Earth Resistance
Evaluation of the conductance of earth grounding.
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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
Easy and Non-Destructive Airflow Resistance Measurements of Materials and Parts
CARE+
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The control of airflow resistance in the production of materials and components is a growing requirement in the automotive industry. CARE+ (Concentric Airflow Resistance Evaluator) is an apparatus designed to measure the airflow resistance of materials and parts. Measuring non-destructively, CARE+ is particularly applicable in the quality control of parts and materials.
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Product
Ground Resistance Inspection Box
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AllWin Instrument Science and Technology Co., Ltd.
Check the ground resistance tester each time prior to start work everyday morning and do some relevant records.
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Product
ESD LCD SURFACE RESISTIVITY METER (WITH 1 PAIR OF 5 POUND ELECTRODES)
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The ESD LCD SURFACE RESISTIVITY METER provides everything necessary to test work surfaces using the procedure outlined in the EOS/ESD-S4.1 standard. This test kit makes testing surface resistance easy – simply place the weights attach the cables, switch to the correct voltage and press the button to read resistance directly on the meter. The meter incorporates parallel probes on the bottom of the unit which allows the user to make surface resistivity measurements. The parallel probes allow for quick and easy testing of a variety of surfaces and materials, without the use of the five pound electrodes
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Product
Electrical Resistance (ER) Monitoring
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The electrical resistance (ER) technique is an "on-line" method of monitoring the rate of corrosion and the extent of total metal loss for any metallic equipment or structure. The ER technique measures the effects of both the electrochemical and the mechanical components of corrosion such as erosion or cavitation. It is the only on-line, instrumented technique applicable to virtually all types of corrosive environments.
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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
Resistance Measurement Meters
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Shanghai Beha Electronics Co., Ltd.
The meter digital milli-ohmmeter is a battery operated instrument wich supply a low current to the circuit under test, with which, stable, accurate measurement of low resistance can be made, still, over a wide range of values.
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Product
Resistance Grounded Systems (HRG/LRG)
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Neutral Grounding Resistors (NGRs) are used to limit the maximum ground-fault current. Restriction of fault current lowers hazards and reduces damage done to equipment. High Resistance Grounding (HRG) systems are often used on industrial and critical power applications to maintain system uptime during a first ground fault. HRG systems are also used in tripping applications to help control touch potential on portable loads and improve personnel safety.
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Product
1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester
TH2521
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Shenzhen Chuangxin Instruments Co., Ltd.
TH2521 AC Milliohmmeter is a high-performance and intelligent tester widely used to test contact resistance, internal resistance and battery voltage. The application of constant current source with 1kHz frequency can greatly eliminate the potential error caused by thermoelectricity on DUT. This meter has the function to automatically detect contact failures on test cable. At the range of 30mΩ, basic R resolution can reach 1μΩ. It is applicable for transformer, inductance coil copper resistance, relay contact resistance, switch, connector contact resistance, wire resistance, PCB line and via reistance dan metal defect detection, etc. In the mean time, signals, such as HIGH, LOW, PASS, can be output through HANDLER interface, thus it is very convenient to be used in automatic production line.
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Product
Metal Foil Low Resistance Chip Resistor
MFF
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*Low Resistance / TCR / EMF / Inductance*Excellent long term stabilityRoHS compliant and halogen free.*Lead free.*High precision current sensing and voltage division.
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Product
Winding Resistance Meter
TRM 104
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TRM104 is a portable winding resistance meter, designed to work in live EHV switchyards. Winding resistance values of large transformers up to 500 MVA and rotating machines are directly displayed. The meter is protected against the back emf offered by large inductive winding. A back-lit 4 line LCD with a user-friendly menu sets up the instrument for the test. Winding resistances and safety messages are also shown on this display. It is possible to measure the resistance of two windings simultaneously.The meter contains a special power source for rapid stabilization of test results.
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Product
Field-installation Type Electric Resistivity Meter (Two-Wire Transmission)
HE-300R
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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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Product
Iron Core Earth Tester
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Weshine Electric Manufacturing Co., Ltd
Transformer iron core grounding current tester is a high-precision clamp meter specially designed for measuring AC leakage current, current and voltage. Large diameter (80×80mm) can clamp φ80mm cable, or 96mm×4mm flat steel ground wire, suitable for cables Leakage detection and transformer grounding flat steel leakage measurement.
