Oxygen Sensor

Applications (See Application Notes for more)

• Design and monitor bio-venting, vapor extraction, and air sparging systems
• Perform in-situ respirometry tests
• Monitor performance of ex-situ bioremediation systems

Features/Installation

• One-step calibration in ambient air
• Measures oxygen levels in-situ - does not require soil gas pumping
• Install directly in soil or hang in monitoring well with screened interval in vadose zone
• Optional ported sensor allows for soil gas sampling, in-situ calibration, and simultaneous pressure monitoring.
• Sensor is not cross sensitive to CO₂, CO, CH₄, H₂S, H₂, or N₂
• Unique design allows sensor to recover after being submerged
• Optional signal converter allows operation with conventional multi-channel logger interface.

Summary Specifications (specification sheet)

• Size - 1.1 in. diameter by 7 in. anodized aluminum cylinder
• Accuracy - approx. 1% (full scale)
• Response time - 12 sec.
• Operating temp. - 0-70°C
• Cable length - 25, 50, and 75 feet
• Sensor life - greater than 7 years

Model Numbers

• Oxygen sensor (with 25 ft. cable) (XT253-25)
• Oxygen sensor (with 50 ft. cable) (XT253-50)
• Oxygen sensor (with 75 ft. cable) (XT253-75)
• Ported Oxygen sensor (with 25 ft. cable) (XT253SP-25)
• Ported Oxygen sensor (with 50 ft. cable) (XT253SP-50)
• Ported Oxygen sensor (with 75 ft. cable) (XT253SP-75)
• Oxygen data logger (EX064-E)
• Internal 4-20 m amp signal converter (XMC420SE)
• External 4-20 m amp signal converter (XMC420A)