DE202006014631U1 - Water flow meter testing device for use in laboratory, has measured value processing device with central part that is one computer with programming unit to compute measuring error from comparison between preset volume and determined volume - Google Patents

Abstract

The device has a measuring container (9) attached to a weighing platform of a scale, and a supply pipeline attached at edges of the container. The pipeline is connected with a control valve that is energized by control electronics, and volume of water flowing into the container is determined from the weight measured by the scale, during preset flow rate measuring time. A central part of a measured value processing device (41) is a computer (24) with a programming unit that computes measuring error of the meter from a comparison between a preset volume and the determined volume of the meter.

Description

The The invention relates to a device for testing a water meter.

It is known to be water meter expanded and tested in the laboratory which poses a problem in that the installation conditions not considered locally and thus the determined volume values of the determined Volume values of the to be tested water meter may vary significantly.

One of the installation conditions taken into account measuring device for testing water meters is in the document DE 197 17 128 A1 described, the centerpiece of which is a fixed volume pump which operates by means of pulse tap on the consumption meter to be tested and by means of a control unit for adjusting the flow of the medium flowing through the consumption meter. Thus, predetermined test points are constantly adjustable and it can be recorded with a defined test volume of the pump, a measurement deviation curve, which is taken into account in the calculation of the measured volume. That is very expensive.

Other in the form of a test case Contain trained devices for testing water meters a permanently installed comparison counter. In it are an impeller counter and a series-connected blind housing exists in the one to be tested Measuring capsule can be used. Adapter pieces for connection to the tap are as accessories present, with the pompator are time-consuming unscrewed got to. An inlet and an outlet for the hose connection are attached to the front of the case. Before using must the comparison counter allärdings a test bench time consuming be calibrated. The measurement deviations are used as correction values added.

One Problem is that the comparison counter as reference devices error limits have the same as those of the water meter can correspond and thus are ultimately inaccurate.

One Another problem of said devices is that the start of the water meter can not be determined exactly.

Of the Invention is based on the object, a device for testing water meters to be given, which is designed so suitable that over a Determination of parameters made a statement about the condition and quality of the tested water meter can be. In addition, should guaranteed be that measuring error of water meters when installed can be determined much more accurately.

The object of the invention is solved by the features of the protection claim 1. The apparatus for testing water meters consists of a removable upper panel, a lower part and a removable lower panel and includes a measuring device and a measured value processing device, wherein the upper panel is hinged and releasably attached to the lower part by hinges,
in which
the central part of the measuring device is a scale whose scale platform is installed on a menu of the lower part, wherein the balance can be calibrated with a control weight present in the lower part, wherein on the scale platform a measuring container can be placed, one attachable over the edge of the measuring container, from Measuring tank separate, curved inlet pipe is present as an extended connection line to the water meter above the measuring container ending, the inlet pipe has a delimitation normal with sight line and the input side with a control valve, which is operated by a connected control electronics, connected, wherein the control electronics a thermometer for temperature detection of Water is associated with signaling technology, wherein at a predetermined flow measuring time, the volume of the water flowing into the measuring container can be determined from the weight measured by means of the balance, and wherein the central part of the measuring value processing device is a computer, which is provided with program-technical means with which the measurement error of the water meter can be calculated from the comparison between the determined volume and the determined volume of the water meter.

Of the Computer contains a watertight temperature distribution or table is stored and can be integrated in the lid or in the lower part or else to an interface on the menu connectable be.

in the Area of the menu of the lower part are a leveling device with at least one Adjustment device for the horizontal orientation of the measuring device or the device and a display and a control terminal arranged.

A associated Energy supply for all electronic and electrical components and components is independent installed by the mains by means of a rechargeable accumulator.

A thermometer is provided in the measuring device, with which the temperature of the water is detected, preferably an infrared Able sung and a signaling connection to the control electronics can exist.

For a tap is on a designated line of the water meter a connection adapter to Connection of the measuring device provided.

The Control weight is used in conjunction with the adjustment device for Calibration of the balance.

