
Heat meters are used for the strand-by-strand recording of heating consumption in heating systems with central heat production. On account of the compact design, straightforward operation and wide area of application, the series are suitable both for under floor heating and for horizontal piped radiator systems. Thanks to integrated modules, certain series can be equipped with the required communication technology from the factory (radio, M-Bus or impulse output).
The Gx series can be retrofitted in situ with external modules at any time. In addition to their communication ability, the other outstanding feature of the devices is their high level of metering accuracy. The heat meters are available as screw-type or measuring capsule meters in different design sizes, so that all standard systems can be equipped. Series G58 and G18 are particularly suitable for recording solar heat (operation with water/glycol mixtures).
Our range of split heat meters rounds off the QUNDIS heat meter range. The area of application covers systems with a flow volume higher than that of compact heat meters. Different volume meters can be used (single jet, multi-jet, Woltman or ultrasonic volume meters) depending on the requirement. Value storage and display takes place in a separate computer.

Screw-type heat meters with IrDA interface
WFx4 series – Q opto (IrDA), can also be used in the Q basic system.
The electronic heat meters of this series can be readout and parameterised via an IrDA interface. As screw-type meters, they are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier through the electronic readout of the metering devices and optimised in terms of error detection and data transmission security.
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Download data sheet PDF (182 kB)

Measuring capsule heat meter with IrDA interface
WMx4 series – Q opto (IrDA), can also be used in the Q basic system.
The electronic heat meters of this series can be readout and parameterised via an IrDA interface. They are screwed as measuring capsule meters to the pipe system via an EAT/EAS (separate housing). Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier through the electronic readout of the metering devices and optimised in terms of error detection and data transmission security.
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Download data sheet PDF (302 kB)

Screw-type heat meters with optical interface and retrofitted external modules
G2x series – Q opto (1107), can also be used in the Q basic system and through modules in the Q walk-by, Q AMR and Q M-Bussystems.
The electronic heat meters of this series can be readout and parameterised via an optical (1107) interface. As screw-type meters, they are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier by electronic readout of the metering devices and optimised with regard to error detection and data transmission security.
This series can be retrofitted by modules, so that it can be used in theQ walk-by, Q AMR and Q M-Bus systems. (The modules for the systems Q walk-by and Q AMR will be available in the first quarter 2010).
As series G21 with combined heat and cold metering.
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Download data sheet PDF (429 kB)

Measuring capsule heat meters with optical interface and retrofitted external modules
G5x series – Q opto (1107), can also be used in the Q basic system and via modules in the Q walk-by, Q AMR and Q M-Bussystems.
The electronic heat meters of this series can be readout and parameterised via an optical (1107) interface. They are screwed as 2" measuring capsule meters to the pipe system through an EAT/EAS (separate housing). Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier by electronic readout of the metering devices and optimised with regard to error detection and data transmission security.
This series can be retrofitted by modules, so that it can be used in theQ walk-by, Q AMR and Q M-Bus systems. (The modules for the Q walk-by and Q AMR systems will be available in the first quarter 2010).
As G55 series with combined heat and cold metering, as G58 series with adaptation to water/glycol mixtures for solar systems.
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Download data sheet PDF (478 kB)

Split heat meters with optical interface and retrofitted external modules
G03-G19 series – Q opto (1107), can also be used in the Q basic system and through modules in the Q walk-by, Q AMR and Q M-Bussystems.
The heat meters of this series can be readout and parameterised via an optical (1107) interface. The area of application for split heat meters covers systems with a flow volume higher than that of compact heat meters. Different volume meters can be used (single jet, multi-jet, Woltman or ultrasonic volume meters), depending on the application case. Value storage and display takes place in the calculator. The readout process is made easier by electronic readout of the metering devices and optimised with regard to error detection and data transmission security.
This series can be retrofitted by modules, so that it can be used in theQ walk-by, Q AMR and Q M-Bus systems. (The modules for the Q walk-by and Q AMR systems will be available in the first quarter 2010).
As G13/14 series with combined heat and cold metering, as G18/19 series with adaptation to water/glycol mixtures for solar systems.
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Screw-type heat meters with M-Bus interface, alternative retrofit M-Bus module for the recording of consumption data using an M-Bus
G2x series – Q M-Bus, can also be used in the Q basic and Q opto (1107) system as well as via modules in the systems Q walk-by and Q AMR.
The heat meters of this series can be integrated into an M-Bus system either via an internal M-Bus module or via a retrofit external M-Bus module. As screw-type meters, they are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible. The readout process for the metering devices is made easier by central readout in the wired M-Bus network and optimised in terms of error detection and data transmission security. In addition, current values are available via the M-Bus.
As G21 series with combined heat and cold metering.
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Download data sheet PDF (429 kB)

