Zero Resistance Ammeters
measure galvanic current and resistance. Also known as: ZRA
See Also: Ammeters, Nanoammeters, Picoammeters
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Electronic Resistance Stores
Is designed to reproduce the values of resistance to direct current through channels independent and galvanically isolated from each other and from the case.
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Resistivity Meter with Multi Electrode
POLARES
Till this moment the use of Electrical Resistivity Tomography (ERT) for geology has always been basically the same since its debut, based on the original vertical Electrical Soundings (VES) principles: applying a continuous current to two stakes inserted into the ground and measuring the corresponding voltage between other two. The applied current and thus the relative tension have always been continuous, with an inversion in polarity for each measure. The new tool POLARES uses an alternate current, instead, sinusoidal type, with an adjustable frequency.
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Resistance Substitution Box
RS Series
The RS Series Resistance Substitution Box is the most commonly used decade box on the market today. The RS Series is not only easier to use, but it is also priced lower than most its competition.
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Earth Ground Resistance Meter
1623-2
The Fluke 1623-2 earth ground tester measures earth ground loop resistances using only clamps, only stakes, or one clamp and stakes. With the stakeless test method, the Fluke 1623-2 is able to measure earth ground loop resistances for multi-grounded systems using only current clamps.
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Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also 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.All results can be exported in the report format.
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Clamp-On Type Earth Resistance Tester / Leakage Current Clampmeter
KM 1620 / KM 1720
Kusam Electrical Industries Limited
KM-1620 / KM 1720 single-jaw type Earth Resistance Tester is widely used for earth resistance testing of the equipments in the field of power, telecommunication, as well as the other electrical equipments. It features easy operation, high-accuracy and good adaptation of testing environment.
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Earth Resistance Tester
Weshine Electric Manufacturing Co., Ltd
specially designed and manufactured for the field measurement of ground resistance, adopts digital and micro-processing technology, 3 wire or 2 wire method to measure ground resistance, with unique calibration function for wire resistance, anti-interference ability and environmental adaptability, to ensure the long-term measurement of high precision, high stability and reliability; The instrument out shell adopts waterproof protection case, anti-collision, anti-fall, waterproof (protection grade IP65),which is strong, safe and durable, the instrument is also equipped with large capacity rechargeable lithium battery pack, especially suitable for outdoor construction site to use.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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IST(5KV~15KV)High Voltage Micro Ohm Meter,Insulation Resistance Tester Kit
Chongqing Assen Power Equipment Co., Ltd
ISF High Voltage Ohm Meter has a large LCD screen gray backlit display, data storage, data access, alarm, and automatic shutdown functions.
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Hardness & Scratch Resistance
Hardness can be defined as a material’s resistance to permanent deformation. In the coatings industry, hardness measurement can be used to determine the resistance of the coating to scratching from general wear and tear and also if a coating is fully cured.
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Resistive Current Tester
Weshine Electric Manufacturing Co., Ltd
Long Distance Digital Zinc Oxide Arrester Resistive Current Safety Testing Set
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Resistive Touch Controllers
Analog Devices offers a range of controller ICs for use with 4-wire resistive touch screens. These controllers can be used in human machine interface applications in consumer, automotive, and other products. Analog Devices’ controllers have 12 bits of resolution, SPI/I2C interface options, and low power consumption, making them ideal for use in handheld devices.
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Skid (Portable Skid Resistance Tester)
(also known as the British Pendulum Tester) is an essential tool for anyone with a duty to minimize the risk of accidents arising as a result of slippery roads and floor surfaces. This device is also used to investigate the cause of accidents after they have taken place.
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Transformer DC Winding Resistance Tester
HTZZ-5A / 230
Wuhan Huatian Electric Power Automation Co., Ltd.
Applicable for transformer to submit the dc resistance testproject around group in pick up and overhaul project.
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Thermal needle system thermal resistivity / conductivity measurement
MTN01
Hukseflux Thermal Sensors B.V.
The MTN01 Multi-purpose Thermal Needle System allows performing fast measurements of the thermal resistivity or conductivity of soils. It is specifically designed to be reasonably robust, as well as accurate. It is therefore suitable for laboratory as well as field- measurements of soil thermal properties. The sensor is a Non-Steady-State Probe (NSSP), TP07, which is mounted on the Insertion Tool, IT02. The system is operated using a hand-held Control and Readout Unit CRU01.
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UV Resistance Test Chamber
The UV Weather resistance test chamber is the world’s most widely used weathering tester to test types of damages include color change, gloss loss, chalking, cracking, crazing, hazing, blistering, strength loss and oxidation.
