TECPEL Electricals and Electronics Testing Earth Resistance Testers ERT-580

The instrument used for measuring the resistance of the earth is known as earth tester. All the equipment of the power system is connected to the earth through the earth electrode. The earth protects the equipment and personnel from the fault current. The resistance of the earth is very low. The fault current through the earth electrode passes to the earth. Thus, protects the system from damage.

ERT-580 from Tecpel is a handheld earth resistance tester with 3 earth testing ranges, a large LCD and a data hold function.The ERT-580 is a “Professional Instrument”. The RUGGED and ORING sealed digital is built with all the protection you need for outdoor use. The ERT 580 is suitable for the testing of single earth electrodes such as lightning conductors and other small earthing systems. The resistance of conductors such as continuity and conductor coupling joints can also be measured. Two-terminal operation measurement, which reduces the accuracy, can also be done by shorting P and C terminals.

Earth resistance can be measured directly from 0.01 ohms up to 1999 ohms. The reading is displayed on a large, easy to read digital display. The ERT 580 makes measurements by passing a constant current through the device under test (generally a conductor or low resistance) and measuring the voltage across it. The earth resistance is then calculated by Ohm's Law. It has an advanced circuit design that permits the instrument to operate with the minimum influence from earth voltage and earth resistance of the auxiliary spikes. This superb instrument is powered by 6 x 1.5-volt manganese-alkaline AA batteries. The calibration of the instrument is performed with the included test leads. Therefore, when using the supplied test leads, the accuracy does not suffer from the three-terminal method of measurement for the most common applications.

ERT-580 from Tecpel comes with the following properties:

• Measures down to 0.01 Ohm.
• 3 Earth Ranges: 20, 200, 2000 Ohm.
• One test current of 2mA RMS.
• Indication if the resistance of auxiliary spikes resistance is within range.
• Two or three-terminal measurement.
• Three-terminal measurement for earth electrode testing.
• Large LCD display.
• Data hold function.
• Calibration performed with supplied test leads (3 T fully compensated).
• Measures earth voltage up to 200V AC.
• Simple to use and low power.
• Open-loop indication with "1" (MSD) on display and LED Light off.
• Lightweight, robust and compact design.
• Low Battery Indication.
• "O-Ring" Sealed case for outdoor usage and better protection.
• Standard accessories for 3T and 2T.

ERT-580 High-Performance Review:

• Performance selection at a glance.
• Measures low earth resistance.
• Rejects interferences.
• Measures earth electrodes directly.
• Indicates if resistance of auxiliary spikes within tolerance.
• Over-voltage protection.
• True constant current source.
• Allows 2 or 3-terminal testing (ext. Short).
• Rugged and “O-Ring” sealed case.
• 3-terminal measurement accuracy.
• Industrial grade case.
• Color-coded test leads.
• Meets CE requirements & IEC 1010.
• LED indicator.
• Crowbars.
• Knob selection or ranges.
• Large digital display.
• 6 x AA battery.