OA-1S+ Portable Trace Oxygen Analyzer

Portable Trace Analyzer

The Neutronics Model OA-1S+ Portable Trace Oxygen Analyzer for high purity applications requiring ppb (parts per billion) measurement

  • PPB to 100% measurement range
  • Rapid-response Neutronics zirconium oxide sensor
  • Electro-polished SS tubing and orbital welded ­fittings
  • Unaffected by position or motion
  • 5 year sensor life with no regular service required
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The Neutronics Model OA-1S+ is a Portable Trace Oxygen Analyzer accurately measures oxygen in the range of 75 ppb to 100%. Featuring the Neutronics rapid response zirconium oxide sensor with its extremely fast response and high accuracy, the Model OA-1S+ can be exposed to air and quickly read ppb oxygen in a variety of background gases, including nitrogen, argon, and helium. The OA-1S+ is designed to measure oxygen concentrations in clean gases that do not contain hydrocarbons or carbon monoxide.

The robust design of the Neutronics zirconium oxide sensor gives this analyzer the ability to rapidly measure oxygen through large step changes in concentration and the ability to accurately measure ppb concentrations of oxygen within seconds after exposure to air. When heated to an elevated temperature, the rapid-response zirconium oxide sensor produces a predictable electrical output in response to changes in the partial pressure of oxygen. The sensor is a solid-state device that utilizes yttria-stabilized zirconia (YSZ), a zirconium-oxide based ceramic.

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Measuring Range: auto 75 ppb to 100% O2
Accuracy: 75 to 100 ppb @ ± 5.0% 101 ppb to 99.9% @ ± 2.0%
Enclosure Rating: NEMA 4 (IP66) Faceplate
Response Time: T90< 5 sec at 1 l/min sample
Display Size: 3 digit LED for O2.Dot matrix for diagnostics
Power: 110/220 VAC ±20% 50/60 Hz
Analog Communications: Serial RS-232Analog 0 - 1V ±5% and 4-20 mA
Relay Rating: 2 @ 5A/220VAC rated
Ambient Temperature: 32 to 122°F (0 to 50°C)
Humidity: 0 to 90% RH (non-condensing)
Product Dimensions (L×W×H): 13.55" × 9" × 9.15" (34.29 × 22.86 × 23.24 cm)
Product Weight: 8.5 lbs
Sensor Type: Zirconium Oxide ZR-100
Expected Sensor Service Life: >5 Years
Warranty: 1 Year
Description Part Number
Model OA-1S+ C7-01-1000-21-1
Operations manual, MN-A-0077 C5-06-4900-03-0