SL-6 underground metal pipe corrosion detection leak detector is the world's attention to a wide range of high stability, high anti-interference of one of the new instruments, it can not dig in the case of complex soil, convenient and accurate detection The direction of the underground pipeline, the depth and the exact location of the leakage point of the insulation coating, so that the entire pipe surface is no longer repeated in the open ground pain, oil, chemical, oil, gas, utilities and other departments to ensure underground Pipeline coating construction quality inspection and maintenance inspection of a detection instrument.

'Features'
1, the instrument power supply Japan's high reliability of the original switching power supply, smart charging when charging, no manual control.
2, the instrument voltage, the output current signal can be automatically converted.
3, DC power supply and AC power supply can be automatically converted.
4, the instrument used all high anti-interference lines, especially for the city pipe network survey and maintenance.
5, the transmitter uses liquid crystal display, improve the output accuracy and instrument performance.
6, the instrument ad hoc protection automatic adjustment function, to overcome the fatal weakness of similar products.
7, the instrument line modular structure, three anti-design, which greatly improve the instrument's field life and reliability.

'Main Specifications'
1. Leak detection accuracy: ≥ 0.25mm2;
2. Location deviation: < 20cm;
3. Accuracy:> 98%
4. Scope: all kinds of diameter oil, gas, water and other underground metal pipe corrosion.
(A) transmitter technical indicators:
1. Transmit power: ≥ 25W, adjustable;
2. Transmission frequency: 1K ± 0.1Hz, beat frequency 1-2Hz;
3. Output impedance matching: 0-100Ω;
4. Launch distance: 50m-5Km (5 km can be moved outside the level);
5. Working current: ≤ 3A, 1-3A adjustable;
6. Working power: 12V (Department of nickel-cadmium batteries or automotive power supply);
7. Weight: 2.8Kg (excluding battery weight);
8. Dimensions: 99 × 220 × 220
(B) Detector Specifications:
1. Sensitivity: 0.1mV;
2. to the position deviation: < 10cm;
3. Detection depth: ≤ 5m;
4. Working power: 6V nickel-cadmium batteries;
5. Weight: 0.9Kg;
6. Overall dimensions: 165 × 135 × 69.
(C) leak detector technical indicators:
1. Leak detection accuracy: ≥ 0.25mm2;
2. Leak detection depth: ≥ 0.5m;
3. Positional deviation: < 20cm;
4. Working power: 6V nickel-cadmium batteries;
5. Weight: 0.9Kg;

6. Overall dimensions: 165 × 135 × 69.

'Detection principle and method'
By sending a 1KHz electromagnetic signal to the underground pipeline, the detector uses the principle that the signal is small (almost zero) when the probe is perpendicular to the ground plane of the magnetic field line to determine the direction and depth of the pipeline.
Leak detection principle: through the underground pipeline to send an AC signal source, when the underground pipeline corrosion layer is corroded, where the metal part of the short circuit with the earth, at the leakage point to form the current loop, the leakage signal to the ground radiation, And in the leak above the radiation signal is large, according to this principle can accurately find the leakage point.
Leak detection method:
The use of 'human capacitance method' is to do with the human body to do leak detection device, when the leak detector went near the leak, the leak detector began to react when the leak is just above the speaker in the sound , Indicating the first large, so as to accurately find the leakage point.