Precaution while using Microscope
When you instructor gives you the go ahead, you may acquire a microscope from the cabinet in the front of the classroom. Carrying a microscope is a two handed job. Grasp the arm of the scope with one hand (the built in handle on CH 30 scopes) and as you remove the scope from the shelf place your other hand under the base. NEVER carry the scope with one hand or swing it about. These are delicate, expensive tools and must never experience rough handling or be dropped! Notice how the electrical cord is wrapped around the neck of the microscope. The cord should be tightly wrapped. In addition, the nosepiece should be adjusted to place the 4X lens in the locked position and the stage should be lowered. Move the nosepiece if this is not the case. Raise the stage and unwrap the cord. Turn the rheostat to 1, the lowest power level, plug the microscope in and flip the toggle to on. We always begin with the rheostat turned low in increase the working life of the bulb.