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Heat meters

by QUNDIS

Ultrasonic & impeller models

QUNDIS heat meters at a glance

The German metering instrument manufacturer QUNDIS produces heat meters with ultrasonic and impeller technology. Both device types are ideal system modules for measuring and recording heat consumption in heating systems with central heat generation. This means that the tried-and-tested heat meters in our Q heat series enable you to record the energy consumption of various heating, cooling, solar and hot water systems.

The Q heat series heat meters are particularly practical due to their compact design and simple operation. In its class our ultrasonic heat meter Q heat 5 US is the flattest unit on the market and, thanks to the removable calculating unit, can also be easily installed in particularly inaccessible places.

The current consumption, readout date and the readout date value can be conveniently recorded by the push of a button via a display loop.

Heat meter Q heat 5.5 R

Q heat 5.5 R

Radio integrated heat meter Q heat 5.5 R

Radio-integrated for even more convenience.

The new, Q heat 5.5 R compact heat meter with integrated radio technology stands out in terms of its flexibility for future-proof use in apartment buildings as well as commercial premises.

Screw-type and metering capsule meters are available in various design and connection sizes for recording the energy consumption of heating, solar and hot water treatment systems. All device variants are equipped as standard with a removable calculating unit. The compact design – without an extra add-on module – means that space-saving installation is no problem. Thanks to the integrated radio transmission and automatic radio start, operational start-up and integration into a Q walk-by or Q AMR radio system is quick and easy. The static recording cycle of every 36 seconds (10-year battery) results in a high level of metering accuracy (optional every 8 seconds with 7-year battery).

In order to be able to react flexibly to the most varied requirements and installation situations, the Q heat 5.5 R can be switched between flow and return on site without having to change the temperature sensors. In addition, it is also possible to change the energy unit (GJ – MJ <-> kWh – MWh).

On request, all heat meter variants can be optionally ordered with AES encryption. If required, decryption is possible within the Q SMP on a tariff-related basis.

Heat meter variantsNominal flow rates
Screw-type 80 mmqp 1,5 m³/h
Screw-type 110 mmqp 0,6 m³/h and 1,5 m³/h
Screw-type 130 mmqp 2,5 m³/h
Measuring capsule Ista IST (G 2″)qp 0,6 m³/h, 1,5 m³/h and 2,5 m³/h
Measuring capsule Allmess A1 (M77 x 1,5)qp 1,5 m³/h
Measuring capsule TE1 (M62 x 2)qp 1,5 m³/h and 2,5 m³/h
Q heat 5.5 US RNew

Q heat 5.5 US R

NEW – Radio integrated ultrasonic heat meter Q heat 5.5 US R

Metering accuracy meets future-proof features.

Ultrasonic metering technology stands for precision, long-term stable readings and easy handling during installation. If this is combined with integrated radio technology, it becomes a highly convenient package in the field of consumption data acquisition. The short, static metering cycle of every 12 seconds with the 10-year battery (optional every 4 seconds with the 7-year battery), the dynamic range of up to 1:250 as well as the Class 2 metering accuracy all result in a very high level of reading precision.

Screw-type meters are available in flow rates of 0.6 to 10.0 m3/h for recording the energy consumption of heating, cooling and hot water supply systems.

The compact design, removable calculating unit and the possibility of overhead mounting offer plenty of scope and options for installation, even in confined situations. In addition, if required it is possible on site to switch between supply and return – without changing the temperature sensors – as well as between energy units (GJ – MJ <-> kWh -MWh).

AES device encryption is possible on request. Decryption can be performed within the Q SMP on a tariff-related basis. Optionally, devices with pure AMR or AMR extended telegrams are available.

Heat meter variantNominal flow rates
Screw-type 110 mmqp 0,6 m³/h and 1,5 m³/h
Screw-type 130 mmqp 1,5 m³/h and 2,5 m³/h
NEW: Screw-type 150 mmqp 3,5 m³/h and 6,0 m³/h
NEW: Screw-type 200 mmqp 10,0 m³/h
NEW: Screw-type 260 mmqp 3,5 m³/h and 6,0 m³/h
NEW: Screw-type 300 mmqp 10,0 m³/h
Heat meter Q heat 5 M-Bus / Impulse-IN

Q heat 5 M-Bus / Impulse-IN

Heat meter Q heat 5 M-Bus / Impulse-IN

Perfect integration into M-Bus networks.

QUNDIS offers two new versions of its tried-and-tested Q heat 5 screw-type heat meter. The Q heat 5 M-Bus / Impulse-IN has integrated M-Bus and Impulse-IN communications interfaces. This enables up to 2 water meters to be integrated into an existing M-Bus network via a standard load. Thanks to the unique operating concept, parameterising the heat meters is child’s play. This significantly reduces the installation work and the cost of integration into an M-Bus network. The Q heat 5 M-Bus does without the Impuls-IN interface.

