YL9160 PDA Detector
range and a tungsten-halogen lamp is used for visible range. Visible lights pass through the arc hole of a
D2 lamp so that all range of lights transmit to the 5o um slit. After projected to the slit, lights go to 1,024
photo diode array by a grating. Order sort filter is located in the front of PDA to remove 2nd light.
All parts are very precise materials, so it is prohibited for a user to open the optics for repair. Optics should
be opened by a trained service engineer only. Only remained lights after absorbed by sample arrives at
the photo diode array and photo-electricity exchange occurs in proportion to arrived light amounts at the
PDA . The voltage is digitalized by A/D converter and calculated logarithmic and filtered at YL9160
microprocessor. The valve is given as voltage output on a output terminal or transmitted through
communication.
L9160
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