Leitz power unit 12v100 & 50w microscope lamps manual. Available to purchase for immediate download. Below is an extract from the manual converted to text for a quick impression on the content. Leitz power unit 12v100 & 50w microscope lamps manualLeitz Power Unit For the 12v 10oW/12v 5oW microscope lamps InstructionsSetting the voltage for the correct colour temperature The power unit is switched on with the mains switch (1.2). when the lamp built into the switch will light up. The voltage can be set with rotary knob (1.3) and read off the measuring instru- ment (1.1). With the aid of the graph the colourtemperature re- quired is set via the lamp voltage. This graph can also be direct- ly glued to the power unit. The spindle with slot (1.4) serves for the limitation of the lamp voltage to a value which can be preset. For this purpose this spindle must first be turned against the Iefthand stop and the rotary knob against the righthand stop. It now the spindle is turned to the right until the measuring instrument indicates the required voltage. this maximum value can no longer be ex- ceeded with the rotary knob (1.3).