PSI HX-400 - Components

3
Components
F1 Measuring Window-theworkingwindowforthetester.
F2 Optic Distance Knob-setdierentpupillarydistancesbyturningtheknob.
F3 Left Pupil Measuring Slide - used to measure left pupillary distance. Slide to the outside, the
numerical value of the left eye and binocular pupillary distance will rise. Slide to the inside and the value
of the left eye binocular pupillary distance will decrease.
F4 Right Pupil Measuring Slide - used to measure right pupillary distance. Slide to the outside, the
numerical value of the right eye and binocular pupillary distance will rise. Slide to the inside and the value
of the right eye binocular pupillary distance will decrease.
F5 Function Transition Button - press to set the PD height measurement.
IMPORTANT NOTE - The right reading on the display denotes the distance between the center of the nose
and the right eye pupillary and the left reading denotes the distance between the center of the nose and
the left eye pupillary. The PD value is the distance between the left eye pupil and right eye pupil. The unit
of measure is mm.