6Section 2 - Instructions2.1 - DefinitionsHazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50 to 1000Volt AC.Technicians are qualified persons educated or trained to mount, operate, and alsotroubleshoot technically correct and in accordance with safety regulations.Operators, being familiar with the contents of this manual, adjust and operate the knobsor potentiometers during normal operation.2.2 - Receipt and UnpackingUnpack the module without damaging it. The packing should always follow the moduleuntil this has been permanently mounted.Check at the receipt of the module whether the type corresponds to the one ordered.2.3 - EnvironmentAvoid direct sunlight, dust, high temperatures, mechanical vibrations and shock, as wellas rain and heavy moisture. If necessary, heating in excess of the stated limits for ambienttemperatures should be avoided by way of ventilation.All devices fall under Installation Category II, Pollution Degree 1, and Insulation Class II.2.4 - MountingOnly technicians who are familiar with the technical terms, warnings, and instructions inthe manual and who are able to follow these should connect the device.Should there be any doubt as to the correct handling of the device, please contact yourlocal distributor or, alternatively, Mounting and connection of the device should complywith national legislation for mounting of electric materials, i.e. wire cross section,protective fuse, and location. Descriptions of input / output and supply connections areshown in the block diagram and side label.The following apply to fixed hazardous voltages-connected devices:The max. size of the protective fuse is 10 A and, together with a power switch, itshould be easily accessible and close to the device. The power switch should bemarked with a label indicating that it will switch off the voltage to the device.Year of manufacture can be taken from the first two digits in the serial number.Instructions2