The Sighting line serves to control the air bubble portion of the water flowing through and has a demarcation standard, which serves to control the inflow of water in the measuring container at a defined point within the sight distance breaks off.

Of the measuring Cup is dimensioned so that it is directed downwards with its opening at the same time as a cover of the balance and generally as a transport lock can serve.

The Measured value processing device has next to the computer optionally one the volume meter reading of the water meter scanning reader on.

Of the Adapter and other connecting elements for connecting the measuring device to the to be tested water meter are in the installed state integrated components of the measured value processing device, to the still the computer as well as further supply and signal lines belong.

Of the measuring Cup can carry a thermal insulation layer, thereby reducing the measurement and the exam also with water of different temperature (hot, cold) carried out can be.

On the menu can have a Be attached to a series of buttons, in particular a vent button, a "START" button, a "STOP" button, a measuring time button adjuster and a button "TARA".

The Menu of the Bottom parts may be in the area of the display for better operation and View bevelled forward be educated.

In leading the lower part a water connection is attached laterally, the downstream of the control valve is, wherein subsequently the feed pipe is connected, wherein immediately after the control valve two hinges located, so that the supply pipe movable, on the one hand erectable and on the other hand can be inserted into a recess of the menu.

The Inlet pipe can be formed arcuately in its free end be so that their inlet ends in the erected state of the supply pipe above the measuring Cup is arranged.

The over the Charging socket rechargeable battery provides the power supply of the Measuring device, with an on / off switch the circuit for the balance with the connected operating terminal and the display, for a timer device (English timer) for setting the measuring time of the water flow and for the magnetically switchable control valve operates, being in front of the entrance in the circuit for operating the balance switched a voltage converter is, wherein the timer device with both the measuring time setting as is also connected to the "START" button and the "STOP" button and the belonging to the circuit vent button is in direct communication with the control valve. The filling of the measuring container can over it the control electronics are started and stopped.

The Elimination of defects of the prior art is achieved with the device according to the invention, with the water meter checked in installed condition and that it passed through the examinee Weighed water at defined flow rates and considering the water temperature the volume is determined, which with the volume counter displays of the tested water meter is compared at the beginning and at the end of the measurement.

Of the Advantage of the device according to the invention is also that the measurement error of water meters in built-in state with an accuracy of <1 can be determined.

The Invention is based on an embodiment explained by means of several drawings:

It demonstrate:

1 an illustration of the device according to the invention in the open operating state,

2 a representation of the device in the open transport state after 1 .

3 a representation of the device in front view,

4 a representation of the device in plan view,

5 a hydraulic scheme of the device and

6 a part of an electrical scheme within the device.

The following are the 1 and 2 considered together.

In 1 is a device 1 to check a water meter 6 shown, which is designed as a suitcase and open in the operating state. The 2 shows a representation of the device in the open transport state.

The device 1 consists of a removable lid 16 as upper cladding, a lower part 2 and a removable floor 3 as a lower panel and contains a measuring device 23 and a measured value processing device 41 , where the lid 16 by hinges on the lower part 2 hinged and also releasably attached, wherein
the central part of the measuring device 23 a balance 10 is whose balance platform 18 on a menu 21 of the lower part 2 is installed, the balance 10 with one in the lower part 2 existing control weight 14 calibrated, being on the scale platform 18 a measuring container 9 can be placed, with one over the edge of the measuring container 9 attachable, from the measuring tank 9 separate, curved inlet pipe 19 as an extended connecting cable to the water meter 6 above the measuring container 9 ending exists, wherein the feed pipe 19 a demarcation standard with visual range 8th has and input side with a control valve 31 that by a connected control electronics 11 is actuated, is connected, wherein the control electronics 11 a thermometer 13 associated with the temperature detection of the water signal technically, wherein at a predetermined flow measuring time, the volume of the measuring container 9 flowed water from the means of the balance 10 measured weight is determinable, and
the central part of the measured value processing device 41 a computer 24 which is provided with programming means with which from the comparison between the determined volume and the determined volume of the water meter 6 the measuring error of the water meter 6 is calculable.

