Resistance
that which keeps current from flowing freely.
See Also: Resistivity, Resistance Standards, Resistance Meters, Resistance Test, 4-wire
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Product
Ground Resistance
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Provide accurate and reliable measurements of both ground resistance and soil resistivity for installation and troubleshooting.
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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
DC Resistance Tester
DCSS502BC
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Resistance meter is designed to measure copper resistance of transformers, wires, cables, other conductors and other coil products etc. It is widely used of low resistance measurement of switches, heater wires, transformers, relays, motors, electric films and PC circuit boards, wires, cables, etc. With reliable Good/ NG judgement, it is a premier resistance meter for the use in production line or QC department.
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Product
Resistance Temperature Sensors
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Watlow Electric Manufacturing Company
These sensors are suited for applications where accuracy and stability are essential for proper control in applications that operate at or below 1200°F (650C).
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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
Electrical Resistance Probes
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Electrical resistance (ER) corrosion probes are commonly used in petroleum, chemical processing, and other environments where on-line corrosion rate readings are required. Whereas test coupons must be removed from the process for evaluation, corrosion probes can allow corrosion rate determination without probe removal.
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Product
Floor Resistance Test Kit
PMK-152
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The PMK-152 Floor Resistance Test Kit contains the instruments you need to take resistance measurements.The PMK-152 includes Prostat's PRS-812 Resistance Meter with 5 pound conductive rubber electrodes. You can take measurements at 10 and 100 volts with accuracy within ±5%.
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Product
Highly Inductive Resistance Meter
MR 8050
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With the MR 8050 resistances highly inductive Resistance Meters windings of transformers, motors and reactors can be measured. (range 100 µΩ with 0.01µΩ resolution up to 6 kΩ). The performance of the test objects can be up to 800 MVA or even more. The magnetic loading of a transformer is performed quickly using a high loading voltage (60V). This is important for time critical measurements (cooling curves). The unloading of the transformers core is very fast, very safe, as the energy is total destroyed in the MR 8050.
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Product
Temperature Stabilized Resistance Standards
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Measurements International Ltd.
The temperature stabilized resistance standards offer customers the very best in accuracy, and stability. With 3 different models to choose from, covering the full range of resistance values.
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Product
Portable Winding Resistance Tester
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1. Handheld winding resistance meter2. Conversion function for standard temperature resistance.3. 500 test data can be saved and download by flash disk.4. Temperature testing function.
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Product
Fungus Resistance Testing
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End-to-end testing helping you ensure your product's performance and resilience against fungal growth and fungus-susceptible field environments.
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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
Resistance Thermometry Bridges
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By using built-in or external standard resistors, resistance thermometry bridges measure resistance ratios with high accuracy, which are indicative of the temperature, among other things. These instruments are not only used in the field of temperature measurement, but − due to their high accuracy − also in electrical laboratories.
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Product
Earth Resistance Tester
G-TEST
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To check the condition of a grounding connection, an earthresistance tester is used to measure the residual ground voltage,resistance and resistivity (Wenner method).
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Product
Non-Trip Earth Resistance Measurement
M73
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M73 has been developed for operators who mainly work on private installations. M73 is very easy to use, it is very small in size and it carries out all necessary tests to establish COMPLIANCE (and hence ensure SAFETY) of an electric system.
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Product
Contact Resistance Tester
JYL
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As a high current passes through a pair of mechanically independent metallic contacts, the contact resistance must be as low as possible. Increasing the contact resistance of the contact often causes a large voltage drop on the contact, which reduces the input power of the load equipment. If the contact resistance of one or two contacts becomes large, the three-phase voltage of the load equipment will be unbalanced, causing phase loss operation.
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Product
Winding Resistance Meter
TRM 25
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SCOPE introduces 25 A state of the art precision winding resistance meter, specially designed for field testing as well as factory testing of large transformers up to 500 MVA. Winding resistance value of transformer and rotating machine are directly displayed on 5.7” TFT display. TRM 25 is designed to work in live EHV switchyard conditions, ensuring operator’s safety and repeatability of results. Maintenance time saving is ensured by one time connection to transformer with simultaneous resistance measurement of three / six windings, measurement of resistances of all taps with automated tap change and demagnetization facility. The meter is protected against the back-EMF offered by large inductive windings.
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Product
Resistance Meter
MS8-2L
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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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Product
Transformer Winding Resistance Meters
TWA Standard Series
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The TWA standard series instruments are designed to measure the resistance of six coils and simultaneously analyze the three-phase tap changer on load of the primary and secondary transformer coils (provided by model TWA40). This is done in a single cable configuration, with test currents up to 40A. Each transformer configuration has a special measurement algorithm that is optimized for rapid stabilization of test results. The TWA instruments generate a true DC current without ripple. Both current injection and magnetic circuit energy discharge are automatically regulated.
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Product
Megohmmeters/Insulation Resistance Testers
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Full line of megohmmeters with test voltages 50V to 5000V. Capability to measure insulation resistance up to 10T. These rugged, weather resistant meters are accurate, reliable and built to perform. Battery, AC Powered & Hand-cranked models available.
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Product
Contact Resistance Measurement System
CRMS
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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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Product
Surface Insulation Resistance Testing
AutoSIR2™
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One AutoSIR chassis can hold between 1 to 16 measurement cards and can monitor up to 256 x 2-point test patterns or 78 x 5-point test patterns, or 32 x 9-point test patterns at selectable intervals from minutes to days. Each channel is current limited (1 M Ω), ensuring that dendrites are preserved for failure analysis. The frequent monitoring capability provides a full picture of the electrochemical reactions taking place on a circuit assembly, and provides early trend analysis enabling tests to be curtailed, thus saving considerable test time and money.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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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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Product
Quantum Hall Resistance System
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Measurements International Ltd.
Quantum Hall System, System Accuracy to < 0.003 ppm with CCC Model 6200A, System Accuracy to < 0.015 ppm with DCC Model 6020Q, 5 Tesla Standard System Magnet, Stable Controlled Sample Environment, Base Temperature < 3.6 K, Low Operating Costs, Direct Transfer to 100 Ω, 1 kΩ, 10 kΩ, and 100 Ω Standards, System Range 0.1 Ω to 100 kΩ, Graphene Device Values 1 kΩ, 10 kΩ, 12.9064037 kΩ and 100 kΩ, Triple Sample Device Mounting.
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Product
Semi-Automatic Probe Sheet Resistance/Resistivity Measurement
CRESBOX
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• Multi-points measurement and Mapping display- 2-D map / 3-D map graphic display- Multipoint pattern measurement is programmed (maximum 1225 points) and random pattern is programmable by operator.• Film thickness conversion function from sheet resistance• Measurement data base link with Excel via CSV format file• Software language can be switched in English /Japanese by operator
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Product
Surface Resistance Meter
990SRM
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The Model 990SRM is a convenient, pocket-sized meter for measurement of surface resistivity and resistance to ground.
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Product
Sheet Resistance Measurement
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The Filmetrics® R54-series and R50-series sheet resistance measurement instruments have been developed based on over 45 years of KLA sheet resistance measurement innovation. The R50 measures metal layer thickness, sheet resistance and sheet conductance. The R54-series adds a light-tight enclosure, along with 300mm support, to provide metal thickness measurement solutions for semiconductor and compound semiconductor manufacturing.
