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Weights and Measures Regulations (C.R.C., c. 1605)

Regulations are current to 2022-01-12 and last amended on 2019-06-17. Previous Versions

PART VSpecifications Relating to Devices (continued)

DIVISION VWeighing and Measuring Machines in General (continued)

Design, Composition and Construction (continued)

 All registrations shall be clear, definite and easily legible under conditions of normal use of the machine.

 [Repealed, SOR/98-115, s. 9]

 Where a machine provides a printed record of the registration on a ticket or form, the ticket or form shall contain a statement of

  • (a) the quantity measured in the transaction or, where permitted or required by these Regulations or by specifications established by the Minister, a start and finish print such that the quantity measured can be calculated by subtraction;

  • (b) when the computed price is shown, the unit price for the commodity measured;

  • (c) the name, symbol or abbreviation appropriate to the unit of measurement registered and, as applicable, to the unit price and total price; and

  • (d) such further information as may be required by these Regulations or by specifications established by the Minister.

  • SOR/93-234, s. 2

 A machine equipped with an indicator or printer shall be capable of giving a visual or printed indication that the device has been properly returned to start position before any commodity is measured.

 The graduations on an analogue type of indicator or printer for a machine shall conform to the following specifications:

  • (a) in any series of graduations the lines or marks of corresponding graduations shall be uniform in size and character;

  • (b) the width of a graduation line or mark shall not be greater than the width of the minimum clear interval between graduations;

  • (c) graduation lines or marks shall be varied in length or size so that they may be accurately read;

  • (d) in a series of graduations, intervals representing identical quantities shall not differ by a ratio greater than 1.2 to 1;

  • (e) graduations intended to have specific values shall be defined by figures, words, symbols or combinations thereof uniformly placed with reference to the graduations and as close thereto as practicable, but not so positioned as to interfere with the accuracy of reading; and

  • (f) graduations and their defining figures, words and names or symbols or abbreviations for the unit of measurement shall be such that they will not become obliterated or illegible under conditions of normal use of the machine.

 The indicating element of an analogue type of indicator and the imprint of an analogue printer of a machine shall conform to the following specifications:

  • (a) the indicating portion of a poise or pointer and its relation to any associated series of graduations shall be such that there will be no confusion as to the quantity indicated or printed;

  • (b) the indicating portion of a poise or pointer shall reach but shall not obscure the finest graduation with which it is used;

  • (c) if the indicating portion of a pointer and the graduations are in the same plane, there may be a distance of not more than 1.0 mm or 0.04 inch between the end of the indicating portion and the end of the graduations, the distance being measured along the line of the graduations;

  • (d) the width of an indicating line or of the indicating portion of a pointer shall not be greater than the width of the narrowest graduation with which it is used; and

  • (e) the clearance between an indicating line or the indicating portion of a pointer and the reading surface of the graduations shall not be more than 1.5 mm or 0.06 inch unless adequate provision is made to prevent errors due to parallax.

 [Repealed, SOR/98-115, s. 10]

 Mechanical digital means of registration for a machine of the drum cyclometer or similar type shall conform to the following specifications:

  • (a) all digits except the last shall remain centrally aligned;

  • (b) there shall be means to show when the last digit is centrally aligned;

  • (c) any graduation lines on the finest indicating element shall provide a decimal or binary subdivision of the quantity between its successive digits;

  • (d) the digits representing a whole unit of measurement or a decimal multiple thereof shall be of uniform size, character and colour;

  • (e) the digits representing a decimal submultiple of the unit of measurement shall be set apart by a decimal point or comma; and

  • (f) where required by specifications for the particular class or type of machine, the digits representing a decimal or binary fraction of the unit of measurement shall be differentiated from the other digits by their size, character, colour or by a supplementary symbol.

  • SOR/2005-297, s. 41(F)

 Electronic digital means of indication for a machine shall conform to the following specifications:

  • (a) all digits shall be of the same height;

  • (b) the digits representing a decimal submultiple of the unit shall be set apart by a decimal point or comma; and

  • (c) the brightness of the electronically displayed digits and other information shall be such that they may be easily read under normal conditions of use.

 Associated with any digital registration by a machine there shall be suitably located defining words and the name, symbol or abbreviation for the unit or units of measurement appropriate in size and such that they will not become obliterated or illegible under normal conditions of use of the machine.

 Indicators and printers for monetary values shall conform to the same specifications as indicators and printers for registration of units of quantity.

