Resistivity Meters
measure electrical current's dissaptive properties.
See Also: Resistivity, Resistance Meters
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Resistivity Meters
DDR3
Integrated Geo Instruments & Services Private Limited
The DDR 3 Resistivity Meter is a specialized version of IGIS Resistivity meters designed for use in Resistivity surveys up to about 200m depth. It utilizes rechargeable batteries as power source to energize the ground thus eliminating the necessity of using the relatively expensive dry cells.
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Resistivity Meters
Precisely Measure Surface Resistivity, Volume Resistivity, or Resistance to Ground. Advanced Energy's Trek and Monroe resistivity meters offer accurate and repeatable measurements for surface resistivity, volume resistivity, or resistance to the ground.
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Tap Changer Analyzers & Winding Ohmmeters
Winding resistance test of inductive test objects, such as power transformers, is one of the most effective non-intrusive ways of checking its condition. Due to their advanced design, DV Power winding resistance meters provide high test currents (up to 100 A DC) and high accuracy (up to 0.1%) within light and portable test instruments. In addition to winding resistance measurement, it is also possible to perform simple, quick and reliable transformer on-load tap changer condition assessment by recording the test current during tap changer operation, also known as DVtest. Because of that, problems with a tap changer connection, contacts, and switching procedure can be detected.DV Power winding ohmmeters consist of single-phase RMO-T and three-phase TWA series. Models from the TWA series are designed for six-winding resistance measurement of power and distribution transformers, with only one single-step cable setup. As a result of reducing the total test time, it enables significant saving of time and money.Typical application areas of these instruments are high-voltage substations and industrial environments. They are intended to measure the resistance of:Transformer windingsOn-load tap changersGeneratorsElectrical motorsHigh-current bus bar jointsCable splicesWelding joints
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Resistance Meter
MS8-2L
M-module MC8-2L is a mezzanine module designed to measure resistance using a two-wire measurement scheme in eight channels (eight-channel digitizer). М-module МС8-2Л is installed on the mezzanine carrier - NM module and is connected to it via a local information highway. Up to four m-modules of various types can be installed on the HM module. The NM 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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Transformer Winding Resistance Meters
TWA Advanced Series
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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Electronic Power Testers
Axi'An Beicheng Electronics Co., LTD.
Electronic Power Testers by RuoShui; HART process calibrators, process calibrators, digital earth resistance tester, insulation resistance tester, SMD resistor, digital capacitance inductance meter, LCR meters, surface resistance meter, and more
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Circuit Breaker Contact Resistance Meters
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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Battery Capacity Analyzer
601B
The 601B 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 and measuring the battery's internal resistance, this meter displays the remaining battery capacity as an indicator of the battery’s health. Powered by the battery under test, the 601B supports testing of both 6 V and 12 V storage type lead acid batteries.
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Digital Micro OHM Meter
NMC's Digital Micro Ohm Meters are low cost, compact, light weight, 3½ digit resistance meter suitable for measurements of resistances of cables, wires, transformers, motor windings, coils and contact resistance of switches, connectors, relays and track resistance of PCB's etc. The value of resistance is displayed on 7 segment LED display. Four terminal measurement systems provide measurements free from errors due to contact resistance and test lead resistance.
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Transformer Winding Resistance Meters
RMO TD Series
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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Wood Moisture Meter
Using the principle of electrical resistance, pin-type meters use the board as an element in a circuit by driving two pins or electrodes into it. This method works because moisture conducts electricity well and dry wood is an effective insulator.
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Field-installation Type Electric Resistivity Meter (Two-Wire Transmission)
HE-300R
HE-300R 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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Resistivity Meter
Resistivity meterRSM-500 is used for measuring the volume resistivity of transformer oil and other electrical insulating liquids. • Auto ranged from 109 to 1015 ohm cm • Test voltages: internally generated +500V DC
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Electrical Calibration
GF6018A
Beijing GFUVE Electronics Co.,Ltd.
The equipment is compliance with national verification regulation: JJG1242005 "Ammeter, voltmeter, power meter and resistance meter verification rules" and related national standards. 0.05 single-phase AC/DC standard source, can verify magnitude 0.2 and the following AC/DC voltmeter, ammeter, frequency meter, resistance meter. The source signals by using DSP and 16-bit high-speed analog-to-digital converters of controllable sine wave, the distorted wave signal source.The equipment comes with RS-232 interface, can be connected with PC to a semi-automatic verification system. It has precise interface and multi-functions including verification, storage and query.The equipment adopts color LCD screen, chart character display is clear, with high precision, stable and reliable, convenient operation and flexible characteristics.
