Resistance Meters
measure opposition to electrical current.
See Also: Resistance, Resistivity, Resistance Standards, Resistance Test, Resistivity Meters
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Product
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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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
High Resistance Meters
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Measurements International Ltd.
Direct or Substitution Measurements, Automatic and Manual Operation, No Temperature Coefficient, Multiple Modes of Operation.
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Product
Winding Resistance Meters
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The NMC 'TDR' is a high precision, new generation, light weight large output current and micro-processor controlled tester. This replaces old DC wheat stone bridge and double arm bridge for measurement of DC resistance. 'TDR' adopts new advanced test current power supply technology, four terminal measurement, digital display of resistance value and test current. 'TDR' is powered by 220V AC mains single phase supply. The measurements are accurate as the test current is highly stable. High automation is achieved with automatic discharge warning.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
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When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method 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, simultaneously with the measurement of tap changer motor current which helps with the detection of 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 on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D 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 shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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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
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
Circuit Breaker Contact Resistance Meters
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Vanguard Instruments Company, Inc.
The Vanguard Auto-Ohm 10 is a 10-ampere battery powered micro-ohmmeter designed for low-resistance-measuring applications such as the measurement of resistance in circuit breaker contacts, bushing contact joints, and welding joints. The unit is powered by four 3400mAh, 3.7Vdc Li-Ion rechargeable batteries. With these high capacity batteries, up to 2,900 tests per charge (10A/2 second duration) can be performed in the field.
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Product
Transformer Winding Resistance Meters
RMO TT Series
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The Tap Changer Analyzer & Winding Ohmmeter of the RMO-TT series is designed for winding resistance measurement of inductive objects, and for a tap changer analysis. The RMO-TT series is based on the state of the art technology, using the most advanced switch mode technology available today. The RMO-TT instruments are accurate (0,1%), powerful (up to 100 A) and still portable. The Instruments generate a true DC ripple free current with automatically regulated measurement and discharging circuit. RMO-TT instruments can perform a simple, quick and reliable transformer on-load tap changer condition assessment. This series of instruments enable measurements of a winding resistance in every tap position, current ripple values (percentage of a current drop during a tap change) and transition times during the tap changes. Problems with a connection, contacts, and selector/diverter switch operation (tap change with interruption) can be detected with these measurements.
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Product
Earth resistance meters
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The PROMAX earth meters guarantee the proper operation of industrial and home electrical circuits.
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Product
Electrometer / High Resistance Meter, 0.01fA, Battery
B2987B
Electrometer
The B2987B Electrometer/High Resistance Meter is the world’s only graphical electrometer that allows you to confidently measure small currents with 0.01 fA (0.01 x 10-15 A) resolution and large resistances of up to 10 PΩ (10 x 1015 Ω). In addition, battery operation eliminates AC line noise from your critical measurements.
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Product
Earth Resistance & Resistivity Meter
MRU-21
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* earth resistance measurment with 3-pole method, * measurement of continuity of equipotential bondings and protective conductors with auto-zero function - with current 200mA, * resistance measurement using 2-pole method.
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Product
Insulation Resistance Meter
1503
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The Fluke 1503 is a great choice for basic residential and commercial electrical insulation testing. This rugged, compact tool fits in the palm of your hand. The 1503 is the same form factor as the Fluke 1507 but with a few less features. You can count on it to handle the most common tests at a most affordable price. Additional features, like the remote probe, reduce the time needed to perform repetitive testing.
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Product
5kV Insulation Resistance Tester
KV3122
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KV Hipot Power Test Equipment Co.,Ltd
KV3122 Insulation Resistance Tester is suitable for measuring the resistance of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment. Digital insulation resistance meter is composed of medium and large scale integrated circuits, including high-precision micro current measurement system, digital boost system and automatic discharge circuit.