Performance

[
  • SOR/2005-297, s. 42(F)
]

 Within such limits of repeatability as may be required by these Regulations or by specifications established by the Minister, a machine shall be capable of repeating its registrations for each identical load or quantity delivered regardless of repeated manipulations of any or all of the elements of the machine in a manner approximating normal conditions of use of the machine.

  •  (1) Subject to subsection (2), where a machine has or is installed with two or more means of registration that have the same units of measurement, the registrations shall be in accordance with the following criteria:

    • (a) in the case of electronic digital means of registration, the registrations thereof shall

      • (i) where the values of minimum increment of registration are the same, be in exact agreement, or

      • (ii) where the values of minimum increment of registration are not the same, be in agreement within 0.6 times the largest of those values of minimum increment of registration;

    • (b) in the case of mechanical digital means of registration, the registrations thereof shall be in agreement within 0.6 times the largest of the values of minimum increment of registration;

    • (c) in the case of analogue means of registration, the registrations thereof shall be in agreement within 0.25 times the largest of the values of minimum increment of registration; and

    • (d) in the case of combined digital and analogue means of registration, the registrations thereof shall be in agreement within 0.6 times the largest of the values of minimum increment of registration.

  • (2) A means of providing analogue registration that is of the servo-follower type and that is installed prior to January 1, 1976 shall be in agreement with any other analogue or digital means of registration connected to the same machine within twice the finest graduation.

  • SOR/90-118, s. 19
  • SOR/2005-297, s. 15

 The registration of monetary value on a machine provided with means of registration for monetary value shall be in mathematical agreement with the quantity indication and unit price, within such monetary limits as may be allowed by these Regulations or by specifications established by the Minister and the machine shall have words or symbols to differentiate clearly between the monetary value and the quantity registrations.

Installation and Use

 A machine that has electrical components or equipment or accessories attached to or used in conjunction with it that have or can have an effect on the accuracy of the machine shall be connected to an electrical supply the characteristics of which are as specified by the manufacturer of the machine and the electrical wiring and other electrical installation affecting the machine shall be in accordance with the specifications of the manufacturer and with specifications established by the Minister for that class, type or design of machine.

  • SOR/2005-297, s. 41(F)

 The installation and use of a machine shall be such as to ensure that it is protected from abnormal environmental factors such as excessive dust or extremes of temperature, vibration, electromagnetic or electrostatic fields that could have an adverse effect on its performance.

 A machine, other than a scale used for prepackaging or a device described in subsection 4(2), shall be installed so that the indications of the primary means of indication can be clearly read by any party to the transaction for which the machine is being used, but, if such an installation is not practicable, a secondary means of indication shall be provided to allow the parties to the transaction to read the indications.

  • SOR/2005-297, s. 16
  • SOR/2012-28, s. 3

 The primary indicator of a machine shall be so located as to allow an unobstructed view of the load-receiving element or the delivery outlet of the machine or, if owing to particular circumstances that is not feasible, a convenient means shall be provided for direct communication between an observer at the indicator and an observer at the load-receiving element or the delivery outlet.

 [Repealed, SOR/98-115, s. 11]

 A machine shall not be installed or used in conjunction with any supplementary means of registration unless that means of registration conforms to the specifications for registration set out in this Part and to the specifications established pursuant to subsection 13(1) and section 27.

  • SOR/2005-297, s. 17

DIVISION VIAutomatic Weighing Machines

Interpretation

 The following definitions apply in this Division.

continuous totalizing weighing machine

continuous totalizing weighing machine means a machine used for continuously weighing a bulk product on a conveyor belt, without systematic subdivision of the mass and without interruption of the movement of the conveyor belt. (appareil de pesage totalisateur en continu)

electronic computing machine

electronic computing machine means an electronic machine that calculates the monetary value equal to the product of the weight indication multiplied by the unit price. (appareil calculateur électronique)

electronic machine

electronic machine means a machine, other than a continuous totalizing weighing machine, that operates with electronic components and is equipped with a digital means of indication. (appareil électronique)

known test load

known test load means a load consisting of local standards or any other load the weight of which has been determined in relation to local standards. (charge connue)

machine

machine means an automatic weighing machine for use in trade that weighs without the intervention of an operator and follows a predetermined program of automatic processes characteristic of the machine. (appareil)

registration

registration includes both visual indication and printed representation of quantity, unit price or monetary value. (enregistrement)

tare function

tare function in respect of a machine, means a process, mechanism or feature that allows it to utilize tare. (fonction tare)

  • SOR/90-118, s. 20
  • SOR/98-115, s. 12
  • SOR/2005-130, s. 8
  • SOR/2012-28, s. 4
  • SOR/2017-17, s. 2

Design, Composition and Construction

  •  (1) If the accuracy of registration, including the zero weight indication, of a portable machine is affected when it is off level, the machine shall be equipped with a self-locking or lockable means of levelling and a level indicator.

