Insulation Tester
Measures insulation resistance to ensure electrical safety and compliance. It detects leakage current and calculates insulation integrity, preventing electric shock and equipment failures.
Working Principle: Applies a high DC voltage to the insulation and measures leakage current to calculate insulation resistance (IR).
| Model | Test Parameter | Measuring/Output Voltage Range | Accuracy | Interfaces | Dimensions (LWH) mm | ||
|---|---|---|---|---|---|---|---|
| SMR650 | Insulation Resistance | 25V – 1000V | ±2%rdg ±5dgt | External I/O, Analog out, LAN, RS232 | 325 x 215 x 96 | ||
| SMR635 | Insulation Resistance (Optional: Surface/Volume Resistivity) | 1V – 1000V (SMR635) / 1V – 1500V (SMR635A) | 1% (10MΩ-1GΩ), up to 20% (>1TΩ) | RS232C, Handler | 331 x 329 x 80 |
Ensures Electrical Safety
Accurately detects insulation faults to prevent short circuits, leakage, and electrical hazards.
Improves Equipment Reliability
Identifies insulation issues early, reducing downtime and extending equipment life.
Compliance with Standards
Meets industry safety and testing standards like IEC 61010 and GB/T 16927 for quality assurance.
Wide Industry Applications
Used in power, electronics, automotive, HVAC, and industrial sectors for various insulation tests.
Easy to Use with Accurate Results
Features clear displays, data storage, and automated testing for efficient and precise measurements.
Portable and Versatile
Available in handheld and bench-top models with multiple test voltages and functions.
Built-in Safety Protections
Includes overvoltage protection, arc detection, and test lockout to ensure safe operation.
| Criteria | SMR650 | SMR635 / SMR635A |
|---|---|---|
| Test Parameter | Insulation Resistance | Insulation Resistance + Optional Surface/Volume Resistivity |
| Voltage Range | 25V – 1000V | 1V – 1000V (SMR635), 1V – 1500V (SMR635A) |
| Accuracy | ±2% rdg ±5 digits | 1% – 20% depending on range |
| Ideal For | Field and industrial testing | Lab and high-precision testing |
| Portability | High | Moderate |
Electrical equipment insulation testing
Industrial maintenance and troubleshooting
Power distribution system inspection
Field and factory acceptance testing
Situations requiring quick and reliable insulation resistance checks with data logging
Precision insulation resistance measurement in R&D labs
High-resistance material testing (surface and volume resistivity)
Quality control in manufacturing of electronic components
Applications needing programmable voltage control and high accuracy over wide resistance ranges
Automated testing environments with handler integration
| Problem | Description | Solution via Insulation Resistance Tester |
|---|---|---|
| Insulation Aging | Caused by heat, humidity, chemical exposure | Early detection through trend monitoring of IR values |
| Moisture Ingress | Water ingress reduces insulation effectiveness | Confirm insulation integrity before power restoration |
| Dielectric Breakdown | High voltage stress damages insulation | Periodic withstand voltage tests identify weak points |
| Manufacturing Defects | Insulation flaws in cables, motors | QC testing to ensure quality before shipment |
| Overload Damage | Thermal stress impacts insulation | Post-fault inspection to prevent unexpected failures |
| In-service Deterioration | Gradual insulation degradation over years | Maintenance scheduling based on IR value trends |
| Customization Option | Description |
|---|---|
| Output Voltage Range | Custom voltage outputs |
| User Interface | Multiple language support (English, Chinese, Spanish，etc) |
| Communication Protocols | RS485, MODBUS, CAN bus, PLC relay controls |
| Integration Support | Designed for automated lines and bench setups |
| Housing & Design | Customized form factor and mounting options |
| Branding | OEM/ODM labeling and logos |
| Test Report Output | Optional USB export, built-in printers |
| Safety Features | Adjustable arc detection, operator lockouts |
Saimr’s engineering team offers dedicated technical support to tailor solutions and streamline your testing workflows.
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