anx_I__cpt_3__cpt_1__cpt_3

1.3. The manufacturer shall specify the climatic, mechanical and electromagnetic environments in which the instrument is intended to be used, power supply and other influence quantities likely to affect its accuracy, taking account of the requirements laid down in the appropriate instrument-specific annexes. The manufacturer shall specify the upper temperature limit and the lower temperature limit from any of the values in Table 1 unless otherwise specified in the Annexes III to XII, and indicate whether the instrument is designed for condensing or non-condensing humidity as well as the intended location for the instrument, i.e. open or closed. Table 1 Temperature Limits Upper temperature limit 30 °C 40 °C 55 °C 70 °C Lower temperature limit 5 °C –10 °C –25 °C –40 °C 1.3.2. Mechanical environments are classified into classes M1 to M3 as described below. M1 This class applies to instruments used in locations with vibration and shocks of low significance, e.g. for instruments fastened to light supporting structures subject to negligible vibrations and shocks transmitted from local blasting or pile-driving activities, slamming doors, etc. M2 This class applies to instruments used in locations with significant or high levels of vibration and shock, e.g. transmitted from machines and passing vehicles in the vicinity or adjacent to heavy machines, conveyor belts, etc. M3 This class applies to instruments used in locations where the level of vibration and shock is high and very high, e.g. for instruments mounted directly on machines, conveyor belts, etc. The following influence quantities shall be considered in relation with mechanical environments: vibration; mechanical shock. 1.3.3. Electromagnetic environments are classified into classes E1, E2 or E3 as described below, unless otherwise laid down in the appropriate instrument-specific annexes. E1 This class applies to instruments used in locations with electromagnetic disturbances corresponding to those likely to be found in residential, commercial and light industrial buildings. E2 This class applies to instruments used in locations with electromagnetic disturbances corresponding to those likely to be found in other industrial buildings. E3 This class applies to instruments supplied by the battery of a vehicle. Such instruments shall comply with the requirements of E2 and the following additional requirements: voltage reductions caused by energising the starter-motor circuits of internal combustion engines, load dump transients occurring in the event of a discharged battery being disconnected while the engine is running. The following influence quantities shall be considered in relation with electromagnetic environments: voltage interruptions; short voltage reductions; voltage transients on supply lines and/or signal lines; electrostatic discharges; radio frequency electromagnetic fields; conducted radio frequency electromagnetic fields on supply lines and/or signal lines; surges on supply lines and/or signal lines. 1.3.4. Other influence quantities to be considered, where appropriate, are: voltage variation; mains frequency variation; power frequency magnetic fields; any other quantity likely to influence in a significant way the accuracy of the instrument.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-06 · Text as adopted (Official Journal); later amendments are not incorporated in this text.