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Ground Resistance
Evaluation of the conductance of earth grounding.
See Also: Ground Resistance Clamps, Ground Resistance Testers, Surface Resistivity
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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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Voltage Probe
KHZ43201
Beijing KeHuan Century EMC Technology Co,.LTD
The KHZ43201 voltage probe is a standard low resistance test probe, which meets the technical requirements for this product in the CISPR16-1 and CISPR14-1 test equipment. When measuring the interference voltage of the power grid, the artificial power supply network cannot be used at the load port, and sometimes it is necessary to use a voltage probe to measure the interference of the signal port, the load port, and the antenna port. The input impedance of the voltage probe to the ground wire is greater than 1.5KΩ, which can protect the input terminal of the receiver.
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Miller 400A
44500
Rugged, lightweight case - safe to use on wet ground. Weatherproof, even with lid removed - IP67 rating for dust and water intrusion. Convenient case lid removal for ease of movement, with test leads attached, to new measurement locations. Resistance measurement range from 0.01Ω to 1.1MΩ . Resistance measurements are unaffected by any stray interference signals that may be present in the earth during readings, due to the use of narrow band-pass filters centered at 97Hz (the unit’s operating frequency). Runs on a set of C-cell alkaline batteries...no need to periodically recharge the unit or to plug it into a power source
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UNI-T Series
Weshine Electric Manufacturing Co., Ltd
mainly used to measure the wire resistance of cables, the contact resistance ofswitches, connectors, relays, the resistance of coils, motors, transformer windings, and equipment enclosures, lightning protection belts, ground beams, structures, cabinets, steel bars, Test the connection resistance between metal components of water pipes, windows, guardrails, radiators, assembly lines, etc. It is widely used in telecommunications, electric power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods, etc.
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Surface Resistance Meter Kit - Test Anti-Static, Static Dissipative and Conductive Surfaces
PRS-812RM
- Surface Resistance Tester from 0.10 Ω to 1 Teraohm- Constant Voltages 10 volts and 100 volts- Automatic Electrification Period- Determines if a surface is Dissipative, Conductive, or Insulative- Measures resistance point-to-point(Rtt) and resistance to ground (Rtg)- Measures resistance of ESD Flooring, ESD Worksurfaces and Packaging- Conforms to all ESD Association Standards for Resistive Characterization- Includes 2 each Surface Resistance Probes- Packaged in a hard shell Carrying Case- Certificate of Calibration Traceable to NIST included- 2-year Limited Warranty on Main Instrument
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Earth Resistance Tester
G-TEST
To check the condition of a grounding connection, an earthresistance tester is used to measure the residual ground voltage,resistance and resistivity (Wenner method).
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Insulation Resistance Tester
HT2672 / 762
Wuhan Huatian Electric Power Automation Co., Ltd.
Mainly used to check the insulation resistance of electrical equipment or electrical lines to ground and phase to ensure the normal operation of these equipment.
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Service Ground Test Set
900
TESCO’s Service Ground Test Set has been designed to check the condition of the ground connection on a secondary service. If for any reason the ground connection has a resistance, this can be immediately detected by the Test Set. The Service Ground Test Set consists of a voltmeter which can be shunted by a resistance of 60 ohms. The voltmeter is of the suppressed zero type with a double range, from 65 to 130 or from 130 to 260, and can be used for checking service voltage independently of the ground test.
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Ohm-Stat Digital Display Megohmmeter
Measures resistivity RTT, RTV, and RTG 103-1012 ohms/sq., ohms, ohm-cmRelative humidity 10% 90% RHTemperature 32oF 100oFDigital display: easy to interpretNIST calibration includedIncludes chair probe to measure smocks, earth ground, chairs, and resistance probes: $400 value for freeResistivity probe built in the bottom of meterProduct conforms to the ESD S.20.20 spec standardsCE mark includedThe kit includes, two (5) lb probes, coil cords, hard carrying case, battery, 110v or 220v adaptor, garment clips, chair probe, and ground circuit tester
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Ground Resistance
Provide accurate and reliable measurements of both ground resistance and soil resistivity for installation and troubleshooting.
