Contact Resistance
opposition to the flow of heat or electricity within a connection.
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Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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ITO Sheet Resistance Standards (ITOSRS)
Indium Tin Oxide Sheet Resistance Standards (ITOSRS) from VLSI Standards are NIST-traceable products, intended for calibration of both contact and non-contact sheet resistance measurement tools used in the LCD, flat panel and touch-screen markets.
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Decade Box, Calibrated, Resistance, 7, 1ohm to 11.11111Mohm, 1 %
72-7270 CAL
The 72-7270 CAL from Tenma is a resistance decade box. It is ideal for service, prototype and experimental use. This useful tool may be set resistance value from 1 to 11,111,110 ohm in one ohm increments. The decade accuracy is ±1% resistors used throughout. It has weight of 320g/0.70lb and dimension 14.7cm × 11.7cm × 5.5cm (5.79" × 4.61" × 2.16"). It is typically used in general applications, troubleshooting, maintenance, education and vocational training, production line testing, radio and TV services, working standards, research design & develop, physics laboratory work.
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4 Wire Earth Resistance & Resistivity Tester
4235 ER
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.
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Non Contact Measurement
There is no one-size-fits-all solution for accurate measurement, and different applications require different measurement systems. At Vision Engineering, we design and manufacture a broad range of non-contact measurement systems from toolmakers’ measuring microscopes to fully automated CNC video measuring systems with optional contact measurement available. Combined with the latest metrology software solutions available, we offer the right tool for the job.
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DC Air Based Resistance
DC Air Based Resistance Standards are designed for high accuracy resistance calibration in air.
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High Current Resistance Measurement Systems
Measurements International Ltd.
Modular Designed Base Unit with Expanded Capabilities to 10,000 Amp, Complete Turn-key System, Resistance and Temperature Curves, Complete Measurement Systems Available, Proven Technology.
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Ohm-Stat Resistivity Tester with LED Display
Range: 103 1012 ohms -100% accuracyMeasures resistance/resistivity, RTT, RTG and volume resistance with accessoriesAutomatic zeroing and power shut offCE approvedProduct conforms to the ESD S.20.20 spec standardsAutomatic voltage range selectorSmall, lightweight 2.6"x 5"x 1.2" (6.5 x 113 x 3cm), 8.4 oz. (233 g)LED display color indicates rangeLow battery warning lightLED display
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Manual Dielectric Constant, Tan Delta & Resistivity Test Set
*AC and DC test Voltages switched internally.*Direct digital display of test voltages.*Auto ranging and direct read out of volume resistivity.*Cell constant adjustment and Tan Delta zero correction.*Built-in protection for test sample flash over.
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Resistance Tester With Leakage Current (Loop Current)
GT00WD00ZY
*screen display*Double protection insulation*Non-contact measured resistance, safe, fast
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High Resistance Neutral Grounding Devices
HRG systems limit the fault current by placing high resistance between neutral point of transformer (or generator) and ground. As it is not possible to locate the fault point in delta connected systems, an artificial neutral point is created and delta connected system can be grounded. This allows a fault current of a few amperes thus locating the fault point gets easy. When the neutral point is grounded thru high resistance, both continuity of operation is provided during fault condition and sufficient current (typically between 2 A and 10 A) flow is provided for ease of locating the fault point.
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Phase Sequence Indicators (Contact Type)
888 PMR
Standard Electric Works Co., Ltd
● Indicates phase rotation. ● Indicates phase presence.● Indicates motor rotation/wiring.● Indicates battery status.● Phase rotation and motor rotation indication works from as low as 1Vac.● Small, rugged enclosure.● Color coded test leads.● Phase presence indication from as low as 100 Vac. ● Very low consumption.● Fused. ● Lightweight, robust and compact.● Works from 2 Hz to 400 Hz Sine.
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Ground Resistance Testers
IP67 protected top in the industry Test all ground types from Class A to Class D with a single meter Wide 0 to 2000 measurement range Minimize cabling time with innovative earthing rods and cable winder
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Battery Internal Resistance Tester
TOB-R-203
Xiamen Tob New Energy Technology Co., Ltd
Battery internal resistance tester used for lithium battery, lead-acid battery, Ni-Cd/Ni-MH battery and all kinds of batteries.
