The PT4 Smart Oxygen Probe can measure both dissolved oxygen and oxygen in gas, and
can be used in fish farms, sewage treatment works and similar as well as to measure air, pure
oxygen, other gases, oils, wine etc.
The Smart Oxygen Probe consists of an upper part with cable gland, electronic circuitry, a part
with cathode and anode, and a cap with membrane and electrolyte. When measuring dissolved
oxygen it functions correctly with liquid movement down to 1 cm/s.
The Smart Oxygen Probe is virtually maintenance free - just wipe the membrane and check
the calibration from time to time, the frequency depending on the actual conditions. PT4 Smart
Oxygen Probe do not need regular service.
Changing the membrane is only necessary if the membrane should be damaged or if, after
long use (years) it is not possible to calibrate up to the calibration value. The procedure, which
renovates the probe completely, is simple and an be performed by anyone who can follow the
instructions in this manual. Spares are shipped with the probe.