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E+H Liquisys COM223 Industrial Panel-Mount Dissolved Oxygen Transmitter
COM223-DX0005
The COM223 Dissolved Oxygen Transmitter is a compact, panel-mounted analyzer engineered for real-time water quality monitoring and process control. Featuring a 96x96 mm housing, automatic temperature compensation, continuous self-diagnostics, and versatile 4–20mA, HART, or Profibus signal outputs, it provides high-precision dissolved oxygen measurement for industrial wastewater treatment, aquaculture, and process water applications.
The COM223 Dissolved Oxygen Transmitter is an industry-proven, high-precision panel-mounted analyzer engineered for real-time liquid analysis in industrial water treatment and process engineering. Featuring a compact 96 x 96 mm panel housing, the COM223 provides continuous, reliable dissolved oxygen (DO) monitoring and automated process control, making it an ideal core instrument for control cabinets, skid systems, and automated water management plants.
Designed with operational safety and adaptability in mind, the COM223 transmitter features an advanced Process Check System (PCS) that constantly monitors sensor integrity and signal validity. Its intuitive two-line backlit LCD display provides clear, immediate readouts of oxygen concentrations, saturation percentages, and process temperatures simultaneously.
Integrated continuous self-diagnostic functions check for sensor fouling, signal drift, and cable breaks, triggering automatic relay alarms or system shut-offs to protect your downstream operations.
Beyond simple monitoring, the COM223 can be customized with P(ID) controllers, timers, and Limit Contact switches, allowing direct control of aeration blowers, dosing pumps, or oxygen feed systems.
Supports automatic spray/cleaning triggers (Chemoclean function) activated by timers or alarm thresholds, drastically reducing manual maintenance intervals and lowering total cost of ownership (TCO).
Easily retrofitted or upgraded with multiple hardware/software modules, including isolated current outputs and fieldbus protocols (HART / PROFIBUS), ensuring direct connectivity to modern SCADA and PLC architecture.
FAQ
Q1: What sensors are compatible with the COM223 transmitter?
A: The COM223 is designed to work seamlessly with standard amperometric oxygen sensors such as the Oxymax COS41 (membrane-covered) and Oxymax COS61 (optical) dissolved oxygen sensors.
Q2: How easy is it to calibrate the COM223 DO Transmitter?
A: Calibration is fast and straightforward. It supports simple single-point calibration in ambient air, air-saturated water, or directly in the process medium via manual input.
Q3: Can the COM223 automatically trigger sensor cleaning?
A: Yes, the transmitter features an automatic cleaning contact function (Chemoclean) that can be triggered by internal timers or specific alarm/limit switches to clean the attached DO sensor automatically.
Q4: Do you offer OEM/ODM customization and industrial panel integration support?
A: Yes! As a professional manufacturer, we offer custom panel-mount analyzers, custom hardware configurations, OEM branding, and complete water quality instrumentation solutions for global distributors and system integrators.
Spécifications techniques
| Measurement Principle | Dissolved Oxygen Sensor |
|---|---|
| Application | Water, Wastewater, Process |
| Features | Four-wire transmitter with two-line display |
| Design | Dissolved oxygen transmitter in panel-mount housing |
| Material | Panel-mount housing |
| Dimensions | 96 mm × 96 mm × 146 mm (installation depth) 3.74 × 3.74 × 5.61 in (installation depth) |
| Temperature Sensor | Display and current output |
| Connection / Protection Rating | IP65 |
| Input | Single-channel transmitter |
| Output | 0/4...20 mA, HART, PROFIBUS |
| Other Certificates | CSA General Purpose Certification |
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