Key Specifications
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Input
Single-channel transmitter
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Output / Communication
0/4-20mA, HART, Profibus
Applications
The Liquisys COM223 is a versatile transmitter designed for use with COS41 and COS61 oxygen sensors. It enhances process reliability through continuous verification of sensor and system integrity. Customize it with various hardware and software options, including relays or fieldbus interfaces, to meet specific measurement requirements. Its modular architecture enables future upgrades. Intuitive menus and straightforward calibration ensure effortless setup and operation.
This transmitter is compatible with Oxymax COS41 and COS61 dissolved oxygen sensors, making it ideal for environmental monitoring applications such as:
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Aeration tank oxygen regulation
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Drinking water oxygen monitoring
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Surface water quality assessment
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Industrial water treatment processes
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Aquaculture oxygen control for optimal fish growth
The Liquisys COM223 supports multiple communication protocols:
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0/4…20 mA analog output
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HART protocol
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PROFIBUS DP
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PROFIBUS PA
Advantages
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Enhanced process safety: Continuous system monitoring, customizable alarms, and calibration verification
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Precise oxygen management: Flow rate monitoring input for system shutdown or feedforward control
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User-friendly operation: Simplified calibration in air, saturated water, or process medium with manual override capability
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Minimized maintenance: Automated cleaning (with Chemoclean) activated by alarms or limit switches
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Universal adaptability: Expandable with PID controllers, timers, and other modules for diverse process requirements
