BENETECH GT5105A Professional LCD Digital Resistance Tester Earth Ground Resistance Voltage Tester Megger, GT5105A Earth Ground Resistance Voltage Tester

This instrument is controlled by intelligent microcontroller chip, with high precision and high reliability; It can be used to measure the grounding resistance of various wiring, electrical equipment, lightning protection equipment and other grounding devices, and can also measure the base voltage. (Note: This instrument is not suitable for harsh outdoor environmental conditions, such as rain, lightning, etc.)

Functions
1. Backlight function and battery detection.
2. Data retention.
3. It can be used for precise three-wire measurement or simple two-wire measurement.
4. When measuring ground resistance, if C or E end of the test lead is not in good contact, ---- Ohm warning is displayed on the LCD display.
5. OL stands for range. 6. Double insulation or safety structure with reinforced insulation

1. Measurement method:
- Earth voltage measurement: average response
- Ground resistance measurement: test signal frequency: about 820Hz, current: 20 ohms about 3.2mA
2. Working environment: Temperature: 5 ~ 40 degrees c, relative humidity: less than or equal to 80 ~ rh (no fog) altitude less than or equal to 200 meters
3. Storage conditions: Temperature: -20~60 degrees c; Relative humidity: less than or equal to 70% RH (no fog)
4. Power supply: 9V power supply: 1.5V (No. 5 Alkaline battery) * 6 (battery not included)
5. Overload protection: Ground resistance: 200V AC (10 seconds) Ground voltage: 400V AC (30 seconds)
6. Insulation resistance: The insulation resistance between the measuring circuit and the case is not less than 20MOHM