic temperature monitoring system, share your monitoring distance, installation environment and integration requirements with our engineering team. We can help assess sensor placement, commissioning and acceptance criteria for your project.