Hioki RM3545A-1 Resistance Meter

Overview

The Hioki RM3545A-1 is a precision DC resistance meter designed for critical low-resistance measurements in manufacturing and research environments. With 0.006% maximum accuracy and 1 nΩ resolution, it measures from 1000 μΩ to 1000 MΩ and is particularly well-suited for testing weld quality, motor and transformer windings, and electronic components requiring precise resistance validation. The instrument includes advanced features such as Offset Voltage Compensation (OVC) for EMF correction and temperature measurement and correction capabilities.

Key Features

• Maximum accuracy: 0.006% of reading + 0.001% of full scale
• Basic accuracy: 0.045%
• Broad measurement range: 1000 μΩ to 1000 MΩ with 1 nΩ resolution
• Built-in GP-IB interface for system integration
• Offset Voltage Compensation (OVC) function corrects for EMF effects in low-resistance measurement
• Temperature measurement and correction function ensures consistent testing across thermal variations
• Contact-check and comparator functions with user-selectable judgment sound patterns
• High-speed measurement delivers pass/fail decisions in 2.0 ms
• Low-power resistance measurement with open voltage not exceeding 20 mV (per IEC 60512-2)
• High path resistance tolerance for flexible integration into automatic test systems
• Compact design for space-saving installation on production lines
• Free power supply with automatic frequency switching (100-240 V)
• Measurement cables can be extended easily with 1 A measurement current

Applications

• Weld quality control and assurance on production lines
• Motor and transformer winding resistance testing
• Busbar weld point low-resistance measurement
• Power relay and switch contact resistance validation
• Electronic component resistance qualification
• Research and development of precision resistance components