Earth Resistance Testers
See Also: Earth Testers, Ground Resistance Testers
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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
Short-circuit and Earth Fault Indicators
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The Sensorform range of Short-circuit and Earth Fault Indicators detects short-circuit and earth faults on medium voltage underground cables. A wide range of options are available for enclosure type, power source, indicator type, reset method, trip-level selection, auxiliary outputs, and remote indication.
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Product
Full- Channel Resistivity Meter
ZZ Universal 64
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ZZ Resistivity Imaging Pty. Ltd.
Comprehensive resistivity instrument. 61 channel system.
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Product
Resistive Components
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Diamond is the best thermal conductor on earth. Combined with a low dielectric constant, it is an excellent RF dielectric material for high-frequency applications in which thermal performance is equally critical. By applying cutting-edge thin film process and extensive millimeter wave design experience, Smiths Interconnect has created a high-performance line of resistive components. The resulting products, our Diamond RF Resistives® resistors, terminations, and attenuators, are significantly reduced in size and unparalleled in average and peak power handling.
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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
Air Based Resistance
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Air Based Resistance Standards are designed for high accuracy resistance calibration in air.
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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
Contact Resistance Meter
CRM 200B+
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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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Product
Resistance Meter
RM3542A
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High-speed resistance meter ideal for automated lines; compatible with super-small electronic components • Testing source: DC • Fastest measurement time: 0.9 ms • Minimum integration time: 0.1 ms • Finest resolution: 0.1 μΩ
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Product
Resistive Load Banks
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Guangdong EMAX Electrical Co., Ltd.
Resistive load banks are an important tool for testing and verifying the performance of power systems such as generators, UPS systems and turbines. They simulate real-world electrical loads by dissipating power as heat through resistive elements.
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Product
Electronic Resistance Store
MEMS2-4L
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The mezzanine serves as an electronic store of resistance to direct current, the value of which is set by software, through two isolated channels.
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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
Open/Short Tester for Reverse Engineering Applications
Panther 2K-CT
Tester
Qmax Test Technologies Pvt. Ltd.
Panther 2K-CT is a versatile open\Short tester designed especially for reverse engineering application of tracing circuits of undocumented PCBA’s.Its innovative measurement technology helps tracing PCB tracks between components in a given circuit board. It can accommodate various types of clips\grabbers and connectors to access the device pins to trace the connectivity. Its user friendly software guides the user to place and move cluster of IC clips and probes to learn the connectivity and to generate netlist.
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Product
Concrete Bulk Resistivity
RCON
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Giatec RCON™ is a non-destructive device for measuring the electrical resistivity of concrete specimens in the laboratory without any additional sample preparation requirements. This measurement can easily be made on the same concrete samples that are currently used for the compressive strength testing of concrete.
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Product
Resistance Standards
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Ohm-Labs manufactures reference grade resistance standards from 10 micro-ohms to 10 teraohms. Each range of standards utilizes the latest advances in materials and processing for high stability and immunity from changes in ambient environment. All products are supplied with ISO17025 accredited calibration.
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Product
Resistance Temperature Detectors
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Sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
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Product
Explosion Resistant Oven
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All standard Gruenberg Ovens can be modified to be explosion-resistant. Explosion-resistant ovens incorporate design features that allow the oven to be operated within a volatile atmosphere defined as Class I, Group D, or Class II, Group E, F or G. Ideal for heating and drying processes.
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Product
Masks Respiratory Resistance Tester
WKS-1200
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WKS-1200 Masks Respiratory Resistance Tester applies to determining the inhalation resistance and exhalation resistance of respirators and mask protective products under specified conditions, and used for the relevant testing and inspection of ordinary mask products by the national labor protection equipment inspection agency or manufacturer.
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Product
MXE EMI Test Receiver, 3 Hz to 44 GHz
N9038B
Receiver Tester
The Keysight N9038B is a standards-compliant MXE EMI test receiver and diagnostic signal analyzer built on an upgradeable platform. You choose the frequency coverage you need to fully test devices with outstanding accuracy and sensitivity across required ranges.
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Product
DC Air Based Resistance
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DC Air Based Resistance Standards are designed for high accuracy resistance calibration in air.
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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
Rub Tester and Abrasion Tester
RT4
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This comparative test works by abrading a printed sample against a reference material under known conditions. The results can be used to identify alternative substrates, better ink and coating formulations or the suitability of finished cartons, films or printed books, magazines and promotional materials.
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Product
UV Resistance Test Chamber
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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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Ground Resistance Testers
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Whether you are doing a simplified 2-Point, a more complete 3- or 4-Point Fall-of-Potential test, a soil resistivity test or a touch potential test, AEMC has the right instrument for you. Our revolutionary clamp-on ground resistance tester will save you both time and money. Whichever AEMC ground tester you choose, you can count on it to be the highest quality, the most complete package and the simplest to learn to use.
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Product
DC/AC Earth Leakage Current Measurement
FDAZCT-11L-0.4
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Bipolar ±15V Power Supply.*Output ±5V at primary nominal current.*Applicable Frequency DC-18kHz.*Inside Diameter:φ11mm
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Product
Transformer Resistance Testing
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Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation resistance testing (as can be carried out by the Megger Transformer Ohmmeter (MTO) series of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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Internal Resistance Testers
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The Battery Internal Resistance Tester is essential for assessing the health and performance of stationary reserve power batteries. Designed for efficiency, this tester measures internal resistance, helping to identify potential issues before they impact battery performance. By providing accurate diagnostics, it enables proactive maintenance, ensuring reliability in critical applications. This advanced testing equipment is an invaluable tool for enhancing battery longevity and optimizing energy storage systems.
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Product
Resistance Temperature Detectors - RTDs
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Ashcroft® RTD sensor assemblies monitor temperature in industrial, process and hazardous installations. Available with Pt 100 and Pt 1000 RTDs, they are designed for use with either DIN 43772/T.2 or ISA-ds 49 style thermowells along with DIN and ASME type lag extensions. A wide selection of aluminum and 316 stainless steel connection heads make these RTDs configurable to the requirements of nearly any installation.
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Product
Insulation Resistance Tester
250-1000V
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Wuhan Fanke Transformer Manufacture Co., LTD
Professional Insulation Resistance Tester, 250-1000V
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Product
Electrometer / High Resistance Meter, 0.01fA
B2985B
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The B2985B Electrometer/High Resistance Meter is the world’s only graphical electrometer that allows you to confidently measures 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). It possesses a 4.3” color LCD with a graphical user interface that provides trend chart and histogram data in addition to numeric information.
