PH/blood gas analyzer. The unit measures pH, PCO2 and P02 and performs calculations for CO2, HCO3, and base excess. Characteristics of the unit include: an automatic calibration capability and measurement ranges of 6.4 to 8.0 for pH; 0 to 800 mmHg for PO2; and 8.0 to 200.mmHg. for PCO2. Used in laboratories to conduct pH/blood gas determinations.