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Test Kit
METRISO 3000
Wolfgang Warmbier GmbH & Co. KG
Suitable for resistance point-to-point and resistance to ground measurementsIntegrated data logger with USB communication port for data transmission (50.000 test values). The supplied Report Generating Software ETC allows to generate a complete test reportHumidity and temperature sensorA barcode scanner can be used in order to record measurement points before testing
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Resistance Grounded Systems (HRG/LRG)
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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Cable & Insulation Testers
A cable insulation resistance test is a test that is performed by applying 500 V or more between the conductor and ground and measuring the resulting leakage current. An insulation resistance tester is a test instrument that measures current that leaks through the insulation into ground. Insulation resistance tests can be performed with insulation multi- meters (IMMs) or megohmmeters. Insulation resistance testers are calibrated to display megohms (MΩ) of resistance. A satisfactory insulation resistance measurement should be in millions of ohms.
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Ground Strap Testers
This precision Ground Strap Tester automatically measures the resistance of ground straps and clearly indicates whether or not the resistance is within the specified limits. Performs precision ground-strap resistance measurements, automatic upper/lower resistance tests. Ideal for both wrist straps and heel straps.
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NI-9226, 8-Channel, 400 S/s Aggregate, 0 Ω to 4000 Ω, PT1000 RTD C Series Temperature Input Module
783864-01
8-Channel, 400 S/s Aggregate, 0 Ω to 4000 Ω, PT1000 RTD C Series Temperature Input Module - The NI‑9226 is a resistance temperature detector (RTD) input module. You can configure the NI‑9226 for two sample rate modes: high sample rate or high resolution. The NI‑9226 is compatible with 3‑ and 4‑wire RTD measurements, and it automatically detects the type of RTD (3‑ or 4‑wire) connected to the channel and configures each channel for the appropriate mode. The module provides per-channel current excitation. The NI‑9226 features calibration and includes a channel‑to‑earth ground double isolation barrier for safety, noise immunity, and a high common-mode voltage range.
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Ground Resistance Clamp Meter
61-920
*Auto ranging*Auto power off*Hard case included*2-year warranty
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Resistance Tester
METRISO® 3000
Wolfgang Warmbier GmbH & Co. KG
Suitable for resistance point-to-point and resistance to ground measurementsIntegrated data logger with USB communication port for data transmission (50.000 test values). The supplied Report Generating Software ETC allows to generate a complete test reportA barcode scanner can be used in order to record measurement points before testing
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Earth Resistance Tester
2678
Shenzhen Chuangxin Instruments Co., Ltd.
RK2678 series Earth Resistance Tester is used to measure the grounding resistance of the electrical equipments’ internal. It’s suitable for measuring the ground wire resistance of the various motors, electrical appliances, instruments and meters, household appliances and other equipment enclosure etc.
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Ground Resistance Testers
IP67 protected top in the industry Test all ground types from Class A to Class D with a single meter Wide 0 to 2000 measurement range Minimize cabling time with innovative earthing rods and cable winder
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Ground Fault Protection Monitors
The Earth Fault Resistance Monitor (EFREM) and the Rotor Health Monitor (RHM) provide wireless rotor ground fault and temperature monitoring for generators and motors. The systems replace older slip ring contact ground fault detectors on any synchronous generator or motor.
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USB Oscilloscope
Handyscope HS6 DIFF
This powerful USB 3.0 super speed oscilloscope combines fast sampling up to 1 GS/s with high resolutions of 12, 14 and 16 bit and a large memory of 64 MSamples on all four channels. The oscilloscope supports continuous streaming measurements up to 200 MS/s and can be synchronized with other oscilloscopes using the CMI interface to form a multi channel combined instrument with synchronized timebase. The CMI interface is available by default on the Handyscope HS6 DIFF. Optionally, the Handyscope HS6 DIFF can be delivered with SureConnect connection test and resistance measurement on each channel. Also, the Handyscope HS6 DIFF can be delivered with SafeGround option. With SafeGround you can switch the differential inputs of the Handyscope HS6 DIFF into single ended inputs with ground protection. It allows to make measurements using standard attenuating probes and protects the scope when a short circuit to ground is created.
