【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 depth（without interference from adjacent pipelines）
Current
accuracy:±2.5% of actual current（without interference
from adjacent pipelines）
Depth
accuracy: ±2.5% of depth（without 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: 0.1—1A
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.
