Heat meter Q heat 5 US

Transcription

1 Heat meter Q heat 5 US Ultrasonic heat meter with ultrasonic measurement technology (runtime difference method) with IrDA interface and an interface for retrofitting external modules. Exact measurement of even very small flow quantities. Can be installed in any position, no moving parts in the volume flow. Calculator unit can be removed for external positioning. Can be used in the Q opto, Q basic, Q M-Bus, Q walk-by and Q AMR systems. Can be retrofitted with external modules for use in the above-mentioned systems. 1/20 Ultrasound heat meter Q heat 5 US - data sheet DST0QHEAGB0 USCHA

2 Application The heat meter is used for measuring heat energy. The main areas of application are in central heating systems where the heating energy is outputted individually to different consumers. This is meaningful in: ~ ~ Apartment buildings ~ ~ Offices and administration buildings Functions General ~ ~ IrDA interface for reading out and setting parameters for the heat meter ~ ~ Mains-independent, for local use, 6 or 10-year lithium battery ~ ~ Measured values are recorded using two PT 1000 platinum resistance thermometers ~ ~ Little influence by media properties (temperature, conductance, viscosity and pressure) ~ ~ Can be installed in any position, no moving parts in the volume flow ~ ~ Detachable calculator unit with 80 cm connection cable ~ ~ High resolution thanks to 8-digit LC display that indicates current value, old value, check sum as well as many service and operating parameters ~ ~ Additional display of 15 monthly values with date ~ ~ Storage of the maximum supply flow and return flow temperatures as well as the maximum current flow with date ~ ~ Programming of the device-specific parameters (e.g. due date) is possible on site using the control keys or the IrDA interface ~ ~ The communication technology required can be retrofitted in the field by means of add-on modules ~ ~ With the basic version, add-on modules for radio or M-Bus communication can be retrofitted on-site via the module interface Screw-type variant ~ ~ Heat meter Q heat 5 US for direct or indirect installation of the temperature sensors ~ ~ MID approval granted 2/20

3 System modules Q basic Q basic are products that can be read out visually. The Q basic system represents the entry level to reliable consumer data recording. They are especially suitable for tasks or systems that do not require complex data evaluation or particularly fast readout process. How Q basic works The time needed for classical on-site meter reading should be borne in mind when assessing whether this system is suitable. Measuring results are noted manually. Q opto Devices in the Q opto system are read out using an optical close-range interface. More data can be read out using the Q opto system than is the case with visual readout of Q basic. These are products with a close range optical interface that can be read out with a corresponding unit. Q M-Bus How Q opto works The IrDA interface makes semi-automatic readout possible through the opto-electronic interface using special readout devices and software. Data exchange takes place using infrared light over short distances. Devices in the Q M-Bus system are read out using a wired device. The Q M-Bus system is based on the wired M-Bus standard for wired meter remote readout and can be used with all kinds of consumer meters. The greatest advantage of the Q M-Bus technology is its high level of flexibility: since it is no problem to operate devices from various manufacturers on one bus. How Q M-Bus works The measuring devices are connected by a 2-wire bus cable to a building control unit and can be read out centrally from there. This means on-site readout at the device is no longer necessary. Depending on the system level, significantly shorter readout intervals are possible. This way, information about energy consumption is available quickly. Q walk-by Devices in the Q walk-by system are read out supported by local radio signals. Q walk-by makes meter reading as inexpensive as it is easy by using a mobile readout system just walking by. The meter reader does not have to enter the tenant s flat or office. In the case of smaller systems, data can usually be received outside the building in most cases. How Q walk-by works The meters transmit current consumption data at the set reading time. The meter reader only needs his mobile readout system. This comprises a mobile data collector and a netbook with respective software. The data collector collects the radio telegrams and, after a plausibility check, transmits them wirelessly to the netbook via a Bluetooth interface. 3/20

