User`s guide

Introduction
1-6
Important Ergonomic Information
Under circumstances of poor posture or poor setup, certain recent
scientific articles suggest that injuries may occur. Other articles suggest
that there is no cause and effect. Because the safety of our users is a
great concern, it is important to take these precautions:
• Be comfortable in your work space.
• Change your posture frequently.
• Proceed according to the recommendations in the following table
and figure.
Adjust So . . .
Chair Feet are flat on the floor.
Legs are vertical forming a right angle to the floor.
Your weight is off your thighs and they are horizontal. Keep the
back of your knees away from the seat so you do not compress
the area behind them, which could restrict the blood flow.
Your upper body is erect and your lower back is supported with
a backrest.
Keyboard or mouse Your wrists are straight and do not bend more than 15 degrees.
They may be supported when resting but not on sharp edges.
Type comfortably, with no more key pressure than needed to
feel the contact point.
Upper arms are straight down at your sides, elbows are close to
your sides and support your arm weight. Forearms are at a 70
degree to 90 degree angle.
If you use a mouse, rest your hand on the mouse so your wrist
is not on the work surface. Operate the mouse close to your
body’s centerline.
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