Seika Machinery Introduces New Robotic EMC Noise Scanners for PCB Assembly Analysis

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Seika Machinery, Inc. has added the MORITA TECH WM7000 Series High Performance EMC Noise Scanners to its electronics manufacturing equipment lineup. The WM7000 Series is a robotic EMC noise scanning platform designed to identify where electromagnetic noise is being generated on a product. Using near-field magnetic probe scanning with a laser rangefinder, the system captures and visualizes noise distribution with positional accuracy. The software allows users to run detailed scans and identify problem areas during development and troubleshooting.

The series includes two models — the WM7400 and WM7300 — built to support different application sizes while delivering the same measurement precision and frequency capability.

The WM7400 is designed for A4-size measurement areas for PCB-level analysis and compact assemblies. It supports frequency bands from 150 kHz to 3 GHz as standard, with an optional range up to 8 GHz. With a minimum scanning step of 0.1 mm and positional accuracy of ±0.01 mm (X, Y, Z), it provides repeatable measurements in a footprint suitable for lab environments.

The WM7300 offers an expanded scanning range of up to W420 × D297 × H200 mm for larger samples and longer test objects such as cables. It maintains the same frequency range and measurement accuracy as the WM7400 while accommodating larger boards and assemblies. The WM7300 includes patent-pending features and is designed with CISPR22 compatibility in mind. Custom measurement areas can be developed to meet specific requirements.

Both systems operate on standard 100–240 V AC power and are designed for high-resolution scanning performance. The WM7000 Series enables engineers to identify noise sources before formal compliance testing to reduce redesign cycles.

With the addition of the MORITA TECH WM7000 Series, Seika Machinery expands its EMC solutions portfolio for manufacturers, addressing EMC issues during the design process.

Click here to learn more about the WM7000 Series.