ProSight High Grade Digital Only Insulation Resistance Tester Megohmmeter
ProSight High Grade Digital Only Insulation Resistance Tester Megohmmeter CR3460A CR3480A and CR3480B are professional digital insulation resistance testers designed for electrical safety inspections, preventive maintenance, and troubleshooting. They accurately measure insulation resistance using multiple selectable DC test voltages while also providing AC/DC voltage and continuity testing. With high accuracy, automatic discharge protection, and rugged portable construction, they are ideal for industrial, commercial, and utility applications.
What is the Product?
The ProSight High Grade Digital Only Insulation Resistance Tester Megohmmeter CR3460A CR3480A and CR3480B are portable electrical testing instruments used to measure the insulation resistance of electrical systems and equipment. They are designed to assess the condition of insulation in motors, transformers, switchgear, generators, cables, electrical panels, and other energized or de-energized installations.
By identifying insulation deterioration, moisture contamination, leakage current, or damaged insulation, these testers help maintenance professionals detect potential electrical faults before they result in equipment failure, production downtime, or safety hazards.
The CR3460A, CR3480A, and CR3480B models combine insulation resistance testing with AC/DC voltage measurement and continuity testing, making them versatile tools for commissioning, maintenance, troubleshooting, and electrical inspections.
How it Works
The tester applies a controlled DC insulation test voltage to the equipment or circuit under test. It then measures the leakage current flowing through the insulation and calculates the insulation resistance value.
Higher resistance readings indicate healthy insulation, while lower readings may indicate insulation degradation, contamination, moisture ingress, or damage. After testing, the instrument automatically discharges stored voltage to ensure operator safety before disconnecting the test leads.
Why Choose ProSight Digital Insulation Resistance Testers
- Professional-grade insulation resistance measurement
- Multiple selectable insulation test voltages
- High measurement accuracy and stability
- Large easy-to-read LCD display
- AC voltage measurement
- DC voltage measurement
- Continuity testing with audible indication
- Automatic discharge after insulation testing
- Data Hold function
- Auto Power-Off for longer battery life
- Overload and safety protection
- Rugged handheld design for field applications
- Reliable performance in industrial environments
- Suitable for commissioning, troubleshooting, and preventive maintenance
Benefits
- Detects insulation deterioration before equipment failure
- Improves workplace electrical safety
- Minimizes unexpected downtime
- Reduces maintenance and repair costs
- Supports preventive and predictive maintenance programs
- Increases equipment reliability and service life
- Simplifies electrical inspection procedures
- Provides fast and accurate test results
- Easy to operate for both experienced professionals and maintenance personnel
- Portable design for convenient field use