COA451 Dissolved Oxygen Measurement Mounting Bracket Overview
The COA451 is a retractable dissolved oxygen measurement mounting bracket launched by Endress+Hauser (E+H), specifically designed for water, wastewater, and public water applications. Its core features include a locking bolt, O-ring seals, and a ball valve, which achieve complete separation between the sensor chamber and the process, allowing sensor connection, cleaning, and maintenance without interrupting measurement.
This bracket is suitable for dissolved oxygen sensors with a diameter of 40 mm, can significantly improve process safety and reduce maintenance workload, and is a key component of industrial dissolved oxygen measurement systems.
Product Specifications and Technical Parameters
The COA451 features a rugged design suitable for a variety of industrial environments. The following are its main technical parameters:
| Parameter | Specification |
|---|---|
| Measurement principle | Dissolved oxygen sensor |
| Application areas | Process measurement, water and wastewater treatment, drinking water, surface water monitoring, fish farms |
| Design | Process mounting bracket with manual ball valve and rinse water connection |
| Bracket material | Stainless steel 1.4404 (AISI 316L) |
| Pressure reducing valve and rinse connection material | Nickel-plated brass |
| Seal material | Viton |
| Insertion depth | 170 mm or 270 mm |
| Process temperature | Up to 80°C |
| Process pressure (manual operation) | Maximum 2 bar |
| Medium pressure | Maximum 10 bar |
Note: The maximum process pressure for manual operation of the mounting bracket is 2 bar, while the medium pressure can reach 10 bar. The actual working conditions must be confirmed during selection.
Application Scenarios
The COA451 retractable bracket is suitable for dissolved oxygen measurement in all fields, especially the following occasions:
- Wastewater treatment plants: O2 aeration tank control, process water treatment and monitoring
- Tap water plants: Drinking water status monitoring, river, lake, or ocean water quality monitoring
- Utilities: O2 biological treatment process control, process water treatment and monitoring
- Fish ponds: O2 growth condition optimization control
Its universal design enables "one bracket for multiple uses," helping optimize inventory, accelerate project progress, and simplify lifecycle management.
Product Advantages
The COA451 has multiple advantages in design and function, making it an ideal choice for dissolved oxygen measurement:
- High versatility: Suitable for various applications, reducing inventory types and simplifying management.
- Simple and safe maintenance: Sensor maintenance and cleaning require no process interruption, improving operational safety.
- Rugged construction: Process pressure up to 10 bar (145 psi), manual operation up to 2 bar (29 psi).
- Time-saving and efficient: Equipped with a rinse connection, sensor cleaning requires no disassembly.
Installation and Maintenance Precautions
To ensure long-term stable operation of the COA451, the following points should be noted:
- Regular calibration: Ensure measurement accuracy and reliability.
- Follow operating specifications: During installation and use, strictly follow the manufacturer's operating instructions and safety specifications to ensure the safety of equipment and personnel.
- Avoid interfering environments: Avoid use in environments with strong vibration or magnetic interference to prevent impact on measurement accuracy.
- Regular cleaning and maintenance: Keep the equipment appearance and interior clean, check for damaged or worn parts, and replace them promptly if necessary.
- Follow manufacturer recommendations: During maintenance, follow the manufacturer's recommendations and specifications to avoid damage to the equipment.
For more information, it is recommended to consult relevant experts or refer to the product manual.
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