Tianjin Grewin Technology Co., Ltd.  

Product Name: 8km 16km 32km Measurement 8km Tdrl Cable Fault Locator with ISO9001 Model NO.: TDRL-902 Color: White Customized: Non-Customized Certification: CE, FCC, RoHS Power: Electricity Cable Type: Shielded Test Region: Forming Cable Measurement Distance: 8km Resolution Ratio 1: 1km Below 1m Resolution Ratio 2: 2km Below 2m Resolution Ratio 3: 4-8km, Below 8m Impulse Range: 30V Blind Zone: 1m Wave Velocity Range: 100m 300m Adjustable Gain Range: 80dB Volume: 225mm*155mm*50mm Weight: 0.42kgs Without Battery Operating Temperature: -10c-40c Humidity: 5-90%Rh Trademark: Grewin Transport Package: Export Standard Carton or Customize Strong Pallet Specification: CE, ROHS Origin: Tianjin HS Code: 85043190 Product Description Product Description1.IntroductionThe TDRL-902Cable Fault Locator is aportable handhold device used for locating the broken fault, cross fault, insulation fault and so on. It can be used to measure the cable length, wave velocity and distinguish the middle joints and terminals.It is asimple locating device, adopts to kinds cable and specially, the telecomputer cable. https://grewin-tech.com/cate-10820-12868.html 2.Product Pictures Introduction:TheTDRL-901 Cable Fault Locator is aportablehandholddevice used for locating the broken fault, cross fault, insulation fault and so on. It can be used to measure the cable length, wave velocity and distinguish the middle joints and terminals.It is asimple locating device, adopts to kinds cable and specially, thetelecomputercable.Design Features:TDRL(Time Domain Reflectometry)method make it possible to measure broken fault, cross fault, insulation fault and so on.Automatic measurementAuto power-off when sleeping and low battery voltageFriendly user interface, easy to operateSupply by dry batter or recharge batteryHandheld device, easy to carry.Tech. SpecificationsMeasurement distance0-8km, 0-16km,0-32kmResolution ratio0-1km,below 1m;2km,below 2m;4-8km,below 8mImpulse range30VImpulse width80ns-5μs,auto adjustmentsBlind zone1mWave velocity range100-300m/μsAdjustable gain range0-80dbSupply powerAA battery x6pcsVolume225mm×155mm×50mmWeight0.42kgs without batteryOperating Temperature-10ºC-40ºCHumidity5-90%RHElevation<4500mworkingprinciple&Product StructureBasic working principleDistance locating:This device using TDR(Time Domain Reflectometry).When locating,low voltage pulse is injected into and spread along the cable until reach the impedance mismatch point.These points include the short circuit point, fault point,middle connector and so on.When reach these points,the pulse reflection will be send back and record.See Figure.1Figure 1shows afault point in acable,Δtis the time during transmitted pulse and pulse reflection is received,so fault point distanceLx:V:pulse Traveling-wave speed.DeviceconfigurationsTDRL-901 cable fault locator including main engine, testing lines and documents.Display interface when working1ØTransmitted impulse2ØBattery lever3ØTemporarily storemark4ØComparing mark5ØCursor6ØDistance7ØReflection impulse of cable fault point8ØWave velocity9ØMeasuring range10ØGain11ØDisplay scaleApplicationFault determined:When cable fault appeared, pls first judge fault feather and broken lever. The TDR fault are divided into three kinds as below:Disconnection fault: cable broken and communicationdisconnect.Crossing fault which isgenerally classified intothree kinds:grounding fault, self-crossing fault, and common crossing. During these conditions, theinsulating layerwas broken even touched to affect the communication quality. Defective insulation fault:Choose testing rangeTo get complete testing waveform,the testing range shouldbe several hundred meters longer than the length of the cable.For example,if the cable is 900m,the testing range should be 2km.when found the fault point closer,reduce the range accordingly.This device offer below six testing ranges to choose, 125m, 250m,500m,1km,2km and 4km.Press 1or 2button to change the testing range.Check'basic function' for reference.Pls notice that,the device test once automatically afteronce range changing.The cable corn is entranced by moisture or water to reduce the insolation resistance.The difference between this and above crossing fault is this has abig resistance, common over thousand Ohms. In generally, for above first and second fault, it's easy to detect by pulse test, but for the third, user should consider the cable path, time of fault, range of the fault, environment and so on.Instrument Maintenance ChargeStandard configurationis 6AA NI-MH battery ,capacity above1300mAH is better.Dry battery is also ok if no NI-MH battery if necessary but need high capacity ones.*Pleasenotice don't putthe battery backwards. VISIT US AT WWW.GREWIN-TECH.COM 3.Design FeaturesTDRL(Time Domain Reflectometry)method make it possible to measure broken fault, cross fault, insulation fault and so on.Automatic measurementAuto power-off when sleeping and low battery voltageFriendly user interface, easy to operateSupply by dry batter or recharge batteryHandheld device, easy to carry4.SpecificationsMeasurement distance0-8kmResolution ratio0-1km,below 1m;2km,below 2m;4-8km,below 8mImpulse range30VImpulse width80ns-5μs,auto adjustmentsBlind zone1mWave velocity range100-300m/μsAdjustable gain range0-80dbSupply powerAA battery x6pcsVolume225mm×155mm×50mmWeight0.42kgs without batteryOperating Temperature-10ºC-40ºCHumidity5-90%RHElevation<4500mCompany introduction1.certificationWe have passed ISO9001:2015,CE,SGS approval and IEC report2.Company profile Tianjin Grewin is concentrating on transformers for 20 Years and complianted by ISO9001:2015,CB,IEC CB,CE etc.We're always pay great attention to its business philosophy "Quality and Honesty First".Grewin is specialized in the design and manufacture of wound components such as transformer,current sensors, chokes etc .windely used in communications,electronics,meters,industrial control,medical equipments and other fields.We are also aprovider of power meters and instruments locators. 85% of its products exported to America, Europe, and Asia etc.We sincerely invite you to join us to create abright future.3.Terms of Shipment:Within 10 working days after received related prepayment or L/C.4.Payment terms:(1)T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7days beforedelivery.(2) By irrevocable L/C at sight, to be issued immediately against confirmed order.(3)Payment by T/T, if order amount is less than USD 20,000.5.Warranty:(1)We provide 1year warranty.(2)If the product is defective, please notify us within 3days of delivery.(3)All products must be returned on their original condition, in order to qualify for arefund or exchange of goods6.Why choose us?Quality and honest first!A. Flexible service for diffierent transformers with high efficiency performance.B. Over 40 years experience of transformer designing and producing.C.100% test of every single product we produce from incoming material checking.D. UL, CE, ISO9001:2008E. We offer custom-made transformers, OEM and ODM are welcomeF. We deliver the quality you expect at consistently competitive pricesG.Transformer quality lifetime:10 Years.H.Specialty Sales service:5 -10 Years7.Flow chart of trading activities:NOStepDays need1Request for quotation1 day2Making quotations1 day3Offer and counter offer3 days4Sending and receiving samples3-10 days5Sample /confirm/iation3 days6Placing afirm order1 day7Paying and receiving the down payment1-4 day8Factory production &Quality inspection15-20 days9Paying and receiving the balance4 days10Delivery of goods1 days8.Contact:Tianjin Grewin Technology Co.,Ltd.Address: 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China.