2
Using the calibration module
2.1
Testing the module
There are two switches on the Alpy calibration mod-
ule. One is for calibration and the other for the flat
field (halogen lamp).
Plug in the power supply cable, and switch on the
calibration lamp (left switch):
The screen moves to the middle of the calibration
module, and the calibration lamp is illuminated (the
intensity is low - look directly at it, in a dark room).
A LED indicates that the lamp is on. It will be useful
when the Alpy calibration moduleis on the telescope:
no light other than LED will be visible from outside.
Now, switch off the calibration lamp and switch on
the flat lamp. This lamp is much brighter than the cal-
ibration one.
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