page 16 of 64• Adopt suitable measures in case of differences fromrecommended conditions, e.g., using the equipmentoutdoors, or in an atmosphere of conductive pollutionor external condensation.• Do not operate this product near flames.To the best of our knowledge the equipment is in com-pliance with the requirements of the applicable EC-direc-tives and harmonized standards (see ”Declaration of Con-formity”) with regard to design, type and model. DirectiveEN 61010-1 gives in detail the conditions under which theequipment can be operated safely (see also IP degree ofprotection, “Technical data”, pg. 21).Operating conditions➨ This device is not approved for operation in potentiallyexplosive atmospheres. Do not operate the device inpotentially explosive atmospheres.➨ Devices without the ”`” mark on the rating plateare not approved for operation with dangerous orexplosive gases or with potentially explosive or in-flammable substances. Do not operate the devicewith dangerous or explosive gases or with poten-tially explosive or inflammable substances.➨ Devices bearing the ”`” mark on their rating platesare approved for operation with potentially explo-sive atmospheres according to their classificationII 3G IIC T3 X according to ATEX, but they are notapproved for operation in potentially explosive at-mospheres (see section “` Important information:Equipment marking (ATEX)”, pg. 19).• Ensure that the materials of the vacuum gauge’s wet-ted parts are compatible with the substances in thevacuum system, see section “Technical data”, pg.21.NOTICE