Zero Resistance Ammeters
measure galvanic current and resistance. Also known as: ZRA
See Also: Ammeters, Nanoammeters, Picoammeters
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Product
Digital Earth Resistance Tester
8020 ER
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Standard Electric Works Co., Ltd
● Capable of measuring earth resistance and earth voltage. ● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● Frequency : 820Hz.● 0Ω adjustment.● Battery operated.● Data hold function.● Low battery indication.● Calibration performed with supplied test leads.● Simplified measurement probe is also provided for two-wire measuring method.
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Product
Low Resistance Ohm Meter
6237 DLRO
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Standard Electric Works Co., Ltd
The 6237 DLRO is a "full feature professional instrument". The RUGGED and "O-RING" SEALED Digital LowResistance Ohm and Contact Meter is specially designed to measure very low resistance accurately and give the result directly on the large and clear LCD. The 6237 DLRO makes measurements by passing a constant current through the device under test (generally a conductor, contact or low resistance) and measuring the voltage across it. The Low Resistance is then calculated by ohm's law. This superb instrument is powered by rechargeable battery. It is supplied complete with instruction manual. This ensure that every product is not just fully functional and calibrated after the assembly lines, but also within tight specifications tolerances before leaving the strict quality control of Standard Electric Works.
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Product
Earth Resistance Tester
M71
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M71 has been developed to measure earth resistance with 2 wires and 3 wires by voltammetric method in compliance with standard IEC/EN61557-1.
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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
5kV Insulation Resistance Tester
KV3122
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KV Hipot Power Test Equipment Co.,Ltd
KV3122 Insulation Resistance Tester is suitable for measuring the resistance of various insulating materials and the insulation resistance of transformers, motors, cables and electrical equipment. Digital insulation resistance meter is composed of medium and large scale integrated circuits, including high-precision micro current measurement system, digital boost system and automatic discharge circuit.
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Product
Winding Resistance Meter 50Amps, 2 Channels Rack
WR50-12R
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Raytech Digital Winding Resistance meter WR50-12R is the enhanced version winding resistance system with a most advanced demagnetizing circuit as a rack version. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Product
Oil Resistivity & Tan Delta Test Set-Up
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This testing set is an automated instrument, widely used for measuring electrical characteristics of insulating liquids, transformer oil and other insulating material samples.
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Product
AC Load Bank (Resistive & Inductive)
K-1000 Resistive & Inductive
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Kongter Test & Measurement Co., Limited
Kongter resistive & inductive AC load banks are used to simulate the motor loads or other electromagnetic devices working at their rated power factor. Many backup generators and turbines are rated at 0.7, 0.8 or 0.85 power factor and need to be commissioned at nameplate capacity using a combination of resistive and reactive load to fully qualify their operating capability. Using a resistive & reactive load bank enables comprehensive testing from a single unit.
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Product
Non-contact Ultra-High Range Sheet Resistance Measurement System
CRN-100
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*Ultra-High range sheet resistance measurement for 10E+9 ~ 10E+15 ohm/sq without contacting*Mapping program software;*1. Arranged in a multipoint pattern measurement is programmed*2. 2-D & 3-D mapping software*Easy operation by Windows 7 system software*Measurement data base link with Excel via CSV format file*Unaffected by contact resistance
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Product
High Resistance Neutral Grounding Devices
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HRG systems limit the fault current by placing high resistance between neutral point of transformer (or generator) and ground. As it is not possible to locate the fault point in delta connected systems, an artificial neutral point is created and delta connected system can be grounded. This allows a fault current of a few amperes thus locating the fault point gets easy. When the neutral point is grounded thru high resistance, both continuity of operation is provided during fault condition and sufficient current (typically between 2 A and 10 A) flow is provided for ease of locating the fault point.
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Product
PCB Track Resistance Calculator
TRC100
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The TRC100 is a handy free utility which lets you enter track shape and length, along with material type, the TRC100 will give you an answer in Ohms for the trace you describe. TRC100 is useful if you are working on fine geometries, and need to take care about series loss. You may also find TRC100 useful in power supply applications.
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Product
Insulation Resistance Tester For PV (4 Range)
MIS-PV2
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MULTI MEASURING INSTRUMENTS Co., Ltd.
The model MIS-PV2 is an insulation resistance tester for the exclusive use in photovoltaic systems. The ordinary insulation resistance testers cannot make measurement properly during generation of PV systems. This instrument, however, can measure the insulation resistance simply by touching probe to the live line whether making generation or not. There are two ranges of PVH and PVL. PVH is for high voltage generation system (more than 500V and less than 1000V) and PVL is for the system less than 500V.
