Ground Resistance Clamps
See Also: Ground Resistance, Ground Resistance Testers
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Water Resistant, Stand Alone, Humidity and Temperature Data Logger
RHTemp1000IS
The new RHTemp1000IS Intrinsically Safe humidity and temperature logger is a rugged, battery powered, stand alone device which can be used to automatically record humidity and temperature. This compact, portable, easy to use device is able to measure and record up to 16,350 humidity and temperature measurements per channel.
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Dual Display HVAC Clamp Meter w/ Temperature
DL389B
UEi Test & Measurement Instruments
• Dual Display• Input jack locks• Worklight• Backlit display• Auto/manual ranging• Min/Max• Test lead storage• Magnetic mount• User temperature calibration• Auto power off• Degree ºF or ºC• Low battery indicator• Test lead holder on clamp• 2-Year limited warranty
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Mini Digital Clamp Tester
M-210+
MULTI MEASURING INSTRUMENTS Co., Ltd.
・23mmφCT window and ultra compact size.・Data-hold function. Especially useful when working in dark or hard to get areas.
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Digital Earth Resistance Tester, ERT-1502
Our Earth Tester is a very successful replacement of the conventional generator type hand tester. This device is most extensively used to test the earthing installation in numerous power based industries, electrical traction systems and telecommunication networks.
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12-bit, 4 Analog Current Outputs With Separate Grounds, Optically Isolated 500 V
APCI-3504-C
4 analog current output channels with 500V optical isolation, 12-bit resolution, each output has its own ground line.
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Resistance Bridges - AccuBridge® Line
Measurements International Ltd.
The Resistance Ratio Bridge from Measurements International is the next generation replacement. Measurements International is pleased to release the next generation room temperature Direct Current Comparator Resistance Ratio Bridge.
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Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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Insulation Resistance Measuring Equipment
AMIC-5010
Insulation resistance measurement - 15TΩ: * 50 - 1000 V, in 10 V steps, * 1000 - 5000 V, in 25 V steps ; Memory of 999 results and transmission to PC ; Measurement of AC and DC voltage and capacity ; Measurement of leakage current and function with digital filter ; Measurement of continuity of protection and equipotential connections ; Adjustable alarm limits
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Hardness & Scratch Resistance
Hardness can be defined as a material’s resistance to permanent deformation. In the coatings industry, hardness measurement can be used to determine the resistance of the coating to scratching from general wear and tear and also if a coating is fully cured.
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AC/DC Digital Clamp Tester (CE)
M-270
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Wide current measurements with tear drop type 55mmφCT up to 2000A.*True rms reading for ACA and ACV.*Data-hold and Auto power off function.*Additional AC/DC voltage, resistance, diode test, continuity check.*Auto zero adjustment for DC current offset.*Conform to IEC safety requirements.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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Clamp Type Earth Resistance Tester
ETCR2000 / 730
Wuhan Huatian Electric Power Automation Co., Ltd.
Widely used in electric power, telecommunications, meteorology, oil fields, construction and industrial electrical equipment, such as grounding resistance measurement, circuit resistance measurement.
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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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Tools Clamp Meter
M266
Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
Tools clamp meter 266 266C 266F digital clamp meter.
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400A Dual Display Clamp Meter w/ Test Lead Storage
DL569
UEi Test & Measurement Instruments
Dual Display 400A Clamp Meter w/ Test Lead Storage
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Current Clamp Meter
CP 41
The CP 41 current clamp meter has been designed for reliable and accurate, non-intrusive measurement of AC, DC and complex waveform currents. Using advanced Hall Effect technology the CP 41 can measure currents accurately from 5mA to 40Amps.
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Swivel Clamp Meters
The Amprobe Swivel™ Clamp Meters feature a patented 180-degree rotating head design allowing a perfect of measurements in tight or inconvenient places.
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Ground Earth Resistance Tester
2678X
Shenzhen Chuangxin Instruments Co., Ltd.
Ground Earth Resistance Tester verifies the integrity (continuity) of the protective bonding of the equipment (Class I equipment) designed to secure safety through the basic insulation and protective earthing. It is also called earth (ground) bonding test. If the continuity of the protective bonding is confirmed, we can conclude that the equipment has the requirements for preventing electric shock even if the insulation between the primary circuit and the accessible conductive section fails and a fault current flows through the distribution system.
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Transformer Resistance Testing
Weshine Electric Manufacturing Co., Ltd
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 WESHINE Transformer Ohmmeter (VS-3110 series) of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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Battery Internal Resistance Tester
HDGC-3915
HD Power Test Equipment Co.ltd
Battery Internal Resistance Tester is designed using the advanced AC discharge measurement method to test accurately voltage and resistance of battery. It is strictly designed to evaluate battery performance, state and life-time, which maintain all stationary power systems including Uninterruptible Power System. Battery Internal Resistance Tester can proceed the measurement in a group and in a single section of battery. With accurate testing of resistance and voltage, it gives an indication of battery capacity and technical status. The measurement data can be read on the instrument display directly. And it can also be uploaded to PC simply by using the USB drive. With the analyzing software, you could not only keep a record of the testing result but also have detailed analyzing for the status of batteries in different testing conditions.
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NTC Clamp Temperature Probe
Si-RM2
This Si-RM2 temperature probe accurately and simultaneously provides real-time superheat/sub cooling calculations. It measures temperature from -40 to 150 °C (-40 to 302 °F), and comes with wireless connection low energy.
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Turnkey Ground Systems
Kratos Defense & Security Solutions, Inc.
Kratos has a long history of turnkey ground system builds that spans more than 300 missions over 30 years. Our on-time and on-budget deliveries are supported by our worldwide team throughout the entire project life-cycle with just one point of contact.
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Clamp type AC Current Sensor／for Load Current Measurements(CT Series)
CT-80
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Big CT window*AC 1A～1800A*Current measurements of main cable
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Femto / Picoammeter and Electrometer / High Resistance Meter
B2980A Series
Both the picoammeters and electrometers provide a world-best performance of 0.01 fA (0.01 x 10-15 A) current measurement resolution. In addition, the electrometers can measure resistance up to 10 P (10 x 1015 ), which is also a best-in-class specification. Finally, since AC power line noise can be difficult to eliminate when making low-level measurements, both the picoammeters and electrometers are available in battery powered versions.
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Non-contact Io/Ior Leakage Clamp Meter
MCL-500IRV
MULTI MEASURING INSTRUMENTS Co., Ltd.
・Safety by non-contact sensor, not touching live part directly (prevention of electric shock, short-circuit, etc.).・Easy to carry and operate, clamp CT + display part integrated type.・Measurable line current + leakage current + resistive leakage current by one unit.・Available direct voltage input at live part as ordinary.・True RMS measurement (I, Io, V).・With filter switch to cut high frequencies.
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DC In AC Clamp Tester
M-800P
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Model 800P is the world’s first clamp meter which can detect smallDC current in AC circuit in addition to general AC/DC current measurement.*By using this clamp meter, DC offset surveillance can be madeeasily in the actual fields like as solar inverters, etc. and it is possibleto check if the DC component in AC circuit is less than 1% ofthe rated AC current or not, according to the regulation.
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IEC60558 Insulation Material Layer Abrasion Resistant Test Device
CX-J16
Shenzhen Chuangxin Instruments Co., Ltd.
This test is conforms to IEC60558-1 Fig6 and IEC60065 Fig14--16.The test shall be performed by fixing the specimens of thin sheets on a mandrel made of nickel plated steel or brass with smooth surface finish.
