Auto Cable Fault Locator

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Introduction

This is the simplest way of detecting  distance of fault on an underground cable. Faulty pair is connected to the tester. If pair is open then  one LED will glow indicating that the pair is open. If the pair is short then other LED will glow indicating that the pair is  short. Then the display will instantly give direct reading of distance in metres. There is no other adjustment to be done.

Technical Specifications

 Salient Features :

• Unlike a conventional Cable Fault Locator, this unit does not use Cathode ray tube (CRT). It incorporates the latest digital signal processing technology to detect distance to fault; thus eliminating the need for CRT. Hence the unit is very compact  & light weight.
• Power consumption is very less. Hence unit can work for 3 to 4 days  without charging the battery.
• Since we get distance directly on the display without any need to adjust any graph.  Hence error arising out of adjusting of the graph is eliminated.
• In normal cable fault locator for any kind of joints reflected pulse appears. Hence it is difficult to  judge whether reflection is due to real fault or due to joint. Such is not a case with this tester.
• Testing period is less since there is no adjustment of graph.
• There is inbuilt timer to cutoff unit automatically which saves battery drain.
• This tester can be used  to  test  Jelly filled  as well as Paper core  cable.
• There are 3 ranges for measurement -- 300 Mts, 1Km & 3 Km. Each range is separately calibrated . Hence accuracy is better.
• Due to simplicity of operation this machine can be easily used even by layman.

Last Updated : May 30' 2004

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