Overview
The AR4105B Ground Resistance Tester is a professional test equipment from the SMART SENSOR brand for the measurement of ground resistance, low resistance conductor resistance value and ground voltage of various devices. Ground resistance is a key parameter to ensure the safety of electrical equipment and personnel. The instrument calculates the ground resistance value by applying a specific current and measuring the voltage drop of the ground system.
Features
1. Support 2-wire method and 3-wire method Measurement mode
2. Measurement range 0~ 200V, resolution 0.1V
3. Ground resistance Measurement range covers 20Ω, 200Ω, 2000Ω three gears
4. With backlight display function
5. All gears can be continuously measured
6. Fast Response Time, Grounding Resistance about 5 seconds, Grounding Voltage about 2 seconds
7. Perfect overload protection function
8. Portable design, Net weight only 526g
Principle
The grounding resistance tester calculates the value of the grounding resistance according to Ohm's law by applying a specific current to the grounding system and then measuring the voltage drop in the grounding system.
Applications
Power systems, industrial production, construction engineering, telecommunications equipment, railway systems, aerospace
Standards
IEC 61010-1、IEC 61010-2-31、IEC 61557-1,5、IEC 60529(IP54)
Steps
1. Select 2-wire method or 3-wire method Measurement mode
2. Connect the test lead to the device under test
3. Turn on the power and select the corresponding measurement gear
4. Read and record measurement results
5. Power off after measurement
Notice
• Operating Ambient Temperature should be within the range of 0~ 40 ℃, Humidity ≤ 85% RH
• Storage Ambient Temperature should be in the range of -20~ 60 ℃, Humidity ≤ 90% RH
• Note overload protection limitations: ground resistance range 200V AC (10 seconds), ground voltage range 300V AC (30 seconds)
• Check battery level before use
• Ensure that the test leads are firmly connected and reliable
Avoid use in humid or polluted environments
