Dissolved Oxygen Analyzer Monitors Boiler Feed Water

Oct. 16, 2014
The sensor's measurement range is from 0.001 to 20.00 milligrams per liter

The Model DO90 trace dissolved oxygen (DO2) analyzer offers reliable and effective monitoring of boiler feed water. Oxygen should only be present in trace quantities in boiler feed water, as excessive concentrations of oxygen can result in corrosion damage to the components of the steam cycle. Boiler feed water is thermally and chemically degassed to achieve oxygen-free water, a state that must be maintained throughout the steam cycle.

The Model DO90 trace DO2 sensor is a lead-silver galvanic sensor with a durable PFA Teflon membrane. All of the signal conditioning, calibration and diagnostic functions are performed and stored inside the sensor. The Model DO90 flow cell has been specially designed for use with the sensor. The orientations of the inlet and outlet sample lines automatically purge air from the flow cell. The measurement chamber is optimized for fast response and all wetted parts are 316L stainless steel. The DO90 sensor is compatible with ECD’s T80 transmitter, which also works with the full range of Model S80 sensors.

The sensor offers a large measurement range, from 0.001 to 20.00 milligrams per liter. Long-term stability means that drift is less than 1% per month. Needing virtually no maintenance, the DO90 sensor has an easily replaceable electrode cartridge, eliminating the need for messy electrolyte/membrane replacement kits.

The Model DO90 trace DO2 sensor is available as separate components, sensor, fittings, flow cell and Model T80 transmitter or as a complete panel-mounted system. The panel mount system is a plumb-and-play device. Installation of the flow cell is also easy, using either the clamp style holders for wall mount or the two 10 x 32 threaded ports on the backside of the flow cell for panel mounting.

Contact Us
Electro-Chemical Devices
Irvine, CA
800.729.1333
www.ecdi.com
[email protected]

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