The MOA-Ⅱ is a precision DC parameter tester for zinc oxide (ZnO) varistors, utilizing high-frequency high-voltage technology to form a closed-loop system for highly accurate constant current and voltage output. It integrates high-voltage generation, control, and measurement modules, enabling fully automated testing with a single button press. The device features a 3½-digit LED display for clear, intuitive readings and includes data memory functionality. With multiple safety protection mechanisms, it ensures reliable, efficient, and safe testing of varistor performance, making it a key tool for quality assurance in the electrical industry.

• Closed-loop system design delivers stable, high-precision constant current and constant voltage outputs.
• One-button automated testing completes all measurements in seconds, eliminating manual intervention.
• Digital measurement system ensures excellent stability and high accuracy for consistent results.
• 3½-digit LED display with memory function provides clear, readable test results and data retention.
• Multiple built-in protection features guarantee safe and reliable operation during high-voltage testing.
• Compact and robust metal casing ensures durability for laboratory and production line environments.

 

• Varistor Voltage (U1mA) Range: 3–10.00kV, Resolution 0.01kV, Accuracy ±(1.0% reading + 2 digits)
• Leakage Current (Id at 0.75U1mA) Range: 0–1000μA, Resolution 1μA, Accuracy ±(1.0% reading + 2 digits)
• Constant Current (Iconst): 1mA, Accuracy ±(2.0% reading + 2 digits)
• Power Supply: AC220V±10%, 50Hz
• Dimensions: 280mm × 320mm × 160mm (L×W×H)
• Net Weight: 5kg
• Gross Weight: 8000g (with packaging)
• Display: 3½-digit LED digital display
• Protection: Multiple safety protections for over-current, over-voltage, and short-circuit events