Ground Resistance Testers

RT-1000 Measures resistivity RTT, RTV, and RTG 103-1012 ohms/sq., ohms, ohm-cm Relative humidity 10% – 90% RH Temperature 32oF – 100oF Digital display: easy to interpret NIST calibration included Includes chair probe to measure smocks, earth ground, chairs, and resistance probes. Resistivity probe built in the bottom of meter Product conforms to the ESD S.20.20 spec standards CE mark included 1 year warranty Made in the USA > The kit includes, two (5) lb probes, coil cords, hard carrying case, battery, 110v or 220v adaptor, garment clips, chair probe, and ground circuit tester

The Static Solutions Ohm-Stat® RT-2000 is a complete 20/20 ESD Audit Kit that includes the RT-1000 Digital Megohmeter and the FM-1125 Digital Static Locator. The RT-1000 is designed to test all conductive, antistatic and static dissipative surfaces for electrical resistivity/resistance according to EOS/ESD, CECC, ANSI, ASTM and UL test procedures. This dependable, high quality unit also measures relative humidity and temperature, both of which affect electrical properties. Includes meter, foam lined carrying case, two 2.5 5 lb probes, AC adaptor, coil cords, 9V battery, grounding hardware and certificate of calibration. Includes probes to measure chairs, smocks and earth ground (a $300.00 Value) Measurement Ranges: • Resistivity/Resistance: 103-1012 ohms • Relative Humidity: 10% 90 % RH • Temperature: 32° F to 100° F or 0° C to 37° C • Test Voltage Range: 10v/100v • Accuracy /- 5% The FM-1125 ESD Field Meter provides fast and easy precision measurements. The unit is grounded through its conductive case, the need to wear a grounded wrist strap is eliminated. Measurements are dependent on distance to the meter using a unique spacer.

Range: 103– 1012 ohms -100% accuracy Measures resistance/resistivity, RTT, RTG and volume resistance with accessories Automatic zeroing and power shut off CE approved Product conforms to the ESD S.20.20 spec standards Automatic voltage range selector Small, lightweight – 2.6”x 5”x 1.2” (6.5 x 113 x 3cm), 8.4 oz. (233 g) LED display color indicates range Low battery warning light LED display > The RT-500 Resistivity Tester measures surface resistivity using parallel electrodes and concentric rings. Tests resistance to ground (RTG), resistance between two points (RTT) and volume resistance. Ohm-Stat RT-500 tests each sleeve of a garment for continuity in addition to performing dissipative seating tests. The RT-500 can also test shoes, heelgrounders, and wrist straps with optional accessories. Conforms to ANSI/EOS/ESD (S4.1, S7.1, S12.1, S2.1), EN 61340.5.1, ASTM-F150, NFPA 99A, and ASTMD257 standards. The Ohm-Stat RT-500 Megohmmeter is designed to quality inspect incoming materials such as floor finishes, floor mats, table mats, conductive floor tiles, work surfaces, paints, bags, wrist straps, common point ground cords, footwear, packaging materials, clothing, and ESD chairs in static controlled areas.

Multi Range 103 – 1012 ohms -100 percent accuracy LED Readout Easy to comprehend Multi Function Measures RTT, RTG and volume resistance Compliant Meets ANSI / ESD, UL and most ASTM standards Compliant to most Military and all EIA and EN standards Automatic 10 to 100 volts, automatic voltage selector Automatic zeroing Portable Small, light weight 2.6 x 5 x 1.2 inches, 8.4 oz. INCLUDES 2 each 5 pound electrodes and their associated cable AND comes in a hard shell case that provides protection and ease of portability for the equipment. > The Static Solutions RT-501 is the premium version of the RT-500. This package INCLUDES the 2 each Industry Compliant 5 pound (2.5) Specialty Electrodes Required for testing Floors, table Tops, Smocks and more per ANSI/ESD S20.20-2014 and TR-53. The instrument has an Easy to Comprehend LED Display and Includes an NIST Certificate of Calibration and compliance tag. The RT-501 is an advanced version of the RT-500. The Instrument is used to test the electrical resistance values of ESD flooring, matting, chairs, smocks, carts and more. All of these test require a megger capable of ranging from 10 to 100 volts and REQUIRE the use of the 2 each 5 pound electrodes that are included in this kit.These electrodes are required over the parallel bars because they provide a specific weight, density and a diameter that is covered with a conductive material of a specific hardness! The RT-500 displays the resistivity / conductivity in decades using an easy to comprehend LED readout. The parallel bars located on the back of the device are good for spot checking products and may be useful for some items. But, when performing a compliance verification or your ESD matting, flooring, chairs and carts etc. plug the external electrodes into the device and use them as described in ANSI/ESD S20.20-2014s TR-53.

