Description
The ABB 4641/800 is a highly accurate, wall-mounted Dissolved Oxygen (DO) Monitor and Transmitter designed for demanding water quality analysis. It is engineered to provide continuous, precise monitoring of oxygen levels in water, making it a critical tool for municipal water treatment, wastewater processing, and industrial power plant cycle chemistry. The system is known for its robust construction, long-term sensor stability, and ability to withstand harsh environmental conditions while delivering reliable data for automated process control.

Technical Specifications
| Specification | Details |
| Brand | ABB (Kent / Analytical) |
| Model | 4641/800 |
| Measurement Type | Dissolved Oxygen (DO) |
| Input/Output | 4–20 mA isolated analog output / Relay contacts |
| Function | Continuous water quality analysis and transmitter |
| Accuracy | High-precision electrochemical sensing |
| Enclosure | Industrial-grade / IP65 protected |
| Product Color | Industrial Gray / ABB Standard |
Product Features
- 💧 Precision Sensing: Utilizes an advanced electrochemical sensor design that provides high sensitivity and low detection limits, essential for process regulation.
- 🛡️ Rugged Reliability: Housed in a durable, weather-resistant enclosure designed for mounting in challenging indoor and outdoor industrial environments.
- ⚙️ Easy Maintenance: Features a simplified sensor membrane replacement process, significantly reducing calibration time and technical overhead.
- 📊 Integrated Display/Control: Equipped with a clear digital readout and intuitive local controls, providing operators with real-time process visibility.
- 🔌 Flexible Signal Output: Offers reliable 4–20 mA current loops, allowing for seamless integration into existing SCADA or PLC control systems for closed-loop oxygen management.
Recommended Similar Models (ABB Water Analysis Series)
- ABB 4640 (DO Transmitter)
- ABB 4642 (High-accuracy DO unit)
- ABB 4645 (Multi-parameter analyzer)
- ABB 4680 (pH/Redox transmitter)
- ABB 4685 (Conductivity transmitter)
- ABB AX400 Series (Analytical Transmitters)
- ABB AWT210 (Two-wire transmitter)
- ABB AWT440 (Universal transmitter)
- ABB 9460 Series (Conductivity/Resistivity)
- ABB 9470 Series (pH/ORP)
For technical manuals, calibration procedures, or to check availability for this ABB 4641/800 Dissolved Oxygen Monitor, please visit our product portal for comprehensive industrial support.

