Fig. 5
8
17. Reset Key RST
Pressing this key, it returns from other mode of measurement to the mode
ready to Operate.
18. Measurement Switching Key +/
When cylindrical lens is measured, pressing this key will realize switching of
light intensity of cylindrical lens degree. Pressing it once more, it returns to
the original state of display. It can be also used to set grade of measurement.
19. Measurement Switching Key S/C
Every time one presses this key, mode of measuring spherical lens or
cylindrical lens will be changed. Start-up of this machine defaults mode of
being ready to operate.
20. Adjustment Key ADJ
It is used to set grade of measurement.
4. Operation
4.1 Before Measurement
4.1.1
Preparation
1.
Place the device on a working table with proper height to the extent that
the adjusted inclined angle of the device will result in comfortable measurement
for the user.
2.
Put power supply wire into socket, and the device comes into mode of being
3.3 Liquid Crystal Display Screen (Fig 5)
