Knowledge
Knowledge for planning, installation and operation
Practical articles for your project, based on the H2O and DELTA III.
Planning
Sizing and installation
Choosing the right nominal size
Why flow rate matters, not pipe diameter, with values for the H2O and DELTA III.ReadWater meter or heat meter?
What each measures, which standards apply and when a cooling meter is needed.ReadPlanning and installing ultrasonic meters
Checklist from pipe planning to commissioning, including sensors, cables and communication.ReadVerification periods in Europe
How long water and heat meters stay verified, from Germany to Italy, and how to plan replacement.ReadEMU M-Center with the H2O and DELTA III
From the service port to the first water and heat readings in the control system.ReadTechnology
Measuring principle and communication
Ultrasonic flow and thermal energy
Transit time method, reflectors, temperature difference and heat coefficient.Read →M-Bus in building services
Two-wire bus, secondary address, bus load and system design.Read →RS-485 and Modbus RTU
Interface and protocol explained separately, with a checklist.Read →LoRa for distributed meters
Gateways, network server and the limits of radio transmission.Read →NB-IoT for water and heat meters
Mobile network without a gateway of your own, compared with LoRa.Read →Integrating meters into energy management
From the meter via the data logger to the control system and Joulio-Web.Read →Glossary
Technical terms relating to water meters, heat meters, ultrasound and temperature difference.Open →Helvatron meter identifiers
For configuring data loggers and control systems.
- M-Bus manufacturer code
HVT- DLMS manufacturer code
HVT- BACnet vendor identifier
847