The computer 24 can to one on the menu 21 located interface 15 be connectable and contains a water-temperature distribution or table stored to determine the volume in the measuring container 9 serves.

Additionally, in the area of the menu 21 of the lower part 2 at least one leveling device 4 and an adjusting device 5 for a horizontal alignment of the measuring device 23 or the device 1 and an ad 17 and an operator terminal 30 be arranged.

The associated power supply for all electronic and electrical components and components takes place independently of the network by means of a rechargeable accumulator 12 ,

With the thermometer 13 the temperature of the water is detected.

The measured value processing device 41 can be next to the computer 24 optionally one of the volume counter readings of the water meter 6 scanning reading device 42 exhibit.

For a tap on a dedicated line of the water meter 9 can go to the device 1 belonging to a connection adapter 7 be provided to easily the measuring device 23 to be able to connect.

The adjusting device 5 is with the scales 10 and the control weight 14 Correspondingly connected and thus allows monitoring of the accuracy of the setting of the balance 10 ,

The sight line 8th is used to control the air bubble content of the water flowing through and has a demarcation standard, which serves to ensure that the water flow into the measuring tank 9 at a defined point within the line of sight 8th interrupted.

The measuring container 9 also serves as a cover for the balance 10 and transport security.

The adapter 7 and connecting elements - eg a hose line 36 - for connection of the measuring device 23 to the water meter to be tested 6 when installed are integrated components of the measured value processing device 41 to which still the computer 24 and other supply and signal lines. The programmatic means of the computer 24 essentially concern besides the calculation of the measuring error of the water meter 6 also the flow.

The measuring container 9 Can carry a thermal insulation layer, whereby the measurement and the test can be carried out with hot water.

Between the ground 3 and the lower part 2 There may be recesses in which the hoses are located 36 leading to the connection between the tap 37 and the water connection 22 are provided.

While in 1 the device 1 is shown in the open operating state is in 2 the menu 21 of the lower part 2 indicated in the transport state. On the menu 21 Furthermore, a number of buttons are attached: a vent button 25 , a button "START" 27 , a button "STOP" 26 , a measuring time adjuster 28 , a button "TARA" 29 ,

In 3 is a schematic representation in front view of the essential components of the measuring device 23 in the operating state, ie in the Connection state on site in the area of the water meter 6 shown, with the menu 21 of the lower part 2 in the area of the ad 17 is formed sloping forward. In the lower part 2 The leader is the side of the water connection 22 attached to the control valve 31 is downstream, wherein subsequently the inlet pipe 19 connected. Immediately after the control valve 31 There are two hinges 32 and 33 , so that the inlet pipe 19 both in a recess 34 of the lower part 2 can be inserted as well as from this position is erectable.

The inlet pipe 19 is arc-shaped in its end, so that the inlet end 20 in the erected state of the supply pipe 19 above the measuring tank 9 is arranged.

The Libra 10 is located in the lower part 2 , being on the above scale platform 18 the measuring container 9 is placed. The ad 17 is with the scales 10 and with the adjacent control electronics 11 electrically connected.

In 4 is a schematic representation of the measuring device 23 shown in plan view.

Here is the inlet pipe 19 by means of the hinges 32 . 33 pivoted and in the lower part 2 incorporated recess 34 brought in. The ad 17 in the front part of the menu 21 is located in an operator terminal 30 , The connection adapter 7 can range in addition to control weight 14 and the leveling device 4 be filed. The measuring container 9 is in the transport state with its opening facing down over the scale 10 slipped.

