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Shengli SL-3088C Detector for Anti-corrosive Coating Conditions on Buried Pipelines

【Function and Purpose】

    Without excavation, the outer coating condition detector is able to find out the position, running direction, depth of underground metal pipes, as well as the damaged points and their number, size, and distance between them on underground metal pipes in a convenient and accurate way.

    SL-3088C coating condition detector is applied to the corrosion and protection of petroleum, natural gas, urban gas and underground water pipelines. The aging, friability, peeling, and falling of pipeline protective coating will lead to corrosion and perforation, and then to leakage, causing immeasurable losses.

    SL-3088C can test the buried pipelines without excavation in order to determine and assess the damage conditions of the outer anti-corrosive coating, and can conduct precise location, depth investigation and current measurement of the pipes, which was unattainable under non-excavation cases before. That detection technology not only works as a test and acceptance means for newly built pipes, but also can regularly monitor the operating pipes. To test the conditions of the protective coating of buried pipelines and to replace and repair them as required, extending the life time of pipes, can save lots of maintenance and reconstruction costs. It’s crucial to ensure the proper operation of pipelines.

【Characteristics】

Front and back arrows to indicate the positions of damaged points on the anti-corrosive coating, the damaged points locatable within centimeters in a quick and accurate way (notes: the detection speed is faster than that of foreign counterparts)

Left and right arrows to indicate the location of the pipeline, quick in detection, accurate in test results, less dependent on operators

Direct reading of the buried depth of the pipeline, up to 6 meters

Without connection to pipeline, the receive can measure the current in the pipeline

A-bracket applicable to dry sand regions, without strict requirements for grounding

Ultra-strong anti-interference capability, applicable to detection of urban pipe network under any kind of ground

The high-energy density lithium battery is used, which has large capacity, less weight and which is environmental-friendly

The monobloc weight is reduced.

Easy operation, with only one person for route location, depth investigation, and damage detection of coating.

Regular tracing and detection for key pipelines, construction quality acceptance for coatings on newly built pipelines

Inspection on the branch oil pipes, assessment of the cathode anti-corrosion effects of pipelines.

【Primary Technical Parameters】

Technical parameters of SL-3088 Receiver

Working frequencies: 128Hz, 512HZ, and 1KHZ (Notes: all the three frequencies can identify the direction and size of damaged points).

Dynamic range: 140dB

Location accuracy: ±2% of depthwithout interference from adjacent pipelines

Current accuracy:±2.5% of actual currentwithout interference from adjacent pipelines

Depth accuracy: ±2.5% of depthwithout interference from adjacent pipelines measuring range: 6 meters

Current mapping: able to measure various kinds of signal currents and also the damage direction on the anti-corrosive coating

Sensitivity: 10 mA at a buried depth of 1 meter.

Damage location: position and direction of damage points are located at two frequencies, accuracy within two centimeters.

Battery: high-capacity lithium battery (notes: it features large capacity, less weight, and environmental-friendliness, reducing costs)

Quality certification: IS09001:2000

Shell material: ABS

Overall dimension: 58x28x12cm

Weight: 1.8Kg

Technical parameters of SL-3088 transmitter

Working frequencies: 128Hz, 512HZ, 1KHZ

Current output: 0.11A

Voltage output: up to 120V

Power output: up to 20W

DC power supply: 12V 12AH high-capacity battery featuring large capacity, less weight, and environmental-friendliness, reducing the monobloc weight.

Working temperature: -25- +60

Shell material: ABS

Overall dimension: 26x20x10 cm

Weight: 2.8Kg (12V 12AH high-capacity lithium battery included)

Quality certification: IS09001:2000

【Detection Principle and Methodology】

    Working principle of SL-3088C coating condition detector: the instrument consists of transmitter and receiver. The transmitter is an independent 0.1A-1A device outputting detection signals, while the handheld receiver is used for tracing of piping routes, precise location of damage points and current measurement. The current intensity on the pipes attenuates as the distance increases. With the same pipe diameter, pipe material, and soil environment, the better the insulation between anti-corrosive coating and earth is, the less the current loss and the attenuation are. Otherwise, in case of the anti-corrosive coating damage, e.g. aging, falling, the worse the insulation is, the larger the current loss and the attenuation are. This system is the patented product of Jiangsu Shengli.

    Jiangsu Shengli Instrument Co., Ltd. is a professional company which is dedicated to design and manufacture of underground pipeline locators and anti-corrosive detection instruments. During the 30 years, it has been always engaged in development of products of high performance, sensitivity and anti-interference, making our products preferred by users. 

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