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Rosemount™ 499ATrDO Trace Dissolved Oxygen Sensor
The 499ATrDO delivers highly accurate ppb level oxygen monitoring with fast stabilization for minimal downtime.
Its low maintenance, tool free design and pressure equalizing features ensure long term reliability, while automatic temperature compensation maintains accuracy under changing conditions. Flexible cabling and VP6 connector options make integration easy, and the sensor is ideal for boiler feedwater, steam condensate, high purity water, and other processes requiring trace level oxygen detection.
Rosemount™ 499ATrDO Trace Dissolved Oxygen Sensor

Specs

Accuracy
<20 ppb ±1 ppb
>20 ppb ±5% of reading Drift: <4% over 60 days
Materials of Construction
Wetted Materials: Noryl™, Viton™, Teflon (TFE) and silicone
Measurement Range
0.1 ppb to 20 ppm
Pressure Range
0 to 65 psig (101 to 549 kPa abs)
Temperature Range
32 to 122 °F (0 to 50 °C)

Features

  • High accuracy of ±1.0 ppb when measuring concentrations below 20 ppb
  • Rapid stabilization following calibration or maintenance
  • Easily replaceable membrane with no special tools required
  • Automatic compensation for changes in membrane permeability
  • Variopol (VP) connector options allows the sensor to be replaced without running new cable