Decree of the Ministry of Industry and Trade No. 21 / 2001 Coll.
Decree of the Ministry of Industry and Trade laying down requirements for flow meters for liquids other than water marked with EEC mark and for additional devices for such flow meters
Valid
Order
Effective from 21.04.2004
21
DECLARATION
Ministry of Industry and Trade
of 13 December 2000
laying down requirements for flow meters for liquids other than water marked with the EEC mark and for additional devices for such flow meters
The Ministry of Industry and Trade provides pursuant to § 27 of Act No. 505 / 1990 Coll., on Metrology, as amended by Act No. 119 / 2000 Coll., ("the Act ') for the implementation of § 6 (2) of the Act:
This decree sets out requirements for volumetric flow meters for liquids other than water in which the fluid causes the motion of the moving walls of the measuring chambers and which allow the measurement of any volumes. The volume flow meter for liquids other than water is a device consisting of a measuring device and an indicator device. The decree also lays down requirements for additional flow-meter devices for liquids other than water which are considered to be zero-capacity devices for volume counters, add-on capacity counters, multipointer capacity counters and multiple counters, price indicators, printing equipment and pre-selection devices.
Volumetric flow meters for liquids other than water may be marked with the EEC type-approval mark and the EEC initial verification mark for liquids other than water, only if they meet the requirements laid down in Annex 1 to this Regulation and the fulfilment of which has been verified by the procedures laid down in the specific legislation.2) Additional flow meters for liquids other than water may be marked with the EEC type-approval mark and the initial EEC verification mark for liquids other than water, instead of the official marks laid down by the separate legislation1) only if they comply with the requirements laid down in Annex 2 to this Regulation and the fulfilment of which has been verified by the procedures laid down in the specific legislation.2)
This Regulation shall enter into force on the day of the publication of the sectoral annex to the Protocol to the Europe Agreement establishing an association between the Czech Republic, of the one part, and the European Communities and their Member States, of the other part, on conformity assessment and acceptance of industrial products in the Collection of International Treaties, or on the date of the entry into force of the Treaty of Accession of the Czech Republic to the European Union, if that date is earlier.
Minister:
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Příloha č. 1
Annex No 1 to Decree No 21 / 2001 Coll.
Requirements for flow meters for liquids other than water
TECHNICAL CONDITIONS FOR CAPITAL TRANSPORT CONDITIONS OTHER THAN WATER
1. DEFINITIONS
1.1 The smallest measurement means the smallest volume of liquid that can be measured by a specific type of measuring device.
1.2 Cyclic volume means the volume of liquid corresponding to the operating cycle of the measuring device, i.e. the sum of movements at which all internal moving components of the measuring device return for the first time to their initial positions.
1.3 Periodical deviation means the maximum difference over a single working cycle between the volume of moving components and the corresponding volume displayed on the indicator device, which is connected to the measuring instrument without free will, by showing at the end of the cycle and over that cycle a volume equal to the cyclic volume. This difference may be reduced by an appropriate calibration device.
1.4 Justice is an activity consisting of putting a measuring instrument into a state suitable for its use.
1.5 A control device is a part of a measuring instrument which can be adjusted appropriately to measure correctly.
2. COMPUTER
2.1 The measuring instruments shall be fitted with a counter showing the measured volume in cm3 or mm3, dm3 or l or m3.
2.2 If the counter has one or more elements, the scale of which is marked by minimum sections is called the "first element."
2.3 The transmission between the counter and the measuring device shall be reliable, durable and mediated by mechanical coupling or permanent magnet devices.
2.4. Data reading must be reliable, easy and unambiguous. If the counter consists of several elements, it shall be constructed as a whole in such a way that the reading of the data can be done by simply comparing the data from different elements.
2.5 The maximum capacity of the counter shall be 1 x 10n, 2 x 10n or 5 x 10n of valid volume units, with n being a positive or negative number or zero.
2.6 The movement of the element can be either continuous (continuous) or discontinuous (interrupted - after jumps).
2.7 If the moving component of the element has continuous movement, the scale division and the zero mark shall enable the measured quantity to be determined for each position in which the element could stop.
2.8 The value of the scale sections on the first element shall be 1 x 10n, 2 x 10n or 5 x 10n of valid volume units.
2.9 With the exception of an element which corresponds to the maximum counter capacity, one rotation of the element shall correspond to the value of 10n of the valid units of volume, if the scale division on that element is fully visible.
2.10 If the element is folded from a fixed circular scale and a rotating indicator, the indicator shall be rotated in the clockwise direction.
