Metravi ERT-1501 Digital Earth Resistance Tester with Kit

A. Product Overview

The Metravi ERT-1501 is a digital earth resistance tester designed for checking the quality and safety of earthing systems. It helps users measure earth resistance and ground resistivity in electrical installations, industrial plants, telecom sites, power systems and traction systems.

It is supplied as a complete testing kit, including test leads, iron rods, battery, hard carrying case and manual. The tester has a large backlit LCD with dual display, data hold, lock facility for continuous hands-free operation, automatic zero adjustment, over range indication and low battery indication.

Key product highlights:

• Digital earth resistance tester with kit
• Earth resistance range: 0 to 10, 100 and 1000 ohm
• 4 terminal testing facility
• Measures earth resistance and ground resistivity
• Can also measure low resistance, AC voltage and DC voltage
• Large backlit LCD with dual display
• Data hold function
• Lock facility for continuous testing
• Automatic zero adjustment
• Low battery indication
• Hard carrying case included
• Suitable replacement for conventional hand generator type earth testers

B. Working Principle

The Metravi ERT-1501 works by injecting a test current into the ground through auxiliary earth spikes and then measuring the voltage drop between the earth electrode and the reference probes. Based on this measured current and voltage, the tester calculates the earth resistance value.

For normal earth resistance testing, the instrument is connected to the earth electrode under test and to the auxiliary rods placed in the soil at a proper distance. The tester then displays the resistance value digitally. For ground resistivity testing, the user can use multiple rods in the soil to evaluate how suitable the ground is for earthing installation.

The digital display makes reading easier compared to older hand generator type testers, and the automatic zero adjustment improves convenience during field testing.

C. Why It Is Used

The Metravi ERT-1501 is used to verify whether an earthing system is safe, effective and within acceptable resistance limits. Proper earthing is important because it helps protect people, electrical equipment and installations from fault current, leakage current, lightning surge and electrical shock hazards.

It is commonly used for:

• Testing earth pits
• Checking earthing quality in electrical panels
• Measuring ground resistance at industrial sites
• Testing grounding systems in telecom towers
• Checking earthing in power distribution systems
• Testing electrical traction earthing installations
• Measuring ground resistivity before new earthing installation
• Preventive maintenance of electrical safety systems
• Troubleshooting high earth resistance problems
• Verifying earthing after installation or repair

This tester is useful because poor earthing can cause equipment failure, nuisance tripping, safety risk and unreliable electrical protection.

D. Suitable Buyers

The Metravi ERT-1501 Digital Earth Resistance Tester with Kit is suitable for:

• Electrical contractors
• Earthing installation contractors
• Electrical maintenance engineers
• Industrial maintenance teams
• Power plant maintenance teams
• Telecom tower maintenance teams
• Electrical safety auditors
• Panel builders
• Facility management companies
• Testing and commissioning engineers
• Government electrical departments
• Railway and electrical traction maintenance teams
• Solar plant installation and maintenance teams
• Factories, plants and infrastructure project teams
• Dealers and resellers of electrical testing instruments

It is especially suitable for buyers who need a portable earth resistance tester with complete accessories for field testing and maintenance work.

FAQ

1. What is the Metravi ERT-1501 used for?
The Metravi ERT-1501 is used for earth resistance testing, ground resistivity testing, low resistance measurement, AC voltage measurement and DC voltage measurement.

2. What is the earth resistance range of Metravi ERT-1501?
The earth resistance range is 0 to 10 ohm, 0 to 100 ohm and 0 to 1000 ohm.

3. Does the Metravi ERT-1501 come with a testing kit?
Yes, it comes with test leads, iron rods, battery, hard carrying case and manual.

4. Is it suitable for earth pit testing?
Yes, it is suitable for testing earth pits and checking grounding resistance in electrical installations.

5. Can Metravi ERT-1501 measure ground resistivity?
Yes, it can be used for ground resistivity testing, which is helpful before designing or installing an earthing system.

6. Does it measure AC voltage and DC voltage?
Yes, the instrument can measure AC voltage and DC voltage along with earth resistance and low resistance.

7. Is it better than a hand generator type earth tester?
The Metravi ERT-1501 is a digital replacement for conventional hand generator type earth testers, offering easier readings, digital display and field-friendly operation.

8. Does the ERT-1501 have data hold?
Yes, it has a data hold function to freeze the displayed reading.

9. Where can the Metravi ERT-1501 be used?
It can be used in power systems, telecom sites, industrial plants, electrical traction systems, commercial buildings and maintenance projects.

10. Who should buy the Metravi ERT-1501?
Electrical contractors, maintenance engineers, testing engineers, safety auditors, telecom teams, power plant teams and earthing contractors should buy this tester for accurate field testing.