Hioki has newly launched the next-generation DC resistance meter RM3542C. This instrument is designed specifically for mass production processes of passive components like chip resistors and ferrite beads, enabling high-speed and stable pass/fail judgment.

The RM3542C features an integrated application design tailored for automated mass production, balancing reliability and ease of use. To meet stringent quality inspection requirements, the device is equipped with multiple core functions: firstly, a ΔR function to automatically compare resistance changes between processes; secondly, a BIN judgment function supporting high-speed sorting and grading (product classification). Furthermore, through a newly developed jumper resistance measurement support function, the tact time under typical test conditions is reduced by approximately 76% (3.8 ms → 0.9 ms) compared to previous models. With these functions, users can achieve a leapfrog improvement in inspection throughput while maintaining high reliability and stability testing standards.

The global electronics manufacturing industry continues to accelerate, with output value expected to grow 8% year-on-year in 2025 and the market size projected to exceed 399.09 billion USD¹. Alongside the recovery in demand for smart devices, automotive electronic systems, and industrial equipment, the unification of processing capability and judgment standards in inspection processes is becoming increasingly important².

Meanwhile, manufacturers are aggressively adopting ultra-thin 0201-spec chip resistors and ferrite beads, driving inspection lines to achieve stringent accuracy requirements within extremely short tact times. In multi-factory, multi-process production modes, equipment differences and environmental variations easily cause measurement deviations, leading to fluctuations in judgment results. This is especially true during production start-ups or line changes, where judgment standards are highly prone to discrepancies.

Addressing these industry pain points, the Resistance Meter RM3542C was developed to meet demands. Integrating measurement, judgment, and inter-process variation control functions, it reduces reliance on external computers through built-in high-speed ΔR comparison and auto-grading functions, thereby minimizing communication waiting times (latency/delay). This ensures consistent quality levels with high throughput and stability across all production processes.

Key Features:
1. Jumper resistance measurement support function, shortening tact time
The newly developed Jumper Mode shortens the tact time by approximately 76% (3.8 ms → 0.9 ms) and effectively eliminates the detection bottleneck of jumper resistance, significantly boosting capacity.

2. Built-in BIN (grading) judgment for instant sorting
The RM3542C can directly execute up to seven BIN (grading/sorting) judgments within the instrument, with results output immediately via the I/O interface. By eliminating delays from external computer processing and communication, the system can maintain high-speed and stable operation even on compact, automated production lines.

3. ΔR function to suppress resistance value fluctuations between processes
The ΔR function automatically compares resistance values between different stations or production lines, precisely detecting minute changes caused by rated voltage application. Through dual "Comparator + ΔR" inspection, stricter quality screening is achieved, ensuring the reliability of high-precision chip resistors and bead components.

4. Enhanced reliability and ease of use
Through preset recall (pre-setting registration), station crash prevention, low-load measurement (applied voltage controlled below 5V to reduce impact on measurement objects), and contact detection functions, errors caused by human factors during installation and maintenance are minimized. Optimized measurement conditions and high equipment utilization enable continuous high-reliability testing. Additionally, the RM3542C meets EMC standards for industrial environments, ensuring long-term stable operation on the factory floor.

Main Applications:

• High-speed pass/fail judgment and grading on chip resistor production lines.

• Process inspection and sampling inspection for ferrite beads and inductors.

• Integrated with taping machines (automatic sorting/classification devices) to achieve full-inspection efficiency.