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Signal, Contact, ITA, TriPaddle, 10 Amp, 14-18 AWG
610110129
Primary mating contact 610110128. (May mate with other Receiver contacts, as well.)Specifications Operating Voltage & Current 10 Amps Max. Continuous (14 AWG)600 Volt Max. use of wire Mil-W-16878/4Contact Resistance 4 mOhms Max.Measured at 50 mV @ 100 mAContact Body BrassContact Plating 30µ” Au over 100µ” NiContact Termination Crimp/SolderCycle Life 20,000 CyclesRoHS Directive 2011/65/EU Status CompliantREACH Article 33 Status CompliantECHA Article 59 of Reach Regulation CompliantAVG Mating Force (lbs.) 0.41
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Radiation Resistant Resolver
Computer Conversions Corporation
Computer Conversions GT Transducers are brushless, Electromagnetic, Rotary Sensors used to provide Precise Absolute or Incremental Position, and Velocity feedback in harsh environments. All Computer Conversions Transducers are continuous rotation, bidirectional, and electronically passive devices (no electronic components to degrade or fail), that require zero maintenance, and may be installed in virtually inaccessible locations.
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Standard DIP Socket with Solder Tail Bifurcated Contacts
Series 511
Standard DIP Sockets with Wire Wrap Bifurcated Contacts. Features: Standard DIP sockets are available with solder tail or wire wrap pins, all with bifurcated contacts. Consult Data Sheet No. 12005 for wire wrap pins. Aries offers these standard DIP sockets in more sizes than any other manufacturer.
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Mini Coax, Module, Receiver, 90 Series, 19 Positions, for use with right-angle contact (p/n 610104160)
510104319
Use with right-angle mini coax contact (p/n 610104160) for mounting to PCBs. Includes holes for PCB mounting.Primary mating module 510108111. (May mate with other ITA modules, as well.)
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Transformer Winding Resistance Tester
KRI 9310
KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ，so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Resistance Temperature Detectors
Sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
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Digital Insulation Resistance Tester
HT2565 / 773
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for measuring insulation resistance of large capacity transformer, transformer, generator, high voltage motor and lightning arrester.
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Electronic Resistance Store
MEMS5
Mezzanine MEMS5 is designed to reproduce the values of resistance to direct current through five channels independent and galvanically isolated from each other and from the case.
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Digital Earth Resistance Tester, ERT-1502
Our Earth Tester is a very successful replacement of the conventional generator type hand tester. This device is most extensively used to test the earthing installation in numerous power based industries, electrical traction systems and telecommunication networks.
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Insulation Resistance Testers < 1 kV
With over twenty 1-kV models to choose from, selecting the proper Megger insulation tester can appear a bewildering task at first. Actually all the process requires is a little organization. All Megger insulation testers perform essentially the same test in fundamentally the same manner - accurately and reliably. Refinements and added features, however, separate one model from another in application and operator appeal.
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Winding Resistance Tester
JYR20S/10S
DC winding resistance testing is regarded as another essential routine screening tool. It indicates problems such as loose, defective or incorrect connections, which cause enough transformer failures each year to be regarded as a failure category of its own.
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IPX9K Rain Spray Testing Chamber / Rain Resistant Test Machine
CX-IP9K
Shenzhen Chuangxin Instruments Co., Ltd.
Water Spray Test Equipment is used to test the water resistance; which is mainly for electronic and electrical products. It can also provide references for product design and quality control.
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Surface & Volume Resistivity Meter for Nonconductive Materials
Hiresta UX
The new Hiresta-UX is a high performance meter for measuring the surface and volume resistivity of a wide variety of nonconductive materials. With an extended measurement range of 103 ~ 1014Ω, this meter is ideal for Production, Engineering, R&D and Quality Control. The new Hiresta-UX features powerful new algorithms that automatically choose the right voltage, which optimizes the surface and volume resistivity testing. This versatile, high performance resistivity meter includes a built-in switch box that can be mated with a J-Box (meets JIS K 6911 for surface & volume resistivity and is compatible with ASTM D 257) as an option. The Hiresta-UX can store up to 2,000 measurement results, which can be easily exported to a USB memory device.
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Rugged Door Contact Sensor with Universal-Style Magnet
ENVIROMUX-DCSR-U
Monitors access with a magnetic bridge sensor (no special inserts necessary). Ideal for commercial and industrial installations in harsh environments. Heavy-cast aluminum housing with 18-inch stainless steel armored cable. Floor-mounting hardware included. Universal-style magnet option has a smaller width and depth that provides greater installation flexibility. For normally open or normally closed circuit connection. Wide actuating gap, approximately 3". Maximum cable length: 1,000 ft (305 m). Dimensions WxDxH (in): Magnet: 3.13x0.81x2.13 (79x21x54 mm), Switch: 3.5x1.5x0.44 (89x38x11 mm). Regulatory approvals: UL.
