QJ45E Portable Line Fault TesterDetailed product description：

The QJ45E portable line fault tester is composed of various types of return line testing circuits based on the principle of bridge measurement. It is used to detect faults such as grounding, mixed grounding, misconnection, and disconnection in communication cables or communication overhead lines, and is also suitable for measuring general resistance. The instrument is equipped with a zeroing device and can be equipped with a working battery. Suitable for use by telecommunications departments or industrial and mining enterprises in laboratories, workshops, and schools in locations without AC power supply.

Main technical indicators:

1、 Measurement range:
Resistance measurement: 0-1011000 Ω
Loop Test: Variable Proportional Arm Type
Capacitance testing: for measuring broken and misconnected faults
Grounding insulation resistance value: approximately 105-107 Ω
2、 Level index: 0.1 level
3、 Zero finger current constant:<1 μ A/mm
4、 Zero pointer power supply: 9V (2 6F22 stacked batteries)
5、 Working power supply: 4.5V (6 1.5V 1 dry batteries)
6、 Dimensions: 320 × 280 × 170 (mm)
7、 Weight: 3kg