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Product
Component Test Fixture For N1413 With B2980 Series
N1428A
Test Fixture
The N1428A is designed to operate specifically with the B2985B / 87B electrometer / high resistance meter. It is provided with two component modules, which are used to hold SMD, lead, and various types of devices. Electrical noise effects are reduced by the employment of a shielded case. A built-in interlock circuit enables safe high-voltage measurements. The N1413A high resistance meter fixture adapter is also required to connect the N1428A to the B2985B / 87B.
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Product
Field-installation Type Electric Resistivity Meter (Four-Wire Transmission)
HE-200R
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HE-200R connects resistivity sensor (ERF Series) and measures resistivity and temperature in the sample water. It is suitable for measurement of UPW resistivity.
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Product
Contact Resistance Meter
PCRM200S
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The Motwane Manufacturing Company
The Motwane make Contact Resistance Meter (Model:PCRM200S) is a digital micro-ohmmeter, specially designed to measure extremely low resistance in micro ohm. The Instrument is based on Kelvin 4-wire connection method for measurement of low resistance.The Current injection is fixed at 100A & 200A. Test information like current injected with measured resistance & voltage drop is displayed with real time data on large LCD with backlit.This User friendly Instrument and it's accessories are housed in easy transportation case. Advanced Windows based software isprovided for data downloading, analysis and report generation. Internal memory of 199 records is provided for onsite data storage withDate & Time stamping & Recalling facility. Thermal printer is the additional feature provided to print the test results.
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Product
Earth Resistance & Resistivity Meter (for 50Hz mains)
MRU-120
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* earth resistance measurment with 3-pole,4-pole method, * earth resistance measurement without disconnecting measured earths (using clamp), * continuity of equipotential bondings and protecting conductors * two clamps earth resistance measurement without auxiliary test probs, * earth resistivity measurement,
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Product
Dynamic Contact Resistance Meter
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Dynamic contact resistance measurements are necessary to understand the condition of the arcing contacts of the circuit breaker. Static contact resistance measurements do not give us information related to erosion of arcing contact, misalignments of the contact, and damages to the driving mechanism.
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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
Panel-mount Type Resistivity Meter (Four-Wire Transmission, 2-channel)
HE-960RW
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HE-960RW connects resistivity sensor(ERF sereies) and measures resistivity and temperature in the sample water.This resistivity meter is ideal for such applications as the high-precision water monitoring employed at ultra-pure water plants used in semiconductor manufacturing.They utilize newly designed, high-precision, high-stability temperature measurement circuitry and a vastly improved temperature compensation function, an important element for measuring the resistivity of ultra-pure water.
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Product
Surface Resistivity Meter
395
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The ACL 395 handheld meter features sophisticated circuitry that allows for the same advantages as megohmmeters, but at an economical price. Utilizing color-coded zones, the LED scale is easy to read and evaluate. Half decades indicate where the measurement value falls within the decade giving a closer indication to actual value. Unlike other pocket-sized meters, the ACL 395 features rubber rails which provide the best possible contact.
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Product
Contact Resistance Meter
CRM 100B+
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SCOPE introduces its next generation of hugely popular CRM series contact resistance meter, CRM100B+ in all new super light avatar, based on cutting edge ultra capacitor technology. CRM incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers.
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Product
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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Product
Syscal R1 Plus Switch
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The SYSCAL R1 Plus resistivity meter is specifically designed for medium-depth exploration. It combines a power source, transmitter up to a 200W or 1200Vpp output voltage, and a 2 channels receiver in a single unit; its compactness makes it an effective tool for intensive resistivity surveys.
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Product
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
Industrial Resistivity Meter
HE-480R(W)
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The HE-480R industrial resistivity meter features the high-precision temperature compensation function.Its high-performance temperature compensation makes it ideal for sequential monitoring of ultra-pure water used in manufacturing processes in the semiconductor field, and many other fields, including the areas of electrical goods, foods and medicines. The measurement range is from 0 to 100.0 MΩ・cm.
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Product
Insulation Resistance Meter
AMIC-2505
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Measurement of insulation resistance: 500,1000 and 2500V (2TΩ) ; 2 and 3 wire method ; Measurement of DC and AC voltages at 0...600V ; Measurement of leakage currents
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Product
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.
