Nidek Medical HandyRef-K, Руководство оператора

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45
OPERATING PROCEDURE: Startup and Shutdown
O
Operation of the measuring window check function
When the “ 71. WINDOW CHECK” (page 96) parameter is set to “YES” or “DAY”, the measuring win-
dow is checked for cleanliness at device startup.
An unclean measuring window has considerable influence on the measured results. In addition to
visual inspection, this checking function should be used to ensure measurement with a clean measur-
ing window.
1)
Press to turn on the main body.
The message “PRESS START BUTTON” is displayed on the WINDOW CHECK screen.
2)
The following conditions are required at start up
of the main body:
• The main body is held by hand.
If the main body is left on the station and checked
for measuring window cleanliness, the message
“WINDOW CHECK NG” may appear even if the
measuring window is clean.
• There are no objects beyond 1 m of the measuring
window.
• The measuring window is not exposed to interfer-
ence light.
3)
Press .
“MEASURING WINDOW CHECKING” is dis-
played and the measuring window is checked
for cleanliness.
Wait for checking results.
4)
The check result is displayed.
• When “WINDOW CHECK OK” is displayed:
The measuring window is clean. The screen
returns to the measurement screen.
1 m or more