Figure 12 - Quick Zero Valve Logic
Quick Zero Calibrations
The Quick Zero Calibration is used to make the minor corrections that may be necessary to maintain
the Digital Sensor Array accuracy. The Quick Zero function corrects the small zero drift problem
inherent in piezoresistive sensors. A functional drawing of the Standard Valve with Quick Zero Logic
is shown in Figure 12. The operation of the Quick Zero Calibration is described in the Special
Procedures section on pages 34 and 35 of this manual. Scanivalve Corp recommends that a Quick
Zero Calibration (CALZ) is performed daily, any time the temperature of the module varies more
than 3°C or before any test is performed.
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