IPDB › China Industry › Instruments & Meters
China, Chinese Earthing Multi Modular Cable Tester Portable Cable Fault Test Equipment1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Test InstrumentCable Tester30V Portable Cable Fault Test Equipment8km Telephone Cable Tester
Tianjin Grewin Technology Co., Ltd.
Preview:
Product Description Name: 0-8km visual Cable Fault Locator Power Meter Along with the low-voltage pulse reflectometry, our systems implement advanced high-voltage pre-location technologies that allow to determine the distance to faults of various types with a minimal harmful effect on the cable lines.High level of safety during the testing with our cable test vans and mobile systems is ensured by built-in protection against overcurrent, overvoltage and overheating, as well as by the use of a continuous grounding monitoring, vehicle door closure sensors and self-health check monitoring.High speed sample system and high bandwidth input circuit are integrated in the tester to get the exact reflection curve of signal so that the distance of fault point to signal sample point can be calculated in high accuracy and high resolution Special sound location tester configuration can be applied to locate the fault point more exactly.The cable fault tester is suitable for measuring power cables, high-frequency coaxial cables, local telephone cables, street lamp cables, low-resistance of short-circuit, open-circuit disconnection faults, and various materials of various materials with different cross-sections and different media. Leakage and high resistance flashover faults. A powerful cable management system that automatically generates test reports.It can test a variety of 35KV under different voltage grade, different sections, different media and all kinds of material of power cable faults, including: open circuit, short circuit, low resistance, high resistance, high resistance leak flashover fault.It can be any cable length measurement of radio wave propagation in the known speed.It can test the power cables buried path and buried depth.route tracing evaluation of electric lines and cables.This Cable Fault Locator (hereafter referred as locator) can measure the exact fault location such as the broken line, cross faults, earthing, poor insulation and poor contact of the lead covered cables as well as plastic cables.The highlights for this locator are that it can test numbers of typical faults, features are as follow:Digital gain Adjustment control to make the gain adjustment very easy.Digital waveform automatically Identify technique to make sure no test dead zone.Top grade ARM single chip micro computer can make calculation and judge the fault waveform exactly.Large colorful LCD display; humanized operation interface; six function keys can do all the tests.High-energy Li battery, continuous work 10 hours (with special charger). SPECIFICATIONS Max range: 8 km (16km/32km are optional)Highest resolution: 1mDead Zone: 0 mPower consumption: 1WWeight(kg): 0.38kgDimension(mm): 204×100×36mm3Working temperature: -15oC to + 45oCStorage temperature: -20oC~ + 55oC USB storage (optional): transmit wave form to U disk, and analyze the wave form on computer WORKING PRINCIPLEPulse testing is a kind of remote testing method; one can locate the fault point without testing on the field or testing with end-to-end coordination. The principle of the theory is:The instrument emits a pulse to the line, when the line has faults, the pulse reflection will change. If the come and back time can be measured, the location of the fault point can be detected.Suppose the pulse transmission velocity in electric cable velocity is V, the come and back time that the pulse travels between the test point and the fault point is T, the fault distance is L, then: 2L = V T L = V T/2For example, the sending end transmits a pulse to the cable, after 20μs, the sending end get the reflection pulse. If the pulse transmission velocity in the electric cable is 201m/μs, the fault distance L isL = 201×20/2 = 2010m TESTING PROCEDURESDiagnosis of fault charactersTo insure the accuracy of the testing of fault point, the testing personnel shall diagnose the fault characters correctly and then choose the most suitable testing mode. The characters of telecom cable faults can be simply divided into the following several kinds: Broken line One or many cable core line are broken. Crossed lineThe insulating resistance between the different couple of lines drops and causes the communication amplitude drops. Earthing faultThe insulating resistance between the core line to the lead cover drops and causes low communication qualityCrosstalk noiseWhen the cable core insulation material is invaded by water or humidity, the insulating resistance will drop and cause low communication quality or even blocks.Bad insulationThe insulating resistance between different couple of lines and the core drops to a very low level, the communication quality comes under serious influences.Fault TestingCut off the cable to be tested both sides lines or equipment. Make