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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
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
200V 20 Ohm Portable Battery Resistance Voltage Tester
TOB-SM8124
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Xiamen Tob New Energy Technology Co., Ltd
200V 20 Ohm Portable Battery Tester For Battery Voltage and Resistance Testing. TOB-SM8124 Resistance Voltage Tester is a portable battery tester used for battery voltage and internal resistance test, it is Suitable for lithium-ion battery, nickel-metal hydride, lithium manganese, lead-acid battery and other single battery or battery pack with voltage no more than 200V.
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Product
Earth Leakage Relays
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Variable Earth Leakage Relays in compact 35mm din rail mounting cases for use on 3 phase electrical systems.
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Product
Surface & Volume Low Resistivity Meter for Conductive Materials
Loresta GP
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The Loresta GX Meter is an intelligent, multi purpose low resistivity meter equipped with software that calculates resistivity correction factors. A variety of 4 pin probes are available for use with the Loresta GX. The instrument is typically used in Product Engineering, R&D, and Quality Control. Applications include measurement of conductive paint, conductive plastics, conductive rubber, conductive film, silicon wafers, antistatic materials, EMI shield materials, conductive fiber, conductive ceramics, etc.
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Product
[5kV AC/6kV DC] Hipot and Insulation Resistance Tester, Rise/Fall-Time Control Function Equipped
TOS5300 Series
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The "TOS5300 Series" is a series of test instruments used in Hipot (withstanding voltage) tests and insulation resistance tests, two of the four tests regarded as necessary for ensuring the safety of electrical products. With an output of 5 kV/100 mA (AC) and 6 kV/10 mA (DC), the series can be used in Hipot (withstanding voltage) & insulation resistance testing of electronic equipment and electronic parts, based on the requirements of IEC, EN, UL, VDE, JIS, and other international safety standards and the Electrical Appliance and Material Safety Law. Also, the test voltage stability is improved with the adoption of a newly developed switching amplifier. Since the output voltage can be kept constant even when the AC line voltage or frequency changes, consistent testing can be performed, even when the power supply environment is in an unstable region. The TOS5300 is also equipped with a number of features that are capable of meeting a variety of test needs. It is a new low-cost standard model that provides thorough operability, reliability and safety.
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Product
Surface Insulation Resistance Testing
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Following over 2 years of intense research and development, we are proud to introduce the next generation of equipment used to measure changes in Surface Insulation Resistance.
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Product
Micro-Ohmmeter and Loop Resistance Tester
LRT 6000
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LRT 6000: The right solution for impedance resistance measurement in compliance with all aircraft specifications on plane, helicopter, rocket, army vehicles for both production andmaintenance. It is a very easy-to-use and versatile instrument. Its ergonomics allow the user to use it either placed on the ground or across one's shoulder or chest. Awide back-lit LCDdisplay combinedwith an intuitive keyboard ensures simple and easy operation.
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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
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
Insulation Resistance Measurement
MI20KVe
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The MI-20KVe High-Voltage insulation tester is a truly portable device that allows the measurement of insulation resistances using test voltages up to 20 kV.
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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
Transformer Winding Resistance Meters
RMO TW Series
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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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Product
Resistance System Kit
PMK-151
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The PMK-151 Basic Measurement Kit has all the functionality of the PMK-152, but adds computer downloading capabilities. It contains all the instruments you need to take a variety of resistance measurements.The PMK-151 includes Prostat's PRS-801 Resistance Set with modified 5 pound conductive rubber electrodes, the PRS-801 wide range resistance meter, and Prostat PRS-801 Connectivity software for computer data downloading. You can take measurements at 10 and 100 volts with accuracy within ±5%.
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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
Inline OEM High Resolution Thickness & Resistivity Module for PV / Solar Sorters
MX 152
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To allow three thickness scans during belt transport at different wafer sizes, two measuring bars, one from top and one from bottom, hold 3 sensors each.
