DTS-BLY-5S(LDV-30km) · 多模30 km测温系统
30 km多模测温，40 km光纤连接按配置确认。
30 km多模分布式光纤测温系统
DTS-BLY-5S(LDV-30km)
Long-Range 30 km Distributed Temperature Sensing (DTS) System
用于沿光纤连续获取温度分布与异常位置。测量量程、光纤类型、通道及现场光缆按对应型号选配。
Measures continuous temperature profiles and abnormal-temperature locations along the fiber. Select range, fiber type, channels and sensing cable for the specified model.
典型应用 Typical applications
长距离电力隧道与电力管廊；热力管道同沟敷设；海底电缆
Long-distance power tunnels and utility cable galleries; district heating pipelines laid in shared corridors; submarine cables
空间分辨率、采样间隔与定位精度为不同指标。温度精度随光纤长度、采集时间、温区及光缆配置变化；各项最优指标不代表在同一配置下同时达到。
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.
30 km为标称测量量程；40 km为选配光纤长度或定制配置，其远端精度与采集时间按项目确认。
The nominal measuring range is 30 km. A 40 km fiber requires the applicable optional/custom configuration; far-end accuracy and acquisition time are project-specific.
空间分辨率按10%–90%阶跃响应口径列示，采用“±”空间范围记法；定位精度另列。规格比较须采用相同定义与测试条件。
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.
技术参数 Technical specifications
| 参数 / Parameter | 规格 / Specification |
|---|---|
| 光纤类型 / Fiber Type | 多模光纤 / Multimode Fiber |
| 中心波长 / Center Wavelength | 1550 nm |
| 测量距离 / Measurement Range | 30 km（可配接40 km光纤） 30 km (40 km fiber connection supported by configuration) |
| 空间分辨率 / Spatial resolution | ±2 m |
| 定位精度 / Location Accuracy | ±2 m |
| 测量时间 / Measurement Time | ≤10 s/km（软件可调） / software-adjustable |
| 温度测量范围 / Temperature Measurement Range | -40°C to 450°C （取决于光缆类型） Depending on cable type |
| 温度测量精度 / Temperature Accuracy | ±1°C @ 10 km; ±2°C @ 20 km；±3°C @ 30 km |
| 温度分辨率 / Temperature Resolution | 0.01°C |
| 测量通道 / Measurement Channels | 最多16通道 / Up to 16 channels |
| 光纤接头 / Optical Connector | FC/APC |
| 工作电源 / Power Supply | DC 24 V，平均功耗≤8 W DC 24 V; average power consumption ≤8 W |
| 操作温度 / Operating Temperature | -10°C to 60°C |
| 存储温度 / Storage Temperature | -20°C to 70°C |
| 通信接口 / Communication Interfaces | 1路RS-232、1路RJ45以太网、2路RS-485、8路继电器输出 1 × RS-232, 1 × RJ45 Ethernet, 2 × RS-485, 8 relay outputs |
| 尺寸（W×D×H） / Dimensions (W × D × H) | 482.6 × 442.7 × 88.8 mm （2U机架式 / 2U rack-mount） |
| 重量 / Weight | 8 kg |
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