Cable fault tester for monitoring, looking for short contacts and breakpoints, I don't know which one is more suitable?

EDHZC-4 cable fault tester is designed to be portable. The instrument is designed by virtual instrument, and the notebook is used as the operating system and display screen. The operation interface is designed in Chinese, and the menu prompts directly display the fault distance. Handheld compact: the prediction unit adopts advanced signal processing technology, the characteristics of test waveform are clear and easy to argue, and cable fault analysis is easier to master. Because both the notebook computer and the front-end measuring unit are powered by batteries, the system can completely isolate operators and testers from high voltage, thus ensuring the safety of people and machines. The first online "remote online service" can be sent to us by email, and we can get expert analysis and guidance in a few minutes.

technical parameter

◆ Pulse amplitude: not less than 120V at 50Ω Pulse width: 0.2us and 2us..

◆ Test blind zone: the maximum test frequency of 40M during measurement is 10m.

◆ Measurement error of main engine: 2%. The cable below1000m shall not exceed15m, and the cable above1000m shall not exceed 20m.

◆ System measurement error: The system error should be less than 0.2m when the host computer measures and the fixed-point instrument measures.

◆ Reading resolution: propagation speed of V/2v electric wave in cable (m/ μs )f sampling frequency (MHz)

◆ For example, the propagation speed of oil-impregnated paper cable is V= 160m/μs, and if sampling is at f=40MHz, the reading resolution is 160/(2*40)=2m.

◆ Sampling frequency: 40MHz, 20MHz, 10MHz, 5MHz, 2.5MHz.

◆ Preset the radio wave propagation speed of five cable media:

Oil-impregnated paper:160m/USA

Crosslinking:172m/USA

Plastics1:184m/USA

Plastic 2: 40m/USA

Coaxial cable:196m/USA

And the media of your choice.

◆ Sampling modes: normal trigger mode, automatic trigger mode and current sampling.

Functional characteristics

Can test various types of copper-aluminum core power cables, coaxial communication cables and.

Various faults of local telephone cable.

◆ There are many testing methods, such as direct method in low-voltage mode, comparison method and high-voltage mode.

Voltage coupling method and current coupling method.

◆ Using Windows localization software is more user-friendly and easy to operate.

◆ Field waveforms can be stored in large quantities and called at any time.

◆ Dual-channel data processing technology can compare and analyze phase-to-ground and phase-to-phase waveforms on the same screen at will.

system composition

◆EDHZC-4 Cable Fault Tester is used for rough measurement of cable faults, which is the detection core of the whole set of instruments;

◆EDHZD cable fault locator (referred to as locator) is used to accurately locate cable faults, which is the same as the traditional configuration;

◆EDHZL cable pathfinder is used to find the direction and depth of buried cables, which is the same as the traditional configuration;

◆ High-energy and high-voltage device: used to roughly measure all kinds of faults with the help of flash tester; Cooperate with fixed-point instruments to accurately locate all kinds of fault points. There are two configurations:

◆ Split structure: including:

◆YD(JZ) series power frequency high voltage test device (including YD(JZ) series power frequency high voltage test transformer and XC series voltage regulating control box, the same as the traditional configuration).

◆ Pulse energy storage capacitor (same as traditional configuration)

◆ Secondary pulse synchronization device

◆ Integrated structure: high-voltage secondary synchronous pulse integrated generator, including all functions of split structure.