Ultrasonic Heat Meter DELTA III DN15, 110 mm, qp 1.5 m³/h, M-Bus, MID

The DELTA III DN15 ultrasonic heat meter from Helvatron AG is a compact and accurate solution for reliable heat energy measurement in apartments, residential buildings and heating systems. With MID approval for billing purposes, this model is suitable for legally compliant consumption-based heat metering.

The meter features an integrated M-Bus communication interface, allowing simple integration into remote reading systems and building energy monitoring applications. For central data collection and efficient meter readout, the DELTA III DN15 can be combined with the M-Center data logger.

Key benefits of the DELTA III DN15

Accurate ultrasonic measurement technology

The built-in ultrasonic flow sensor provides precise and stable measurement over the long term. Compared with conventional mechanical measuring principles, ultrasonic technology offers low wear and dependable performance.

MID approved for billing

The DELTA III DN15 is MID compliant and approved for billing-related applications. The MID verification fee is already included.

Flexible installation options

This heat meter supports both horizontal and vertical installation. The calculator is rotatable and removable, making installation and reading easier. A wall mounting adapter is included.

Ready for M-Bus remote reading

Thanks to its integrated M-Bus interface, the DELTA III DN15 is ideal for modern building automation, centralized consumption recording and remote meter reading. For professional monitoring setups, it can be linked to the M-Center.

Technical data DELTA III DN15

• Manufacturer: Helvatron AG
• Model: DELTA III
• Connection size: DN15
• Installation length: 110 mm
• Nominal flow qp: 1.5 m³/h
• Flow sensor: Ultrasonic
• Thread: ¾B
• Pipe connection: ½
• Communication: M-Bus
• Factory cable length: 1.5 m
• Baud rate: 2400 (default)
• M-Bus secondary address: Serial number
• M-Bus primary address: 000
• Temperature sensor connection: Pt500
• Temperature sensor set: short direct immersion temperature sensors, 27.5 mm
• Temperature sensor cable length: approx. 1.5 m
• Power supply: Battery 19500 mAh
• Battery operated: Yes
• Operating pressure: 16 / 25 bar
• Material: Brass
• MID compliant: Yes
• Installation position: horizontal and vertical
• Monthly value storage: throughout the entire service life

Product highlights

• Very low installation height
• Ultrasonic flow sensor
• Horizontal and vertical installation possible
• All monthly values stored over the full lifetime
• Precise and long-term stable
• Rotatable and removable calculator
• Wall mounting adapter included
• MID verification fee included

Typical applications

• Apartments and multi-family buildings
• Heating circuits and substations
• Consumption-based heat billing
• M-Bus remote reading systems
• Building automation and energy monitoring
• Connection to the M-Center

FAQ for DELTA III DN15

Is the DELTA III DN15 approved for billing?

Yes, the meter is MID compliant and approved for billing purposes.

Which communication interface does it use?

The DELTA III DN15 is equipped with an M-Bus interface.

Can the heat meter be installed vertically?

Yes, it is suitable for both horizontal and vertical installation.

Which temperature sensors are used?

The unit uses a Pt500 temperature sensor set with short direct immersion sensors and approx. 1.5 m cable length.

Can I connect the DELTA III DN15 to a remote reading system?

Yes, the integrated M-Bus interface allows easy integration into remote reading and monitoring systems. For centralized data collection, the M-Center is a practical option.