© KEMPPI OY4 – MINARC 150, 151 / 0531Welding current circuitIsolate yourself from the welding current circuit by wearing dry and undamaged protective clothing.Never work on a wet surface. Never use damaged welding cables. Never set neither electrode holder,earth clamp nor the welding cables on top of the power source or other electric equipment.Welding fumesEnsure adequate ventilation. Always take special measures when welding metals containing lead,cadmium, zinc, mercury or beryllium.This equipment’s electromagnetic compatibility (EMC) is designed for use in anindustrial environment. Class A equipment is not intended for use in residential locationwhere the electrical power is provided by the public low-voltage supply system.2. BEFORE YOU START USING THE UNIT2.1. UNPACKINGThe equipment is packed in durable packages, designed specially for them. Nevertheless, alwaysbefore using the equipment, make sure it was not damaged during transportation. Also check thatyou have received what you ordered and that there are instructions for it. NOTE! The packagingmaterial of the products is suitable for recycling.2.2. PLACING THE UNITPlace the unit on horizontal, solid and clean surface. Shield it from heavy rain and scorching sun.Make sure that cooling air circulates freely.2.3. SERIAL NUMBERSerial number of the unit is marked on the rating plate of the unit. The serial number makes itpossible to trace product manufacturing series. You might need the serial number when placingspare parts orders or when planning maintenance.2.4. MAIN COMPONENTSConnect welding cable and earth cable to their connections on the power source. Mains cable andwall plug are already installed. (Note! Minarc 151 (110 V) is delivered without a plug).