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An earth resistance tester, for grounding resistance measurement. It is essential towards the protection and effective operation of electrical systems and for deterring potential electric hazards. An earth resistance tester is used by professionals to confirm that the ground system has been correctly laid and works well. The way it works is by sending a tiny current through the Earth and seeing what the resistance of that current in the ground would be. Users can evaluate the grounding system quality from this resistance measurement and adjust accordingly to get better performance.
An earth resistance tester (also known as a ground resistance tester) is a self-contained, compact, handheld instrument used to perform the measurement of earth or ground resistance and soil resistivity. It comprises a transmitter and receiver that cooperate to transmit current through the earth and measure resistance resulting from the passage of current therethrough. A current is induced into the ground, through a ground stake, by the transmitter and reapplied to the receiver after passing through a second ground stake where it is sensed. The ratio between the current and the voltage enables the device to estimate the resistance of ground. Now from that data, You can't really tell if your grounding system is provideing a good ground or not (Misclich). This information is very valuable in ensuring the grounding plays right avoiding Electrical shock and equipment destruction.
When selecting an earth resistance tester, it is important to take multiple factors into account so you purchase the best equipment for your requirements. A few of the things you need to take into consideration are its measurement range, accuracy, how easy it is to use and how durable the tester is. You'll also need to consider size and weight of the device, along with any other like features. The calibration and maintenance of the tester should also be considered for accurate reliable measurement over time.
1, The main factors to be considered when selecting an earth resistance tester quality mainly: Measurement range (a wide range measuring instrument has a higher ), accuracy (the higher the better) Fast measurement speed simple and clear structure easy to use. Useful options, such as data logging, communications via Bluetooth and auto-ranging make the device more user- friendly and efficient. And durable, water proof and resistance against the tough environment are important factors for ER tester to have long life and high reliability. Last but not least, the question of accessories and software that can enhance the utility and flexibility of the equipment.
For the bulk purchasers that would like to have cheap resistance earth testers can select from Shenzhen HOBOY Instrument Co., Ltd an array of its products with good quality and at an astonishingly affordable price brackets. With an emphasis upon high-grade engineering and international supply line management, HOBOY Instrument Co. delivers a perfect combination of cost-efficiency, quality and performance. Its earth resistance meters are the first choice for use by experienced professionals in many different areas, including building and broadcasting services; the precision of its instruments is simply unmatched. With professional OBM/OEM services, and global distribution network, HOBOY Instrument Co. is supplying Wholesale buyer around the world affordable earth resistance tester.
In order to properly measure ground resistance using an earth resistance tester, all manufacturer recommendations and best practices must be observed. Begin by placing ground stakes in a relatively unobstructed area that you feel yields a good sampling of the soil. Install the stakes at the required distances in the ground and, following the manufacturer's instructions, connect tester. Make sure all connections are tight and not corroded or damaged. Set up the tester and begin with the measurement and writing down your readings. Calculate the data in order to resist the earth, and you will done taking proper steps for safe and efficient grounding system.
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