The Grating Turret Control is used to select a new grating by rotating the grating turret to a new position. There are three
turret positions available so that a maximum of three grating can be tted at any one time. If additional gratings are
needed then the turret can be changed to install three new gratings. The values for up to three grating turrets may be
stored in the system.
The currently selected grating is always oat the bottom of the display and is also indicated by the arrow and the
spectrum graphic. As the cursor is placed over each grating position, the cursor changes to a pointing hand and details
about the grating are displayed.
Note 1: If the information is not automatically displayed, Simply move the cursor out of the turret control box and
then back onto the grating to refresh the information.
To change the grating, simply left-click on the grating you want to select. The hardware responds by rotating the grating
turret and the turret graphic in the software control rotates to reect the change.
Note 2: If the wavelength drive is reset then the grating turret automatically resets the grating to position one.
While the grating is being changed the software indicates that it is busy by displaying the hourglass symbol and the
grating information text will read “busy”. The maximum time needed to change between gratings is approximately 15
seconds.
Note 3: The text information displayed about each grating is stored in the Shamrock EEPROM. Edit EEPROM
dialogs allow this information to be updated if you change the turret to add new gratings.
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