... isconverted into a distance from which the total level orinterface level is calculated.The intensity of the reflection depends ... Proof for use in Class I, Div. 1,Groups B, C and D;Dust Ignition Proof for use in ... connections toClass I, II, III, Div. 1, Groups A, B, C, D, E, Fand G.Temperature Class T5 @ +85 ... 9150077-944.Non-Incendive Class I, Div. 2, GroupsA, B, C and D;Suitable for Class II, III, Div. ...