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Visual Fault Locator (DT-VFL750-III)


DT-VFL750-III series Visual Fault Locator uses the DFB-LD as theemitting component. Driven by constant current source, the indicator can emitstable red laser. The product can be used to inspect fiber failure when theyconnect with optical interface and be inserted into single mode or multi modeoptical fiber. It is indispensable tool in fiber project constructing, fibernet-work maintaining, optical component manufacture and research.



  2.5mm universal connector,

  Operates either in CW or Pulsed mode with constant output power

  Long battery life (up to 60 hours)

  drop-resistand and dust-proof design of laser head

  Laser case ground design prevents ESD damage

  Portable and rugged

  Easy to use

  Meets CE standards including EMC, EMI, ROHS



  Maintenance in telecom, CATV

  Test Lab of optical fibers

  Fiber routing and continuity checking in optical networks

Other fiber opticmeasurements




 Visual Fault Locator (DT-VFL750-III)

Central wavelength


Emitter type

FP-LD Fabry-Perot laser diode

Output power

Optional choice for 5mw, 10mw,20mw,30mw,40mw,50mw

Optical connector

2.5mm universal connector, for 1.25mm  connectors, FC (Male)-LC. (Female) convertor can be provided on request

Operating model

Both CW and Pulse available

Pulse frequency

3Hz to 9Hz

Power supply

2AA alkaline batteries

Operating temperature

-20°C to 60°C

Storage temperature

-40°C to 85°C


 -FL-001 Φ23 X 183


50g (without battery)