QJ45E Line Fault Detector

Line fault detector is used to test the faults like grounding, wire cross, mis-connection and broken line in communication cable or communication overhead line, also suitable for measurement of normal resistance.

Description

Application

QJ45E portable type line fault detector consists of various loop test circuit based on bridge measuring principle. It is used to test the faults like grounding, wire cross, mis-connection and broken line in communication cable or communication overhead line. Meanwhile it is also suitable for measurement of normal resistance. The detector is with built-in null indicator and working cell, which is able to be used in telecommunication sector, factories, workshops, laboratories and field site without AC power supply. .

Main Technical Specification

  1. Measuring range
  • Resistance value: 0~1011000Ω
  • Loop test: variable ratio arm and fixed ratio arm
  • Capacitance test: for broken line and mis-connection fault detection
  • Grounding insulation resistance: around 105-107Ω
  1. Accuracy class : 0.1
  2. Current constant of null indicator: <1μA/mm
  3. Power supply of null indicator: 9V (6F22 laminated cell 2pcs)
  4. Working power supply: 4.5V (1.5V Size D dry battery 6pcs)
  5. Dimension: 320 x 280 x 170(mm)
  6. Weight: 3kg (approx)