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Hongda Instruments
深圳弘大电子有限公司
地址：深圳市龙岗区横岗街道荷坳金源一路 号 栋 楼12 F 2
电话( )：( Tel 0755)82441879 82445352
传真( )：( 邮编Fax 0755)82443854 （ PC):518115
网址(Website):www.szhongda.net
地下油气管道 电气化铁路 地铁
油气库 煤矿及其它矿用 其它地下管线
HD 070 Storage Stray Current Tester-
最先进的杂散电流检测仪器，避免和减少地下管道腐蚀
The most advanced stray current tester instrument, to avoid and reduce the corrosion of underground pipelines
Underground gas pipeline Electrification rai lway Subway
Oil & gas storeroom Coal mining and other mining
潜艇战士检修电气设备用的是弘大的DT9205型优质仪表
海军南海舰队372潜艇在前不久海军组织的一次实战化紧急拉练和战备远航训372
372 在372
弘大员工为自己的产品能够帮助372 参与了372潜艇奋力排险的过程感到自豪。弘大公司将继续努力，为部队、企业提交优质高效的检测仪器仪表产品。
练中，在海底遇到“水下断崖”的重大险情后，全体官兵舍生忘死奋力排险，克服重重困难，园滿完成后续任务。 潜艇官兵的英雄行为受到习近平总书记和中央军委领导的高度赞扬及表彰，海军给 潜艇记一等功。
潜艇官兵抗拒险情，克服困难的过程中，负责潜艇电路维修的官兵使用的仪表正是深圳弘大电子有限公司生产的数字万用表等产品。 潜艇的官兵检查排除电路故障，
Other underground pipel ine
Submarine soldiers used Hongda DT9205 high quality multimeters to service the electrical equipment
图为 播出的 潜艇士兵采用弘大仪表检修电器故障的画面CCTV 372
CCTV-1 Show the Video: 372 Submarine sold iers is using Hongda DT9205 multimeters to service the electr ical equipment .
Shenzhen Hongda Electronic Co Ltd .,
ADD:Block F,12Jinyuan 1 Road Heao Community Long Gang District Shenzhen , , ,
电子邮箱(E-mail):[email protected] [email protected]
香港天弘實業有限公司
地址：香港九龍灣宏冠道6號鴻力中心A座10字樓A18室
电话( )：(Tel 00852)27964292
传真( )：(Fax 00852)27967745 网址(Website):www.szhongda.net
Hong Kong Uranus INV Co.,Ltd
ADD:Flat A 18,10/F,Block A,Proficient Center,6 Wang Kwun Road,Bay,KLN,Hong Kong
电子邮箱(E-mail):[email protected] [email protected]
Recently in a real emergency pull and readiness to sail training which was organized by navy ,South Sea Fleet 372 submarine metgreat danger “Underwater bluff” under the sea .All the soldiers disregard their's own safety to remove danger .In finally ,they overcomed mountains of difficulties to finish the follow-up task . The heroic deed of 372 Submarine soldiers was highly praised and commended byGeneral Secretary Xi JingPing and Leaders of central mil itary commission , Navy gave 372 submarine order of merit.In the process of 372 submarine soldiers against danger and overcome difficulty ,the multimeter DT9205 that was used by soldiers who were in charge of servicing the submarine circuit was precisely poducted by Shenzhen Hongda Electronic Co;Ltd. All staffs of HongdaCompany was pround of the fact that Hongda meter DT9205 can be so helpful in the 372 submarine accident .
HD 070- 是一种性能稳定、安全可靠、功能齐全、结构新颖的杂散电流测试仪器。具有全量程过载保护电路，包含三个独立的模/数转换器（不共地），三通道可同步采样，并可实现多台仪器同步采样，有大容量存储功能。HD-070采用大容量充电电池电源，可延长现场测试时间。
HD 070- Is a kind of stable performance, safe and reliable, comp-lete function and structure novel stray current testing tools.Has a full range of overload protection circuit, consists of three independent (not to) the a/d converter, three-channel synchronous sampling, and can achieve moreInstrument synchronous sampling, large capacity storage function.Using high-capacity rechargeable electric HD - 070 pool, can prolong the test of time.
杂散电流的危害
应用领域：地下油气管道、电气铁路、地铁、油气库、煤矿等其它矿业。
Harmfulness of stray currentThe stray current from the soil to pipeline is cathode and the one from the pipeline to soil is anode,the pipe might be corrupted. stray current is destructive to the existing cathode protection control system and it’s also dangerous.It’s recognized in the world that,if 1 ampere DC stray current works on a steel pipe for one year,then it might corrpt about 10kg of metal.The stray current has great destruction to the oil and gas pipes.The stray current has become public hazard.Application:petroleum and natural gas pipelines,coal gas pipelines, oil storeroom,electrification railway,metro and the related maintenance engineering.Areas of application: underground oil and gas pipelines, electric railway, subway, fuel storage services, coal mines and other mining效益分析 经工程公司用户初步估算，使用散电流测试仪设备系统，可以节约管道检测费用（含人工费、材料费等）平均10万元/公里。一般来讲，一次测量距离在20公里以上，每次测量可节约检测成本：10万元×20公里=200万元。一项检测工程通常在100公里以上，因此可节约千万元以上。正确的检测分析结果，可以避免地下管道输送介质的泄露。避免一次这样事故的发生，产生的经济效益和社会效益是不可估量的。
Benefit AnalysisIt’s estimates by the engineering company that, using equipment pipeline system, might save the testing fees RMB100,000 for one kilometer of pipeline.Generally,if the measuring distance is longer than 20 kilometers,then it might save RMB2 million(RMB100,000*20 kilometers) for each measurement, A testing project is usually longer than 100 kilometers,consequently more than 10million mi-ghtbe saved.The correct testing and analysis results could prevent the leakage of conveyance medium in the underground pipeline so as to avoid the potential accident;the econmic and social benefits are invaluable.
