Essilor Instruments ALM 500 - Measurement; Checkup before Measurement

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6.
6.6.
6. Measurement
MeasurementMeasurement
Measurement
6.1
6.16.1
6.1 Checkup before Measurement
• The lens holder is set properly.
• The lens under the lens stand is clean.
(In case that the lens is dirty, clean it with
a soft cloth.)
• Plug the power cord to the outlet.
• Set the printer paper in the printer.
(Refer to “5.4.2 Installation and Replacement of Printer Paper”.)
• Confirm that the lens is not placed on the lens stand.
• Turn on the power switch. The screen is displayed in seconds.
Always connect the earth terminal to a ground.
S
i
ngle lens measurement screen
Spherical degree
Cross cursor
Cylindrical degree
Cylindrical axis
Prism value
Basal angle
Measurement value
display area