OXY-4 ST (G3)

Overview

Multi-Channel O2 Meter for Use with Numerous Sensor Designs

• Measurement range of max. 0 - 100 % oxygen
• For use with microsensors, dipping probes, non-invasive spots & FTCs
• USB-powered
• Controlled by PreSens Measurement Studio 2
• Compensation of temperature, pressure & salinity
• Small outer dimensions

Due to its small outer dimensions OXY-4 ST can be set up almost anywhere. It can be used with microsensors (230 µm fiber) in different designs, non-invasive sensors, dipping probes and flow-through cells (1 mm fiber). This makes it the ideal tool especially for benchtop applications. OXY-4 ST is compatible with sensor type PSt7 (detection limit 15 ppb, 0 - 100 % oxygen). This USB-powered oxygen meter is operated with the PreSens Measurement Studio 2 software and offers separate temperature compensation for each channel. The software has numerous features, offers additional pressure and salinity compensation and allows controlling several single and multi-channel meters simultaneously. This oxygen meter is the solution for most precise micro-invasive or non-invasive oxygen measurements.

Applications

Food & Beverage: Oxygen Permeation Measurement in PET Bottles Non-invasive oxygen sensors measure both in liquid and in gaseous (headspace) phases. They perform through transparent materials up to a thickness of 10 mm and even through slightly opaque packaging. The measurement is carried out by firmly holding the fiber optic probe against the side of a PET bottle where the sensor spot is positioned. Adjustable mountings and bespoke fixtures are available. This system allows even the parallel measurement of different bottles as the fiber can be moved from bottle to bottle.

Long-term Measurements in Soil PreSens offers dipping probes for oxygen measurement that does not consume oxygen. Due to their small dimensions they do not disturb the flow and mass-transport and consequently display the in-situ oxygen concentration. As minisensors from PreSens are long-term stable they can be implanted in soil for many years! With this new method the process of soil aeration, which is very critical for plant productivity, can be investigated. Dr. Heidi Heuberger, Technical University of Munich, Munich, Germany

Specifications

Oxygen sensors	PSt7 (optical ST connector)
Temperature sensor	4 x Pt100 temperature connection (sensors not included)
Temperature performance	From 0 °C to + 50 °C, resolution ± 0.1  °C, accuracy ± 1.0  °C
Power supply	Supply voltage: 5 VDC (USB-2.0-Mini-B), current/power: 400 mA
Temperature: operating / storage	From 0 °C to + 50 °C / - 20 °C to + 70 °C
Relative humidity	From 0 to 80 % (non-condensing)
Dimensions	164 mm x 85 mm x 50 mm
Weight	417 g
Digital interface	USB interface cable to PC, cable included

Accessories

Citations

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