Gentec-EO M-LINK - Manual (Page 19)

M- LINK User’s Manual Revision 3.0 13
2.2.4.6 Firmware
The firmware version of your M-LINK.
2.2.4.7 Model and S/N
The head name and serial number.
2.2.4.8 Min Lambda & Max Lambda
The available minimum and maximum wavelengths of the head (in nanometer).
2.2.4.9 AREA
The default Area is 0.707e-1. You have to enter the area of your head manually. Activate the Area
Correction in order to have your measurement in J/cm
2
.
2.2.4.10 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.
Multiplier & offset: Correction factor to be applied to the measurement. The Formula is (Value *
Multiplier) + Offset. The default value for the multiplier is 1, and the default for the offset is 0. 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 M-LINK displays the
laser’s power rather than the measured 0.1% sample on the main display.
It is essential to make sure that the actual measured value also complies with the power and energy limits
of the detector head. The auto range option is the default selection. You can select a specific range but
it must always be based on the actual physical measured values and not on the corrected value. Of
course, the displayed values and the display scale selection are then calculated to take into account the
correction factors.
Note that the Statistics are calculated for the corrected values only.
To disable the correction factor, touch the check box corresponding to the correction factor (multiplier or
offset) in the Corrections menu window.
Average: The number of measurements to be av eraged. In wattmeter mode, it’s the average off a 10Hz
measurement. Click the Display Averaging to active the averaging.