April 16, 2025

Modernising metering infrastructure

In today’s world, where data collection and analysis are key drivers of efficiency, many companies face a challenge: how to connect a variety of meters into one unified system. Meters from different manufacturers, generations and technologies often “speak different languages”. How can this problem be solved without replacing all devices entirely? The answer lies in ACRIOS converters.

When meters refuse to cooperate: common challenges in practice

At first glance, integrating meters into a single system might seem straightforward. However, reality is often far more complicated. Many companies operate a mix of measuring devices from different manufacturers, often installed decades apart and with varying technical specifications.

We frequently encounter:

  • Older meters without digital outputs – analogue devices installed decades ago
  • Diverse communication protocols – each manufacturer using its own standards
  • Incompatible physical interfaces – from RS-232 and RS-485, through M-Bus to radio-based meters
  • Inconsistent data formats – making direct integration impossible
  • Isolated systems – meters not originally designed for network integration

The result is a fragmented metering system where data often have to be read manually or are only available within isolated systems, preventing effective analysis and automation.

ACRIOS converters: bridging the old and the new

We provide a solution through converters that enable the retrofitting of existing meters. Retrofitting modernises existing devices without the need for complete replacement, significantly reducing costs and minimising operational downtime.

How do ACRIOS converters work?

Converters act as translators between two worlds: they read signals from the meter (whether digital, radio or pulse output), convert them into a standardised format and securely transmit them to a master system. Thanks to this flexibility, even vastly different devices can be connected into a single functional system with minimal intervention. This approach makes it possible to include older devices that would otherwise be excluded from digitalisation.

Types of converters for various applications

We offer a wide range of converters that enable the connection of virtually any type of meter.

  • Pulse converters – for meters with pulse outputs (e.g., water meters, electricity meters),
  • Protocol converters – for converting between different industrial protocols (Modbus, M-Bus, or wM-Bus).

Retrofitting with ACRIOS: real benefits that make an impact

Economic efficiency

The primary advantage of retrofitting is significant cost savings. There is no need to purchase new meters, reducing capital expenditure. Modernisation can proceed gradually, according to financial capabilities. Furthermore, automation and process optimisation ensure a rapid return on investment.

Technical advantage

Many older meters remain fully functional even after decades of use. Retrofitting allows companies to continue using existing devices while enabling data collection in modern formats. The system is also scalable, making it easy and quick to expand with additional devices.

Minimal operational disruption

The installation of converters is quick, often taking only minutes. There is no need to halt operations or modify infrastructure. The result is unified data management and the ability to use data for automation without unnecessary complications.

Where ACRIOS retrofitting makes a real difference

Water utilities

A water utility company faced challenges with various types of water meters and pressure sensors spread across difficult terrain. Thanks to ACRIOS converters, remote readings were introduced, enabling timely leak detection and distribution optimisation. As a result, water losses were reduced by 30% and manual reading costs were significantly lowered.

Gas distribution

A gas distribution company used converters to unify readings from older mechanical gas meters. By installing pulse converters connected to a wM-Bus network, automated readings were implemented without the need to replace meters. Integration of meters with different protocols into a central energy management system allowed for optimised gas consumption and elimination of unnecessary losses. As a result, technician work efficiency increased by 40%, reading costs decreased by 25%.

Property management

A property management company needed to automate water meter readings across a large portfolio. Converters enabled full automation in compliance with EED regulations, reducing administrative workload by 35% and speeding up energy billing processes by 50%.

District heating

An operator of a district heating network used converters to unify readings from various types of heat meters connected via wired M-Bus. Centralising the data allowed for the optimisation of boiler room operations, leading to 22% energy cost savings within a single heating season.

ESG projects

A sustainability-focused company retrofitted older meters into an ESG reporting system. More precise monitoring of water and energy consumption helped reduce the environmental footprint by 15% and improved the efficiency of internal audits.

How is the converter implementation process structured?

The deployment of ACRIOS converters is straightforward and transparent:

  • Current state analysis – mapping of meter types and interfaces,
  • Solution design – selection of suitable converters for specific applications,
  • Pilot deployment – testing functionality on a selected sample,
  • Gradual expansion – full system rollout,
  • Integration with master systems – linking to ERP, SCADA, MES,
  • Operational optimisation – using data for automation and consumption management.

Simple path to a smart system without unnecessary costs

Retrofitting with ACRIOS converters offers a cost-effective route to digitalising and connecting a wide variety of meters into a unified system. Instead of expensive complete replacement, it allows companies to retain functional infrastructure and simply “teach it to speak a modern language”. Thanks to the wide range of available converters, ACRIOS can find a solution for practically any type of meter, regardless of its age, manufacturer, or communication protocol. The result is a unified data collection system that opens the door to efficient management, process optimisation and significant savings.

