Joinwit JW3209 Series Manual page 20

(3) Power reading and calibration
Click the "Power Read" button, the current absolute optical power value, tested
in the instrument power meter module, will appear in the empty box;
Click the "Wave Selection" drop-down box to select the current test wavelength in
the instrument power meter module;
When the absolute optical power value in the instrument power meter module needs
calibration, first to choose the needed wavelength in the "Wave Selection", and then
to fill in the absolute optical power value in the blank edit box. Next to click the
"Power ADJ" button is ok. (image 5-36)
(4)Time setting
When you need to set the time on the meter, you can click the "Get Time" button.
Then the system will appear the current time automatically (image 5-37)；Now you click
the "Time Set" button to appear the dialogue box and then click OK. (Image 5-38)
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Image 5-36
Image 5-37
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