• Earth resistance measurement • Ground resistivity (Wenners method) • High spurious voltage rejection • Spurious voltage measurement • 0.01 Ω resolution • Up to 20 kΩ resistance range • Measure with multiples frequencies (270 Hz, 570 Hz, 870 Hz, 1170 Hz, 1470 Hz) • Built-in memory • USB interface The EM4058 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. It is also suitable for soil resistivity measurements, in order to optimize the earth systems project. It is a fully automatic and easy-to-operate equipment. Before starting each measurement, the equipment will check that conditions are within appropriate limits and will notify the operator in case any abnormality turns up (too high interference voltage, too much resistance in test spikes, very low test current, etc). Then, it will look for the most suitable range and show measurement results in an alphanumeric display. In order to conveniently test the earth system, EM4058 allows to perform measurements using the test current which frequency may be operator-selected (270 Hz, 570Hz, 870Hz, 1170Hz or 1470 Hz). On one hand, the lowest frequency will allow to analyze the earth system behavior related to fault currents of industrial frequency, while on the other hand, the measurement performed with the highest frequency will best show the behavior in connection with electrical currents caused by lightning and will offer a very high immunity related to interference voltages that are usually present in soils, specially near substations. The EM4058 has a Frequency Scan feature that performs an earth resistance measure with all available frequencies automatically and calculates, displays and prints the average result besides the individual result of each frequency. Those results are saved on the internal memory. The instrument has four ranges that are automatically selected, covering measurements from 0.01 Ω up to 20 kΩ, which allows to obtain very accurate measurements for any kind of soils. During ground resistivity measurement, the operator may indicate the distance between spikes in order for the equipment to apply Wenners formula and to show the resistivity value directly. The EM4058 has a built-in memory to store measurements and a built-in printer, besides the USB interface that allows to communicate measured values to a computer or data logger for their later analysis and has a remote interface that allows remote control of it through an Android device. It is a portable, strong and lightweight equipment, suitable to be used out in the field and under severe weather conditions. It is powered by a rechargeable battery and it is supplied with all the necessary accessories for measurements (test spikes, leads, etc) within an auxiliary case that makes it simple to carry.

• 3½ digits display • Earth resistance measurement • Spurious voltage measurement • Resolution: 0.01 Ω • Resistance reading: up to 20 kΩ • Audible signal indicates anomalies in the current circuit The MTD-20KWe digital earth tester allows for the measurement of Earth Resistances and Soil Specific Resistivity, and also the spurious voltages caused by parasitic voltages present in the soil. This equipment is suitable for fast and easy measurement of the grounding resistance in house and industrial buildings, hospital installations, lightning rods, antennas, substations, etc. Soil resistivity measurement allows for soil stratification in order to optimize the most complex grounding systems engineering. Its state-of-the-art system of active and passive filters provides it with high immunity to electric interferences, making it possible to obtain reliable measurements even in the presence of spurious voltages, such as the ones that can be found in some urban areas and near primary substations.

Intended for measurement of earth resistance of electricity pylons Minimizes the influence of adjacent pylons, connected by the guard cable Operation fraquency: 25 kHz Resisteance reading: up to 300 Ω Automatic current injection Built-in memory and printer Rechargeable battery > Testing of the power transmission towers grounding (G) quality poses a serious problem as they are all electrically interconnected by means of Ground Wires which act as lightning rods, protecting the lines from atmospheric discharges. Due to the existence of this connection, any attempt to measure a tower grounding (G) resistance using a conventional earth meter leads to wrong results as what is really being measured is all the shunt towers grounding (G) resistance (or, more precisely, its impedance at low frequency). Trying to disconnect the ground wire from an energized line is a risky operation due to the need for climbing to the tower highest part as well as for the proximity to the high-voltage conductors. To make this kind of test feasible, which is of vital importance to ensure the transmission of the electrical power without interruptions, TENTECH TM25R grounding resistance meter for high frequency has been developed. This is the appropriate tool for a fast, safe and reliable grounding resistance measurement in each tower of a working line transmission, without disconnecting the ground wire. Its operation is based on the use of a high-frequency measurement current (25 kHz), for which ground wire inductive impedance taking into account a typical length span is reasonably high, making it possible to reduce the effect of the adjacent towers under measurement. The equipment only measures the ground resistance of the surveyed tower, including its base. The extensive G systems, such as meshes, buried wires, metal pipes, etc, are measured only considering the closest section to the connection point, so that the measured value represents the performance, against a pulse signal similar to an atmospheric discharge. Thus, values that better represent the system capacity to ground lightning currents than the ones obtained with low frequency conventional equipments, even when disconnecting the ground wire, are obtained. The test is performed by making the known-value current flow through the earth diffusion resistance and an auxiliary electrode, called the current electrode, and by measuring the voltage produced between grounding and another auxiliary electrode, thrust into the ground in the area of the potential created by flowing current (Potential Plateau). The current injected by the earth meter is automatically adjusted to the predetermined value and the equipment and it directly indicates the resistance value on its ohms-grades scale. The TM25R has a Bluetooth interface that allows remote control of it through a tablet with TENTECHs app. With it you can save the photos of the towers and the GPS coordinates of each. It also allows you to record voice comments for each measurement. This equipment is poewred with its universal charger, from a built-in rechargeable battery. It is a strong equipment, easy to carry, resistant to the hard weather and geographical features of the tropical and high-mountain regions, that is why it is described as an excellent product for field works under the most severe environmental conditions.

4.3_ Color Touch Display – Easy To Use Intuitive User Interface 6 Functions Choose From – AC/DC Hipot, IR, Ground Bond, Continuity & Built-in Switching Made in the USA – Designed & Built in San Diego CA Compact, Lightweight, Rugged, Fan Free, Fast (100mS min test time) & Accurate 5KV AC/DC Hipot, 20mA max source current Ground Bond 1-30A RMS (42 A peak), 100µΩ Resolution 100 nano-Amp Leakage Current Resolution Low Cost of Ownership – 2 Year Calibration Interval USB 2.0, Serial/RS232, Digital I/O Interfaces are Standard Continuously Variable Insulation Resistance 20-5000V, 450GΩ Max Multi Mode IR with Steady/Rising Pass Mode Test Memory Stores up to 999 Steps and 60 Test Sequences Internal Self Test Fully Exercises Output and Verifies Current Accuracy Pre-Programmed Daily Verification Test With Optional PVD Test Load 150µS Safety Shutdown Ramped Discharge Capability Selectable ARC Detection 1-20mA Meets UL, CSA, IEC Safety Tester Requirements CE Safety Mark Certified to EN61010 2 Year Parts & Labor Warranty