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Earth Resistance Tester
PeakTech Prüf- und Messtechnik GmbH
A Rugged sealed digital earth tester is built with all the protection you need for outdoor use. The instrument is suitable for the testing of single earth electrodes such as lightning conductors and other small earthing systems according to VDE 0413. The resistance of conductors such as continuity and conduit coupling joints can also be measured. Two-terminal operation measurement, which reduces the accuracy, can also be done by shorting P and C terminals. It has an advanced circuit design that permits the instrument to operate with the minimum influence from earth voltage and earth resistance of the auxiliary spikes.
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Global Standard Model For 4 Point Probe Sheet Resistance Automatic Measurement System
RT-3000/RG-1000F
*Fully automatic system for large sizes of flat panel with glass loading robot*Tester self-test function, Measurement position correction function, wide measurement range*Min. 0.1 mm meas. resolution and user programmable test pattern*Host (CIM) communication and 2-D/3-D Mapping software
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Earth Resistance Tester
M71
M71 has been developed to measure earth resistance with 2 wires and 3 wires by voltammetric method in compliance with standard IEC/EN61557-1.
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Winding Resistance Meter 50Amps, 3 Channels Rack
WR50-13R
Raytech Digital Winding Resistance meter WR50-13R is the enhanced version winding resistance system with a most advanced demagnetizing circuit as a rack version. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Digital Earth Resistance Tester
8PK-ST1520
Capable of measuring earth voltage (Vac.) 2mA measuring current permits earth resistance to test without tripping earth leakage current breakers in the circuit. Battery operated. Auto power off function. Data hold function. Small and light weight.
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Shoe Heat Resistance Tester
UI-FT28
Shoe Heat Resistance Tester is to test shoe outsole and upper hot contact resistance ability especially for safety shoe. Heat Resistance Test Method includes ISO 20344, SATRA TM49, EN 344 and etc.
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Transformer DC Winding Resistance Tester
HTZZ-10A / 235
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement transformer around the group and large power inductor dc resistance ideal equipment.
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Transformer DC Winding Resistance Tester
HTZZ-100A / 248
Wuhan Huatian Electric Power Automation Co., Ltd.
Applicable for transformer to submit the dc resistance testproject around group in pick up and overhaul project.
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1kV, 25 MHz High Voltage Differential Probe with Auto Zero Disconnect
HVD3102A
The HVD3000A series of high voltage differential probes cover the fullest range of applications, from 120/240 V switch-mode power supplies through 600 V class and 5 kV electrical apparatus. The table below provides a list of recommended probe models based on specific device under test applications.
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Multi-channel Resistance Meter
Changzhou Applent Instruments Inc.
Can scan and test 10 channels of resistance and can set a comparator for each channel. Its temperature compensation function can adapt different testing requirements. It can be applied to automation equipment.
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TRANSFORMER WINDING RESISTANCE METER
International Biological Laboratories
This Test set is suitable to measure winding resistance of transformers, single or 3-phase, star or delta connected upto several MVA.Two independent displays read the resistance of both primary & secondary windings simultaneously. However, primary or secondary winding can also be measured separately.
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Contact Resistance Measurement System
CRMS
The CRMS is a system designed to allow any user to measure the resistance of each set of relay contacts associated with the relay under test. The test system consists of a CONTACT RESISTANCE MEASUREMENT UNIT (CRMU), a MULTIPLE RELAY TEST RACK, as well as an interconnect CABLE ASSEMBLY. Either DC or AC energy to pick and drop relay coils under test for all contact measurements is supplied from the CRMU and easily interfaces with the Multiple Relay Test Rack. For additional and more thorough testing of relays an external relay tester can be interfaced to the Multiple Relay Test Rack to supply energy to the relay coil. It is recommended that the UTE Relay Tester With Timer/Counter (UTE Product # 15967-00) be utilized so the operator can take full advantage of the unique features it offers
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Handheld Digital Multimeter, AC/DC Voltage, Continuity, Diode, Resistance, Temperature, 3.5, 2000
72-13435
*Clear LCD Display*Equipped with comfortable protective cover, test probe holder*2m drop test, precision protection*Auto Power Off*Auto Backlight Off*Loud Buzzer Sound*Knobs shift smoothly, in-line with ergonomics*Powered by AAA 1.5V x 2 batteries*12-month limited warranty *view Terms & Conditions for details
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Insulation Resistance Testers
Shanghai Beha Electronics Co., Ltd.
*This is a variable high voltage insulation tester from 500V to 15kV in 500V steps.*The is menu driven and uses Dynamic Current Auto ranging technology.*It has a Bar-Graph which displays the voltage stressing the insulation while the test is in progress and the voltage decay during the automatic discharge of the tested circuit.*The top line of the display shows the elapsed time at the start of the test. Digital readout of the total time will remain displayed even after testing has ceased.*A 4-digit display (2000 counts) is showing the actual insulation resistance.*This instrument displays a voltage warning and sounds when AC or DC is present before injecting the test voltage.
