DiTemp Reading Unit
The DiTemp Reading Unit is a rack-mountable Raman OTDR interrogator for distributed temperature sensing, measuring along fiber optic sensing cables up to 30 km with down to 1 m spatial resolution and a 10 second measurement time.
- Range
- 15 km / 30 km
- Spatial resolution
- down to 1 m
- Sampling resolution
- 1 m
Overview
In detail
How it works
Uses the Raman OTDR measuring principle to capture a full temperature profile along a fiber optic sensing cable. A single built-in channel can be expanded to 4, 8 or 16 channels with an external multiplexer, and the unit is available in multimode or singlemode fiber versions.
Deployment
Rated for 5°C to 40°C operation (-15°C to +65°C storage), with a user-selectable measurement time from 10 seconds up to 60 minutes. Connects via Modbus, Ethernet or TCP through the DiView software, plus a volt-free alarm module.
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Specifications
Technical specifications
- Range
- 15 km / 30 km
- Spatial resolution
- down to 1 m
- Sampling resolution
- 1 m
- Temperature resolution
- down to 0.1°C
- Number of channels
- 1 (expandable to 4/8/16 with multiplexer)
- Fiber typology
- Multimode 50/125 µm (ITU-T G.651) or singlemode 9/125 µm (ITU-T G.652)
- Operating temperature
- 5°C to 40°C
- Storage temperature
- -15°C to +65°C
- Humidity
- 5% to 95% RH, non-condensing
- AC power
- 100V-240V, 50Hz-60Hz
- DC power
- 24V or 48V option
Related
Often specified alongside
Geosystems
FOT Embeddable Temperature Sensor
- Range
- −40 to +85°C (cable dependent)
- Accuracy/Repeatability
- ±1°C
- Resolution
- 0.1°C
Geosystems
TH Series Temperature Sensor
- Range (TH-T)
- -50 to +150 °C
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