DiTeSt BOTDR SR 5 KM

COST EFFECTIVE FIBER OPTIC INTERROGATOR
5 KM MEASUREMENT RANGE
BOTDR SINGLE-END MODE

COMPATIBLE WITH ALL DITEST STRAIN AND TEMPERATURE SENSING CABLES

DIVIEW II GRAPHICAL USER INTERFACE TUNED
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The DiTeSt BOTDR SR is a breakthrough in distributed strain sensing, as it is the new entry level interrogator sized to meet increasing demand for fiber optic distributed sensing. The DiTeSt BOTDR SR – Brillouin Optical Time Domain Reflectometry – exhibits cost and performance optimized for maximum length of distributed sensing cable up to 5 km; thus enabling implementation of DiTeSt technology for small to medium scale monitoring projects.

Distributed fiber optic sensing provides measurement every meter along the entire sensing cable; this is particularly important in such cases where the location of defects cannot be predicted, and localized instrumentation is therefore useless.

The DiTeSt BOTDR SR analyses the backscattered light in a singlemode fiber (SMF) in the so-called single-end configuration; with access to only one end of the fiber. DiTeSt technology uses a pulsed light to enable localization along the monitored fibers. Spectral analysis of the scattered light provides the Strain and Temperature information along the monitored fibers.
Distributed fiber optic sensing cables are relatively easy to deploy. Special care shall however be taking relative to cable selection and installation; DiTeST compatible strain sensing cables are proposed; SMARTape II, SMARTProfile II and Hydro&Geo sensing cables.

The DiView II Graphical User Interface enables real-time visualization and converts raw data in frequency measurements to strain and temperature real data. DiView II automatically triggers pre-warnings and alarms on strain level thresholds set by the user. Data are exportable to .txt files for integration in third party monitoring platforms.

Technical Features

Number of channels: 2 built – in channels operating in BOTDR mode (single-end configuration)
Distance range (Optical budget) : 5 km equivalent singlemode optical fiber (10 dB)
Spatial resolution: 1 m
Sampling interval: 0.25 m (at max. distance range)
Acquisition time: From 3 minutes
Measurement resolution: Strain: 10 to 20µm/m (0.02mm/m)

Temperature : 1°C
Typical for 15 min. acquisition time at 5 km with 1 m spatial resolution

Fiber compatibility: Standard singlemode optical fibers (ITU G.652, ITU G657, ITU G.655)

Technical Specification

Operating temperature: 0°C to 45°C
Humidity: Max 85% non-condensing
Protection rating: IP20
Power supply: 100-240 VAC Typ. (90-264 VAC) / 50-60 Hz Typ. (47-63 Hz) / < 150VA
Dimension (WxDxH) / Weight: 449 x 500 x 177.8mm (19” rack mountable – 4U high) / 15 kg
Communication options: 2 x Ethernet port (RJ45)
Optical connectors: E-2000 / APC (rear panel)
Laser safety: Infrared radiation classified EN 60825-1 (2014) as Class 1M laser products

Certification and compliance

CE mark (Council Directive 2006/95/EC and 2004/108/EC), RoHS (Council Directive 2002/95/EC), WEEE (Council Directive 2008/34/EC) CSA US + CA (UL-61010-1 3 Ed; CAN/CSA C22.2 NO61010-1-2)

Accessories and Ordering information

  • 11.1021 DiTeSt SMARTape II Sensing Cable
  • 11.1030 DiTeSt_DiTemp SMARTProfile II Sensing Cable
  • 14.1420 DiTeSt_DiTemp Hydro & Geo Sensing cable
  • 14.1410 DiTeSt Ordinary Temperature Sensing Cable
  • 20.2010 DiView II Data Management Software
  • On request: DiTeSt Optical Multiplexer 4 / 8 channels
  • On request: DITeSt instrumentation cabinet, DiView II Server
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