FJ-6The buried pipeline anti-corrosion layer detection leak detector is a digital, intelligent, and multifunctional buried pipeline anti-corrosion layer detection leak detector. This instrument can conveniently and accurately locate the position, direction, depth, anti-corrosion layer damage points and sizes, and insulation resistance of buried pipelines without excavating the covering soil. This instrument is used by departments such as oil fields, chemical engineering, oil and gas transportation, water and electricity, and heating to ensure the safe operation of pipelines, improve unit economic benefits, detect pipeline corrosion points in advance, and prevent corrosion leakage accidents.

Characteristics of the instrument

1. Adopting a flat design and keyboard operation, one click multi use.

2. Without the need for additional wiring, simply press the measurement button to automatically measure parameters such as transmission power, transmission voltage, transmission current, and grounding resistance.

3. The signal strength of the entire detection process is normalized by the internal circuit to ensure comparability of the leakage point size and insulation resistance value of the anti-corrosion layer in each measurement section.

4. Adopting voltage controlled vibration frequency technology to make the signal strength response of pipe position and leakage point clearer.

5. Sound system, indication, analog bar cursor, display signal strength more intuitively.

6. Easy to operate, simple to use, easy to learn and understand.

7. Easy to carry and more suitable for field testing.

8. When the instrument voltage is insufficient, it will automatically shut down, and when shutting down, it will automatically cut off the internal power supply,

（1） Technical specifications of the transmitter:

1. Transmitter power: 0-25W， Automatically adjustable servo control

2. Output impedance matching:5-500 Ω, automatic matching

3. Launch distance: 0.03-5Km， Can gradually move 5km away

4. Working power supply: 12V（12AH lithium batteryGroup)

5. Working temperature: -10 ℃ -+50℃

6. Control system: DSP+vector control, supports system upgrade

7. Adjustment system: digital keyboard control

8. Weight: 3.0Kg (including battery)

9. Dimensions: 276mm × 227mm × 98mm

（2） Technical specifications of the probe:

1. Sensitivity:-65db

2. Position deviation: ≤ 5cm

3. Depth of probe: ≤6m

4. Distance measurement accuracy: ≤ 0.1% of the test distance

5. Working power supply: 9.6V nickel hydrogen battery pack

6. Dimensions: 165 mm × 110 mm × 68mm

7. Weight: 0.9Kg (including battery)

（3） Technical specifications of leak detector:

1. Leak detection accuracy: ≥ 0.5mm²

2. Position deviation: ≤ 5cm;

3. Working power supply: 9.6V nickel hydrogen battery pack

4. Dimensions: 165 mm × 110 mm × 68mm

5. Weight: 0.9Kg (including battery)

[Function and Purpose]

Function:

This instrument can conveniently and accurately locate the position, direction, depth, damage points and sizes of the anti-corrosion layer of buried pipelines, as well as the insulation resistance of the anti-corrosion layer, without excavating the covering soil.

Purpose:

according toAcceptance of pipelines shall be carried out in accordance with SYJN4029-88 and GJJ33089 standards;

Conduct final acceptance of newly laid pipelines;

Regularly inspect pipelines according to safety regulations to determine the effectiveness of cathodic protection;

Locate the branches on the supervisory line;

Inspect the old pipeline to determine the condition of the pipeline anti-corrosion coating;

Before excavating and breaking soil in the construction section, inspect the distribution of underground pipelines to prevent damage to underground oil, gas, water, electricity and other pipelines during construction.

[Features]

It has multiple detection methods: it can automatically switch and save values automatically when turned off.

It can automatically measure the resistance of pipelines to ground, output low-frequency modulation alarm signals, have strong anti-interference ability, improve the detection effect of the instrument, and extend the service life and lifespan of the battery.

[Detection Principle and Method]

The principle and method of detecting the direction and burial depth of underground pipelines: sending specific low-frequency modulation signals to underground pipelines to determine their position, direction, and depth by detecting the magnetic field of the underground pipelines.

Detection principle and method:

Send a specific low-frequency modulation signal to the underground pipeline, form a loop with the ground at the point of damage to the anti-corrosion layer of the underground pipeline, and radiate to the ground. The radiation signal is strong directly above the damage. Based on this principle, identify the point of damage to the pipeline anti-corrosion layer.

adoptThe "human body capacitance method" uses the human body as the sensing element of a leak detector. When the leak detector approaches the leak point, the leak detector emits a sound prompt. When it reaches directly above the leak point, the sound in the horn is the loudest and the reading is the highest, thus accurately finding the leak corrosion point.

Basic configuration of the instrument

Main components of the instrument:

One transmitter; One tube detector; One leak detector;

Accessories of the instrument:

Probe rod a

Leak detection line a

Output line a

ground wire a

grounding rod Two roots

Small file a handful

magnet one

One 12.6V charger

Two 9.6V chargers

fuse1A two pieces

random file a set