作用范围 地下各种管线输送着工业和民用的各种介质，是城市生存和发展以及工业生产的生命线，也是最大最快的运输工具。但由于各种高低压输电线路、工厂、电气化铁路以及高层建筑物、构筑物防雷接地装置较多，杂散电流来源广、干扰大；管道外壁防腐绝缘性能差异较大；地下树根等顶破防腐层（沥青防腐吸水率高，老化快）；各种地下金属设施纵横交错，挤压、碰撞现象时有发生。所以，为了保障地下管线安全、有效运行，必须对其进行有效检测和维护。HD-070存储式杂散电流测试系统能在地面上检测地下管道腐蚀状态，发现腐蚀严重地段，以便采取防护措施（如：排流保护、阴极保护、绝缘隔离、涂防腐层等），延长管道的使用寿命，减少事,故的发生。
ApplicationThe underground pipeline are used to convey the various mediums for the industrial and civil purposes, Which are regarded as the lifeline of city development and industrial production,and it’s also the biggest and fastest conveying tool.However,as there are somany high and low voltage lines in the sky and a lot of lightning-proof grounding devices at these places such as factories,electeif-ication railways and buildings,the stray current has wide sources and big interruption; the anticorrosive andinsulating performance of the pipelines has big difference; the tree roots could pierce the anticorrosive layer (asphalt is easy to be aged as it absorbs water); the various metallic devices under the ground are placed in no order. Consequently in order to protect the safety and effective op-eration of underground pipelines, it must conduct effective test and maintenance to them.HD-070 storage stray current tester can test the status fo underground pipes on the ground,if it’s found it’s seriously corrupted,you should adopt the protective measures (current drainage,cathode protection,insulting and anticorrosive layer) to prolong the service life of pipelines and reduce the accidents.
系统软件
一般特性
1.箱体采用防水设计（但切勿将仪器浸入水中）。2.显示方式：LCD液晶显示。3.测量最大显示：“19999”。4.超量程显示：显示“OL”。5.电池电量显示。6.实时时钟显示。7.开停机时间显示。8.机箱内温度显示。9.通道状态显示。10.中文菜单显示。11.U盘容量显示。12.采样速率：1～25次/秒（可设定）。13.自动量程。
21. 附件：包装盒一个，仪器袋一个，上位机软件（在U盘里），测试笔1套，使用说明书一本，同步连线一条，4G优盘一个，优盘延长线一条，7.8V充电器一个，充电器电源线一条。
14.三个通道非共地，通道间在电气上完全隔离15.白背光。16.电源：充电电池。17.工作环境：-10℃～40℃，相对湿度<80%RH。18.储存环境：-20℃～60℃，相对湿度<90%RH。19.体积：280×235×120mm20.重量：2280g(带电池)，和付件一起总重3650g。
Characteristics
1. 2. 3. 4. 5.
The trunk adopts the waterproof design ( but not dip it in water )Display mode: LCDMax display :19999Over range display : OLBattery level display
6. 7. 8. 9. 10. 11. 12. 13.
Real-time clock display.Switch time display.Internal temperature display Channel status display.
Chinese menu display.U disk capacity display.The sampling rate: 1 ~ 25 times/SEC (set).
Auto range.14. 15. 16. 17. - 10 to 40 , 18. : - 20 ~ 60 , 90% RH.19. 20.
℃ ℃
℃ ℃ 80% RH.
The three channels use the different places respectively. White backlight. The power supply : rechargeable batteryThe working environment: relative humidity
Storage environment relative humidity Size: 280 * 235 * 120 mmWeight: 2280 g (with battery), 3650 g (with accessories)
21. Accessories : one packing carton , one device bag , software (in the U disk), one set test pen,user’s manual, one synchronization connecting wire, a 4G U disk, usb flash drive, one usb extension cable, one 7.8 V charger, one charger USB cable.22.A channel and the No. 1 Test line connected, B channels and No. 2 test lines connected, and C channel with No.3 .
在电脑上可通过专用软件设定仪器的测量项目、测试的地点、测试的管道名编号、测试开始/结束时间、拆分数据、查看说明书等。
On the computer , by using a dedicated software to set the instrument measurement projects, location , the pipeline name number, test start / ending time,split the data, view instruction, etc.
Software in the system
22. A通道和1号测试线相连，B通道和2号测试线相连，C通道和3号测试线相连。
杂散电流由土壤流入管道部分是阴极，由管道流向土壤的部分是阳极，杂散电流的流动，造成金属管体的腐蚀。对于现有的阴极保护控制系统，杂散电流具有很强的破坏作用，并可能因此带来危险。据科学测算，1安培直流杂散电流在一根钢管上流进流出，一年内将导致大约10公斤的金属流失。杂散电流对油、气金属管道、电气化铁路、地铁的腐蚀不但缩减其使用和运行寿命，而且易造成危险，形成社会公害。