2.11. On a counter with several elements, each rotation of the moving part of the elements whose scale is fully visible shall correspond to the value of the scale element of the following element.
2.12 On an indicator device with several elements, the item with an uncontinuous movement shall be moved by one digit in addition to the first element, while the previous elements shall not move by more than one tenth of their rotation. This forward movement must stop when the previous element shows zero.
2.13 If the counter has several elements and only part of the scale of the second element and of the following elements is visible in the windows, the movement of the other elements must be interrupted so that the whole part of the relevant element is visible in the window. The movement of the first element can be continuous or discontinuous.
2.14. If the figure is given by figures in the line and the movement of the first element is discontinuous, the marking of one or more fixed zeros to the right of that element is permitted.
2.15. If only a part of the scale of the first element is visible in the window and if this element has continuous movement, the resulting reading ambiguity may occur, which should be removed. For this reason, and in order to allow interpolation reading, the corresponding window shall not have a dimension less than 1,5 times the distance between the centre lines of two consecutive scale division marks, so that at least two scale division marks are always visible, one of which shall have a digit. The window can be asymmetric relative to the zero mark.
2.16 The marks on the scales shall be of the same width, constant throughout the length of the mark, which shall not exceed a quarter of the distance between the centre lines of the two consecutive marks. Marks corresponding to values 1 x 10n, 2 x 10n or 5 x 10n valid units are to be distinguished only by the difference in their lengths.
2.17 The distance between axes of two consecutive scale division marks shall not be less than 2 millimetres.
2.18 The height of the digits shall not be less than 4 millimetres.
3. ORDER EQUIPMENT
3.1 The measuring instruments shall have a juicing device which may alter the relationship between the declared and actual volumes of liquid passing through the measuring instrument.
3.2 If the juicing device changes this relationship incontinuously, the consecutive increments of this relationship shall never differ by more than 0,002 of the nominal flow value.
3.3 Modifications on the gauge allowing the bypass are prohibited.
4. SPECIFIC CONDITIONS RELATING TO THE MOST MENTIONING
4.1 The smallest measurement shall be such that none of the following values is greater than the maximum permissible error for such a measurement, as explicitly stated in points 10.2 and 10.3:
(a) the volume corresponding to the movement of two millimetres on the scale of the first element of the counter and one fifth of the value of the piece on the scale if the first element has continuous movement;
(b) the volume corresponding to two consecutive movements of digits, if the first element has a discontinuous movement;
(c) an error which, under normal conditions, is caused by the clearance or shift on the drive between the measuring device and the first element of the counter;
(d) twice the periodic deviation.
4.2 When determining this minimum margin, account shall also be taken, where appropriate, of the operation of the additional components on the measuring device, in accordance with the requirements laid down in the Decree concerning that measuring device.
4.3 The smallest measurement shall be 1 x 10n, 2 x 10n or 5 x 10n of valid units, where n is the whole positive or negative number or zero.
5. MAXIMAL AND MINIMUM TRANSPORT
5.1 The maximum and minimum flow rates are specified in the type approval certificate of the measuring instrument in accordance with the results obtained during testing. The gauge shall be able to operate for a certain period specified in the EEC gauge type-approval certificate at the maximum flow rate without showing changes in its measuring characteristics.
5.2. The ratio between maximum and minimum flow rates shall be 10 for measuring instruments in general and 5 for liquefied gas meters.
6. THE INFLUENCE OF CAPITAL, TEMPERATURE AND PRESSURE
6.1. The type-approval certificate for a measuring instrument shall indicate the liquid or the liquid for which the measuring instrument is intended, the temperature limits for the liquid to be measured if those limits are below - 10 ° C and above + 50 ° C, as well as the maximum working pressure.
6.2 The tests carried out for the purpose of type-approval of a measuring instrument shall show that the errors of the measuring instrument, caused by the maximum deviations in the characteristics of liquids, pressure and temperature of the liquid, within the limits to be specified in the type-approval certificate of the measuring instrument do not exceed for each of these factors half of the values set out in points 10.1, 10.2 and 10.3.
7. MAXIMAL IMPORTED HAIR ON PERSONAL MEASUREMENT
7.1 If the initial verification of the measuring instrument is preceded by the juicing of the measuring instrument itself within the meaning of Article 3, the maximum permissible errors at the time of this examination shall be equal to half of the maximum permissible errors referred to in points 10.1, 10.2 and 10.3, but not less than 0,3% of the measured quantity when the same liquid for which the measuring instrument is intended is used.
