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WN-089 storage stray current detector is a stable, full-featured, safe, reliable, software processing, the structure of the new test tools, the ground can quickly detect the stray current in underground pipes, the stray current Monitoring and locating stray current to collect the inflow point and outflow point to quickly assess the effect of stray current, up to 24 hours of data collection and archiving of the results of independent research and development of domestic production of special testing equipment.Total circuit design using three large Scale integrated circuits Dual 16-bit high-speed A / D converters and high-speed ultra-low power 16-bit MCU with full-scale overload protection circuit can be used for multi-point, synchronous measurement of natural potential AC potential and DC potential gradient.
WN-089 storage stray current detector with ultra-low power consumption of high-precision features, each instrument has three fully isolated synchronous acquisition channel, the use of multiple instruments simultaneous measurement methods, reliable data storage in the large-capacity U disk on.
It is mainly used in underground gas pipelines, electrified railways, oil and gas reservoirs and other buried pipelines, etc. The instrument can detect the corrosion of underground pipes on the ground and find serious areas of corrosion in order to take protective measures (such as drainage protection, cathodic protection, Insulation, coating, etc.), to extend the life of the pipeline to reduce the occurrence of accidents.

'Main Specifications'
(A), technical parameters

Display: LCD liquid crystal display;
Measurement of the maximum display: 19999;
Overrange display: display 'OL'
Display: Full digital Chinese menu; automatically display the battery power; U disk capacity display;
Sampling rate: 1 ~ 25 times / sec (can be set);
Range: Auto range;
Channel: three channels of non-common ground, the channel completely isolated in the electrical;
Display: large-screen LCD display blue backlight;
Power: 8 AA grade AA batteries;
Working environment: -20 ℃ -50 ℃, relative humidity <80% RH;
Storage environment: -20 ℃ -60 ℃, relative humidity <90% RH.
Environmental protection: EN60068-2-29 / EN60068-2-6 / EN60068-2-32
DC voltage: -1000v ~ + 1000v; AC voltage: 0v ~ 600v, DC 1% AC 5%
Measurement accuracy: DC voltage ± (0.5% + 2d) AC voltage ± (0.8% + 5d)
Comparison of the ratio: DT-4, JT-6. With the contrast of 100%
Volume: 283 × 215 × 123mm
Weight: 2650g

(B) software processing problems mainly based on the following parameters:
The national standards in the parameter values;
The material and size of the pipeline;
Soil chemical composition, etc. These parameters are input to the computer in the form of input options, the computer combined with the measurement data and the use of special calculations, statistical methods and logical judgments, reasoning, to achieve an accurate assessment of underground pipeline interference corrosion.

(3) packing list: packing box 1 instrument bag 1 upper computer software CD 1 test line 3 deputy instruction manual 1 synchronization cable 1 cross screwdriver 1 U disk 1