2.1.9. Pressure Sensor
This is an MPX5100AP, calibrated pressure sensor, which measuring required air pressure and
vacuum. Pressure Sensor is connected directly to the PPB card.
The pressure sensor can operate from +5V only. It is a calibrated sensor with 0-1.1
Bar input range. Do not apply more than 1.5 Bar to it, because it can ruin the
pressure sensor.
2.1.10. Digital Reagent Sensor Board
This board contains three liquid detector opto-detectors (optos) and a reference opto for
automatic temperature and stray light compensation. The reference opto is located in the middle
and it has the same temperature and backlight conditions as the sensing ones.
The Reagent Sensor Board is connected to the PPB card, and the valve driver micro-controller
makes the sensing and compensating operations.
The instrument performs automatic initialization – or calibration – of reagent sensors during
priming phase of fluidics.
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