4 Q AMR Devices in the Q AMR system are read out radio-supported. All the data recorded by the metering devices are transmitted wirelessly to the stationary network nodes. The continual data exchange between the devices means that each network node has all the consumption information available. These data can be read out via the interface at the node, by radio from a (stationary) vehicle or via a gateway by modem or IP interface from a remote location. How Q AMR works The metering devices transmit the current consumption data in cycles. The battery-operated network nodes receive, check and save the data fully automatically. Data readout can now be carried out at any network node, either directly via the data interface or "from outside" by radio. An even easier option is to read out the data directly from your office via a gateway, e.g. via the GSM phone network, via GPRS or via computer or broadband cable networks. Q AMR is compatible with the KNX European standard for home automation. Type summary On the basis of the type matrix, the heat meter variant can be determined by combining the possible equipment options. Not all features can be combined with one another due to special technical features. Product family Options Part no. * Block1 Block2 Block3 Block4 Heat meter - calculator unit detachable H M R 5 x x x x x x x x x x x x 0 Version Options Part no. * Block1 Block2 Block3 Block4 Standard (without extension / adaptation) x x x x 0 0 A x x x x x x x x x 0 Communication Options Part no. * Block1 Block2 Block3 Block4 IrDA x x x x 0 0 x 1 x x x x x x x x 0 4/20

5 Flow sensor Screw fitting Part no. * Supply flow temperature sensor (VL) Options Return flow temperature sensor (RL) Block1 Block2 Block3 Block4 1.5 m³/h mm Return-flow installation 2.5 m³/h mm Return-flow installation VL direct/indirect submersible RL integrated direct submersible VL direct/indirect submersible RL integrated direct submersible x x x x x x x x 1 x x x x x x x 0 x x x x x x x x 2 x x x x x x x 0 Temperature sensor Options Part no. * Block1 Block2 Block3 Block4 5.0 x 45 mm m cable length x x x x x x x x x 0 x x x x x x x 45 mm m cable length x x x x x x x x x 1 x x x x x x x 45 mm m cable length x x x x x x x x x 4 x x x x x x x 45 mm m cable length x x x x x x x x x 5 x x x x x x 0 Voltage supply Supply + cycle Options Part no. * Block1 Block2 Block3 Block4 Battery 10 years + 12 seconds x x x x x x x x x x 8 x x x x x 0 Battery 6 years + 4 seconds x x x x x x x x x x 9 x x x x x 0 5/20 * x = any option code

6 Approval medium Options Part no. * Block1 Block2 Block3 Block4 Heat MID/Class 3 (standard) x x x x x x x x x x x 0 x x x x 0 Due date Options Part no. * Block1 Block2 Block3 Block (standard) x x x x x x x x x x x x 0 x x x 0 Threshold value (heat recording) Options Part no. * Block1 Block2 Block3 Block4 1.0 K (standard) x x x x x x x x x x x x x 0 x x 0 Marking documentation Options Part no. * Block1 Block2 Block3 Block4 German - German (standard) x x x x x x x x x x x x x x 0 x 0 English - English x x x x x x x x x x x x x x 2 x 0 Display Options Part no. * Block1 Block2 Block3 Block4 kwh (standard) x x x x x x x x x x x x x x x 0 0 MWh x x x x x x x x x x x x x x x 2 0 MJ* x x x x x x x x x x x x x x x 3 0 GJ* x x x x x x x x x x x x x x x 4 0 (*) Available on request. 6/20

