CE Marking Requirements for Battery Operated and AC Powered Devices
Adhikari, Nishant (2026)
2026
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202604298369
https://urn.fi/URN:NBN:fi:amk-202604298369
Tiivistelmä
This thesis investigates CE marking compliance pathways for two distinct categories of electrical measurement equipment: a battery-operated handheld Digital Multimeter (DMM), specifically the Mastech MY74, and an AC mains-powered bench-top Digital Storage Oscilloscope (DSO). The study presents a structured comparative analysis of the regulatory frameworks, applicable EU directives, safety standards, risk assessment methodologies, and EMC compliance requirements for both device categories.
The Mastech MY74 operates on a 9V DC battery, placing it below the 75V DC threshold of the it and creating a distinctive compliance challenge: the device is exempt from mandatory LVD requirements yet interfaces with hazardous external voltages up to CAT III 600V. The thesis demonstrates how this safety gap is bridged through the General Product Safety Directive (GPSD) and voluntary application of EN 61010-1, alongside mandatory compliance with the EMC Directive (2014/30/EU) and the RoHS Directive (2011/65/EU) via Module A self-certification.
In contrast, the AC-powered oscilloscope operates at 230V AC, placing it firmly within the scope of the LVD. The comparative analysis highlights how this single difference in power source creates an entirely different compliance pathway, requiring mandatory electrical safety testing (Earth Bond, Hi-Pot) and more rigorous EMC compliance including conducted emissions testing.
The Mastech MY74 operates on a 9V DC battery, placing it below the 75V DC threshold of the it and creating a distinctive compliance challenge: the device is exempt from mandatory LVD requirements yet interfaces with hazardous external voltages up to CAT III 600V. The thesis demonstrates how this safety gap is bridged through the General Product Safety Directive (GPSD) and voluntary application of EN 61010-1, alongside mandatory compliance with the EMC Directive (2014/30/EU) and the RoHS Directive (2011/65/EU) via Module A self-certification.
In contrast, the AC-powered oscilloscope operates at 230V AC, placing it firmly within the scope of the LVD. The comparative analysis highlights how this single difference in power source creates an entirely different compliance pathway, requiring mandatory electrical safety testing (Earth Bond, Hi-Pot) and more rigorous EMC compliance including conducted emissions testing.