Compact residential heat meter, type ELF 2, DN15 (1/2"), Q3=1.0 m3/h, Tmax: 90°C, L=110mm, installation on supply, connection GZ3/4", brass body 69-1046207-000

Residential heat meter – precise measurement and application flexibility

The compact ELF 2 heat meter is an advanced device designed for billing thermal energy consumption in residential, office and commercial buildings. Equipped with a precise flow converter and temperature sensors, it provides accurate measurements and reliable operation. The device is versatile – it can operate as a heat, cooling or both media meter simultaneously, making it an ideal solution for various installations.

Construction and functionality

The ELF 2 heat meter is characterized by a compact design, allowing for installation in both horizontal and vertical positions. It is equipped with an electronic calculator with a rotating display, which makes it easy to read data under all conditions. Thanks to the dynamic temperature measurement period (2-6 seconds), it works perfectly in residential heating units (logoterms), ensuring accurate billing even with short-term flows. The body made of brass guarantees durability and corrosion resistance.

Communication and integration with systems

The device supports the Modbus protocol, enabling integration with building automation systems and remote data reading of wired and wireless systems. Optional communication modules (M-Bus, Wireless M-Bus, USB) are also available, which expand the capabilities of the device and allow connection of additional pulse counters (water meters, electricity meters). The IP54 protection class provides resistance to dust and splashes, allowing installation in various environmental conditions.

Key features:

• Versatility: ability to operate as a heat, cooling or both media meter simultaneously.
• Precision: accuracy class 2 (for horizontal position) ensures reliable measurements.
• Compact size: facilitates installation in limited space.
• Installation flexibility: possibility of installation in horizontal or vertical position.
• Communication: support for Modbus protocol and optional communication modules (M-Bus, Wireless M-Bus, USB).
• Durability: brass body ensures corrosion resistance.
• Dynamic measurement: short temperature measurement period ideal for heating units.
• Wide temperature range: maximum medium temperature is 90°C.
• Battery power supply: ensures independence from the electrical network.

Nominal diameter: DN15 (1/2") Maximum flow rate (Q3): 1.0 m³/h Maximum medium temperature: 90 °C Installation length: 110 mm Connection: GZ3/4" Protection class: IP54 Connection type: External thread Sensor type (temperature): PT500

This heat meter is a solid solution for both professional installers looking for a reliable device for installation in heating systems, and for end users expecting precise billing of thermal energy consumption. Its versatility and rich communication possibilities make it an investment for years to come.