Micro Ohmmeters
measure low resistance in µA.
See Also: Ohmmeters, Teraohm Meters, Megohmmeters, Microhmmeters
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Contact Resistance Measurement Kit
LRM-10
The LRM-10 is a 10A micro-ohmmeter kit designed to measure low resistance for electrical interconnections integrity testing. The LRM-10 has a range from 0.01µΩ to 200Ω. It comes with heavy duty four points probes and it is compatible with a great variety of optional accessories.
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Ground Grid Tester
GGT Series
The GGT500 ground grid integrity tester is designed for inspection of the substation ground grid. It can also be used as a portable micro-ohmmeter with Both Sides Grounded and Remote Control functionalities. It is intended to inspection the conditions of a grounding system beneath substations, testing of medium- and high-voltage circuit breakers, disconnecting switches, high-current bus bar joints, cable splices, and different high-current links.In the United States when inspecting the quality of the grounding systems beneath a substation, the proper procedure is to inject 300 A DC during a time period of 60 s. This is what the GGT500 will do, and in that time period, the current path and voltage drop are checked. Also acting as a micro-ohmmeter, the GGT500 can test low resistance values by producing high test currents of up to 500 A.The instrument is placed in an unbreakable, plastic case with IP67 protective rating (with closed lid). Although very portable and lightweight, micro-ohmmeters have very high output power capabilities. High output voltage enables a wider measurement range at higher test currents, as well as the use of thinner/longer test cables. GGT500 ground grid integrity tester generates a true DC ripple-free (less than 1 % ripple) current with automatically regulated test ramps. This significantly decreases magnetic transients and ensures great accuracy.When used for testing in Both Sides Grounded conditions, a special current clamp powered from the ground grid integrity tester is used for measuring a current through groundings. If even a higher safety level is required, the remote control feature enables the operator to perform measurements from a distant location, away from the instrument and test object.
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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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Live-Line Micro Ohmmeter
Ohmstik Plus
The Ohmstik Live-Line Micro Ohmmeter measures the micro-ohm resistance of conductors, connectors, splices and switching devices positioned directly on an energized, high voltage lines. This measurement is much more direct than infrared thermography, and is not subject to emissivity, weather, current loading, background, and other influences that cause infrared errors.
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Microohmmeter
MMR-6500
The MMR-6500 digital meter is designed for measuring low resistances with a stabilised current of up to 100 A. The use of test clamps enables the safe measurement of breakers (high-, medium- and lowvoltage), isolators and other components earthed on both sides. The MMR-6500 series meters are equipped with a unique module in their class that measures inductive components which have a current of up to 10 A, enabling the winding resistance of motors, transformers and other inductive components to be measured. Another useful function is the temperature measurement and the automatic compensation of results with relation to the measured temperature or temperature set by the user. The system is completed with a recorder function. Special measuring algorithms and additional functions allow an appropriate measuring method to be chosen depending on the measured component and measurement conditions, thus, widening the application areas of the meter. The state-of-the-art user interface, various communication interfaces, wireless communication and communication with the computer, printer, 2D code reader are integrals features which enable full, comfortable and intuitive management of not only measurements and their results but also ID data of measured components.
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Micro Ohmmeter
HTHL-200P / 384
Wuhan Huatian Electric Power Automation Co., Ltd.
High-precision measurement for high-voltage switch contact (loop) resistance, also suitable for other occasions requiring high current and micro resistance measurement.
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200 A HIGH-CURRENT MICRO-OHMMETER
MPK-203x
The MPK-203x high-current micro-ohmmeter is a portable, microprocessor-controlled instrument. Has optimized filters and protections for measurements in electrical substations. Can be used to accurately measure very low contact resistances of high voltage circuit-breakers and switches, busbars, etc., with test currents up to 200A. It employs the 4 terminals-method (U/I measuring principle) to avoid errors caused by test leads and their contact resistances.
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Micro Ohmmeter
HTHL-200A / 381
Wuhan Huatian Electric Power Automation Co., Ltd.
Special instrument for circuit resistance measurement.
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Micro-Ohmmeter Calibration Kit
LOM-530
The LOM-530 is convenient single unit containing a complete set of (5) working standard grade resistors for complete calibration of micro-ohmmeters. The standard resistance values are those used by the LOM-510A Microohmmeter/Milliohmmeter.
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MICRO OHM-METER
UONT100A
International Biological Laboratories
This Test Set is capable to measure low resistance like switch contacts, breaker contacts, busbar splices, joints, fuses, low inductive windings etc. by circulating high value of D.C. through the contact/junction and measuring D.C voltage drop (4 terminal method) which, sent to instrument amplifiers , thereby being displayed on resistance meter.
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High Precision Digital 10A Micro-Ohmmeter
LRM-10™
The LRM-10™ is a lightweight and portable micro-ohmmeter designed to measure very low resistances from 0.01 μΩ to 200 Ω. It is the most accurate in its category.
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10 A portable digital micro-ohmmeter
MPK-253
The MPK-253 digital very low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1mA up to 10 A.
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Micro - Ohmmeter / Milli - Ohmmeter
Basic Accuracy 0.25%Max. Test Current : 5A (120mV) for 7002Max. Test Current : 10A (60mV) for 7272Manual or Auto RangeFour Terminal Kelvin Measurement6 Ranges with 1mV Best ResolutionMeasurement of Resistive and Inductive MaterialsSetting for HI, LO & PASS ReadingsMemory of 3000 Measurements DataProgrammable HI-LO Alarm with memory of 20 DataLarge LCD with Backlight & HOLD FunctionLow Power ConsumptionBattery Operated with AC AdaptorLow Battery (Voltage) AlarmLED indication for Invalid Resistance MeasurementCable Length Measurement in feet & metersUser Interface Software for PC Communication via RS232C(to USB Bridge) cableBuilt-inBatery Chaging Circuit & Calender Clock
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High Precision Digital 5A Micro-Ohmmeter
DRM-40™
The DRM-40™ is a lightweight and portable micro-ohmmeter designed to measure very low resistances from 0.01 μΩ to 200 Ω. It is the most accurate in its category.
