Overview
The AR3126 high voltage insulation resistance meter is a megohmmeter or high resistance meter under the SMART SENSOR brand. It is widely used for the measurement of insulation resistance of generators, motors, power transformers, wiring, appliances and other electrical installations. It is often used in routine maintenance procedures to indicate changes in motor insulation resistance over time, help predict potential failures, and requires periodic calibrations to ensure meter accuracy.
Features
1. Multi-speed output voltage selection: 500V, 1000V, 2500V, 5000V
2. Measurement range: 0.0~ 1000GΩ
3. High Accuracy ： +/- 5% +/- 3dgt
4. AC/DC voltage test function: 30~ 600V
5. Overload protection and withstand voltage design: AC 1200V/10 seconds overload protection, AC 8320V/5 seconds withstand voltage
6. Built-in polarization index and USB transfer function
7. LCD backlight display and high voltage probe
8. Portable Design: DC12V Battery Powered, Net weight 1001g, Backpack Encasement
Principle
The high voltage insulation resistance meter calculates the insulation resistance value by applying a high voltage DC voltage (e.g. 500V to 5000V) to the electrical equipment under test to measure the leakage current flowing through the insulating material. It uses internal circuitry and Sensors to detect resistance changes and displays the results via LCD to evaluate insulation performance.
Applications
Electrical power transmission and distribution equipment testing, cable and generator insulation testing, industrial equipment and machinery insulation testing, laboratory electrical equipment testing, aircraft and spacecraft electrical equipment testing
Steps
1. Connect the tested equipment with the high voltage insulation resistance meter
Select the appropriate output voltage level (e.g. 500V, 1000V, 2500V, or 5000V)
3. Power on and start measurement
4. Read the insulation resistance value displayed by the LCD
5. If necessary, use USB to transfer data or calculate the polarization index
6. Turn off the power and disconnect after the measurement is completed
Notice
• Ensure equipment is properly calibrated before measurement
Avoid operating in humid or hazardous environments
• Pay attention to overload protection limits to prevent voltage overruns
• Use appropriate personal protective equipment
• Regularly check the battery level and instrument status
• Follow the manufacturer's safety guidelines
