Specifications Relating to Non-automatic Weighing Devices (1998)
The Minister of Industry, pursuant to paragraph 10(1)(i)Footnote a of the Weights and Measures Act and sections 13Footnote b and 27Footnote b of the Weights and Measures RegulationsFootnote c, hereby establishes the annexed Specifications Relating to Non-automatic Weighing Devices (1998).
June 15, 1998
- actual scale interval
actual scale interval or d means the value, expressed in units of mass
- automatic indicating device
automatic indicating device means a weighing device in which the position of equilibrium is obtained without an operator’s intervention. (appareil de pesage à équilibre automatique)
- auxiliary indicating element
auxiliary indicating element means a rider, a vernier or, in the case of a digital indicating device, the last figure after the decimal sign that is clearly differentiated from other figures such as by size, shape or colour. (dispositif indicateur auxiliaire)
- initial zero-setting mechanism
initial zero-setting mechanism means a feature that automatically sets a weighing device to zero at the time the device is switched on and before it is ready for use. (dispositif de mise à zéro initiale)
- maximum capacity
maximum capacity or Max means the maximum weighing capacity of a weighing device and, in the case of a multiple range device, the maximum weighing capacity of the relevant range. (portée maximale ou Max)
- metrological function
metrological function means a function of a weighing device that is necessary for the measurement process — including the sensing of the measured quantity, the transmission, processing, storage and correction or adjustment of measurement signals or values and the indication or printing of measurement values — and that can impact on the final quantity determination or price calculation or affect the validity of transactions. Metrological functions include, but are not limited to,
(a) displaying or printing gross, tare, net and negative weight values, zero, and unit and total prices;
(b) setting zero, linearity, sensitivity, scale intervals, maximum capacity and motion detection; and
(c) performing the computation and rounding of price and weight values and the storing of values. (fonction métrologique)
module means a part of a weighing device that
- multi-interval device
multi-interval device means a weighing device
(a) that has a single weighing range divided into partial weighing ranges, each of which has a different scale interval; and
(b) in which the appropriate partial weighing range is automatically determined according to the load applied, both for increasing and decreasing loads. (appareil à échelons multiples)
- multiple range device
multiple range device means a weighing device that
(a) has, for the same weighing and load-receiving element, two or more weighing ranges, each of which
(b) selects automatically, or permits the operator to select manually, any of the weighing ranges. (appareil à étendues multiples)
- non-automatic indicating device
non-automatic indicating device means a weighing device that requires an operator’s intervention to obtain equilibrium, such as an equal-arm scale with weights. (appareil de pesage à équilibre non automatique)
- non-automatic weighing device
non-automatic weighing device or weighing device means a weighing machine that weighs discrete loads and that requires an operator’s intervention during the weighing process, such as to deposit the load to be measured on the weighing and load-receiving element and to remove it therefrom or to obtain weight results. (appareil de pesage à fonctionnement non automatique ou appareil de pesage)
- number of verification scale intervals
number of verification scale intervals means the value obtained by using the following formula:
- represents the maximum capacity, and
- represents the verification scale interval. (nombre d’échelons de vérification)
- on-board weighing system
on-board weighing system means a weighing device designed to be an integral part of, or attached or secured to, the frame, chassis, lifting mechanism or bed of mobile equipment such as a truck, tractor, trailer or forklift. (système de pesage monté sur véhicule)
- verification scale interval
verification scale interval or e means a value, specified by the manufacturer and expressed in units of mass, that is used for the classification and inspection of a weighing device. (échelon de vérification ou e)
- weight classifier
weight classifier means a weighing device with a digital indicating element that rounds a weight value up to the next verification scale interval. (appareil classificateur)
(2) In these Specifications, a reference to a verification scale interval or actual scale interval refers to that of the weighing range or partial weighing range, as the case may be, that is being tested.
- SI/2005-85, s. 1.
(2) A non-automatic weighing device that, before June 15, 1998, was approved under subsection 3(1) of the Weights and Measures Act or inspected under the terms of a previous enactment — or whose class, type or design was so approved —
(a) is subject to the performance requirements set out in these Specifications; and
(b) is not subject to any of the provisions of these Specifications relating to design, composition, construction or marking where the non-automatic weighing device meets the requirements that applied when its class, type or design was approved or, failing which, that applied to the device on its approval or inspection.
- SI/2005-85, s. 2.
Classification of Non-automatic Weighing Devices
3 (1) Subject to subsections (2) and (3), the classes of non-automatic weighing devices are as set out in column 1 of the table to this subsection on the basis of the device’s accuracy, verification scale interval and number of verification scale intervals as set out in columns 2, 3 and 4, respectively, of that table.
Column 1 Column 2 Column 3 Column 4 Verification scale interval (e) Number of verification scale intervals Class Accuracy International Units Canadian Units Minimum Maximum Special e e 50 000 – – – High 0.001 g (0.005 carat) 0.00005 ounce (troy ounce) 100 100 000 ≤ e ≤ ≤ e ≤ 0.05 g (0.2 carat) 0.002 ounce (troy ounce) e ≥ 0.1 g (0.5 carat) e ≥ 0.005 ounce (troy ounce) 5 000 100 000 Medium 0.1 g ≤ e ≤ 2 g 0.0002 pound (0.005 ounce) 100 10 000 ≤ e ≤ 0.005 pound (0.1 ounce) e ≥ 5 g e ≥ 0.01 pound (0.2 ounce) 500 10 000 Medium (high capacity devices) e ≥ 2 kg e ≥ 5 pounds 2 000 – – – Ordinary e ≥ 5 g e ≥ 0.01 pound (0.2 ounce) 100 1 200
(2) On-board weighing systems are limited to Classes , and .
(3) The verification scale interval of Class on-board weighing systems shall not be less than 5 g.
- SI/2008-81, s. 1.
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