In-Line (Insertion) Dissolved Oxygen Sensors
Description
In-Line (Insertion) Dissolved Oxygen Sensors are devices designed to measure the concentration of dissolved oxygen in a liquid. These sensors are typically integrated into a pipeline or tank, allowing for continuous monitoring of oxygen levels within the system. The sensor assembly includes components such as electrodes, electrolyte solutions, membranes, and thermistor thermometers, which work together to provide accurate oxygen concentration readings.
Working Principle
In-Line Dissolved Oxygen Sensors operate based on the diffusion of oxygen through a membrane. The oxygen diffuses at a rate proportional to its partial pressure, and this diffusion is measured as a current when oxygen is reduced at the cathode. The current is directly proportional to the concentration of dissolved oxygen, allowing the sensor to convert this measurement into concentration units. This principle is useful because it provides real-time, continuous monitoring of oxygen levels, which is crucial for maintaining process efficiency and ensuring optimal conditions in various industrial applications.
Applications
These sensors are widely used in industries where maintaining specific oxygen levels is critical. For example, in wastewater treatment, they help monitor and control the oxygen levels to optimize the treatment process. In wine production, they ensure the correct oxygen concentration to prevent spoilage and maintain quality. They are also used in bio-reactions, such as aquaculture, where oxygen levels are crucial for the health of aquatic organisms, and in environmental testing to monitor water quality.
Advantages over other Dissolved Oxygen Sensors
In-Line Dissolved Oxygen Sensors offer several advantages over other types of sensors. They can be permanently installed in a process, allowing for continuous monitoring without the need for frequent recalibration or maintenance. They are also capable of measuring oxygen levels in both flow and static conditions, making them versatile for different industrial setups. Additionally, these sensors can be cleaned or sterilized in place using high heat or chemicals, which reduces downtime and maintenance efforts.
Limitations
One limitation of In-Line Dissolved Oxygen Sensors is the potential for membrane degradation over time, which can affect accuracy. Handling errors during membrane replacement, such as not properly removing electrolyte drops, can lead to membrane blow-out, further impacting accuracy. Additionally, the sensors may require specific installation conditions to ensure optimal performance, which can limit their use in certain environments.
Considerations
When considering the use of In-Line Dissolved Oxygen Sensors, it is important to evaluate initial costs, which can vary depending on the complexity and features of the sensor. Operating expenses may include regular maintenance and calibration to ensure accuracy. Durability is a key factor, as sensors exposed to harsh conditions may require more frequent replacement. Accuracy is critical, and users should be aware of potential factors that can affect sensor performance, such as membrane condition and installation environment. Replacement and maintenance costs should also be considered, as these can impact the overall cost-effectiveness of the sensor over its lifespan.
from Hamilton Company
The VisiTrace DO is designed to measure dissolved oxygen in the low ppb range in brewing applications, notably during filtration and filling. Adjacent markets are also boiler feed water in power plant . The VisiTrace DO offers all the advantages of Hamilton`s optical dissolved oxygen sensors: fast... [See More]
- Mounting: In-Line (Insertion)
- Response Time: 20 to 90
- Oxygen Range: 0.0 to 2
- Maximum Diameter/ Width: 0.4724
from ABB Measurement & Analytics
Featuring ABB's EZLink technology, users of ABB ’s DO system benefit from plug-and-play connectivity, automatic sensor recognition / set-up, predictive diagnostics and enhanced measurement accuracy. Users benefits from: – No calibration required. – No sensor drift. – Fast... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 0.1000 to 10
- Oxygen Range: 0.0 to 50
- Response Time: 45 to 60
from HF scientific
Connect this Dissolved Oxygen sensor to a PLC for seamless integration with industrial control systems. Use any computer to display data, calibrate and customize the measurement without an intermediate analyzer electronics box. A LD500 local display can be used if desired. Sensor heads are... [See More]
- Mounting: In-Line (Insertion)
- Oxygen Range: 0.0 to 40
- Cell Type: Polarographic
- Response Time: 90
from Mettler-Toledo Technologies GmbH
Anti-Bubble Dissolved Oxygen Sensor. The InPro 6860i/12/120/mA/HD is an optical dissolved oxygen sensor with a mechanically modified hydrophilic surface. Combined with its tilted design, it prevents bubble accumulation, creating a highly stable measurement signal. Increased Yield and Product... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 1
- Oxygen Range: 0.0 to 600000
- Maximum Length: 4.72
from Emerson Automation Solutions – Rosemount
The Model 499ADO is a membrane-covered amperometric sensor. It is intended primarily for the determination of dissolved oxygen in wastewater aeration basins. EASILY REPLACEABLE MEMBRANE, no special tools required. AUTOMATIC AIR CALIBRATION. AUTOMATIC COMPENSATION FOR CHANGES IN MEMBRANE... [See More]
- Mounting: In-Line (Insertion)
- Oxygen Range: 0.0 to 20
- Cell Type: Galvanic
- Response Time: 25
from SWAN Analytical USA, INC.