7 Installation material Screw-type meter Installation sets with RL ball valves in accordance with ISO Part no. Direct measurement installation set R 3/4" with RL ball valves for WMZ with q p 0.6 m³/h and 1.5 m³/h HMXI-K Direct measurement installation set R 1" with RL ball valves for WMZ with q p 0.6 m³/h and 1.5 m³/h HMXI-K Direct measurement installation set R 1" with RL ball valves for WMZ with q p 2.5 m³/h HMXI-K Direct measurement installation set R 3/4" with RL ball valves for WMZ with q p 2.5 m³/h HMXI-K Installation sets with RL screw fittings in accordance with ISO Direct measurement installation set R 3/4" with RL screw fittings for WMZ with q p 0.6 m³/h and 1.5 m³/h HMXI-K Direct measurement installation set R 1" with RL screw fittings for WMZ with q p 0.6 m³/h and 1.5 m³/h HMXI-K Direct measurement installation set R 1" with RL screw fittings for WMZ with q p 2,5 m³/h HMXI-K Direct measurement installation set R 3/4" with RL screw fittings for WMZ with q p 2.5 m³/h HMXI-K Flushing tubes Flushing tube G 3/4", 110 mm Flushing tube G 1", 130 mm FKM0033 FKM0034 Adapter extension sets Adapter set G 3/4" x G 1" HMXI-K Extension set G 3/4" x G 1", 110 to 130 mm HMXI-K Extension set G 3/4" x G 3/4", 110 to 130 mm Extension set 3/4 x G1, 110 to 190 mm HMXI-K HMXI-K Installation material Ball valves with additional opening for insertion of the temperature sensor in accordance with ISO Part no. The gaskets are not included in the scope of supply, please order separately. for pipe thread R 3/4" for pipe thread R 1" FKM0024 FKM0025 7/20

8 Installation material Ball valves in accordance with ISO The gaskets are not included in the scope of supply, please order separately. for pipe thread R 3/4" G 3/4 FKM0028 for pipe thread R 1" G 3/4 FKM0029 for pipe thread R 3/4" G 1" FKM0030 for pipe thread R 1" G 1" FKM0031 Screw fittings in accordance with ISO The gaskets are not included in the scope of supply, please order separately. for pipe thread R 3/4" G 3/4 FKM0019 for pipe thread R 1" G 3/4 FKM0020 for pipe thread R 3/4" G 1" FKM0021 for pipe thread R 1" G 1" FKM0022 Individual parts for fitting immersion sleeves Tee for immersion sleeve installation R 3/4" FKM0036* Tee for immersion sleeve installation R 1" FKM0037* Immersion sleeve for the above-mentioned tee G 1/4", Ø 5.0 mm FKM0038 Immersion sleeve for the above-mentioned tee G 1/4", Ø 5.2 mm FKM0039 Replacement immersion sleeves (for existing external installation sets) Immersion sleeve G 1/4", Ø 5.0 mm FKM0038 Immersion sleeve M 10x1, Ø 5.0 mm FKM0051* Immersion sleeve G 1/4", Ø 5.2 mm FKM0039 Immersion sleeve M 10x1, Ø 5.2 mm FKM0052* (*) These replacement immersion sleeves do not fit the FKM0036 and FKM0037 tees) Other individual parts Gasket for meter 2 mm, 3/4" FKS0005 Gasket for meter 2 mm, 1" FKS0006 Seal for temperature sensor or volume meter Wire length 250 mm FNS0001 Temperature sensor sleeve G 1/4" Temperature sensor sleeve M 10 x 1 FKM0049 FKM0050 8/20

