Hioki RM3545A-2 Resistance Meter

Product Highlights

Ideal for advanced research and production facilities, this Hioki RM3545A-02 Resistance Meter delivers precise measurements of resistance and more. With a resistance range of 10 mΩ to 1,000 MΩ, the meter is ideal for testing the winding resistance of motors and transformers, as well as the resistance of signal relays and magnetic parts.

As electric mobility gains popularity, manufacturers are developing components for higher currents and voltages. Since even minuscule amounts of resistance can have a significant impact on energy efficiency and safety, more accurate quality control focusing on resistance is required. The Resistance Meter RM3545A facilitates accurate resistance measurements and is suitable for diverse applications in development and production lines.

Electric resistance is measured by passing a current through a measurement target such as a weld. Pass and fail judgments are generated based on variation in resistance values. A typical low-resistance weld can have resistance ranging from 10 µΩ to 100 µΩ. The Resistance Meter RM3545A provides a 1000 µΩ range and 1 nΩ resolution, allowing it to measure low resistance values with a high degree of precision. If a weld is insufficient, its resistance value will exceed that of a non-defective weld. Pass and fail results are generated for non-defective and defective welds based on minuscule differences in their resistance values. Weld quality can be managed quantitatively for all welds passing through a production line, ensuring traceability.

When measuring low resistance, due to the voltage generated when different metals come into contact with one another (known as electromagnetic force, or EMF), the measurement values can be unstable. The Hioki RM3545A is built in with an Offset Voltage Compensation (OVC) function to correct for the effects of EMF, making the instrument ideal for measuring low resistance of the welding points of busbars.

The resistance values vary with temperature. To ensure consistent testing with a resistance meter, it is necessary to eliminate the effects of temperature. The RM3545A has got you covered.

Features

• This product supports up to two Z3003 multiplexer units. The units are sold separately.
• Ideal for testing winding resistance of motors and transformers, as well as contact resistance of power relays, switches and connectors
• Also measures the resistance of signal relays and magnetic parts
• Great for advanced research and production
• Measures resistance from 10 mΩ to 1,000 MΩ
• Built-in Offset Voltage Compensation (OVC) corrects for the effects of EMF, so you can analyze low resistance of the welding points of busbars
• Delivers results in as little as 2.2 ms
• Offers basic accuracy of 0.006% with a 0.01 µΩ maximum resolution and maximum testing current of 1 A
• Equipped with RS-232C and USB 2.0 interfaces
• Assess multipoint signals with the supported Z3003 multiplexer unit (sold separately), which accommodates 20 channels of 4-terminal measurements