In 5 is the hydraulic scheme of the measuring device 23 shown. To the water meter 6 is the outlet valve 37 connected with a hose line 36 to the water connection 22 is guided. After the magnetically switchable control valve 31 the pipeline route runs to the inlet pipeline 19 and about the demarcation standard with line of sight 8th to the entry end 20 , The inlet end 20 is located above the measuring container 9 , To the menu 21 also include the "START" button 27 , the button "STOP" 26 and the vent button 25 ,

In 6 is part of the electrical scheme of the measuring device 23 shown. The over the charging socket 35 rechargeable accumulator 12 provides the power supply of the measuring device 23 for sure. Via a power button 39 becomes the circuit for the balance 10 with the connected operating terminal 30 and the ad 17 , for the timer device 40 (English timer) for setting the measuring time of the water flow and for the magnetically switchable control valve 31 served. Before flowing and for the magnetically switchable control valve 31 served. In front of the entrance to the circuit to operate the balance 10 is a voltage transformer 38 connected. The timer device 40 is both with the measuring time setting switch 28 as well as with the button "START" 27 and the button "STOP" 26 as well as with the control valve 31 connected. The vent button 25 stands with the control valve 31 in direct connection.

The control electronics 11 is in connection with the ad 17 , the time switch device 40 and the interface 15 designed so that all readings in the connected computer 24 can be taken, including from the computer 24 all other settings and switching functions for measurement and testing can be made by associated further program-technical means.

The functioning of the device according to the invention is described below 1 explained in more detail:
About the water meter 6 and subsequently via the connection adapter 7 the water reaches the demarcation standard with sight line 8th in the measuring container 9 on a balance 10 with an ad 17 and an operator terminal 30 stands. The control electronics 11 with the connected control valve 31 opens and closes the control valve 31 after preselected and set measuring times.

The operation of the measuring device according to the invention 23 is based on weighing one through the water meter to be tested 6 at a defined flow rate of water and on the calculation of the volume from this amount taking into account the temperature-dependent water density.

From the calculated water volume value of the measuring tank 9 and from the water meter to be tested 6 the meter reading volume values at the beginning and at the end of the measurement - the difference is the calculated volume value of the water meter 6 - is the measurement error of the water meter to be tested 6 calculated.

• 1. Abnehmen der unteren Verkleidung – des Bodens 3 -,
• 2. Abrollen des Anschlussschlauches 36,
• 3. Aufbau der Vorrichtung 1 auf einer ebenen Fläche in der Nähe der Zapfstelle 37 mit einem Auslaufventil,
• 4. Überprüfung, ob alle anderen Zapfstellen geschlossen und im Rohrleitungssystem keine Leckagen sind, wobei alle anderen Anzeigen des Wasserzählers 6 dabei stillstehen müssen,
• 5. Waagerechtes Einrichten der Vorrichtung 1 mittels der Nivelliereinrichtung 4 und der Justiervorrichtung 5,
• 6. Entnahme des Messbehälters 9 und Abstellen desselben auf der Waageplattform 18,
• 7. Aufrichten des Zulaufrohrleitung 19 und Einrichten des zugehörigen Einlaufendes 20, damit das Wasser in den Messbehälter 9 fließt, wobei sich der Messbehälter 9 und die Zulaufrohrleitung 19 nicht berühren dürfen,
• 8. Öffnen der Zapfstelle 37 und Überprüfen der Zulaufrohrleitung 19 auf Dichtheit,
• 9. Durch Betätigen des Entlüftungstasters 25 wird entlüftet, und am Schauglas der Sichtstrecke 8 entstehende Wasserblasen werden beobachtet. Wenn keine Blasen mehr sichtbar sind, wird der Entlüftungstaster 25 erneut betätigt und dann der Messbehälter 9 entleert.

The following individual processes are carried out in associated phases:
In a preparatory phase, the following is done:

• 1. Removal of the bottom panel - the floor 3 -
• 2. Unroll the connection hose 36 .
• 3. Construction of the device 1 on a flat surface near the tap 37 with an outlet valve,
• 4. Verify that all other taps are closed and there are no leaks in the piping system, with all other indicators of the water meter 6 have to rest while
• 5. Horizontal setting up of the device 1 With the leveling device 4 and the adjusting device 5 .
• 6. Removal of the measuring container 9 and parking it on the scale platform 18 .
• 7. Erecting the supply pipe 19 and setting up the associated inlet end 20 , so that the water in the measuring tank 9 flows, with the measuring container 9 and the inlet pipe 19 not allowed to touch
• 8. Opening the tap 37 and checking the feed pipe 19 on tightness,
• 9. By pressing the vent button 25 is vented, and at sight glass sight line 8th resulting water bubbles are observed. If bubbles are no longer visible, the vent button will turn off 25 pressed again and then the measuring container 9 emptied.

