APOGEE MO200 Portable Oxygen Analyzer

The MO-200 is designed to measure 5 – 100% oxygen while the handheld meter displays and stores measurements. The wide measurement range allows it to be used for applications either in the soil or in the lab with the available diffusion or flow-through heads. The sensor is calibrated to ambient air making it very easy to calibrate. An aluminium housing that is filled with epoxy allows the sensor to withstand harsh conditions.

Designed to measure 0 – 100% Oxygen in soil, growth media, air, or in-line tubing (flow-through applications)
Includes temperature sensor to compensate for temperature changes
Integrated heater prevents condensation for use in conditions where relative humidity can reach 100%
Available in sensor-only version with pigtail leads (for dataloggers) or with handheld meter
Accessories
All Apogee oxygen meters can be purchased with attachments to facilitate measurements in soil/porous media or inline tubing.

Model AO-001:
Diffusion head designed for measurements in soil/porous media. The diffusion head maintains an air pocket and provides protection to the permeable Teflon membrane where gas diffusion occurs.

Model AO-002:
Flow through head designed for inline measurements. The flow through head allows connection of tubing via ¼ inch barbed nylon connectors.

In applications with high humidity, condensation can occur on the Teflon membrane, blocking the diffusion path of the sensor. To prevent this, a resistive heater is included to raise the temperature of the membrane approximately two degrees above ambient temperature.
*Measurement of oxygen below 1% requires special calibration. Contact Technical Support for more details.

Specification
Measurement Range: 0 to 100 % O₂
Measurement Repeatability: ± 0.1 % at 20.9 % O₂
Non-linearity: Less than 1 %
Oxygen Consumption Rate: 2.2 µmol O₂ per day at 20.9 % O₂ and 23 C
Response Time: 14 s (time required to read 90 % of saturated response)
Operating Environment: 0 to 50 C, less than 90 % non-condensing relative humidity up to 30 C, less than 70 % non-condensing relative humidity from 30 to 50 C, 60 to 140 kPa
Meter Dimensions: 12.6 cm length, 7.0 cm width, 2.4 cm height
Sensor Dimensions: 3.2 cm diameter, 6.8 cm length
Mass: 210 g
Cable: 2 m of two conductor, shielded, twisted-pair wire with santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions), additional cable available
Warranty: 4 years against defects in materials and workmanship