110 Keysight CX3300 User’s Guide, Edition 4
Safety Information
Working in Comfort
• It takes very little pressure or force from your fingers to activate the buttons 
or scroll wheel on your mouse, scrolling mouse, trackball, or other input 
device. Using too much force can place unnecessary stress on the tendons 
and muscles in your hands, wrists, and forearms.
• If you are using a scrolling mouse, be sure to keep your fingers and hand in a 
rel
axed, neutral position when activating the scroll wheel. Also, this type of 
mouse features software that can minimize the number of mouse movements 
or button clicks.
• When using a mouse, trackball, or other input device, position it as close to 
the keyboard as possible, and keep it at the same level as you do not have to 
stretch while using it.
• Be sure to keep your mouse and trackball clean. Regula
r removal of 
accumulated dust and dirt helps ensure proper tracking and reduces 
unnecessary hand and wrist motions.