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POWER PROBE MAESTRO
PPTM01AS
*Connects with the new Power Probe Tek application for greater diagnostic functionality*The Maestro and Power Probe Tek App will be compatible to connect with a majority of diagnostic scan tools*Trace mode offers scope-like functionality*Stream and record visual traces of electrical issues found when diagnosing*DC voltmeter with the capability of applying battery supplied voltage or ground*AC voltmeter: TRMS, peak-to-peak/min/max, frequency, duty cycle*Resistance testing with a live or unloaded circuit*Fuel-injector test mode*Driver test for testing module drivers
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Drop Test Machine
Single-wing Drop Test Machine Simulate the drop conditions of packaged products when different faces, edges and corners fall to the ground from different heights, thus to understand the damage of the product and evaluate the drop height and impact resistance that the packaging materials can endure while falling down, so as to improve and optimize package design according to actual conditions of the product and national standard range.
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Solar Power Plant Inspection Service
We provide various performance/safety tests including insulation resistance measurement, ground resistance measurement as well as string I-V inspection, EL inspection, and IR inspection using thermography. We provide services of pre-operation voluntary test and pre-operation self check, mandated by revision of FIT scheme in 2017 for solar plants of 500kW – 2,000kW.
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POWER PROBE 4
PP401
*Electronic circuit and component tester that supplies battery ground and power along with 8 diagnostic testing modes to provide automotive technicians with detailed information on the circuits and signals being tested*Diagnostic Modes include: AC/DC Voltmeter, Ohmmeter, Frequency, Pulse width (Positive and Negative) Fuel Injector Tester, PCM/ECM Driver Tester and PPECT3000 Signal tracer*Tests for AC/DC voltage in 100ms and 50s resolutions, AC volts RMS and volts peak-to-peak, measure resistance, frequency and pulse width (negative and positive)
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Wristat Tester
WT25
The WT25 WRISTAT Tester is designed to test the integrity of our WRISTAT in a fast, efficient and simple manner. All of the elements of the WRISTAT - continuity of the strap, integrity of the protective resistor, and satisfactory strap to skin contact are easily confirmed by pressing the top cover of the WT25. The operator (wearer) is tested for a resistance to ground of greater than 750K ohms and less than 10M (switchable to 100M ohms).
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Multiplexer
SC6540
Our patented SC6540 modular scanning matrix pioneered the largest productivity improvement in the electrical safety compliance industry in years. With up to 16 independent high voltage or high current channels in a convenient 2U design, the SC6540 can be customized in 10 different configurations for multi-point Hipot, Ground Bond, Insulation Resistance and Leakage Current testing.
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PE/ Ground, Insulation Resistance Tester
Handheld
The safety testers of the Handheld class are used to measure PE/ Ground resistances, insulation resistances and to perform a simple functional test. The small and sturdy universal testers are intended for standard-compliant safety tests in workshops and production as well as for mobile operation during repair, installation, service and more.
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Easy Pole Clamp-On Ground Resistance Tester w/ Super Slim Jaw
FT6380
The FT6380 measures grounding resistance simply by clamping to multiple-grounded ground wires. No auxiliary grounding rod is needed, and there is no need to disconnect the ground wire from the grounding rod. The compact, low-profile sensor can be used to clamp ground wires with ease, and also provide AC current measurement functionality and can measure currents ranging from leakage current on the order of several mA to load currents of up to 60 A.
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Power Quality, Ground Resistance & Insulation Testers
Improving energy efficiency, reducing downtime, and prolonging the life of your equipment are some of the ways you can save money with Amprobe tools.