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Contact Resistance Meter
PCRM200S
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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5 A portable digital micro-ohmmeter
MPK-254
The MPK-254 digital very low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1 mA up to 5 A.
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Micro Ohmmeter
HTHL-100P / 383
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for measurement of loop resistance of switch control equipment.
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The Lightest Micro-ohmmeter In The Industry
RMO-H
The RMO-H is a portable, battery-operated micro-ohmmeter based on state-of-the-art technology, using the most advanced battery mode and switching technique available today. The high-capacity Li-Po battery allows the generation of a ripple-free DC current of up to 300 A. The test current is user-selectable and generated in an automatically regulated test ramp. During the test, the RMO-H increases the current before the measurement and decreases it afterwards. This significantly reduces magnetic transients.
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10 A True DC Micro-Ohmmeter
AUTO-OHM 10
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. The Auto-Ohm 10 features a built-in charger that can charge the batteries when the unit is not in use.
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Micro-ohmmeters
MMR-650
Designed to measure very low resistances of both resistive and inductive types of objects, including amorphous core transformers. This product is made to be used in power plants, railways and maintenance companies, to measure welded and soldered connections, equipotential bondings, earthing conductors, contacts, bolted connections, windings of motors and power transformers and other resistive and inductive objects. MMR-650 can be also utilized on a production lines (eg. at the final production control stage). An innovative combination of a high-performance measuring device with a modern user interface and advanced data management system. Wireless data transmission, enhanced system of 2D codes and ability to print labels to identify test items, all contribute to bringing new quality of work and allow the user to perform a wide range of measurements.
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Micro-Ohmmeter
3207
The Ballantine 4 Digit Micro-ohm Meter 3207 measures Low Resistance in Milli and micro-ohms with precise accuracy. It employs the proven 4-wire measurement technique and eliminates the lead resistance inherent in 2-wire technique to give accurate readings.
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Contact Resistance Test Sets
When a high current passes through a pair of mechanically independent metallic contacts, the resistance must be as low as possible. An increase in resistance can lead to additional degradation, as I2R losses will cause local heating of the contact surfaces. Our range of micro-ohmmeters measure both steady state and dynamic low resistance values. With test currents up to 600A available, logging and trending are also available on some models. We ensure that our Contact Resistance tests sets are portable, making them suitable for field measurements. Our contact resistance testers’ portability makes them ideal for a vast range of resistance testing across the entire LV, MV HV and EHV spectrum.
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Ohmmeters
GAOTek provides state of the art, professional grade Ohmmeters for sale to the United States, Canada and Globally. GAOTek Ohmmeters are portable instruments that accurately measure electrical resistance between two points on a circuit. The Ohmmeters have their own power supply through their own battery, and are needed when the two probes (red: positive side of circuit, black: negative side of circuit) are connected to the two points in the circuit where the desired measurement is to take place. The circuit is turned off, which is when the ohmmeter sends its own current through the circuit. Units of Ohms, symbolized by the Greek letter Ω (Omega), are used as a unit of measure when measuring electrical resistance. In accordance with Ohm’s law, when the current is passing through a circuit is at its maximum, the resistance is said to be the smallest.
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Micro XRF
W Series
The W Series Micro XRF uses poly-capillary optics to focus the X-ray beam to 7.5 µm FWHM, the world’s smallest beam size for coating thickness analysis using XRF technology. A 150X magnification camera is used to measure features on that scale; it is accompanied by a secondary, low-magnification camera for live-viewing samples and birds-eye macro-view imaging. Bowman’s dual-camera system lets operators see the entire part, click the image to zoom with the high-mag camera, and pinpoint the feature to be programmed and measured.
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Micro Test Tubes
Shandong Drick Instruments Co., Ltd.
Length: 50mm, capacity is less than 0.8ml, apply WZZ-2S (2SS), SGW-1, SGW-2 and other automatic polarimeter
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Micro Ohm Meter
Changzhou Applent Instruments Inc.
It has easy operation and tests with high speed. It has high acccuracy, a wide range and high-cost performance. The test ranges from 1μΩ-20MΩ.
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SparkFun Micro OLED Breakout
The SparkFun Micro OLED Breakout Board breaks out a small monochrome, blue-on-black OLED. It’s "micro", but it still packs a punch – the OLED display is crisp, and you can fit a deceivingly large amount of graphics on there. This breakout is perfect for adding graphics to your next Arduino project, displaying diagnostic information without resorting to serial output, and teaching a little game theory while creating a fun, Arduino-based video game. Most important of all, though, is the Micro OLED is easy to control over either an SPI or I2C interface.
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Micro Melting Point Instrument
DRK8026
Shandong Drick Instruments Co., Ltd.
Determine crystal melting point of the substance to make sure its purity. Mainly used for determining the meltingpoints of medicine,dyestuff,spice and other organic crystal compounds.Using photoelectric automatic detection, Dot matrix LCD display picture technology, digital keyboard input, and has the initial melting, final weld automatic display,automatic recording of melting curve, automatically determine the melting point of the mean value function. The temperature system uses highly linear platinum resistance as detection elements and PID regulation technology, improved the melting point’s precision and reliability. The instrument establishes communication with PC through the USB or RS232, printing or saving the curve and it uses capillary Pharmacopoeia as sample tube.