9 Ordering The part numbers shown in the type summary must be quoted in orders. Technology The heat meter comprises a pair of precise temperature sensors and an ultrasonic flow meter which is installed in a hot water circuit. An electronic calculator unit continually calculates the difference in temperature between the supply and return flow and the flow rate. The heating capacity calculated from the two values is cumulated, displayed or forwarded to a data-processing system by radio or cable. The Q heat 5 US is a heat meter that can be extended by various external modules. The Q heat 5 US has two communication interfaces. 1. The IrDA interface accessible from outside. This allows parameters to be set for the Q heat 5 US on site at any time. 2. The module interface, which can be used to retrofit the heat meter for radio or other communication methods. The respective modules are simply mounted on the calculator unit. Measuring principle The flow sensor of the screw-type meter works according to the ultrasonic measuring principle. The water flow through the meter is measured using acoustic sensors. The low-maintenance design and lack of mechanically moving parts for the determination of exact volume flow are the key features of this measuring principle. Incorrect direction of flow is detected and indicated by an error message in the display. NOTE: Only use water without chemical additives as the medium for this device. Glycol additives are expressly not permitted. Determining water consumption Using the measured difference in temperature between supply and return flow, the flow rate and the calculated thermal coefficient, the heat quantity is shown on the LC display in physical units (kwh, MWh, MJ, GJ) following an internal calculation process. Storing the consumption values The heat consumption values are continually cumulated. The current status is stored at h on the due date. The due date is set with the aid of the two keys or a programming tool, December 31 is the default setting. Every time the current consumption and the annual consumption is saved, the heat meter calculates a checksum. This can be read out together with the due date value and checked in the billing program. This allows incorrect display readouts (e.g. switched digits ) to be detected. The stored due date value remains in place for one year. 9/20

10 Display Device states, display units and consumption values are shown via the LC display on several levels (up to 6). The heat meter is equipped with two keys that can be used to switch between the individual display steps and levels. The meter display is usually switched off and is only activated after a key has been pressed. The display is switched on briefly every 36 seconds to check the function (fast readout mode), and shows the current meter status, the meter status on the due date and an error message, if appropriate. Fast readout mode Standard loop (*) Meter status displays depend on the device configuration! Display off Current meter status heat (*) Current meter status cool Meter status heat on due date (*) Meter status cool on due date Error messages Error code Error date If a serious error occurs with the device, the error code and error date are displayed before the meter status. Incorrect direction of flow If the incorrect direction of flow is established, an error message appears on the display as shown. Overview of display levels L0 Current consumption values Standard levels L1 Annual consumption values L2 Current values L3 Parameters The levels coloured grey can all be switched off separately. L5 Monthly values heat L9 Maximum values Key for changing level Key for moving within a level 10/20

11 Display level L0 Current consumption values Displays the level Display test all on Display test all off Error number Error date This display only appears when a device error has occurred Current consumption values Current meter status Serial number Current date Checksum The displays coloured grey are optional or can be added and switched off as required Display level L1 Annual consumption values Displays the level Meter status on due date Serial number Current due date Checksum Annual consumption values The displays coloured grey are optional or can be added and switched off as required Key for changing level Key for moving within a level Alternating display 11/20

12 Display level L2 Current values Displays the level Current Flow Current Supply flow temperature (*) Air in the measuring section (*) The display "Air in the measuring section" replaces the "Current flow" display if air is detected in the measuring section. Current Return flow temperature Current Temperature difference Current thermal capacity Operating hours Cumulated volume High-resolution meter status heat Key for changing level Key for moving within a level Alternating display 12/20

13 Display level L3 Parameters Displays the level Date of next due date Identification Calibration Firmware version Calibration Check number Firmware version Fabrication number Possible + activated levels This example: Levels 2, 3 and 5 are shown 4 x space = levels 4, 6, 7 and 8 not available - = level 9 hidden Display level L5 Monthly values heat This level is only displayed when the device has been configured for heat metering. Displays the level Latest monthly value heat Date of monthly value Meter status monthly value Checksum Serial number Date of monthly value Meter status monthly value Checksum Serial number Oldest monthly value heat The displays coloured grey are optional or can be added and switched off as required Key for changing level Key for moving within a level Alternating display 13/20

14 Display level L9 Maximum values Displays the level Maximum values Supply flow temperature Highest temperature Date of highest temperature Duration of temperature above max. Maximum values Return flow temperature Maximum values Flow Greatest flow Date of greatest flow Duration of flow above nominal Error and status messages Error 01 Date error 01 Incorrect direction of flow Temporary message IrDA communication active Temporary message IrDA communication disabled (IrDA credits used up) Temporary message End of battery service life Static message, Symbol Battery flashing Current temperature difference negative (supply flow/return flow mixed up) Current flow available (no energy counting) Current flow available (energy counting) Key for changing level Key for moving within a level Alternating display 14/20

