A dissolved oxygen (DO) loop comprises a DO sensor selectable from a
variety of configurations, a cable, and a TruTrans™transmitter. The DO
sensor includes an anode, cathode, membrane, electrolyte, and the
electrical connector that is connected to the transmitter using a cable
(6 ft [1.83 m] or 10 ft long [3.05 m]). For a given transmitter, the sensor probe can be replaced. The sensor probe
can be separated from the cable and transmitter for sterilization. The transmitter integrates the signal processing, power
conversion, 4-20 mA output signal generation, and user interface
functions in one package.