Resistance Meters
measure opposition to electrical current.
See Also: Resistance, Resistivity, Resistance Standards, Resistance Test, Resistivity Meters
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Product
Transformer Winding Resistance Meters
TWA Advanced Series
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The TWA advanced series instruments are designed for six-winding resistance measurement and simultaneous three phase on-load tap changer analysis of both the primary and the secondary transformer windings. This is performed with a one singlestep cable setup, with test currents of up to 40A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results. The TWA instruments generate a true DC ripple-free current. Both the injection of the current and the discharge of energy from the magnetic circuit are automatically regulated.
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Product
Resistance Meters
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High-Speed High-Stable Resistance Meter with Low-impact Resistance Measurements for Miniature 008004-size Electronic Parts
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
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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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Product
Resistance Meters
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ACL provides surface resistance/resistivity meters and digital megohmmeters to quickly and accurately measure resistivity.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TD Series
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Using the most advanced switch-mode technology available today, the RMO-TD series is ideal for winding resistance measurements of inductive objects. Transformer resistance meters and tap changer analyzers are perfect for testing:transformer windings (power transformers, distribution, autotransformers),all types of tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.In addition, transformer demagnetization can also be done with all RMO-TD instruments.The RMO-TD series contains 3 models, with maximal test currents from 25 A (RMO25TD) to 60 A (RMO60TD).The three independent voltage sense channels enable testing of three windings in series. This enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.All RMO-TD transformer resistance meters have a built-in tap changer control unit. It enables remote control of on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, DV-Win software is included which can be programmed 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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Product
Transformer Winding Resistance Meters
RMO TD Series
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The RMO-TD Series On-Load Tap & Winding Resistance Analyzer is designed for the measurement of winding resistance of inductive elements, and for tap changer analysis. The RMO-TD series is based on the latest technology, using the most advanced switching technology available today. The RMO-TD series is accurate (0.1%), powerful (up to 60 A) and lightweight. It generates true, ripple-free DC current with automatic metering control and a discharge circuit.
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Insulation Resistance Meters
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Scientific Mes-Technik Private Ltd
General purpose insulation resistance meterAnalog indicator, High measurement speedTest voltage range: 10 V to 500 VSuitable for Test capacitor insulation testEasy operation
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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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Product
Handheld Surface & Volume Low Resistivity Meter for Conductive Materials
Loresta AX
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The Loresta AX Resistivity Meter a handheld unit measures the low resistivity of samples with consistent accuracy. This resistivity meter measures resistivity using a wide variety of probes. The Loresta AX uses a standard RCF that enables the user to input other RCF''s if known.
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Product
Winding Resistance Meter 100Amps, 2 Channels
WR100-12R
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Raytech Digital Winding Resistance meter WR100-12R 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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Product
Geophysical Instruments
SSR-MP1-SL
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Integrated Geo Instruments & Services Private Limited
The IGIS Microprocessor based Signal Enhancement Resistivity Meter Model SSR-MP1-SL is a high quality microprocessor based data acquisition system incorporating several innovative features. The instrument design incorporates several advanced techniques of digital circuitry to make it reliable geophysical tool that provides high quality data useful for all types of mineral and groundwater exploration research etc.
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Product
Low Noise Test Leads For N1413 With B2980 Series, 3m
N1425B
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The N1425B is designed to operate specifically with the B2985B/87B. It can hold DUTs with large terminals being used with the N1426C. The N1426A with the N1425B is available for measurements of small DUTs such as PC boards or IC sockets. The N1426B with the N1425B enables the construction of simple custom-made test leads. The N1413A High Resistance Meter Fixture Adapter is also required to connect the N1425B to the B2985B/87B.
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Product
Resistance Meter
MT8-4L
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М-module МТ8-4Л is a mezzanine module designed to measure the resistance of resistive sensors using a four-wire measurement circuit in eight channels (eight-channel digitizer). М-module МТ8-4Л is installed on the carrier of mezzanines - module НМ-М and is connected to it via a local information highway. Up to four m-modules of various types can be installed on the NM-M module. The NM-M module, together with the m-modules installed on it, forms a VXI module of size C-1 and is used to create information measuring VXI systems.
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Clamp Meters
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oltage DC 600V with basic accuracy ±(0.5%+5d)Voltage AC 600V with basic accuracy ±(0.8%+5d)Current AC 400V with basic accuracy ±(2.50%+6d)Slimline Electric Clamp Meter Resistance 20M ohms with basic accuracy ±(1.0%+4d)Continuity buzzer sound at 300 ohmsDiode test current 0.3mA; Open circuit voltage 1.5VAccessories: test leads, carrying case, 2(AAA) 1.5V batteriesSize:8-1/16"L x 2-3/4"W x 1-1/2"HSlimline Electric Clamp Meter Weight: 7oz.2000 LCD display countsDecimal Point ReadingsDisplay with backlightData holdMax holdAuto power offLow battery indication
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Resistivity Meter
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Integrated Geo Instruments & Services Private Limited
The instrument design incorporates several advanced techniques of digital circuitry to make it reliable Geophysical tool that provides high quality data useful for all types of mineral and groundwater exploration research etc. The SSR-MP1 sends the entire current into the ground without wasting power for constant current generation thus increasing the signal strength to probe deeper layers.
