6-8 6 Hardware
6.6.6 Reagent Refrigeration Board
Compared with other circuit boards, the reagent refrigeration board is an independent unit;
it can control the cooler chip on or off and then make the reagents cool; it can adjust the
temperature in the reagent carousel; also, it can drive the fans of the whole system and
feedback the signal of the working status of the funs to the main board; the detailed
functions are:
Controlling the refrigeration
Controlling the indicating LED of the refrigeration
Controlling the fans and defogging the code scan’s windows (reversed)
Feedbacking the sigual of the working status of the fans for lamp
Figure 6-6 shows the function framework of the reagent refrigeration board.
Figure 6-6 Reagent Refrigeration Board
6.6.7 Level Detection Board
The board detects the liquid level, the detailed functions are:
Detecting the reagent level and sample level with high reliability
Transferring the level detection signal to the main board when the probe touches the
liquid level
Protecting the probe from collision vertically and generating the detection signal
which is sent to the main board.
Figure 6-7 shows the function framework of the level detection board.
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