7.2 However, if the accuracy of the measurements is not sufficient to apply this requirement, maximum permissible errors may be increased in the type-approval certificate of the gauge within the limits specified in points 10.1, 10.2 and 10.3.
7.3 The type-approval certificate of a measuring instrument may reduce or amend the maximum permissible errors, in cases where the examination is carried out only by one of the possible liquids or liquids different. In the second case (i.e. if the liquid used in the verification is different from the liquid, for the measuring instrument below), flow rates during the test may be indicated in the type approval certificate which differ from the flow rates between the maximum and the minimum flow rates.
8. TAPS
8.1 Each gauge shall bear the following information in legible and indelible form either on the counter code list or on a separate label:
(a) the EEC type-approval mark;
(b) the identification mark or name of the manufacturer;
(c) any other type designation from the manufacturer;
(d) the serial number of the measuring instrument and the year of manufacture;
(e) cyclical volume;
(f) maximum and minimum flow rates;
(g) maximum working pressure;
(h) temperature range if the liquid is to be measured at below - 10 ° C and above + 50 ° C;
(i) the type of liquid or liquids to be measured and the limits of viscosity, kinematic or dynamic, where it is not sufficient to determine their viscosity simply to indicate the type of liquid.
8.2 The following particulars shall be visible on the counter:
(a) the unit in which the measured volumes are expressed or the mark of that unit;
(b) the smallest measurement.
8.3 Where the direction of movement of the liquid is not clearly apparent, the direction shall be marked with an arrow on the gauge casing.
8.4 On gauges which measure drinking liquids and which may be disassembled, parts whose replacement may affect the results of measurements shall be repeated with the serial number or the last three digits of that number.
8.5 The counter shall have a type designation and a serial number.
9. LOCATION OF PLOMS AND VERIFICATION MARKS
9.1. The seals shall prevent access to parts which may alter the setting of the gauge and shall prevent the disassembly of the gauge, including the partial, if such disassembly is not permitted in the type-approval certificate of the gauge (gauges which measure the drinking liquids and which can be disassembled).
9.2 A fixed position visible without disassembly shall be provided on the measuring device, on the indicator device or on their mantle to attach EEC verification marks on an important part.
9.3. The type-approval certificate for a measuring instrument may specify the space for use of a seal on interchangeable parts of the measuring instrument which can be removed; This point is located right next to the production number mentioned in paragraph 8.4.
10. MAXIMAL IMPORTED HAIR ON MEASURING SYSTEMS
10.1 If the measuring instrument is incorporated into the measuring system, the maximum permissible errors listed in the table below shall apply as positive or negative variations depending on the quantity measured when the measuring instrument is first verified under normal conditions of use and within the range of use which are individually specified in the EEC type-approval certificate:
| Měřená množství | Maximální dovolené chyby |
|---|---|
| Od 0,02 do 0,1 litru | 2 ml |
| Od 0,1 do 0,2 litru | 2% měřeného množství |
| Od 0,2 do 0,4 litru | 4 ml |
| Od 0,4 do 1 litru | 1% měřeného množství |
| Od 1 do 2 litrů | 10 ml |
| 2 litry nebo více | 0,5% měřeného množství |
10.2. The maximum permissible error of the maximum margin shall be twice the value set out in point 10.1 and, irrespective of the quantity measured, shall never be less than the error of the maximum margin.
10.3 Due to particular checking difficulties, the maximum permissible errors for liquefied gas or other liquid measuring devices measured at temperatures below - 10 ° C or above + 50 ° C as well as for equipment for which the minimum flow rate is not greater than 1 litre per hour shall be equal to twice the errors referred to in points 10.1 and 10.2.
10.4. If all errors are at the initial verification of the same sign, at least one of them shall not exceed the limits set out in paragraph 7.1.
Příloha č. 2
Annex No 2 to Decree No 21 / 2001 Coll.
REQUIREMENTS FOR ADDITIONAL EQUIPMENT TO TRANSPORTS FOR CAPALINES OTHER THAN WATER
1. COMPLETION EQUIPMENT FOR COMPETITION
1.1 A loading device is a device by which the counter is set to zero either by hand or automatically.
1.2 The impactor shall not affect the result of the measurement.
1.3 If the zero action starts, it shall not be possible to show the newly measured volume until the zero action is completed.
