Measurement Procedure; Basic Measurement - Nidek Medical NT-2000 Operator's Manual

4.2 Measurement procedure

4.2.1 Basic measurement

The basic measurement procedure is explained here.
1. Turn ON ( | ) the power switch.
The indications as in the figure on the right
appear on the screen.
* The indication of the eyelid detection mode**
appears if those modes are set beforehand
with the sub-switches. For the setting, see
"4.4 Setting and Operation of the Sub-
switches" (p. 4-12).
2. Check the instrument before use. (Check the following items for any abnormality.)
• The indication explained in Step 1 above is on the screen.
• No dust or contamination on the air nozzle.
• No abnormal sound is heard.
• The joystick moves smoothly.
3. Change the measurement range** and the alignment mode**.
1) Press the
measurement range in the order of "APC 40" → "APC 60" → "40" → "60"→ "APC 40"
* When the power switch is turned ON, the initial setting is "APC 40".
Measurement range
APC 40
APC 60
40
60
2) Press the
alignment mode in the order of "AUTO" → "MANUAL" → "AUTO" →
power switch is turned ON, the initial setting is "AUTO" mode.)
Alignment mode
"AUTO"
"MANUAL"
switch to select the measurement range. Every pressing of this switch changes the
Standard for selection
Normal
40 mmHg or more of intraocular
pressure
Intraocular pressure fluctuates
remarkably.
40 mmHg or more of intraocular
pressure that fluctuates
remarkably.
switch to select the alignment mode. Every pressing of this switch changes the
Alignment (vertical/horizontal)
Auto
Operation by joystick
Without eyelid detection mode
Measurement range
Control of the air pressure
Peak of the air pressure is automatically
controlled within the range of 1 to 40
mmHg.
Peak of the air pressure is automatically
controlled within the range of 1 to 60
mmHg.
Peak of the air pressure is fixed within the
range of 1 to 40 mmHg.
Peak of the air pressure is fixed within the
range of 1 to 60 mmHg.
Focusing (back and forth)
Operation by joystick
Operation by joystick
4 - 2
Alignment mode
.
. (When the