01
Overview
The ADS420 uses optical luminescence sensing to measure dissolved oxygen without a membrane or electrolyte. A factory-calibrated SmartCap and digital connection simplify commissioning while helping the sensor maintain stable performance between service intervals.
02
Key characteristics
- 01EPA-certified optical technology
- 02Plug-and-play digital connection
- 03Drift-resistant SmartCap design
- 04In-situ cleaning options
03
Technical specifications
- Measured parameter
- Dissolved oxygen
- Measurement principle
- Optical luminescence
- Measurement range
- Up to 50 mg/L DO
- Operating pressure
- 10.342 bar (150 psi) at 0 to 50 °C; confirm other pressure-temperature conditions with ABB
- Wetted construction
- PVDF probe body; titanium temperature sensor; PC/PMMA SmartCap
- Connection
- Plug-and-play digital sensor connection
- Maintenance options
- In-situ air or water cleaning systems
04
Applications
- Municipal water
- Industrial wastewater
- Effluent monitoring
05
Selection notes
- 01
Confirm the expected dissolved-oxygen range, salinity and solids loading.
- 02
Select the mounting assembly, cable length and cleaning method around the installation point.
- 03
Verify compatibility with the selected ABB transmitter before ordering.