  • (2) An electronic computing machine shall be equipped with a level indicator that is easily visible or with the tools that are necessary to expose the level indicator if it is not easily visible.

  • SOR/2012-28, s. 5
  •  (1) An electronic machine shall be equipped with an automatic motion detector to prevent the registration of weight values until the weight indication is stable within

    • (a) plus or minus one times the value of the minimum increment of registration, if the electronic machine has a capacity of 2000 kg or less; or

    • (b) plus or minus three times the value of the minimum increment of registration, if the electronic machine has a capacity of more than 2000 kg.

  • (2) An electronic computing machine shall be equipped with an automatic motion detector to prevent the registration of weight values until the weight indication is stable within plus or minus one times the value of the minimum increment of registration.

  • (3) The weight indication of an electronic machine shall be stable, in accordance with subsections (1) and (2), for at least 0.4 of a second before registering a weight value.

  • (4) The zero-setting mechanism and the zero-tracking mechanism circuits of an electronic machine shall be interlocked with the motion detector so that these mechanisms are inoperative while motion is being detected.

  • SOR/2012-28, s. 5
  • SOR/2017-17, s. 20(F)

 The registration of monetary value calculated by an electronic computing machine is to be rounded to the nearest cent as follows:

  • (a) when the digit next beyond the second decimal is less than 5, the second decimal is to be kept unchanged;

  • (b) when the digit next beyond the second decimal is greater than 5, or is 5 followed by one or more digits other than zeros, the second decimal is to be increased by one; and

  • (c) when the digit next beyond the second decimal is 5 and is followed by no other digits or by one or more zeros, the second decimal is to be kept unchanged if it is even and be increased by one if it is odd.

  • SOR/2012-28, s. 5
  • SOR/2017-17, s. 3
  •  (1) The tare function of an electronic machine shall operate only in a negative direction in relation to zero.

  • (2) The tare function control mechanism of an electronic machine shall be identified with the word “TARE”, the letters “TR”, or with words or letters that convey the same meaning.

  • (3) An electronic machine may be equipped with full-scale tare; however, the gross weight shall not exceed the rated capacity of the machine in accordance with the limits set out in section 170.

  • (4) The value of the minimum increment of tare of an electronic machine shall be the same as the value of the minimum increment of registration.

  • (5) The use of any mechanism to convert units of measurement (for example, a pound/kg switch) shall be inhibited when the tare is entered into the memory of an electronic machine, unless the mechanism converts all values of weight registration when activated.

  • (6) The tare function of an electronic computing machine shall be self-cancelling so that when any net weight is added to the tare, the total is computed, and when the gross weight is removed from the machine, the weight indication returns to zero in accordance with section 183, unless the machine is in prepackaging mode.

  • (7) A tare entry shall be automatically erased from an electronic computing machine’s memory only after the completion of the weighing operation. The entry of another price per unit of weight, the use of a “clear” mechanism or any other keying sequence shall not affect the tare entry.

  • (8) An electronic computing machine with a tare function shall be equipped with a power failure interlock mechanism that prevents the continuation of the weighing operation when there is a temporary loss of power. When there is a loss of power to an electronic computing machine, all visual indications of the tare function shall extinguish and remain extinguished even when power is restored.

  • (9) A negative weight value shall continue to be displayed on an electronic computing machine when the load-receiving element is empty and the tare function is in operation.

  • (10) There shall be a visual indication on or adjacent to the weight display of an electronic computing machine when the tare function is in operation.

  • (11) If an electronic machine, other than an electronic computing machine, displays only one weight value at a time, there shall be visual indication on or adjacent to the weight display that indicates that the tare function is in operation.

  • (12) If an electronic machine, other than an electronic computing machine, is capable of registering gross, net or tare weight, the weight values shall be clearly identified.

  • SOR/2012-28, s. 5
  • SOR/2017-17, ss. 4(F), 20(F)
 
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