Blocker-USG4. B.One

The Blocker-USG4. B.One is a fiscal gas meter for domestic use that measures and converts natural gas volumes to reference conditions (Tb = 288.15 K, Pb = 101325 Pa) in accordance with Directive 2014/32/EU (MID).

It combines a G4 ultrasonic flow sensor, a management electronics board (EPCA), an NB-IoT modem and a remotely controlled valve compliant with EN 16314:2013, integrated into a single unit. Its dimensions fit a G4 meter, so it can replace an existing meter without adapting the installation or the technical  compartment.

The products shown here may not be available in your region due to legal regulations or specific requirements. Please contact us at export@zennergas.it or vertrieb@zenner.com to find out more about our products and their availability.

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Blocker-USG4. B.One
Blocker-USG4. B.One

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Blocker-USG4. B.One
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Performance characteristics in overview

  • Measurement principle based on advanced ultrasonic measurement technology
  • Standard version with integrated temperature conversion to reference conditions (T);
    Optional version: integrated pressure conversion to reference conditions (TP)
  • Certified for gas measurement in mixtures containing up to 50% hydrogen
  • Automatic identification on the MDC
  • Suitable for installations in area ATEX Zone1
  • IP67 ingress protection rating
  • Data logging function
  • Dual battery – Independent power supply for metrology and remote communication
  • NB-IoT module for data transmission
  • Built-in shut-off valve for deactivation/ activation of gas supply
  • Anti-tampering protection

Additional features

  • Electronic totaliser
  • LCD display
  • Intuitive user interface, two function keys
  • Configuration via optical interface (IEC 62056-21)
  • Remote FW update
  • Dynamic multi-tariff (3 bands)

Approvals and compliance

  • MID- Directive 2014/32/EU
  • EN 1359:2017
  • OIML R137:2012
  • EN 16314:2013
  • WELMEC 7.2:2025
  • ATEX – Directive 2014/34/EU
  • RED – Directive 2014/53/EU
  • DLMS/COSEM protocol, UNI-TS 11291
  • Complies with the requirements of the ARG155/08 regulation of the italian Authority
  • AES-128 encryption

Applications

  • Residential application
  • Gas measurement at basic condition T and P (optional)

Product options

Measuring Principle
  • Ultrasonic Meters
Communication Technologies
  • Radio via Narrow Band IoT

Downloads

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