Figure 14 - Absolute Valve Logic
Quick Baro Calibration
The Quick Zero Calibration cannot be performed on an absolute DSA module. Using CALZ
command will move the zero to barometric (14.7 psia typical). In order to zero an absolute
DSA module, a CALB command (performs a baro zero) to make the minor corrections that
may be necessary to maintain the Digital Sensor Array accuracy. The CALB function
corrects the small zero drift problem inherent in piezoresistive sensors. A functional drawing
of the Standard Valve with Quick Baro Logic is shown in Figure 14.
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