8-18 8 Test and Maintenance Software
reaction disk.
8.5 Photoelectric
The following operations are performed on the photoelectric screen:
1) Filter offset test;
2) Photoelectric gain auto-configuration;
3) Light source background test;
4) Dark current test.
8.5.1 Filter Offset
1) Select Photoelectric-Filter Offset, and then click Start.
2) The process will last for 3-4 minutes until all the red curves are displayed. The green
font appears to indicate the test is finished.
3) After testing, click OK. A pink line will be at the center of the first peak.You can also
adjust the line manually by clicking the up-arrow and the down-arrow on the text box
under the curve.
4) When the line is adjusted to the center of the first peak, the offset of the filter equals to
the value in the text box minus 100.
5) Confiugure the filter offset in PARA and Speed-Reaction Unit.