Hardware
3 Signals of level detection
The BC-2800 has not level sensors
4 Digital pot
The SPI bus interface implemented by the FPGA controls the 4 digital
potential-meters on the analog board to control the HGB gain.
5 Signals controlling valves and pumps
The Super I/O outputs 20 control signals to control the valves and pumps
through the driving board. Since the BC-2800 only has 1 pump and 11 valves,
the redundant lines and ports are reserved.
6 Signals controlling bath
The Super I/O outputs 4 control signals (through the analog board) to control the
three switches that respectively control the aperture zapping, current source and
HGB LED.
7. Others
The Super I/O outputs 2 control signals to control the photo-couplers of the
volumetric metering board and the buzzer of the keypad.
1-10 BC-2800 Auto Hematology Analyzer (V1.0)
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