Measuring capsule heat meters with M-Bus interface, alternative retrofit M-Bus module for the recording of consumption data using an M-Bus
G5x series – Q M-Bus, can also be used in the Q basic and Q opto (1107) system as well as via modules in the systems Q walk-by and Q AMR.
The heat meters of this series can be integrated into an M-Bus system either via an internal M-Bus module or via a retrofit external M-Bus module. They are screwed as 2" measuring capsule meters to the pipe system through an EAT/EAS (separate housing). Saving and displaying the cumulative values on a selected key date is possible. The readout process for the metering devices is made easier by central readout in the wired M-Bus network and optimised in terms of error detection and data transmission security. In addition, current values are available via the M-Bus.
As G55 series with combined heat and cold metering, as G58 series with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (501 kB)
Download data sheet PDF (478 kB)

Split heat meters with M-Bus interface, alternative retrofit M-Bus module for the recording of consumption data using an M-Bus
G03-G19 series – Q M-Bus, can also be used in the Q basic and Q opto (1107) system as well as via modules in the systems Q walk-by and Q AMR.
The heat meters of this series may optionally be integrated into an M-Bus system either via an internal M-Bus module or a retrofit external M-Bus module. The area of application for split heat meters covers systems with a flow volume higher than that of compact heat meters. Different volume meters can be used (single jet, multi-jet, Woltman or ultrasonic volume meters), depending on the application case. Value storage and display takes place in the calculator. The readout process for the metering devices is made easier by central readout in the wired M-Bus network and optimised in terms of error detection and data transmission security. In addition, current values are available via the M-Bus.
As G13/14 series with combined heat and cold metering, as G18/19 series with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (552 kB)

Screw-type capsule heat meters with integrated M-Bus interface for the recording of consumption data using an M-Bus
Series: WFx2 – Q M-Bus, aslo variants available for the Q AMR system.
The electronic heat meters of this series can be integrated into an M-Bus system via an internal M-Bus interface. As screw-type meters, they are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible. The readout process for the metering devices is made easier by central readout in the wired M-Bus network and optimised in terms of error detection and data transmission security. In addition, current values are also available via the M-Bus.
Download data sheet PDF (433 kB)

Measuring capsule heat meters with integrated M-Bus interface for the recording of consumption data using an M-Bus
Series: WMx3 – Q M-Bus, also variants available for the Q AMR system.
The electronic heat meters of this series can be integrated into an M-Bus system via an internal M-Bus interface. They are screwed as 2" measuring capsule meters to the pipe system through an EAT/EAS (separate housing). Saving and displaying the cumulative values on a selected key date is possible. The readout process for the metering devices is made easier by central readout in the wired M-Bus network and optimised in terms of error detection and data transmission security. In addition, current values are also available via the M-Bus.
Download data sheet PDF (121 kB)

Measuring capsule heat meters with optical interface, together with walk-by radio module for heat meters for the recording of consumption data by radio
G2x series – Q walk-by, can also be used in Q basic and Q opto (1107) system as well as in the Q AMR system following re-programming of the module.
The heat meters of this series can be integrated into a Q walk-by radio system via an external walk-by radio module. This means that these heat meters can be readout by radio in situ without the use of stationary data collectors. This means that it is no longer necessary to enter the property or note the readout values by hand. Errors in transmission of data to the billing system are excluded to a major extent. If required, the module can be re-programmed once for use in the Q AMR system.
As screw-type meters, the heat meters are screwed directly with the pipe system. Saving and displaying the cumulative values on a selected key date is possible.
(The modules for the systems Q walk-by and Q AMR will be available in the first quarter 2010).
As series G21 with combined heat and cold metering.
Download brochure PDF (487 kB)
Download data sheet PDF (429 kB)

Measuring capsule heat meters with optical interface, together with walk-by radio module for heat meters for the recording of consumption data by radio
G5x series – Q walk-by, can also be used in Q basic and Q opto (1107) system as well as in the Q AMR system following re-programming of the module.
The heat meters of this series can be integrated in a Q walk-by radio system via an external walk-by radio module. This means that these heat meters can be readout by radio in situ without the use of stationary data collectors. This means that it is no longer necessary to enter the property or note the readout values by hand. Errors in transmission of data to the billing system are excluded to a major extent. The module can be re-programmed once for use in the Q AMR system if required. The heat meters of this series are screwed to the pipe system as 2" measuring capsule meters through an EAT/EAS (separate casing).
(The modules for the systems Q walk-by and Q AMR will be available from the first quarter 2010).
As G13/14 series with combined heat and cold metering, as G18/19 series with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (501 kB)
Download data sheet PDF (478 kB)

