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9
Getting Started
screen is shown on the LCD display. Then release the Action Control Button
and use the Up and Down Control Buttons to set the speed of sound
desired.
3. To return to the Measurement screen, press and hold the Action Control
Button for 2 to 3 seconds until the Measurement screen appears.
Figure 3.3 - Action Control Buttons and LCD
Figure 3.4 - Speed of Sound Screen
Basic Operation
The basic operation of the PachPen consists of the following steps:
1. Power on the PachPen instrument.
2. Take up to nine measurements.
3. Enter the measured IOP and calculate the corrected IOP for each eye.
4. Record the data in the Patient Record.
How to Power On the PachPen
1. With the battery installed, the PachPen is always powered. However, after a
period of nonuse, the unit turns off sections of the electronics, including the
LCD, to conserve power.
2. To restore the unit to full power, press any control button.
3. The Product Information Screen is briefly displayed, and then the
Measurement Screen is displayed.
How to Start a New Patient
1. Hold the Up and Down Control Buttons on the PachPen simultaneously for
2 to 3 seconds.
Figure 3.5 - Measurement Screen