What is BS EN 45501- Non-automatic weighing instruments about?
BS EN 45501 is a European Standard that discusses metrological aspects of non-automatic weighing instruments.
BS EN 45501 specifies the metrological and technical requirements for non-automatic weighing instruments.
BS EN 45501 is intended to provide standardized requirements and testing procedures to evaluate the metrological and technical characteristics in a uniform and traceable way.
Who is BS EN 45501- Non-automatic weighing instruments for?
BS EN 45501 on metrological aspects of non-automatic weighing instruments is relevant to:
- Manufacturers of non-automatic weighing instruments
- Companies involved in metrological engineering
- Certification bodies
- Metrological authorities
Why should you use BS EN 45501- Non-automatic weighing instruments?
General technical requirements apply to all types of instruments, whether mechanical or electronic and are supplemented or modified with additional requirements for instruments used for specific applications or designed for special technology. They are intended to specify the performance, not the design of an instrument, so that technical progress is not impeded.
BS EN 45501 provides testing procedures to establish the conformity of instruments with the requirements of BS EN 45501.
BS EN 45501 is applied to facilitate the exchange and acceptance of test results by metrological authorities. The requirements apply to all instruments irrespective of their principles of measurement. Instruments are classified in accordance with:
- The verification scale interval, representing absolute accuracy
- The number of verification scale intervals, represents relative accuracy
The requirements of BS EN 45501 apply to all devices performing the relevant functions, whether they are incorporated in an instrument or manufactured as separate units. Examples are:
- Load-measuring device
- Displaying device
- Printing device
- Pre-set tare device
- Price-calculating device
Testing procedures are provided to establish conformity of instruments with the requirements of BS EN 45501. They should be applied to facilitate exchange and acceptance of test results by metrological authorities.