Ultrasonic Heat Meter DELTA III DN32, 260 mm, qp 6 m³/h, M-Bus, MID

The DELTA III DN32 ultrasonic heat meter from Helvatron AG is intended for measuring tasks that require a higher nominal flow rate together with reliable long-term accuracy. With DN32, an installation length of 260 mm and qp 6 m³/h, this model is especially suitable for larger heating circuits, technical plant rooms and supply lines with increased throughput.

The combination of an ultrasonic flow sensor, Pt500 temperature sensor connection and integrated M-Bus communication makes the DELTA III DN32 a practical choice for professional heat consumption metering. Thanks to its MID approval, the meter can also be used in billing-related applications. For central readout and structured data handling, it can be connected to the M-Center data logger.

Why the DELTA III DN32 is a strong option

Designed for higher flow demand

The DN32 version is a good fit whenever more capacity is needed than smaller meter sizes can provide. With qp 6 m³/h, it is built for applications that require dependable measurement under higher flow conditions.

Low-wear ultrasonic measuring principle

The integrated ultrasonic flow sensor supports accurate heat metering with low mechanical stress in the measuring section. That is an important advantage in systems focused on long service life, stable readings and reduced maintenance effort.

Simple integration into central readout structures

Via the integrated M-Bus interface, the DELTA III DN32 can be incorporated into remote reading structures, submetering concepts and building management systems. For central collection and evaluation of meter values, the M-Center is a suitable companion product.

Advantages in day-to-day plant operation

The DELTA III DN32 is suitable for horizontal and vertical installation. Its calculator is rotatable and removable, which simplifies installation, servicing and later readout. A wall mounting adapter is included.

In addition, the heat meter stores all monthly values throughout its service life. This is useful for documentation, analysis and transparent billing processes.

Technical data DELTA III DN32

• Manufacturer: Helvatron AG
• Series: DELTA III
• Nominal size: DN32
• Installation length: 260 mm
• Nominal flow qp: 6 m³/h
• Measurement principle: Ultrasonic
• Communication interface: M-Bus
• 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
• Factory cable length: 1.5 m
• Power supply: Battery 19500 mAh
• Operating pressure: 16 / 25 bar
• Material: Brass
• MID compliant: Yes
• Installation position: horizontal and vertical
• Storage: monthly values over the full service life

Main strengths of the DELTA III DN32

• Heat meter for higher flow applications
• Ultrasonic measurement for precise and stable results
• MID approval for billable heat metering
• M-Bus interface for remote reading and monitoring
• Horizontal or vertical installation possible
• Low installation height
• Rotatable and removable calculator
• Wall mounting adapter included
• Monthly value storage over the full lifetime
• Suitable for connection to M-Center

Where this DN32 version is typically used

• Larger heating circuits in residential and commercial buildings
• Technical supply lines and plant rooms
• Distribution systems with increased flow demand
• Billing-related heat consumption metering
• M-Bus infrastructure in retrofit and new-build projects
• Energy monitoring with M-Center

FAQ for DELTA III DN32

When is the DELTA III DN32 the right choice?

This version is suitable when a heat meter with DN32 and qp 6 m³/h is required for higher flow rates.

Is the meter approved for billing use?

Yes, the DELTA III DN32 is MID compliant and can be used in billing-related applications.

Which communication interface is available?

The meter is equipped with an M-Bus interface for remote readout and central data acquisition.

Which installation positions are supported?

The DELTA III DN32 can be installed horizontally or vertically.

How can I collect the consumption data centrally?

For structured readout and further data processing, the meter can be connected via M-Bus to suitable systems such as the M-Center.