Split heat meters with optical interface, together with walk-by radio module for heat meters for the recording of consumption data by radio
Series G03-G19 – Q walk-by, can also be used in Q basic and Q opto (1107) system as well as in the Q AMR system following re-programming of the module.
The heat meters of this series can be integrated in a Q walk-by radio system through an external walk-by radio module. This means that these heat meters can be readout by radio in situ without the use of stationary data collectors. This means that it is no longer necessary to enter the property or note the readout values by hand. Errors in transmission of data to the billing system are excluded to a major extent. The module can be re-programmed once for use in the Q AMR system if required. The area of application for split heat meters covers systems with a flow volume higher than that of compact heat meters. Different volume meters can be used (single jet, multi-jet, Woltman or ultrasonic volume meters), depending on the application case. Value storage and display takes place in the calculator.
Variants of the calculator are available with combined heat and cold metering or with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (552 kB)

Screw-type heat meter
with integrated radio for remote readout of consumption data by radio
Series: WFx2 – Q AMR, also variants for the Q M-Bus system available.
The electronic heat meters of this series can be integrated into the AMR system via an internal radio transmitter. As screw-type meters, they are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier through the electronic readout of the metering devices and optimised in terms of error detection and data transmission security.
Download data sheet PDF (433 kB)

Measuring capsule heat meter with integrated radio for remote readout of consumption data by radio
Series: WMx3 – Q AMR, also variants for the Q M-Bus system are available.
The electronic heat meters of this series can be integrated into the AMR system via an internal radio transmitter. They are screwed as 2" measuring capsule meters to the pipe system through an EAT/EAS (separate housing). Saving and displaying the cumulative values on a selected key date is possible. The readout process is made easier through the electronic readout of the metering devices and optimised in terms of error detection and data transmission security.
Download data sheet PDF (121 kB)

Screw-type heat meters with optical interface, together with radio module AMR for heat meters for the remote readout of consumption data by radio
G2x series – Q AMR, can also be used in the Q basic and Q opto (1107) system, and there are variants available for the Q M-Bus system.
This series can be readout in connection with an external AMR radio module and using stationary data collectors. Readout can take place through different expansion stages in the building, outside the building or by remote data transmission. This means that it is no longer necessary to enter the flat (or even the building) and note the readout values by hand. Errors in the transmission of data to the billing system are excluded to a large extent.
As screw-type meters, the heat meters are screwed directly to the pipe system. Saving and displaying the cumulative values on a selected key date is possible.
(The modules for the systems Q walk-by and Q AMR will be available in the first quarter 2010).
As series G21 with combined heat and cold metering.
Download brochure PDF (487 kB)
Download data sheet PDF (429 kB)

Measuring capsule heat meters with optical interface, together with the radio module AMR for heat meters for the remote readout of consumption data by radio
G5x series – Q AMR, can also be used in the Q basic and Q opto (1107) system, and there are variants available for the Q M-Bus system.
This series can be readout in connection with an external AMR radio module and using stationary data collectors. Readout can take place through different expansion stages in the building, outside the building or by remote data transmission. This means that it is no longer necessary to enter the flat (or even the building) and note the readout values by hand. Errors in transmission of data to the billing system are excluded to a major extent. The heat meters of this series are screwed to the pipe system as 2" measuring capsule meters via an EAT/EAS (separate casing).
(The modules for the Q walk-by and AMR systems will be available from the first quarter 2010).
As G55 series with combined heat and cold metering, as G58 series with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (501 kB)
Download data sheet PDF (478 kB)

Split heat meters with optical interface, together with radio module AMR for heat meters for the remote readout of consumption data by radio
G03-G19 series – Q AMR, can also be used in the Q basic and Q opto (1107) system, and there are variants available for the Q M-Bus system.
The heat meters of this series can be readout in connection with an external AMR radio module and using stationary data collectors. Readout can take place through different expansion stages in the building, outside the building or by remote data transmission. This means that it is no longer necessary to enter the flat (or even the building) and note the readout values by hand. Errors in transmission of data to the billing system are excluded to a major extent. The area of application for split heat meters covers systems with a flow volume higher than that of compact heat meters. Different volume meters can be used (single jet, multi-jet, Woltman or ultrasonic volume meters), depending on the application case. Value storage and display takes place in the calculator.
Available as series G13/14 with combined heat and cold metering, as series G18/19 with adaptation to water/glycol mixtures for solar systems.
Download brochure PDF (552 kB)