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Optical dissolved oxygen sensor
ADS420

Smart, reliable, accurate DO measurement made easy.

Designed to work the way you want to work, the new ADS420 utilizes the latest generation of drift-free optical measurement technology – minimizing operational costs and removing the need for routine calibration.

 

 

 

 

 

Overview
Data
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Overview

Featuring ABB's EZLink technology, users of ABB’s DO system benefit from plug-and-play connectivity, automatic sensor recognition / set-up, predictive diagnostics and enhanced measurement accuracy.

Users benefit from:
    – No calibration required 
    – No sensor drift 
    – Fast speed of response 
    – Minimized installation and maintenance time
    – Resistant to abrasion and photobleaching
    – No loss of performance, 2 year sensor cap life

Data

  • Measurement performance (dissolved oxygen)
    Range
    – 0 to 50 ppm (0 to 50 mg/l)
    – 0 to 450 % saturation at 25 °C and 760 mm Hg
  • Accuracy / maximum measured error
    – ±0.1 ppm (0 to 8 ppm)
    – ±0.2 ppm (8 to 20 ppm)
    – ±10 % of reading (20 to 50 ppm)
  • Resolution
    – 0.01 ppm (mg/l)
  • Response time
    – T90 <45 sec; T95 <60 sec @ 25 °C (77 °F)
  • Measurement performance (temperature) Range
    – 0 to 50 °C (32 to 122 °F)
  • Accuracy
    ±0.1 °C (0.18 °F)
  • Maintenance
    – Sensor cap replacement
    24 months
  • Environmental data
    – Operating temperature range
       0 to 50 °C (32 to 122 °F)
    – Pressure limit
       10.3 bar (150 psi) maximum
    – Flow rate
       None required
    – Storage temperature range
       –5 to 60° C (23 to 140° F)

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