TC-SCM Stray Current Tester CC-SCM Soil Stray Current Tester

Consult with Manager Jessman Gao
1The impact and harm of stray current
Stray current interference refers to any direct current and/or alternating current forcibly applied to metal structures from external current sources (due to the generation of stray currents in soil by subways, electric locomotives, high-voltage lines, and transformer equipment, which cause corrosion and damage to underground pipelines in urban areas, long-distance transmission pipelines in the wild, and buried metal parts). The stray current flowing from the soil into the pipeline is the cathode, and the part flowing from the pipeline to the soil is the anode. The pipeline body suffers from severe corrosion, perforation, leakage, etc. For existing cathodic protection control systems, stray currents have a strong destructive effect and may pose a destructive danger.
2、TC-SCMOverview of Stray Current Tester Instruments
The TC-SCM stray current tester is developed by Beijing Dingyu Xingye Technology Co., Ltd. and fully meets the GB50698-2011 AC interference protection technical standard for buried steel pipelines, SYT 0017-2006 DC drainage protection technical standard for buried steel pipelines, and SYT 0032-2000 AC drainage protection technical standard for buried steel pipelines. In response to the irregular and large variation of stray currents, the TC-SCM stray current tester adopts a high-precision and high-speed A/D converter, which can collect 1000 data per second (through Fourier transform to truly test AC stray currents). It can collect and record AC and DC stray currents in real time, draw the variation curve of stray currents, and judge the situation of stray currents in pipelines.

3、TC-SCMPerformance and characteristics of stray current tester
·One machine implementation of AC and DC tube ground potential detection, AC and DC potential gradient detection functions;
·High reliability and portability: sturdy mechanical structure, fully sealed box, easy to carry;
·Synchronized data collection: By utilizing GPS signal time synchronization, multiple detection instruments can achieve synchronized data collection, making further analysis of the source and magnitude of stray currents more reliable and accurate.

4、TC-SCMTechnical parameters of stray current tester

volume	323×275×135 mm
weight	4.2kg
Testing items	Pipe ground potential（1 Dao), ground potential gradient（2 Dao)
data shows	real-time data display
refined linear measure	Data collection accuracy * small1mV, not greater than the detection potential10%
Synchronization accuracy	time synchronization accuracy100us
sampling frequency	sampling frequency1KHz
sampling interval	1s
recording medium	Internal solid-state drive with usable space greater than2G
temperature range	Working temperature:-20℃— 50℃
storage temperature	-40℃— 70℃
electricity pool	The internal power supply is12VRechargeable lithium battery, battery capacity10AhCan be connected externally12Vpower supply
machine shell	ABSEngineering plastic shell
connect opening	usb2.0interface1 One;GPSantenna interface1 individual