Gentec-EO MAESTRO - Manual (Page 33)

MAESTRO User’s Manual Revision 8.1 32
will prompt the wavelength menu because the available wavelengths with and without the attenuator are
different.
A checkmark shows when the anticipation or attenuator is activated. It is a toggle switch - select it to
change between on and off. For the anticipation, the default is on and for the attenuator, the default is off.
However, these defaults can be changed in the startup config menu (refer to section 2.4.5).
2.4.2.4
Corrections
The user can apply a multiplier and an offset value to the detector reading. Correction factors are most
useful when sampling a percentage of a powerful laser beam or correcting for absorption along an optical
chain. The menu displays the values of the correction factors that are being applied to the
measurements.
Fig. 2-16 Setting Correction menu
The default value for the multipliers is 1, and the default for the offset is 0. To activate the correction
factors, touch Corrections in the Measurement Settings menu and then select Multiplier or Offset by
touching the appropriate check box. To change the multiplier or the offset’s value, touch the edit
button. A dialog box opens where you can enter the correction value. This number will be multiplied with,
or added to the actual measured value, to calculate the corrected value. Once the correction values are
set, touch the OK button to save the changes or the cancel button to ignore the changes.
The MAESTRO will then display the corrected value.
For example, if you are measuring the laser beam passing through the 99.9% back reflector of a laser
(giving 1/1000
th
of the real value), choose Multiplier and enter 1000 in the dialog box. The MAESTRO
will display the laser’s power rather than the measured 0.1% sample on the main display.