FAQs

Meter retrofitting upgrades traditional meters by retrofitting using converters that enable remote communication and sending data to IoT platforms without replacing the meters themselves.

ACRIOS converters support water, gas, electricity and heat meters, as well as industrial devices with analogue, pulse, M‑Bus, wM‑Bus or Modbus outputs.

No. Installation is quick and usually requires no changes to existing infrastructure or downtime.

Yes. Thanks to a wide range of pulse and protocol converters, even decades-old meters can be integrated if they have a basic output signal (such as pulses).

Looking for a practical way to integrate legacy meters into a smart system? Get in touch to see how ACRIOS converters enable reliable data collection from existing meters, helping you reduce deployment costs, streamline operations, and prepare your infrastructure for future requirements.

Blog

Opinions and analysis

External or internal? How custom development works

External development helps organisations accelerate project delivery and reduce fixed costs. This article explores when outsourcing truly makes sense, what to consider when selecting a partner, and how to structure collaboration that delivers lasting internal peace.
Read more
How to?

Proven deployment of 10,000 wM-Bus converters for EED

Digitalisation of metering is becoming a strategic priority for utilities. Experience from a project with 10,000 wM-Bus concentrators and 850,000 meters shows that success depends less on technology itself and more on change management, coordination, and structured planning.
Read more
Technology

Choosing a remote reading system for water utilities

Digitalisation brings many ways to read water meters remotely, from bus networks to direct LoRaWAN and NB-IoT communication. Learn how to choose the right approach for your utility based on existing meters, coverage conditions, and investment strategy.
Read more
Opinions and analysis

Open data interfaces pay off for reporting and integration

An open data interface means freedom and independence when working with data. Beyond storing and visualising, it enables export, reporting, automation and smooth integration with other systems. The result is greater flexibility, lower vendor lock-in and sustainable data management.
Read more
Opinions and analysis

15-minute vs daily meter readings frequency explained

How often should you measure energy and water consumption? Fifteen-minute meter reading frequency supports detailed analysis and real-time optimisation, while daily data extend battery life and simplify reporting. Learn about the benefits, trade-offs, and use cases from practice.
Read more
Technology

Scripting in IoT: Flexibility, sustainability, and protection

Many IoT deployments fail when each new customer request requires a firmware change. Scripting solves that by separating customer logic from core functions, it enables faster updates, long-term maintenance, and secure control over unique features.
Read more
Technology

Gas meter data to dashboard: ACR-EX meets Datacake

Get your gas meter data online in minutes with the ACR-EX datalogger and its direct Datacake integration. This reliable NB-IoT solution provides live readings, alerts, and a ready-to-use dashboard. All without the need to develop or maintain your own backend infrastructure.
Read more
Compliance

EPBD is coming: what BACS means for your building

Let’s break down what the BACS mandate, part of EU’s broader initiative EPDB directive, means in practice. Who must comply, which systems and protocols to use, and how to modernise your building with minimal effort using your existing infrastructure.
Read more
Opinions and analysis

When DTLS makes sense. Know before you deploy

Let’s explore when DTLS (Datagram Transport Layer Security) brings real security value to NB-IoT deployments and when it’s smarter to choose a simpler or more energy-efficient alternative. Get clarity before committing to your next smart metering rollout.
Read more
Opinions and analysis

Not your keys, not your hardware

AES encryption protects your data. But without the keys, you don’t really own the device. This article explains why requesting encryption keys matters when purchasing IoT meters, and how it gives you full control over data, integration, and long-term independence.
Read more
Technology

868 MHz or 433 MHz? The right choice for your wM-Bus

Looking for a wireless M-Bus converter but unsure which frequency band to choose? This article compares 868 MHz and 433 MHz, explains key technical differences, and offers practical guidance based on meter compatibility, signal conditions, and installation environments.
Read more
How to?

Everything you need to know, documented. ACRIOS wiki.

One place to find answers to all your technical questions. The ACRIOS wiki simplifies technical communication by bringing together everything needed for configuration, installation, and integration. Online, accessible, and continuously updated.
Read more
Technology

End-to-end custom hardware and software development

Ready-made products can work. Until they don’t. When specific requirements emerge, a custom development approach offers the flexibility to design both hardware and software precisely for the task. Whether it’s a new solution or an upgrade to existing systems.
Read more
How to?

How to collect energy data to support ISO 50001

Energy efficiency is no longer just a buzzword. With rising energy costs and increasing regulatory pressure, frameworks like ISO 50001 are becoming essential. But to optimise energy use, organisations first need one thing: structured, reliable consumption data.
Read more
How to?

Lowering IoT TCO through smart manufacturing

The price tag is just the beginning. Real savings come from what happens after deployment – device setup, integration, maintenance and optimisation. Manufacturers can make all of this easier and cheaper, without compromising on performance.
Read more
How to?