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Product
Resistance, Ground Testing, Battery And Power Quality
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Our testing equipment works wherever you are, whenever you need it, with precision and reliability.
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Product
XR Resistive Reactive Load Banks
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Mosebach Manufacturing Company
Mosebach’s XR series load bank offers you a range of options for resistive reactive loads in both lower voltages of 480 and 600 or MV at 4160 and higher. Outdoor rated user friendly for years of use.
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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
Accessories for Earth Resistivity (VES)
Electrodes
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Earth resistivity / Accessories for earth resistivity (VES)
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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
Zero Speed Sensors
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SPECTEC Innovative Sensor Solutions
The Hall effect technology fulfills a wide array of applications due to the Hall effect sensor's ability to detect zero speed and direction change and produce a digital output that is read by computers, motion control devices, position monitors and digital to analog converters.
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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
Earth Resistance Meter
EM 4058
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earth tester is a digital, microprocessor controlled instrument that allows to measure the earth resistance and ground resistivity (using Wenner´s method), as well as to detect parasitic voltages present in the ground. This instrument is suitable to measure earth systems in power substations, industries, distribution networks, etc., according to IEC 61557-5.
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Product
Contact Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
The loop resistance tester is used to test the conductive loop resistance of various switchgear, and the test current shall not be less than 100A. Due to the oxidation of the contact surface, poor contact tightening and other reasons, the contact resistance increases. When a large current flows, the temperature of the contact point increases, which further accelerates the oxidation of the contact surface and further increases the contact resistance.
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Product
Contact Resistance Meter
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The Motwane Manufacturing Company
High contact resistance values are a definite cause of the failure or less than optimal performance in a wide variety of electrical devices. Contact resistance testing is therefore most critical to measure the resistance of electrical connections in switching devices, circuit breakers, isolators, busbars, relays, joints, connectors, cables, and cable joints. The device helps to find destructive or corroded contacts and hence protects substation devices from damage.
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Product
Linear Polarization Resistance Probes
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Linear polarization resistance (rosion probes are commonly used in the water treating industry and other environments where instantaneous, on-line corrosion rate readings are required. Linear polarization probes are ideally suited to monitor fluctuations that may occur within a system; for example, these probes can be used to monitor corrosion inhibitor effects on a regular basis.
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Product
Transformer Winding Resistance Meter
10A
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*10A DC continuous current in 4 ranges of 0.01A, 0.1A, 1A and 10A.*4 ½ digit display for higher resolution.*Dual channel measurement.*Suitable for operation in energized switchyard conditions.*Specialized protection circuits for suppression of inductive voltage kickback.*SMPS based - lightweight and portable.
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Product
Millimeter Wave Zero Bias GaAs Schottky Diode
HSCH-9162
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The HSCH-9162 is suitable for medium-low barrier, zero bias detector applications. The HSCH-9162 is functional through W-band (110 GHz) and can be mounted in microstrip, finline, and coplanar circuits.
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Product
Resistance Welding
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Resistance welding is a method in which the welding works are heated by resistance heat generated by sandwiching the welding workpieces with welding electrodes, passing current through them, and the metal is welded while pressurizing the works.A resistance welding machine composed of welding power supply, a weld head and an electrode. The welding power supply controls a welding current,the weld head exerts a pressure on the material to weld and the electrode provides welding current and pressurization force to the part under welding. We have been providing various kinds of welding power supplies and welding heads to meet these requirements.
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Product
Handheld Digital Multimeter, 4 digit, Water and Dust Resistant
U1271A
Digital Multimeter
Feature sets that meet traditional industrial requirements and improve productivity and safety Improved accuracy and resolution to meet traditional industrial requirements (30,000 counts resolution with 0.7% for ACV accuracy)Intelligent features to improve productivity and safety (selectable Low Pass Filter LPF and quick signal type identification Qik-V)Better grip Both visual and audible continuity indication in noisy environments Easy access to fuse for simplified maintenance Easy connectivity to PC and internal memory (up to 200) for data logging Large rotary switch and buttons that are easy to operate Dust and water resistant casing (IP 54 compliant)Compatible with U1177A/U1117A IR-Bluetooth adapter for remote monitoring & datalogging Altitude: 3000 meters
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Product
Resistive & Capacitive, Inductive AC Load Bank
RLC
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Inductive & capacitive load banks are reactive only and must be used in combination with a resistive load bank to provide the desired load profile to test a power system. Reactive loads banks can provide either a leading power factor (Capacitive) or lagging power factor (Inductive).