• 1. Auslaufventil an der Zapfstelle 37 öffnen bis zu dem Zeitpunkt, an dem der Wasserzähler 6 zu zählen beginnt,
• 2. Ablauf der Prüfung: – Eingabe/Übernahme des aktuellen Volumen-Zählerstandes des Wasserzählers 6 in den Computer 24, – Messzeit einstellen, – Messbehälter 9 entleeren, wieder auf die Waage 10 stellen, ausrichten und Tara ermitteln, – Taster „START" 27 betätigen, – Befüllung des Messbehälters 9, – nach automatischem Abschalten des Wasserdurchflusses Temperatur des Wassers messen, – Eingabe/Übernahme des finalen Volumen-Zählerstandes des Wasserzählers 6 in den Computer 24, – das durch die Zulaufrohrleitung 19 durchgeflossene Wasservolumen berechnen, – Messfehler berechnen.

In the phase of determining the start-up, which, by definition, represents the flow rate at which the starter or pointer of the counter is located on the smallest display unit of the water meter 6 begins to move, the following steps are completed:

• 1. outlet valve at the tap 37 open until the time when the water meter 6 begins to count
• 2. Procedure of the test: - Entry / acceptance of the current volume counter reading of the water meter 6 in the computer 24 , - Set measuring time, - Measuring tank 9 empty, again on the scales 10 set, align and determine tare, - "START" button 27 press, - filling the measuring tank 9 - after automatically switching off the water flow, measure the temperature of the water, - entering / taking over the final volume reading of the water meter 6 in the computer 24 , - through the inlet pipe 19 Calculate the volume of water that has flowed through, - Calculate measurement errors.

• – einen definierten Durchfluss einregulieren,
• – Messzeit mittels Messzeiteinstelltaster 28 wählen,
• – Taster „TARA" 29 an der Waage 10 betätigen und abwarten, bis das Messbehältergewicht ermittelt wird und die Anzeige 17 „0" anzeigt,
• – Taster „START" 27 betätigen,
• – Befüllung des Messbehälters 9,
• – nach dem automatischen Abschalten aus der Messzeit und der gewogenen Wassermenge sowie der gemessenen Wassertemperatur wird der Durchfluss berechnet.

In the phase of determining the flow, the steps are carried out:

• - adjust a defined flow,
• - Measuring time by means of measuring time setting button 28 choose,
• - Button "TARA" 29 on the scales 10 Press and wait until the weight of the measuring container is determined and the display 17 Indicates "0"
• - "START" button 27 actuate,
• - Filling the measuring tank 9 .
• - after the automatic shutdown of the measuring time and the weighed water quantity as well as the measured water temperature the flow is calculated.

• – Eingabe/Übername des aktuellen Volumen-Zählerstandes des Wasserzählers 6 in den Computer 24,
• – Messzeit einstellen,
• – Messbehälter 9 entleeren, wieder auf die Waage 10 stellen, ausrichten, Taster „TARA" 29 an der Waage 10 betätigen und abwarten, bis das Messbehältergewicht ermittelt wird und die Anzeige 17 „0" anzeigt,
• – Taster „START" 27 betätigen,
• – Befüllung des Messbehälters 9,
• – nach automatischem Abschalten des Wasserdurchflusses Messung der Temperatur des Wassers mittels Thermometer 13 durchführen,
• – Eingabe/Übernahme des finalen Volumen-Zählerstandes des Wasserzählers 6 in den Computer 24,
• – durch die Zulaufrohrleitung 19 durchgeflossenes Wasservolumen berechnen,
• – Messfehler des Wasserzählers 6 berechnen.

