3-28 Chapter 3: Module components SHB_U14
Pressure sensor circuit board
Location in module
Depending on the analyzer module configuration, the pressure sensor is mounted
in various positions on the main frame.
Structure
The pressure sensor is mounted on a circuit board with the applicable wiring.
The board is connected to the IR module circuit board.
Function
The pressure sensor measures pressure in the sample cell.
The signal is processed for pressure correction of the measurement signal.
As an option, the pressure sensor can also measure outside pressure via separate
tubing.
Specifications:
• Absolute pressure sensor
• Working range 700-1300 mbar
• Offset calibration required
Figure 3-26
Pressure sensor
circuit board
Inputs/Outputs
X2 Connection to IR module board
A Gas inlet (pressure in sample cell)
Figure 3-27
Pin layout
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