Do not attempt to open or repair the Mini Power Supply.Contact your distributor or Benchmark Scientific for service.3. Setup and OperationThe power supply should be set up on a level and stable surface,such as a laboratory counter. Choose a dry location that is not neara sink or running water.Set the On/Off switch to the middle “Off” position, connect theincluded power cord to the power inlet on the back of the instrument,and the other end of the cord to an appropriate electrical outlet.Check the rating label on the back of the power supply and make surethat the electrical supply from the outlet matches the requirements.The Mini Power Supply can accept input voltage from 100VAC to240VAC.With the power switch in the “Off” position, connect theelectrophoresis gel box using electrical leads to the appropriate “+”(red) and “–“ (black) output jacks on the front of the power supply.CAUTION: Only use insulated electrical leads that are designed forelectrophoresis applications with shielded banana connectors.CAUTION: Only use electrophoresis gel boxes that haveappropriate safety covers and safety features to prevent electricshock to the user.CAUTION: Always make sure that the gel box used has theappropriate buffer. An incorrect concentration of buffer can causeexcess current which will cause the fuse in the unit to blow.