Pulse Input S0 to NB‑IoT with ATEX
Our ACR-EX pulse input to the NB-IoT converter with the ATEX certification option is designed for efficient readings of gas meters with a pulse output. It enables the integration of gas meters – typically for the medium consumption – into the NB-IoT wireless network. The device is synchronised with the network time and reads precisely at hourly intervals with the detection of minimum and maximum flow.
Thanks to the option of local configuration via an optical head using the IEC 62056-21 protocol or the remote configuration over the network, it significantly reduces the total cost of ownership (TCO) in projects requiring frequent remote gas meter readings.
How does it work?
Choose ACRIOS Systems converters. Here’s why
We have a full control over each part of the code in our devices. The hardware we produce can be maintained even many years after installation.
Our converters are manufactured in the Czech Republic with Czech subcontractors. Each unit undergoes final testing while focusing on the functionality of individual communication interfaces and device power consumption.
We pay close attention to the TCO - from using a coulomb counter to obtain an accurate battery life to the pre-configured units delivery with your settings.
Local configuration via the IEC interface with the option of remote configuration or FUOTA over the NB-IoT network.
We prioritize privacy and data security—use your own SIM cards and keep sensitive data to yourself. Our part of the puzzle is the hardware and we’re happy to assist with everything else.
Good technical documentation is the foundation of quick integration. On our Wiki, you'll find integration manuals, communication protocol descriptions and videos explaining the usage.
The ATEX certification allows the connection of gas meters even in the EX zone 2. What a necessity for the gas industry.
Technical specifications
- 24 readings in 24 hours with a transmission period once a day or customizable settings
- Storage of historical readings for 40 days with the ability for local or remote retrieval
- Detection of minimum and maximum flow rates
- Coulomb counter for an accurate measurement of consumption and information on remaining battery life
- User-replaceable battery
- NB-IoT (Narrow Band IoT) communication with the ability to use any NB-IoT SIM card
- Default plug & play configuration
- User-adjustable gas meter ID with the display visibility
- Remote configuration and firmware updates via the NB-IoT network
- Support for the LWM2M connector
- Dimensions: 145 x 65 x 40 mm
- Weight: 226g with battery
- IP Rating: IP67
- Transmitter Power Supply: C-Cell battery 8500 mAh
- Input Parameters: Minimum pulse length: 50 ms, Maximum input voltage: 24V, Maximum sampling frequency: 20Hz, Open contact resistance: >200MOhm, Closed contact resistance: < 100kOhm, ESD: 16kV
- Maximum Number of Devices:1
- Features: S0 readings on the LCD display, network time synchronization, pulse counter setting, historic values, detection of min and max flow, hourly values for past 40 days, network failure recovery mechanism
- NB-IoT: 3GPP rel. v.14
- Configuration Interface: IEC 62056-21 via optical head
- Honeywell BK-Gxx
- Elster BK-Gxx
- Intergaz BK-Gxx
- Intergaz BK-Gxx
- Itron RF1
- Apator UG
- Metrix UG
- Zenner G6
- Actaris/Schlumberger G10
- Diehl G10
- Itron G10
- Itron Gallus 2000 G4
- Landis+Gyr G6
- Sensus (Rockwell) G10
- ACR-EX-100NILCD-I1-C / S0 input to NB-IoT battery powered
- ACR-EX-100NILCD-I1-C ATEX* / S0 input to NB-IoT battery powered with ATEX
*Under MOQ
- 1x S0 input to NB-IoT battery powered
- 1x Installation manual
- 1x Battery
From common issues to proven solutions
Today, most gas meters are already equipped with the communication module, so retrofitting them doesn't make sense. However, an exception may be gas meters for the so-called medium consumption, where equipping them with an external radio module is a more of an economical choice. With this technology, you have probably encountered the following situations as well.
Operation in gas environments requires ATEX certification.
Without valid ATEX approval, devices cannot be legally or safely deployed in explosion-risk zones.
We provide an NB-IoT pulse input converter with full ATEX certification for gas applications.
It is ready for immediate deployment without additional approval steps.
Need to verify the reading directly on site.
The technician must quickly check that the pulses being read match the actual meter state, ideally without a laptop or service software.
The device includes an integrated display showing the meter ID, timestamp, and current reading.
This allows instant comparison with the meter’s counter and the ability to align the counter value within the converter so that the reported data exactly match the physical reading.
Precise hourly readings and extended telemetry are required.
In the gas sector, the counter value must be transmitted exactly on the hour and often include minimum and maximum flow values.
Our converter supports time synchronisation and precise scheduling.
It sends the counter value exactly to the second at each full hour and includes the minimum and maximum flow values for the period.
The device must operate for at least 10 years and allow remote servicing.
Replacing equipment in ATEX environments is complex and costly, so long lifetime and remote serviceability are essential.
The module provides more than 10 years of battery life, OTA firmware updates via NB-IoT, and remote configuration.
It stores up to 40 days of measurement history accessible both over the network and locally through an optical head.
Integration into the customer’s own ecosystem without vendor lock-in.
Customers want full control over data and configuration, without mandatory middleware or closed dashboards.
We supply standalone hardware with full documentation and an IEC-based configuration interface.
We can pre-install your SIM card during manufacturing, and you operate the device fully under your own tools.
Selected projects
We offer the ACRIOS remote reading solutions to all of our customers who want to comply with the EED decree. The solution is quick to install, requires no training and proves to be stable over time.
ACRIOS’ reliable products for remote readings and innovative, fully customizable solutions perfectly complement our expertise in value-added distribution of IoT products and solutions. We are proud to collaborate with a company that shares our commitment to excellence and customer satisfaction.
"The remote gas meter reading devices from ACRIOS have proven their reliability and quality of workmanship. We appreciate that all our technical requirements were met and that we received all the necessary documentation and technical support for integration into our information system. We are very satisfied with the cooperation..“
ACRIOS was instrumental in our success on a large-scale European deployment of the wM-Bus concentrators, helped to solve all of the technical challenges and deliver results within the set deadlines.
“The ACRIOS scripting capabilities have provided Netmore with the required solution for solving integrations with MBUS/MODBUS units.”
We successfully integrated the ACRIOS Data Concentrator into our smart metering project, seamlessly connecting hundreds of meters. The device’s performance and stability have been outstanding, even in challenging environments. The LoRaWAN protocol used by the concentrator ensures strong, reliable signal coverage, even in hard-to-reach areas. We highly recommend the ACRIOS Data Concentrator to anyone looking to enhance their smart metering infrastructure.
“We were searching for a way that would allow us to connect existing M-Bus and MODBUS meters to our LoRaWAN network and found the solution provided by ACRIOS valuable for these use cases.“
Tell us what you need. We’ll find the best solution together.
