
d. Calibration of Automatic Pressure Compensation Oxygen readout is automatically corrected to within ±1% of fullscale for barometric pressure variations within ±3% of the target value and is corrected to within ±2% of fullscale for variations within ±5% of the target value. The target value may be set anywhere within the range of -2.7 to 3.3 psig ±3 psig ( 18.6 to 22.8 kPa ±21 kPa). The factory setting is 0 psig (0 kPa). This setting is suitable for applications where (a) the analyzer exhaust p