DC Resistance Tester
DC resistance tester is a precise measuring instrument used to evaluate the electrical resistance of conductors such as motor windings, busbars, battery modules, and low-ohm connectors. These testers are essential in industries requiring high accuracy, low-resistance verification, such as electric vehicles, transformers, and electrical control systems.
As a professional custom dc resistance tester supplier, SAIMR designs and manufactures testers that meet varied industrial testing requirements, offering both standard models and OEM customization support. SAIMR’s testers ensure repeatability, stable measurements, and easy system integration.
| Model | Voltage Range | Resolution | Channels | Applications | Customizable |
|---|---|---|---|---|---|
| SMR240 | 0.01μΩ ~ 1000MΩ | 0.01μΩ | Single channel | Transformer testing, motor windings, busbar resistance | Yes |
| SMR260 | 0.01mΩ ~ 300kΩ | 0.01mΩ | Up to 48 (6×8CH parallel scan cards) | Mass multi-point testing, cable resistance, connector QC | Yes |
| SMR270 | 0.1μΩ ~ 3.3MΩ | 0.1μΩ | Single channel | On-site battery & wire test, mobile maintenance scenarios | Yes |
| Application | Recommended Model | Why This Model Fits |
|---|---|---|
| EV Battery & Busbar Testing | SMR270 | Portable, μΩ-level resolution, suitable for on-site testing and copper bar quality control |
| Motor Coil / Winding Resistance Check | SMR240 / SMR260 | High accuracy (0.01%), four-wire method, multi-speed testing, applicable to coil integrity verification |
| Transformer, Cable, Connector QC | SMR240 / SMR260 | SMR240 covers ultra-wide resistance; SMR260 enables batch testing with up to 48 channels |
| Mass Production / Automation Integration | SMR260 | 6×8CH expansion, MODBUS protocol, RS232, ideal for automated test systems and MES integration |
| Laboratory / Material Evaluation | SMR240 | 0.01μΩ resolution, multi-range support, temperature compensation, suitable for R&D and materials testing |
Selecting the right model depends on your testing requirements:
SMR240 is ideal if you need ultra-high precision across a wide resistance range, suitable for lab and detailed component testing.
SMR260 fits best for multi-channel production line testing and integration with automated systems using MODBUS or RS232.
SMR270 is recommended for fieldwork, offering portability and fast measurements for battery packs and busbar inspections.
All SAIMR models support customization to adapt to specific interface, channel count, and fixture requirements, ensuring the perfect fit for your application.
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