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Femto / Picoammeter And Electrometer Meters
B2980 Series
The Keysight Femto / Picoammeters and Electrometers / High Resistance Meters offer best-in-class measurement performance and unprecedented features to maximize your measurement confidence. The Femto / Picoammeters and Electrometers both offer 0.01 fA (0.01 x 10-15 A) minimum current resolution, which meets virtually all existing and future low-level current measurement needs. The Electrometers feature a 1,000 V voltage sourcing capability that supports up to 10 PΩ (10 x 1015 Ω) resistance measurements. Both of the Femto / Picoammeter and Electrometer have battery powered versions to eliminate AC power line noise, providing unmatched level of noise reduction, enabling low-level measurements that were previously impossible.
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Contact Resistance Meter
4.5 Digits LED display Range : 0 TO 1999.9 W to 199.99mW High Measurement Current : 100A DC max. True Four wire resistance measuring technique eliminates lead resistance errors inherent in 2 wire systems. Fully protected against overloads. Proven design
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Transformer Winding Resistance Meters
RMO TW Series
The RMO-TW instrument can perform a simple, fast and reliable verification of a transformer on-load tap changer. This instrument allows measurements of a winding resistance at each tapping position of an on-load tap changer without discharging between tests. Problems with OLTC switching, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD screen.
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Rechargeable Accumulator for VES equipments
P100-2-N
A valid and ecological alternative to old 90V battery, P-100-2-N represents a renewable energy source for Vertical Electrical Soundings (VES). More accumulators can be connected in series to obtain up to 1000V.P-100-2-N is compatible with all PASI earth resistivity meters.
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Winding Resistance Meter 50Amps, 3 Channels
WR50-13
Raytech Digital Winding Resistance meter WR50-13 is the enhanced version winding resistance system with a most advanced demagnetizing circuit. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Resistance Meters
High-Speed High-Stable Resistance Meter with Low-impact Resistance Measurements for Miniature 008004-size Electronic Parts
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Contact Resistance Meter
CRM 200B+
CRM directly measures micro-ohm values at 200A DC under live EHV switchyard conditions quickly & accurately. It is specially designed to reliably measure micro-ohm contact resistances of Circuit Breakers, Isolators, Busbar joints, earth switch joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards up-to 765 kV. SCOPE’s ability to make electronics work in such environment enables CRM to measure mili-volts signal in the presence of kilo-volts noise.
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Cable Electric Resistance Tester
MR 270 C-A
The MR270C-A is specially designed for electric resistance measurements in cable industry applications and inductive loads (transformers, motors). It is perfectly fit both for measuring the meter resistance in connection with a corresponding resistance measurement holding device or for final acceptance control of power cable reels. In the case of cable reels, which often have a cable length of several kilometers, both the compensation of the inductive component and the ability to perform measurements in the presence of high noise levels are important. This also applies to the winding resistance of transformers and motors.
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Starter Kit For B2985/B2987
N1410A
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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Surface Resistance Meter
990SRM
The Model 990SRM is a convenient, pocket-sized meter for measurement of surface resistivity and resistance to ground.
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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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Atlas ESR PLUS - Equivalent Series Resistance Meter
ESR70
The Atlas ESR provides instant measurement of a capacitor's ESR and it's capacitance value. Using the supplied gold plated probes (removable), the Atlas ESR can measure ESR down to a resolution of 0.01 ohms, up to 40 ohms. It can even measure ESR for capacitors that are in-circuit. Measurements are made at the industry standard frequency of 100kHz. Probes are now removable, allowing 2mm compatible probes to be fitted. Audible alerts are produced for various ESR levels allowing you to perform many tests in succession without having to look at the display.
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8 channel Memory Earth Resistivity and IP Meter
SuperSting R8 IP
The SuperSting R8 IP is a state-of-the-art multi-channel portable memory earth resistivity meter with memory storage of readings and user defined measure cycles. It provides the highest accuracy and lowest noise levels in the industry.This new instrument revolutionizes the field of resistivity imaging surveys by its capability to simultaneously measure up to 8 channels using a high power transmitter so that field data production can reach previously unheard of speeds
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Transformer Winding Resistance Meter
10A
*10A DC continuous current in 4 ranges of 0.01A, 0.1A, 1A and 10A.*4 ½ digit display for higher resolution.*Dual channel measurement.*Suitable for operation in energized switchyard conditions.*Specialized protection circuits for suppression of inductive voltage kickback.*SMPS based - lightweight and portable.