Because of their compact design and removable calculator unit, the heat meters are ideal for installation situations where space is limited. In its class, at only 63.6 mm the Q heat 5 M-Bus / Impulse-IN heat meter features the smallest installation height on the market.

Electronic heat meter Q heat 5.5

Q heat 5.5

Electronic heat meter Q heat 5.5

Compact and versatile.

The Q heat 5.5 electronic heat meter is fitted with an IrDA interface as standard. It is available as a screw-type version and a measuring capsule version for the connection interfaces IST (G2″ – Ista),  A1 (M77 x 1,5 – Allmess) and TE1 (M62 x 2 – Techem). If data transmission is to be implemented by radio (Q AMR, Q walk-by) or by cable (Q M-Bus), the device can simply be retrofitted with an add-on module.

For special applications such as water heating we have equipped Q heat 5 / Q heat 5.5 with a fast measuring cycle. All volume meters are available in the established flow dimensions of 0.6 / 1.5 and 2.5 m3/h.

The optimized display loop: After pressing any key in sleep mode the display of the Q heat 5 heat meter now shows the current reading, the scheduled readout day and the scheduled readout value in a loop. This loop is repeated 10 times.  In order to simplify readout operations, a display test separates the display of the current value from the scheduled readout value. Readouts by tenants or untrained personnel have now become much simpler.

Heat meter variantsNominal flow rates
Screw-type 80 mmqp 1,5 m³/h
Screw-type 110 mmqp 0,6 m³/h and 1,5 m³/h
Screw-type 130 mmqp 2,5 m³/h
Measuring capsule Ista IST (G 2″)qp 0,6 m³/h, 1,5 m³/h and 2,5 m³/h
Measuring capsule Allmess A1 (M77 x 1,5)qp 1,5 m³/h
Measuring capsule TE1 (M62 x 2)qp 1,5 m³/h and 2,5 m³/h
Ultrasonic heat meter Q heat 5 US

Q heat 5 US

Ultrasonic heat meter Q heat 5 US

Innovative and highly precise.

The ultrasonic heat meter Q heat 5 US operates on the basis of an innovative, patented ultrasonic measuring process. It shows its strengths wherever especially precise and reliable long-term metering is essential. In addition, high-quality materials prevent wear and tear and the build-up of deposits.

Its uniquely compact design enables installation even where space is extremely limited, thus providing an unrestricted choice of location. Of course the Q heat 5 US device can be integrated with the entire QUNDIS system environment via a range of communication modules. All volume meters are available in the established flow dimensions of 1.5 m³/h and 2.5 m³/h.

Q heat split

Q heat split

Split heat meter Q heat split

For large volumes and high temperatures.

Our Q heat split heat meters consist of an electronic calculating unit, a volume meter and temperature sensors. They are unbeatable for large volume flows and high temperature loads.

Depending on the volume which is pumped, the measuring unit takes the form of a Woltman sensor or ultrasonic version. Connection with the pipe system is by means of a threaded or flanged connector. Saving and displaying values is the task of the calculating unit.

Other modern variants feature combined heat and cold metering (G13/14) or with adaptation for water/glycole mixtures for solar installations (G18/19). There are also device version available with an internal M-Bus module, retrofittable communication mounts or impulse out for integration into a remote meter reading system.

Radio or M-Bus System

Modern interfaces to our radio or M-Bus systems facilitate the recording of consumption data for the metering service. The meter is parameterised via laptop using the IrDA interface.

For a wide range of flow rates

This makes our Q heat series heat meters extremely versatile.

Suitable for glycol mixtures

The Q heat series heat meters can also be used to record the consumption of solar heating systems.

Heat meters by QUNDIS.

Qheat

Metering from 4 seconds

Our ultrasonic instruments deliver recorded values with a fast metering cycle of 4 seconds. The Q heat 5 basic impeller meters record in this mode every 6 seconds.

Meters heat & cold

Q heats can be used variably. The devices measure the energy consumption of heat and cooling systems.

A wide range of variants

Suitable for heating, cooling, solar and hot water systems, and available as both screw-type or metering capsule variants.

All Benefits

at a sight.

Frequently asked questions - Heat meters

Are you a tenant and have questions about your metering technology or billing? Then please contact your property management company or the responsible metering service.

We offer various types of electronic heat meters. The data sheets on our website will explain to you what appears in the display of your heat meter. You can find our data sheets her »

With every electronic heat meter you can have the current and the annual consumption displayed. To access the menu you press the upper key twice and the lower key once. Level LO shows you current consumption, level L1 the annual consumption. With the upper key you can switch from level to level and with the lower key you can move from field to field within an individual level. To return to the menu from within a level you press both keys at the same time.

Hummel

helps!

Installation videos for Q heat
+49 361 26 280-0 info@qundis.com