3B Optic Instruments PD-100 Panduan Pengguna - Halaman 14
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Components (cont.)
4 - Distance Selecting Buttons
These buttons are used for modifying the measurement data to
reflect short and medium fixation distances. When measurement
data is obtained, they are set to infinity (∞), and then adjusted to
display the short and middle range data.
5 - Operator's Window
This is the window through which the operator looks at the pa-
tient's eye.
6 - Print/Hold Button
By pressing this button the current measurement data is retained
on the Digital Display, not allowing it to change even if the Measurement Slide Buttons or
the Distance Selecting Buttons are pressed. If pressed a second time the data is released
and can be modified.
Pressing this button for 1(one) second, the equipment sends the information obtained
from the measurement to an infrared port of communication, which can be printed in a
printer.
7 - Occluder Button R/L
Pressing this button once, the left eye of the patient becomes occluded by the digital dis-
play, going out the luminous point where the patient fix the vision. Pressing the button for
the second time the action repeats itself with the right eye. Pressing this button for third
time it returns to measurement of both eyes.
8 - Digital Liquid Crystal Display
The PD 150's improved LCD screen allows a quick and clear view of the measurement
data and operation symbols.
9 - Display of Internal Reading
The display of internal reading allows display of fast, accurate and comfor-
table data obtained in the measurement, as well as the icons of operation.
10 - Forehead Rest
The Forehead Rest provides the instrument with a better stability, allowing for more relia-
ble and accurate measurement data.
11 - Lens Power Selector
By means of its two levels of ocular power for enhancing the operator's view of the pupil,
the PD 100 provides accurate interpupillary distance measurements.
12 - Patient's Window
This is the window through which the patient looks during the measurement process.
13 - Nose Support
This feature avoids problems of side movements, allowing for more accurate measure-
ments.
14 - Battery Lid
This lid provides access to the battery.
Special Characteristics
Fixation LED
The Fixation LED (Light Emitting Diode) inside the PD-150 is a visual target for the patient
during the measurement process. This target has a circular shape and is continuously on du-
ring the measurement. If the Measurement Slide Buttons or the Distance Selecting Buttons
are not pressed for approx. 20 seconds the LED will automatically turn off. It can be turned
on again by pressing the Measurement Slide Buttons or the Distance Selecting Buttons.
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REV: 02
Last Rev: 04-07-2016