Oxygen Sensor Gauging Tape System for Petroleum Tankers and Inland Barges
he Flexi-Dip Oxygen Sensor Gauging Tape system measures the oxygen level without aspiration and its associated cumbersome sampling hose and weighted head piece. The operator can auto-calibrate the tape before it is inserted into the vapor-control valve and locked in place. Then the valve is opened and the tape sensor is lowered either one meter below deck level or to 50% of ullage space level. The digital LCD display in the hub of the device indicates the percentage of oxygen present. If the oxygen content exceeds 8% of the inert gas level in ullage space, audio and visual warning alarms in the unit are triggered.