The Series 9500 Oxygen and Carbon Dioxide Monitor is designed to provide continuous, unattended monitoring of both oxygen and carbon dioxide.

System Description
The focal point of the Series 9500 is its state-of-the-art sensor technology. The oxygen sensor features a patented extended life electrochemical sensor with EES (enhanced electrolyte system). EES retards passivation of the sensor anode by allowing the products of oxidation to dissolve in the electrolyte. As a result, sensor life is extended.

System Description
The focal point of the Series 9500 is its state-of-the-art sensor technology. The oxygen sensor features a patented extended life electrochemical sensor with EES (enhanced electrolyte system). EES retards passivation of the sensor anode by allowing the products of oxidation to dissolve in the electrolyte. As a result, sensor life is extended.

 

Alpha Omega Instruments has complemented its oxygen sensing capabilities with its next generation NDIR (non-dispersive infrared) measuring system. The carbon dioxide sensor incorporates closed-loop control for enhanced long-term calibration stability. The control signal is generated by means of an optical referencing element that monitors source intensity. This methodology, coupled with a novel source homogenizing gas sampling chamber, yields a system with greatly improved tolerance to changes in the infrared source outputs.

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Specifications
OXYGEN
Ranges:

Percent: 0-100,  0-25, 0-10,  0-5, 0-1

Error Band: ±1% of full scale
Response Time: 90% of full scale in less than 20 seconds typical
Sensor Type: Patented Electrochemical Sensor with EES
Operating Humidity Range: 1-99% RH non-condensning
Gas Sample Connections:  Quick connect fittings
Sample Delivery: Pressurized sample or optional pump
Alarm Relays: Single alarm relay for oxygen (optional)
Display: 3-1/2 digit LCD for oxygen
Outputs: 4-20 mADC

CARBON DIOXIDE
Ranges:

Percent: 0-20, 0-10, 0-5, 0-1 (special ranges consult factory)

Trace: (parts per million) 0-5,000

Error Band: ±2.0% of full scale or ±5.0% of reading, whichever is greater. For the trace range ±5% full scale or ±95ppm whichever is greater.
Response Time: <35 seconds to 63% of step change @ a sample flow rate of 500ml/minute.
Sensor Type: Non-dispersive infrared(NDIR)
Operating Humidity Range: 5-95% RH non-condensing
Gas Sample Connections:  Quick connect fittings
Sample Delivery:  Pressurized sample or optional pump
Alarm Relays: Single alarm relay for carbon dioxide (optional)
Display: 3-1/2 digit LCD for carbon dioxide
Outputs: 4-20 mADC

GENERAL SPECIFICATIONS
Power Requirements: 24 VDC (supplied through an AC/DC wall mounted adapter)
Ambient Temperature Range: 40-100°F (5-38°C)
Sample Pressure Limits: <1.0 psig.
Enclosure: NEMA 1, general purpose polycarbonate enclosure suitable for bench-top use
Enclosure Dimension: 11.4" H x 6.3" W x 5.0" D
Warranty: Two years electronics, one year for sensors
Weight: <3 pounds (uncrated)