From four to three DIN modules: what had to be redesigned for a compact three-phase MID meter
From four to three DIN modules: dimensions, cable layout, terminals, ergonomics. The technical choices behind the new compact generation of the M3PRO line.
Herholdt Controls
Corporate Cybersecurity: what it means to be a NIS2 Important Entity for an electrical equipment manufacturer
ACN classification, NIST framework, SOC and SIEM, Incident Response Plan: the cybersecurity posture of a supplier of strategic electrical equipment.
Cybersecurity for an industrial meter: what changes by December 2027
Cyber Resilience Act, RED 2014/53, IEC 62443: the regulatory framework that will change by December 2027 for those who design and purchase connected meters.
The Firmware Architecture of a Meter: four levels of customization, one word used for all of them
Configuration, mapping, application customization or metrological co-engineering: four levels of firmware intervention in an OEM meter.
DC and Bidirectional Measurement in Energy Meters: where the architecture inherited from AC breaks down
Four quadrants, low-current offset, Eichrecht and timestamping: the meter architecture changes when energy flow changes direction.
Current Sensors in Energy Meters: Shunt, CT, Rogowski, Hall Effect. Why the measurement front end defines the entire design
Shunt, CT, Rogowski coil or Hall effect: current sensor choice defines accuracy, bandwidth and product lifetime in energy meters.
Thermal Management in Energy Meter Design: why your measurement element is also your biggest heat source
In an energy meter, the measurement element is also the main heat source. Learn how shunt TCR drift, terminal hotspots, and three-phase imbalance affect accuracy, certification, and field reliability.
EMC Compliance for Energy Meters: the invisible problem that kills projects
Conducted and radiated emissions, immunity to ESD, EFT and surge, PCB layout strategies, and the added complexity of three-phase systems. EMC engineering for energy meters explained.
Electrical Safety in Energy Meter Design: Creepage, Clearance, and what your Supplier should get right
Isolation distances, fault protection, leakage current, and the IEC 62052-31:2024 update. What electrical safety engineering really requires in single-phase and three-phase energy meter design, and what it means for OEMs.