1.4. The requirements set out in points 1.2 and 1.3 are not mandatory
(a) for counters the indicator of which is marked "Prohibition of direct public sale" or other appropriate restrictions on use of the same meaning;
(b) for hand-held counters mounted on meters whose maximum flow rate does not exceed 1200 litres per hour; If the gauges are intended for public sale of liquids, it shall not be possible to increase the displayed volume manually.
1.5 On continuous motion counters, the difference allowed shall not be greater than half of the maximum permissible error at least as indicated on the indicator, but shall not exceed one fifth of the value of the scale element after each zero action. On counters with discontinuous motion, the figure must be exactly zero.
2.
2.1 A counter with a zero device may be connected to one or more sum counters showing the sum of the different volumes gradually recorded by the counter.
2.2 A zero device shall not be installed in the sum counters.
2.3 The sum counters can only be performed as linear type counters.
2.4 The sum counters may be located in such a way that they are hidden.
2.5. The unit in which the value of the sum counter (or its mark) is given shall be indicated on the counter and shall comply with the requirements of the special legislature.3)
2.6 The value of the scale element of the first element of each sum counter shall be equal to 1 x 10n, 2 x 10n or 5 x 10n of valid volume units, where n is the whole positive or negative number or zero. It shall be equal to or greater than the value of the first element part on the zero device counter.
2.7 If you can also see data on the sum counter and data on the counter with the zero device, the digits on the sum counter must not have dimensions greater than half of the respective dimensions of the digits on the counter with the zero device.
3. COMPETITION WITH MORE INDICATORS AND MULTISPORTS
3.1 The counter may have several indicators. In addition, one or more simultaneously showing counters may be associated with it.
3.2 The values of the scale segments on different counters may be different, but the smallest measurement shall be uniform and shall be determined as the function of the scale panel resulting from the maximum value for this measurement.
3.3 The data on different counter or counter indicators shall not differ by more than the maximum permissible error at least as indicated on the indicator or indicators.
4. INDICATOR PRICES
4.1 Linear volume counters with zero gear may be supplemented by a linear indicator of the calculated price with zero gear whose unit price is the unit price per unit volume used to indicate the measured volume.
4.2 The unit price must be adjustable. The selected unit price must be displayed.
4.3 The unit price selection and display devices shall be associated with the price indicator so that the price corresponding to the measurement must always be equal to the product of the selected and displayed unit price and the displayed volume.
4.4 The requirements relating to volume counters shall apply mutatis mutandis to calculated price counters with the exception of point 1.5 concerning zero gear.
4.5 The money unit used or its symbol shall appear on the price indicator calculated.
4.6 The size of the digits on the price indicator shall not exceed the size of the figures of the volume counter.
4.7 The charging device for the price indicator and the volume counter shall be designed in such a way that the operation of the device on either of the two indicators automatically returns the other indicator to zero.
4.8 The calculated price for the volume equal to the maximum permissible error at the minimum rate indicated on the counter indicator shall not be less than one fifth of the value of the scale panel but not less than the price corresponding to the 2 mm interval on the scale of the first price indicator element, if the movement of that element is continuous. However, this figure of one fifth of a value or two millimetres shall not be less than one of the following monetary values, depending on the country where the installation is used:
10 Belgian or Luxembourg centimes,
1 French Centi,
1 Dutch cent,
1 lira,
1 fenik,
Ten pennies.
The price per volume equal to the maximum permissible error at the minimum margin indicated on the index shall be equal to at least two sections of the scale, if the movement of the first element of the index is discontinuous. However, the scale figure may not be less than one of the cash values above.
4.9 The difference between the displayed price and the price calculated on the basis of the unit price and the displayed volume under normal working conditions shall not exceed the price per volume equal to the maximum permissible error at the lowest margin indicated on the indicator of the indicator device.
However, this difference may not be less than twice the cash values referred to in point 4.8.
4.10. On continuous motion counters, after each zeroing, the tolerance from zero shall not be greater than half the price per volume equal to the maximum permissible error at the minimum rate indicated on the counter indicator but shall not exceed one fifth of the value of the scale panel.
However, this difference may not be less than one of the cash values referred to in point 4.8.
A zero value shall be displayed on the non-continuous motion counters at each zero.
5. PRESSURE DEVICES
5.1 A digital volume printing device may be connected to the meter counter.
5.2 The value of the printed part of the scale must correspond to 1 x 10n, 2 x 10n or 5 x 10n of valid volume units, where n is the whole positive or negative number or zero.
5.3 The value of the printed scale piece shall not be greater than the maximum permissible error at least as indicated on the indicator of the indicator.