15 Parameter-setting possibilities With PC ~ ~ Next due date ~ ~ Password for close-range interface ~ ~ Display in kwh or MWh or MJ or GJ ~ ~ Selection of the levels to be displayed ~ ~ Display of the meter statuses with or without check number Only the wireless measuring devices additionally transmit status information several times a day the whole year round independently of the readout time set. Via keys ~ ~ Next due date ~ ~ Display in kwh or MWh or MJ or GJ ~ ~ Selection of the levels to be displayed ~ ~ Display of the meter statuses with or without check number 15/20

16 Pressure loss curves Complete heat meters 1000 Pressure loss Q heat 5 US Pressure loss (mbar) Nominal flow qp 1.5 m 3 /h = orange Nominal flow qp 2.5 m 3 /h = green Volume flow (l/h) 16/20

17 Technical data Norms and standards CE conformity Electromagnetic compatibility Interference resistance EN Emitted interference EN Protection rating see Declaration of Conformity IP protective rating Calculator unit / Flow sensor IP65 according to EN Heat meters European Measuring Instruments Directive (MID) EC type examination certificate Heat meters Model 2004/22/EC DE-14-MI004-PTB006 EN1434 HMRA-xxAx-xxx0 xxxxx Quality of heat medium VDI guideline 2035 Influencing quantities Electromagnetic class Mechanical class Environment class Precision class 3 E1 M2 A Calculator unit Temperature range as heat meter 20 C C permissible temperature difference start of metering temperature difference 3 K K 1.0 K Ambient temperature 5 C C Power supply Lithium battery Service life Display levels Nominal voltage 3.0 V > 6 (opt. 10) years + 6 months reserve Standard min. 2, up to 6 (depending on the version and options included) Display Energy display depending on device configuration kwh opt. MWh opt. MJ GJ 8-digit LCD + pictograms Display format: decimal with 1 decimal place Display format: decimal with 4 decimal places Display format: decimal with 1 decimal place Display format: decimal with 4 decimal places Temperature sensor Measuring element PT 1000 according to EN Version Diameter Type of installation Cable length Standard Optional Type DS 5.0 mm mm 5.0 mm - direct (ball valve) / indirect (immersion sleeve)* 5.2 mm - direct (ball valve) / indirect (immersion sleeve)* 1.5 m 3.0 m * Note national and country-specific regulations concerning the use of immersion sleeves. 17/20

18 Flow sensor Screw-type meter Connection sizes and dimensions 1.5 m³/h 2.5 m³/h Length 110 mm 130 mm Connection G ¾ B G 1 B Weight Calculator unit detachable 530 g 660 g Installation position any Nominal flow qp 1.5 m³/h 2.5 m³/h Minimum flow qi 15 l/h 25 l/h Maximum flow qs 3000 l/h 5000 l/h Start-up limit q l/h to 4.0 l/h 2.5 l/h to 6.5 l/h Max. permissible operating pressure Min. system pressure to avoid cavitation (cavity formation) 16 bar 1 bar Temperature range 20 C C Dynamic range 1:100 18/20

19 Dimensional drawings Installation length 110 mm - 3/4 inch thread 101, G 3/4 A G 3/4 A 64,8 52,1 Installation length 130 mm - 1 inch thread G 1 A G 1 A 64,8 68,8 52,1 19/20

20 QUNDIS GmbH Sonnentor Erfurt / Germany Phone: Fax: info@qundis.com 20/20 The information in this data sheet only contains general descriptions or product characteristics, which may not always apply in particular application cases and/or may be subject to change through further development of the product. Required product characteristics are then binding if they are expressly agreed when the contract is drawn up QUNDIS GmbH. Subject to change