Rosemount™ 499ATrDO Trace Dissolved Oxygen Sensor

Rosemount

Rosemount™ 499ATrDO Trace Dissolved Oxygen Sensor

Rosemount

The Rosemount 499ATrDO sensor is a membrane-covered amperometric sensor for the continuous determination of ppb-level dissolved oxygen in water. The primary application is steam condensate and boiler feedwater.

Specifications

Measurement Range
0.00 to 20 ppb (for measurements in the ppm range, use the 499ADO sensor)
Accuracy
<20 ppb ±1 ppb
>20 ppb ±5% of readingDrift: <4% over 60 days
Ambient Temperature
Operating: 5 to 45°C (41 to 113°F)
Storage: 0 to 60°C (32 to 140°F)
Weight
1 lb/3 lb (0.5 kg/1.5 kg)

Features

  • HIGH ACCURACY: + ppb error below 20 ppb
  • RAPID STABILIZATION following calibration or maintenance.
  • EASILY REPLACEABLE MEMBRANE, no special tools required.
  • AUTOMATIC COMPENSATION FOR CHANGES IN MEMBRANE PERMEABILITY
  • VARIOPOL CONNECTOR OPTION allows the sensor to be replaced without running new cable.

Documents & Drawings

Training & Services