KD-212P disc cable comprehensive tester adopts integrated portable model, strong function, single machine can complete the cable length test, direct resistance test, cross-sectional area test, material test and fault test. Can be widely used at all levels of power companies, rail transit, non-ferrous metallurgy, petroleum and petrochemical, coal and steel and other factories and mining enterprises in the sampling of materials and cable management, can also be used for cable production enterprises daily testing work, can also be used for colleges and universities and research institutes in the scientific research work.

Main functions and characteristics
1. Industrial computer technology, more user-friendly design, WINDOWS operating interface, easy to operate.
2. Cable fault test has a variety of test methods, such as direct method in low voltage mode, comparative method, and voltage coupling method and current coupling method in high voltage mode.
3. Adopt highly intelligent fuzzy identification technology to automatically test the cable length and automatically identify and judge the fault type.
4. Using ultra-large scale integrated circuit and DSP (data signal processor) technology, the test instrument is highly integrated, miniaturized and intelligent.
5. The waveform of A, B, C three-phase cable is displayed on the same screen, which is more convenient for the comparison and analysis of waveform.
6. High-speed 16-bit A/D converter, stable measurement data, good repeatability.
7. During the cable direct resistance test, the instrument adopts automatic programmable current source technology, which can either manually select the output current of the typical value or automatically control the output current by the internal microcontroller. A total of 3000 current ranges are set inside the current source, and in the automatic state, the internal microcontroller automatically controls according to the measured resistance, thus achieving a relatively wide measuring range and the best measuring state.
8. Cable resistance measurement real-time dynamic display, fast response speed.
9. The instrument has the characteristics of stable test data, good repeatability, strong anti-interference ability, perfect protection function, fast charge and discharge speed, etc.
10. The instrument is highly intelligent design, clever function setting, can automatically judge the test line virtual connection, broken line and other faults.
11. Perfect protection function, can reliably protect the impact of the counterpotential on the instrument, with automatic discharge indicator function.
12. Color LCD large screen display, rich software interface, can display the same screen length, current, resistance, material, temperature, cross-sectional area and measurement time and measurement status.
13. Mass storage of measurement data, power failure is not lost.
14. The instrument adopts Chinese menu and operation prompts, which is intuitive and convenient.
15. Built-in large capacity rechargeable lithium battery power supply, after full charge can be used for more than 8 hours.

Technical parameter
1. Cable length and fault test part
1) Single-end ranging: greater than 120Km
2) Sampling frequency :160 MHZ, 80MHZ, 40MHZ, 20MHZ, 10MHZ, 5MHZ, 2.5MHZ
3) Pulse amplitude: not less than 120V at 50Ω.
4) Pulse width: 0.2us and 2us.
5) The single-end test blind area of the host is less than 2 meters, and there is no blind area in the test at both ends.
6) Host measurement length error :1‰ ~ 2‰
7) Reading resolution: V/2f V wave propagation speed in the cable (m/us) f sampling frequency (MHZ) For example, the transmission speed of the oil-soaked paper cable is V=160m/us, sampling with f=160MHZ, the reading resolution is 160/(2*160)=0.5m.
8) With three wave contrast function.
9) The radio wave propagation speed of the instrument preset 5 kinds of cable media: oil-impregnated paper: 160m/us, cross-linked: 172m/us, PVC: 184m/us, non-dripping: 160m/us, coaxial cable: 196m/us, and self-selected media.
10) Automatic analysis function: can automatically analyze the low-voltage pulse and high-voltage pulse test waveform, and can automatically identify whether the fault point is broken down when testing the fault.
11) Sampling mode: normal trigger mode, automatic trigger mode, current sampling.
 
2. Measure the DC resistance of the cable
1) Measuring range: 1mW ~ 2kW;
2) Output current: 0 ~ 10A, automatic or manual selection of current;
3) Measurement accuracy: 0.2%±2 words
4) Maximum resolution: 0.1mW
5) Automatically convert to the resistance value under the standard temperature (20℃).
 
3. Other measurement functions
1) Cross-sectional area measurement range: 4mm2 ~ 2500mm2
2) Cross-sectional area measurement accuracy: ±2%
3) Temperature measurement range: -45℃ ~ 90℃
4) Temperature measurement accuracy: ±0.5℃
5) Measurement duration: 0 ~ 600S
 
4. Other general technical parameters
1) Power: AC220V 50Hz, built-in rechargeable battery power supply
2) Charging time: full charge 1 ~ 2 hours
3) Battery life: continuous working for 8 hours
4) Display: large screen color LCD (daylight screen) display, WINDOWS operating interface.
5) Data interface: USB
6) Keys: all metal keys, mouse
7) Storage capacity: 32G
8) Overall dimensions: 400mm×180mm×330mm
9) Weight: 5KG
10) Working temperature: -10∽50 ° C
11) Ambient humidity: ≤90%RH, no condensation