Sensor for the measurement of dissolved oxygen in the ppm range in water treatment technology. Features. Precise oxygen measuring cell with integrated temperature measuring. Automatic monitoring of diaphragm integrity and electrolyte exhaust. Easy calibration, excellent life time (up to 2 years of... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 0.3000
- Oxygen Range: 20
- Response Time: 180
from MO2 Inc.
The GEN III 5000 series, part of OxySense ’s newest line of of non-invasive oxygen monitoring and permeation systems, is the oxygen measurement instrument of choice for labs and individuals who need to test or evaluate bottles, packages and other packaging materials through a variety of... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 5
- Oxygen Range: 0.0150 to 300000
- Response Time: 1
from HF scientific
The AdvantEDGE sensor uses the latest technology to measure dissolved oxygen (DO) in demanding environments. The AdvantEDGE Series ™ Optical Dissolved Oxygen RDO ® sensor o ffers several advantages for monitoring DO in process applications. [See More]
- Mounting: In-Line (Insertion)
- Response Time: 30
- Oxygen Range: 0.0 to 20
- Operating Temperature Range: 32 to 122
from Mettler-Toledo Technologies GmbH
High operational availability, top performance and easy maintenance. InPro6960i designed for brewery application offers high operational availability, top performance and easy maintenance for the measurement of dissolved oxygen in wort aeration in breweries. The optical oxygen sensors are easy and... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 1
- Oxygen Range: 0.0080 to 25
- Operating Pressure Range: 174
from Emerson Automation Solutions – Rosemount
AVAILABLE IN FOUR LENGTHS between 120 and 425 mm. PG 13.5 PROCESS CONNECTION. TOLERATES REPEATED STEAM STERILIZATION. SENSOR RESPONSE PRACTICALLY INDEPENDENT OF FLOW. FAST RESPONSE TIME. The Model GX448 sensor is a membrane-covered amperometric sensor designed to meet the demanding requirements of... [See More]
- Mounting: In-Line (Insertion)
- Oxygen Range: 0.0 to 20
- Cell Type: Polarographic
- Maximum Diameter/ Width: 0.4724
from SWAN Analytical USA, INC.
Swansensor Oxytrace for SOLO Oxytrace. Swansensor Oxytrace oxygen sensor with 1m cable, 50 ml electrolyte and 2 replacement membranes. [See More]
- Mounting: In-Line (Insertion)
from MO2 Inc.
Our base model offers the ideal solution for conducting non-invasive or invasive measurements in oil, water or air. The OxySense ® GEN III 300 series, which requires a computer interface, will perform most of the functions of the 5000 series including non-invasive headspace analysis for... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 5
- Oxygen Range: 0.0150 to 300000
- Response Time: 1
from Mettler-Toledo Technologies GmbH
Tunable Diode Laser for O ₂ Measurement. The GPro ® 500 oxygen gas analyzer is a unique tunable diode laser spectrometer designed for safety applications. It uses a folded-path laser beam design for simple installation and measurement. Fast Response In Safety Applications. An oxygen gas... [See More]
- Mounting: In-Line (Insertion)
- Operating Pressure Range: 11.6 to 72.52
- Accuracy: 2
from SWAN Analytical USA, INC.
Low level oxygen sensor (Clark Cell) with three electrodes (cathode, anode and guard) with built-in temperature probe, pre-filled and pre-mounted sensor cap. Features. Sensor guard for shorter run-in time and no zero current. Easy maintenance due to sensor cap design. No exposed metallic surfaces,... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 0.3000
- Oxygen Range: 20
- Response Time: 30
from Mettler-Toledo Technologies GmbH
Fast Response, Reduced Maintenance. METTLER TOLEDO Thornton's Pure Water Optical Dissolved Oxygen Sensor with ISM has been designed specifically for demanding power plant and microelectronics applications. Low maintenance optical measurement technology provides exceptional measurement accuracy,... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 2
- Oxygen Range: 8.00E-4
- Operating Pressure Range: 0.2000 to 2.9
from SWAN Analytical USA, INC.
Including 50ml filling solution, 3 spare membranes and sealing screw with O-Ring. [See More]
- Mounting: In-Line (Insertion)
from Mettler-Toledo Technologies GmbH
Accuracy at low oxygen level. METTLER TOLEDO ’s InPro6900i is the intelligent counterpart for the InPro6900, the proven standard especially in food and beverage applications for low oxygen concentrations. The special electrode design with guard ring around the cathode together with the larger... [See More]
- Mounting: In-Line (Insertion)
- Accuracy: 1
- Cell Type: Polarographic
- Operating Pressure Range: 174