In the phase of calculating the measurement error, the following steps are performed:

• - Input / name of the current volume counter reading of the water meter 6 in the computer 24 .
• - set measurement time,
• - Measuring container 9 empty, again on the scales 10 set, align, button "TARA" 29 on the scales 10 Press and wait until the weight of the measuring container is determined and the display 17 Indicates "0"
• - "START" button 27 actuate,
• - Filling the measuring tank 9 .
• - after automatic shutdown of the water flow. Measurement of the temperature of the water by means of a thermometer 13 carry out,
• - Entry / acceptance of the final volume meter reading of the water meter 6 in the computer 24 .
• - through the inlet pipe 19 calculate the volume of water flowed through,
• - Measuring error of the water meter 6 to calculate.

The invention allows the water meter 6 in the installed state and thus can be tested on site.

The invention opens up the possibility that with the specified device and the start, starting at zero of the count of the water meter 6 , and essentially the associated measurement error of the water meter 6 determines and thus an exact statement to the qualitative condition of the water meter 6 can be taken.

1

contraption

2

lower part

3

ground

4

leveling

5

adjusting

6

water meter

7

connection adapter

8th

demarcation normal with sight line

9

measuring Cup

10

Libra

11

control electronics

12

accumulator

13

thermometer

14

weight control

15

interface

16

cover

17

display

18

scale platform

19

Inlet pipe

20

incoming

21

menu

22

mains water supply

23

measuring device

24

computer

25

vent button

26

Button "STOP"

27

Button "START"

28

Messzeiteinstelltaster

29

Tastes "TARA"

30

operating terminal

31

control valve

32

first Drehseharnier

33

second rotary hinge

34

recess

35

charging socket

36

hose

37

tap

38

DC converter

39

On / Off button

40

Time switch means

41

Measured value processing device

42

reader

Claims (18)

