3-7
3.3 Measurement procedures
3.3.1 Biometry mode setup
a) Turning the power on and initial adjustments
ALWAYS clean the probe tip before taking a measurement on a human eye.
NEVER use the probe if there is any visible damage to its tip. Such use may
cause an incorrect measurement and/or damage to the cornea.
As with any ultrasound instrument, it is recommended that we exposure be
kept as low as reasonably achievable. (ALARA)
Before turning on the power
*Make sure that the power plug is properly connected to
the receptacle.
*Make sure that the biometry probe is properly con-
nected.
*If the power turns off, wait for over one mimute to turn it
on again.
1)
Turning on the power switch (1) at the upper left side of the
instrument initiates self-checking of the probe. If the
biometry probe is not detected (i.e., no probe or wrong
probe connected), the message “Probe error!” will be
presented.
2)
Adjust the contrast of the screen with the contrast adjuster
(2).
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