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Resistivity Meter with Multi Electrode
POLARES
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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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Product
DIGITAL DC RESISTANCE METER
VE2516BU
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Micro Processor based DC Resistance Meter with PASS / FAIL indication.
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Product
SPA100
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Our highly sensitive source picoammeter is designed for measuring and logging very small currents down to the pA range - making it an ideal instrument for scientific and research applications, including physics, materials science and electron microscopy. Full-featured at an affordable price, the SPA100 combines sensitivity, accuracy and stability to allow users to measure low currents with high precision as well as conveniently source bias voltages for experimentation. SPA100 also doubles as an ultra-high resistance meter, measuring accurately into the teraohm range. As with all our “headless” products, the SPA100 connects to PC via USB and utilises our complimentary software EPIC - enabling users to easily measure, graph and capture readings with timestamps and measurement stability information.
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Product
Starter Kit For B2985/B2987
N1410A
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The N1410A is a starter kit for B2985B and B2987B Electrometer/High Resistance Meter and includes N1414A High resistance measurement universal adapter and N1415A Triax to alligator cable. The N1414A helps you setup the cables and makes the cabling setup easier. The N1415A is recommended to measure more than 1 nA current, but you can probably measure less than 1 nA current with appropriately shielding.
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Product
Winding Resistance Meter 100Amps, 3 Channels
WR100-13R
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Raytech Digital Winding Resistance meter WR100-13R 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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Product
4 2/3 Digital Resistance Meter
CS2-RS
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CS2-RS Resistance Indicator has been designed with high accuracy measurement, display and communication of Ohm (2 wire) as like as Coil of motor or transformer.The meter supports Field Calibration function. It can be calibrated with sensor (Resistance) to meet machinery structure.We build flexible function as like as 3 bank (for multi-range scaling and set point) and 3 external control inputs meet to various testing equipment inquiry.They are also building in 4 Relay outputs, 3 External Control Inputs, 1 Analogue output and 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of machinery and testing equipments applications.
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Winding Resistance Meter
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* Selectable four resistance ranges.* 4 1/2 digits LED display* High measurement Current (10A)* True four Technique elimanates lead resistance errors Systems* Fully protected against overloads* Proven design* Computer connectivity through RS 232
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Product
Earth Resistance Meter
EM 4058
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earth tester is a digital, microprocessor controlled instrument that allows to measure the earth resistance and ground resistivity (using Wenner´s method), as well as to detect parasitic voltages present in the ground. This instrument is suitable to measure earth systems in power substations, industries, distribution networks, etc., according to IEC 61557-5.
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Low Resistance Meter
MMR-640
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The MMR-640 meter is designed to measure very low resistance of resistive objects. This product is made to be used in power plants, railways and maintenance companies to measure resistance of:*breakers, contacts,*earthing conductors, equipotential bondings,*welded and soldered connections,*bolted connections,*and other resistive objects.
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Product
Concentric Pen Probe
807
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This miniature concentric ring probe allows for small areas to be measured for surface resistance in accordance to ANSI/ESD STM11.11-2006 when connected to a resistivity meter or megohmmeter.
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Chair Probe
CP-1500
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Stainless steel fabricatedTest chairs with a resistance meter like the Ohm-Stat RT-1000 Resistivity TesterIncludes banana plug to 4.0mm monaural plugMade in the USA
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Product
Resistivity Meter for Concrete
Ohmcorr Test System™
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OhmCorr has two probes spaced 1.97" (5cm) apart which are placed in holes drilled to a depth of 3/8th" (8mm) and filled with conductive gel. The direct digital read-out of resistivity is displayed on the LCD when the control switch is activated. OhmCorr and CorMap, when used together, provide an economical and sound diagnostic system of corrosion in reinforced concrete.
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Ohm-Stat Ground/Circuit Tester to Test ESD Ground
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Tests ground for all 110v electrical circuitsWill determine the status of all electrical groundsEasy to use LED lightsWarranteeProduct conforms to the ESD S.20.20 spec standardsIdentify electrical problemsUsed with the Ohm-Stat RT-1000 resistivity meter
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Battery Capacity Analyzer
600B
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The 600B Battery Capacity Analyzer addresses the need to test and maintain sealed lead acid (SLA) batteries used in backup power UPS, emergency lighting, fire alarms, security systems, and many other electrical systems. By quickly characterizing a battery's response to a load resistance, the meter displays the remaining battery capacity as an indicator of the battery's health.
