Rosemount Part No. 499ATRDO-54-70
The Rosemount 499ATrDO dissolved oxygen sensor is an easy to use amperometric sensor with a rugged construction. This sensor is ideal for measuring trace dissolved oxygen concentrations in steam power plants and in high purity cooling water.
Ease of maintenance
■ Extend sensor life with simple membrane and electrolyte replacement; no special tools needed.
■ Automatic temperature correction with integral Pt-100 resistance temperature device (RTD).
■ Easy in-air calibration.
■ Fast comedown time; an out-of-the-box Rosemount 499ATrDO sensor is accurate at the 1 ppb level within five hours after being placed in service.
■ Variopol (VP6) cable connector option eliminates cable twisting and allows for quick sensor replacement.
High performance design
■ Measures dissolved oxygen between 0.1 ppb and 20 ppm.
■ Operates in process temperatures up to 122 °F (50 °C).
■ High accuracy of ±1.0 ppb when measuring concentrations below 20 ppb.
■ Internal flexible bladder allows automatic pressure equalization for minimal influence from pressure changes on sensor response.