5.4 The value of the printed scale piece shall be indicated on the printing device.
5.5 The printed value of the volume must be expressed in one of the valid volumes.
The printing device shall print on the ticket the figures including the decimal point, the unit used or its mark.
5.6 The printing device may print information concerning the batch, such as serial number, date, place of measurement, type of liquid.
5.7 The printing device may be so constructed that the printing can be repeated. In this case, the printed records must fully conform and have the same serial number.
5.8. If the volume is determined by the difference between the two printed values, one of which can be expressed as zero, it must not be possible to remove the ticket from the printing device during the measurement.
5.9 The printing device, except in the case referred to in paragraph 5.8, shall have a zero device combined with the zero device of the counter.
5.10. The difference between the volume displayed and the volume printed shall not exceed the value of one scale piece printed.
5.11 The printing device may, in addition to the measured volume, print either the price for that volume or that price and the unit price. If the printing device is connected to the volume counter and the price indicator for direct public sale, it can also print only the price to be paid.
The digits including the decimal point, the monetary unit used or its symbol shall be printed on the ticket. The printed digits for the price shall not have dimensions greater than those for the measured volume.
5.12 The value of the printed scale piece at a price shall be equal to 1 x 10n, 2 x 10n or 5 x 10n cash units, n being the whole positive or negative number or zero.
This value shall not exceed the price per volume equal to the maximum permissible error at the minimum rate indicated on the indicator of the indicator.
However, the value of this scale element may not be less than one of the cash values specified in paragraph 4.8.
5.13 If the meter is equipped with a price indicator, the difference between the displayed price and the printed price shall not exceed the value of the printed scale piece.
If the meter is not equipped with a price indicator, the difference between the printed price and the price calculated according to the volume displayed and the unit price shall comply with the conditions set out in paragraph 4.9.
6. PRESENTATION EQUIPMENT
6.1 Measurements may be equipped with a pre-set device.
Pre-selection devices are devices that enable the volume to be measured to be selected and which automatically stop the flow of the liquid when the selected volume has been measured.
6.2 The volume selected shall be displayed by means of a device with a scale and zero line or on a digital device.
6.3 If the prefix is made using different independent drivers, the scale panel value for one driver must be equal to the range of the driver preselection for the lowest decade.
6.4 The volume pre-selection device can be set so that repetition of the selected volume does not require resetting of the drivers.
6.5 If the number of the volume pre-set device is displayed, separated from the number of the counter and can be seen at the same time, the number of the pre-set device shall not have dimensions greater than three-quarters of the corresponding number of the counter.
6.6 The volume selected may either remain unchanged during the measurement or return gradually to zero.
6.7. The deviation found under normal working conditions between the volume chosen and the volume displayed at the end of the measurement operation shall not exceed half of the maximum permissible error at the lowest margin.
6.8 The selected volume and volume displayed by the counter must be expressed in the same unit. This unit (or its mark) shall be marked on the volume pre-selection device.
6.9 The value of the smallest scale element of the device for volume pre-selection shall not be less than the value of the scale element on the first element of the counter.
6.10 The volume pre-selection device may be fitted with a mechanism for rapidly stopping the flow of liquid if necessary.
6.11 If a volume pre-selection device is fitted with a flow control device at the end of the measurement, this shall be fitted with a seal if necessary to prevent any change to the selected setting.
6.12 The requirements of paragraphs 6.7 and 6.11 shall not apply if the measuring instrument is connected to the meter by means of a printing device which allows the printed ticket to be issued or if, in the case of direct public sale of the pre-selection device, it is hidden.
6.13 The price gauge may also be equipped with a price pre-set device. In this case, the flow of the liquid shall stop at the moment when the volume of the liquid issued corresponds to the price chosen.
7. PLOMBING
In order to prevent the removal of additional equipment and access to the parts of the meter that can be set up, the gauge shall be fitted with seals.
1) Decree No. 262 / 2000 Coll., which ensures uniformity and correctness of meters and measurements.
2) Decree No. 332 / 2000 Coll., laying down certain procedures for the approval and verification of certain EEC-marked measuring instruments.
3) Decree No. 264 / 2000 Coll., on basic measuring units and other units and on their labelling.
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Regulation Information
| Citation | Decree of the Ministry of Industry and Trade No. 21 / 2001 Coll., laying down requirements for flow meters for liquids other than water marked with EEC mark and for additional devices for such flow meters |
|---|---|
| Regulation Type | Order |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 16.01.2001 |
|---|---|
| Effective from | 21.04.2004 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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