OXYGEN SENSOR - AQOX- GAL150.

The AQUAMATIC oxygen sensor AQOX-GAL150 is a "Galvanic cell" type that offers the most advanced design of oxygen electrodes available for both profiling and monitoring.

The sensing element consists of a Zinc tube anode which encircles the centred plastic body where the cathode (a silver wire) is sealed in the middle. The sensor is filled with electrolyte and covered by a thin membrane. A double thermistor technology result in automatically temperature compensation of the sensor it self.
The Zinc anode acts as a reference cell, providing a constant potential with respect to the cathode.
The cathode, where oxygen is consumed or reduced, is separated from the sample to be analyzed by a thin layer of electrolyte and a special thin composite membrane.

Features include a pressure stable and waterproof construction designed for easy maintenance at sea. Small dimensions, high accuracy and good long time stability. No warm up time.
The construction permits extended periods of oxygen measurements. The electronic has built-in sensor separation (isolated amplifier) for fast performance at different applications. The sensor it self deliver a voltage output at approximately 25 m volt.

SPECIFICATIONS
Oxygen range : 0 - 150 % sat. - (0 - 20 mg/l).
Accuracy : + 2.0 % sat. - ( + 0.2 mg/l).
Repeatability : + 1.0 % sat. - ( + 0.1 mg/l).
Response time - 50 m. : 10 sec. - 63 % (25 m membrane @ 20 ^oC).
Response time - 50 m. : 30 sec. - 95 % (25 m membrane @ 20 ^oC).
Resolution - 12 bit. : 0.04 % sat.
Flow sensitivity : 5% difference between stirring and no stirring.
Linearity : + 4% per ^oC temperature sensitive, (software compensation available)
Stability : Drift less than + 2.0% over 1 months.
Depth : 175 dbar or 250 psi.
Maintenance : Cleaning in the field or laboratory.
Vibration - Shock : Limited by the construction and the 50 m membrane.


AQUAMATIC, Ellebrinken 99, 8520 Lystrup, Denmark, Phone: +45 86 17-31-44,
E-mail: aquamatic@aquamatic.dk