sure the cable to be tested is free of voltage. Using this instrument to do intelligence testing first, if the fault cannot be detected and then you can change to manual testing.Locating fault pointThe tester will Judge the approximate location based on the testing result, then check the cable, cable gland, cross boxes, etc., depending on the actual situation.AUTO TESTPress, connect the testing lead line and fault cable line. Press and then the instrument will show the testing result.Note: The default setting wave velocity is 200m/ μ s, when you perform intelligence testing, the user shall check whether need to adjust the velocity.MANUAL TESTThe relevant setting and parameters will demonstrate on the underneath of the display screen. Press to adjust the setting and parameters.1) GainPress , until "Gain" shows reverse color display. Then press orto adjust the amplitude (1~99 adjustable), Press , the screen will display the waveafter gain adjustment. 2) RangeDuring manual testing, range decides the maximum testing distance of the instrument, so the range value shall be chose as longer than actual length of the cable tobe tested. To adjust the Range, press , until Range shows reverse color display.Press or to adjust the Range.3) VOPThe precision of the wave velocity, directly affect the precision of the testing result. So the wave velocity shall be calibrated according to the cable characters. Press ,until VOP shows reverse color display. Then, press or to adjust the wave velocity.Adjust the Range and VOP according to the characters and estimated length of the cable to be tested. Appropriately adjust the wave amplitude to make the waveforms on the display screen to be observed easily. Move the cursor to inflection of the reflected waveform. The fault distance will demonstrate on the underneath of the display screen.4) Waveform ComparisonPress until it displays "Press "-" to memory, "+" to both". Now press "" tosave the current waveform; press to call the original out and compare with the current waveform.5) Save File (Optional) Press until it displays "Press "-" or "+" to enter file mode". Now pressor to enter into file save mode.File save mode can not only test & save cable but also can check & analyze the original waveform.Save FileWhen you choose "Current Test", press to test the current cable. After test is finished, if you want to save file, you can press until "Press "-" to quit, "+" tosave" appears. Under this condition, press to normal testing mode; press to save the current file to U-disk.Check and analyze the previous wave filesPress until it displays "Press "-" to memory, "+" to both". Now press "" tosave the current waveform; press to call the original out and compare with thecurrent waveform. When you are interested in any wave files, you can press to analyze the current wave file. Under this mode, you can do some operation of the saved file. And the operation method is same as cable operation method. For detailed operation steps, you can refer to the manual testing chapterVOP REFERENCE TABLEItemsQuantity TDR Cable Fault Locator1PCS Test Line2 PCS Charger1 PCS Carrying Bag1 PCS User Manual1 PCS CD with management software1 PCS (Just for USB function) U-Disk1 PCS (Just for USB function) CHARGINGCurrent battery power is showed at the top-right of the screen. If the battery poweris inadequate, please use the instrument charger to charge it.The indicator light of the charge adapter will be red when charging; and it will turngreen after it's fully charged.PACKING LIST Insulatorssignal propagation velocity (m/us) High Polymer168-186 Filled polythene192 Polythene201 Teflon213 Paper pulp (0.13uF/Km)216 Foamed polyethylene246 Paper (0.117uF/Km)264 9.5mm coaxial (w)286 9.5mm coaxial(s)295 ATTENTIONSKeep display screen away from direct sunlight. The contrast ratio of LCD will dropwhen temperature higher than 60oC and it will return to normal when temperature is lowerthan 60oC.Before testing, better measure the voltage of fault cable to be tested, in order toavoid test errors or damage the instrumentDo not hit LCD screen.Company 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 a provider 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 a bright 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 7 days 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 1 year warranty.(2)If the product is defective, please notify us within 3 days of delivery.(3)All products must be returned on their original condition, in order to qualify for a refund 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 confirmation3 days6Placing a firm order1 day7Paying and receiving the down payment1-4 day8Factory production & Quality inspection15-20 days9Paying and receiving the balance4 days10Delivery of goods1 days8.contactTianjin Grewin Technology Co.,Ltd. Web:transformer.en.made-in-china.com Address: 2# MeiNian Plaza No.16 DongTing Road,Hexi Distr,300222,Tianjin China.
Purchasing Request
Note: Send your purchase request, and we will screen suppliers or manufacturers for you free of charge...