VWR VisiScope 384 Serie Manual De Instrucciones página 7

Automatic Light Control (BL384 P, BL384 PI and BL384 PH models)
BL384 P and BL384 PI models have a special function called "Automatic Light Control".
The level of light is adjusted by the microscope in order to maintain the same level as the one the user has
chosen, no matter if the aperture of the diaphragm changes, another objective is inserted, opacity of the
sample changes, etc.
ALC BUTTON
BRIGHTNESS
ADJUSTMENT
KNOB
1) Set the focus on the sample as described in the previous chapters, using the objective of your choice.
2) Rotate the brightness adjustment knob in order to get a comfortable level of illumination.
NOTE: ALC system works properly with medium-to-high light intensity, do not set the brightness to a
minimum level.
3) Press the ALC button on the side of the microscope.
Now the ALC system is working: if you open or close the aperture diaphragm or change objective, the system
will try to maintain the same level of illumination as the one you stored when you pressed the button.
4) Press the ALC button again to return to a manual control of illumination.
NOTE: ALC system is not suitable for use with phase contrast.
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