Reading Sensus meters with zero hardware changes

Unifying meter readings across different protocols doesn’t have to mean replacing hardware or relying on a single vendor. Our solution connects even legacy Sensus meters (now part of the Xylem group) into a unified system – without the need to replace your existing devices.
Read more
Opinions and analysis

Why 15-minute data matters in district heating

15-minute interval readings help clarify heat pricing, detect anomalies and reduce billing complaints. They also support transparent cost allocation, a must as dynamic tariffs and EU rules raise the bar. With our converters, you can enable them without replacing your meters.
Read more
How to?

Give me a tool that works. Not a manual.

In the field, there’s no time for unnecessary clicks or second guesses. When every minute costs money, configuration needs to be fast, reliable, and dead simple. Let's have a look at what really works – and why complexity doesn’t belong at the installation site.
Read more
Compliance

5 most common myths about remote meter reading

From 2027, remote meter reading will be mandatory under the European Efficiency Directive. Yet despite growing availability of the technology, many myths and half-truths still surround its implementation. Let's break down five of the most common misconceptions.
Read more
Opinions and analysis

Battery-powered vs wired: What really costs more?

An externally powered data bus may look cheaper on paper. But once you factor in cabling, electrician work, inspections, and long-term upkeep, the story changes. Let's compare and reveal why battery-powered solutions often save more than just money – time, effort, and peace of mind.
Read more
Compliance

Cyber Resilience Act and IoT hardware

The European Union's Cyber Resilience Act significantly reshapes hardware requirements for IoT devices – promoting secure design, manufacturer transparency, and interoperability that is essential for resilience against cybersecurity threats. Learn more about CRA.
Read more
How to?

Next-gen meter readings, no replacements needed

Discover how to modernise your metering system without the high cost of replacing existing meters. With a smart converter, you can enable seamless remote readings using your current infrastructure. Quick to deploy, easy to manage, and fully compliant with EED requirements.
Read more
How to?

Modernising metering infrastructure

Connecting different types of meters into one efficient system can be a major challenge, when dealing with various manufacturers, generations and technologies. Discover how converters offer a smart, cost-effective way to unify even the most diverse metering infrastructures.
Read more
How to?

M-Bus to IoT integration explained

Connecting M-Bus meters to IoT networks like LoRaWAN or NB-IoT is now a critical step in modern utility infrastructure. Discover four practical methods that enable reliable, scalable, and future-ready integration – without complex custom development or delays.
Read more
Opinions and analysis

Understanding TCO: More than just hardware

When investing in new technology, looking beyond the initial hardware cost is more important than crucial. Discover how understanding and managing the total cost of ownership (TCO) can lead to smarter, more sustainable, and financially efficient technology investments.
Read more
Technology

NB-IoT technology: All you need to know

NB-IoT is a low-power, cost-effective IoT technology that ensures reliable connectivity with excellent coverage and security. Ideal for smart cities, industry, energy, and agriculture, it enables efficient communication for a wide range of devices. Let's discover its key features and benefits.
Read more
Technology

LoRaWAN: All you need to know

LoRaWAN is transforming the IoT with its long-range, low-power wireless communication. Ideal for smart cities, agriculture, and industrial automation, it enables efficient, cost-effective, and secure data transmission. Discover how LoRaWAN works and its key benefits.
Read more
Technology

M-Bus, wM-Bus, and RS-485: A technology guide

As cities and industries embrace digital transformation, reliable data collection and communication are essential. M-Bus, Wireless M-Bus (wM-Bus), and RS-485 technologies play a crucial role in smart metering, industrial automation, and infrastructure monitoring.
Read more
Technology

LoRaWAN vs. NB-IoT: Which technology is right for you?

As industries embrace digital transformation, many are upgrading legacy equipment to keep pace with evolving technology. The integration of smart metering and remote monitoring is turning traditional devices into key players in the rapidly expanding IoT ecosystem.
Read more
Technology

Smart metering: What it is and why it matters

Smart metering transforms energy monitoring by real-time insights into electricity, gas, and water use. By upgrading traditional meters with converters, it enables accurate billing, early issue detection, and improved grid efficiency for both consumers and providers.
Read more
Technology

IoT: Technology that saves time and money

If you have been hearing about IoT lately, you are not alone. IoT, short for the Internet of Things, is transforming the way we live and work – saving time, effort, and sometimes hundreds of euros each year and that is why we are leveraging it here at ACRIOS Systems.
Read more
Company news

ACRIOS Systems unveils its brand-new website.

We are excited to introduce new website. With a fresh design and enhanced features, we have created a more intuitive and enjoyable experience. Seamless navigation, improved functionality, and a modern look that makes finding what you need easier. Welcome to our new digital home.
Read more