Contraption ( 1 ) for checking water meters ( 6 ), consisting of a removable top panel ( 16 ), a lower part ( 2 ) and a removable lower panel ( 3 ) and containing a measuring device ( 23 ) and a measured value processing device ( 41 ), with the upper panel ( 16 ) by hinges on the lower part ( 2 ) is hinged and releasably secured, wherein the central part of the measuring device ( 23 ) a scale ( 10 ) whose scale platform ( 18 ) on a menu ( 21 ) of the lower part ( 2 ), whereby the balance ( 10 ) with one in the lower part ( 2 ) existing control weight ( 14 ) is calibratable, wherein on the scale platform ( 18 ) a measuring container ( 9 ), whereby one over the edge of the measuring container ( 9 ) attachable, from the measuring container ( 9 ) separate, curved inlet pipe ( 19 ) as an extended connecting line to the water meter ( 6 ) above the measuring container ( 9 ) is present, wherein the feed pipe ( 19 ) a demarcation standard with line of sight ( 8th ) and on the input side with a control valve which is connected by a connected control electronics ( 11 ), is connected, wherein the control electronics ( 11 ) a thermometer ( 13 ) is assigned to the temperature detection of the water signal technically, wherein at a predetermined flow measuring time, the volume of the in the measuring container ( 9 ) from the water by means of the balance ( 10 ) measured weight, and the central part of the measured value processing device ( 41 ) a computer ( 24 ) provided with programming means for comparing the volume determined and the volume of the water meter ( 6 ) the measuring error of the water meter ( 6 ) is calculable. Apparatus according to claim 1, characterized in that a device-internal computer ( 24 ) or the computer ( 24 ) to one on the menu ( 21 ) interface ( 15 ), whereby the computer ( 24 ) contains a water-temperature-temperature distribution or water-temperature table. Device according to claim 1 or 2, characterized in that in the region of the menu ( 21 ) of the lower part ( 2 ) a leveling device ( 4 ) with at least one adjusting device ( 5 ) for a horizontal orientation of the measuring device ( 23 ) or the device ( 1 ) as well as an advertisement ( 17 ) and an operator terminal ( 30 ) are arranged. Apparatus according to claim 1 to 3, characterized in that an associated power supply for all electronic and electrical assemblies and components independently of the network by means of a rechargeable accumulator ( 12 ) is installed. Device according to claims 1 to 4, characterized in that a thermometer ( 13 ) to the measuring device ( 23 ), with which the temperature of the water is detected. Apparatus according to claim 1 to 5, characterized in that the measured value processing device ( 41 ) next to the computer ( 24 ) optionally one of the volume counter readings of the water meter ( 6 ) scanning reading device ( 42 ), wherein the programmatic means of the computer ( 24 ) preferably relate to the calculation of the flow and the measurement error of the water meter. Device according to one of the preceding claims, characterized in that for a tapping point ( 37 ) on a dedicated line of the water meter ( 9 ) a connection adapter ( 7 ) for connecting the measuring device ( 23 ) is provided. Device according to any preceding claim, characterized in that the adjusting device ( 5 ) with the balance ( 10 ) and the control weight ( 14 ) and a monitoring of the accuracy of the adjustment of the balance ( 10 ). Device according to one of the preceding claims, characterized in that the sighting line ( 8th ) serves to control the proportion of air bubbles in the water flowing through and has a demarcation standard which serves to ensure that the water flow into the measuring tank ( 9 ) at a defined location within the line of sight ( 8th ) breaks off. Device according to any preceding claim, characterized in that the measuring container ( 9 ) with its opening directed downwards at the same time as a cover of the balance ( 10 ) and serves as a transport lock. Device according to any preceding claim, characterized in that the adapter ( 7 ) and other connecting elements for connecting the measuring device ( 23 ) to the water meter to be tested ( 6 ) in the built-in to stand integrated components of the measured value processing device ( 41 ) next to the computer ( 24 ) further supply and signal lines belong. Device according to any preceding claim, characterized in that the measuring container ( 9 ) carries a thermal insulation layer, whereby the measurement and the test can be carried out with water of different temperature. Device according to any preceding claim, characterized in that on the menu ( 21 ) a number of buttons are mounted: in particular a vent button ( 25 ), a "START" button ( 27 ), a "STOP" button ( 26 ), a measurement time adjuster ( 28 ) and a button "TARA" ( 29 ). Device according to any preceding claim, characterized in that the menu ( 21 ) of the lower part ( 2 ) in the area of the display ( 17 ) is beveled forward. Device according to any preceding claim, characterized in that in the lower part ( 2 ) leading laterally a water connection ( 22 ), to which the control valve ( 31 ) is arranged downstream, wherein subsequently the feed pipe ( 19 ) is connected, with immediately after the control valve ( 31 ) two hinges ( 32 ) and ( 33 ), so that the feed pipeline ( 19 ) both into a recess ( 34 ) of the menu ( 21 ) and for filling the measuring container ( 9 ) is erectile. Device according to one of the preceding claims, characterized in that the inlet pipeline ( 19 ) is arc-shaped in its free end region, so that its inlet end ( 20 ) in the erected state of the supply pipe ( 19 ) above the measuring container ( 9 ) is arranged. Device according to any preceding claim, characterized in that between the ground ( 3 ) and the lower part ( 2 ) Recesses are present, in which connection hose lines, the connection between the tapping point ( 37 ) and the water connection ( 22 ) are provided. Device according to one of the preceding claims, characterized in that via the charging socket ( 35 ) rechargeable battery ( 7 ) the power supply of the measuring device ( 23 ), wherein an on / off button ( 39 ) the circuit for the balance ( 10 ) with the connected operator terminal ( 30 ) and the display ( 17 ), for a timer device ( 40 ) (timer) for setting the measuring time of the water flow and for the magnetically switchable control valve ( 31 ), whereby in front of the entrance into the circuit for operating the balance ( 10 ) a voltage converter ( 38 ), wherein the timer device ( 40 ) both with the measuring time setting switch ( 28 ) as well as with the "START" button ( 27 ) and the "STOP" button ( 26 ) and the circuit breaker ( 25 ) with the control valve ( 31 ) is in direct connection. For this six sheets of drawings