sebakmt UK - Innovative ideas for location, inspection and fault finding
Sunday, February 11, 2007
Telecom Systems
Supplementary unit for reflectometers to locate humidity faults in cables
 
The Fault Converter enables the location of humidity faults on paired cables. The small unit is a very useful supplement for the SebaKMT reflectometers (for example the Digiflex Com).
 
Reflectometers supporting the TDF-mode (Time Dependant Fault) and the IFL-mode (Intermittent Fault Location) facilitate the location of intermittent humidity faults in connection with the fault converter.

Performance Characteristics:

  • Display of the output level by a LED-chain
  • Adjustable output level
  • Adjustable polarity changing frequency
  • For all kinds of reflection measurements
  • No crosstalk or influence on the data traffic on adjoining pairs
  • Automatic shut off
  • Battery monitoring
  • Small handheld unit

Method of working:

The Fault Converter injects a direct current into the defective cable. The humidity fault will be changed by electrolysis caused by polarity changes. This effect is visible as a changing reflection on the display of the reflectometer.

The periodical polarity change of the direct current intensifies the effect and simplifies the location of humidity faults. The reflectometer Digiflex Com supports the application with the specially developed TDF-mode (Time Dependent Fault).

Output voltage: < 120 V
Output current: max. 10 mA
External voltage protection: up to 400 V
Usable pulse widths: 5 ns ... 5 µs
Operation time: > 10 hours
Dimensions: 125 x 210 x 60 mm
Weight: approx. 800 g
Tel: +44 (0) 1249 816 181 • Fax: 01249 816 186
Email: sales@sebakmtuk.com