The 873DO analyser is used with an 871DO sensor for parts-per-million measurements of dissolved oxygen in aeration basins, industrial and municipal wastewater treatment plants, and aquaculture applications.
Each 873DO analyser provides two analog output signals (4-20 mA, 0-10 V, 0-20 mA) and two alarm relays. When used with the 871DO sensor, the 873DO offers several sensor diagnostic features.
The analyser periodically monitors the sensor for membrane fouling, membrane breakage, and loss of internal filling solution. Calibration of the 873DO is quick and simple, achieved by allowing the sensor to stabilize in ambient air.
A choice of plastic, panel-mount or metal, field-mount enclosure is available.