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Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors
Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors are high-performance amperometric sensors designed for continuous measurement of dissolved oxygen, ozone, and chlorine in industrial and water treatment processes. They provide accurate readings, rugged construction, and stable performance, even in demanding environments with minimal maintenance requirements.
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Categories: Dissolved Oxygen Meters, Water Quality
Description
The Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors are engineered using membrane-covered amperometric technology, where a gas-permeable membrane allows analyte diffusion to an internal electrode, generating a current proportional to concentration. This design ensures high accuracy and reliable measurement across a wide range of applications including wastewater treatment, drinking water systems, and industrial process monitoring. The sensors are available in multiple variants such as 499ADO (dissolved oxygen), 499ATrDO (trace oxygen), 499AOZ (ozone), and 499ACL (chlorine), each optimized for specific measurement ranges and process conditions. They include an integrated temperature sensor (Pt100 RTD) for automatic compensation, ensuring measurement stability despite temperature fluctuations.
In addition, the sensors feature a rugged, chemical-resistant construction with materials like Noryl, Viton, EPDM, Teflon, and silicone, making them suitable for harsh and corrosive environments. They offer easy maintenance with replaceable membranes and no special tools required, reducing downtime and operational cost. A built-in pressure equalization system maintains membrane tension for accurate readings under varying pressure conditions, while the optional Variopol (VP) connector allows quick sensor replacement without rewiring. With fast response times and flexible mounting options such as submersion, insertion, or flow-through installation, the 499 Series provides a dependable and efficient solution for continuous liquid analysis.
QTech Safety is a leading supplier of Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors in Ireland, offering competitive prices and fast worldwide shipping across United Kingdom (UK), Germany, France, Italy, Spain, United States USA, Canada, Mexico, and Western Australia (Perth). Buy Rosemount Dissolved Oxygen Meters from one of Ireland’s most trusted industrial safety equipment suppliers.
Features of Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors
- Membrane-covered amperometric measurement technology
- Measures dissolved oxygen, ozone, and chlorine
- Automatic temperature compensation (Pt100 RTD)
- Replaceable membrane (no special tools required)
- Pressure equalization system for stable readings
- Rugged construction with chemical-resistant materials
- High accuracy and repeatability
- Optional Variopol (VP) quick-disconnect connector
- Suitable for submersion, insertion, and flow installations
Technical Specifications of Rosemount 499 Series
- Type: Membrane-covered amperometric liquid analysis sensor
- Measurement range (DO): 0 to 20 ppm (mg/L)
- Measurement range (Trace DO): 0.1 ppb to 20 ppm
- Measurement range (Ozone): 0 to 3 ppm
- Measurement range (Chlorine): Depends on calibration (free chlorine measurement)
- Operating temperature: 0 to 50 °C (32 to 122 °F)
- Maximum pressure: 65 psig (≈4.5 bar)
- Accuracy (DO): ±0.2 ppm at 25°C
- Repeatability (DO): ±0.05 ppm
- Response time: ~25 sec (DO), ~30 sec (ozone), ~22 sec (chlorine)
- Temperature compensation: Integrated Pt100 RTD
- Sensor materials: Noryl, Viton, EPDM, Teflon, silicone
- Connector options: Integral cable or Variopol (VP) quick disconnect
- Installation: Submersion, insertion, or flow-through mounting
Dissolved Oxygen Meters Part Number & Configuration Guide
Standard (Example) Part Number
499ACL-01-54
This is a reference configuration for the Rosemount Dissolved Oxygen Meters. It represents one commonly supplied setup and helps customers understand how the part number is structured.
Configurable Part Number Format
499ACL-XX-54
Each X / XX in the part number indicates a selectable option that can be customized based on your application requirements such as Model & Calibration Certification.
✅ Important: Final part number depends on the exact configuration needed for your machinery, environment, and monitoring system.
Applications
The Rosemount 499 Series Dissolved Oxygen/Ozone/Chlorine Sensors is commonly used in industrial calibration and testing applications, including:
- Wastewater treatment aeration control
- Drinking water disinfection (chlorine monitoring)
- Ozonation systems in water treatment plants
- Power plant boiler and cooling water monitoring
- Food & beverage and pharmaceutical process control
Why Choose QTech Safety?
At QTech Safety, we’re more than just a safety supplier we’re your trusted partner in workplace protection and compliance.
Here’s why companies across UK and Ireland (EU) choose us for safety products and training:
- Comprehensive Range of Safety Equipment:
From gas detection and PPE to industrial safety tools, we offer one of the widest selections of trusted brands all at competitive Irish market prices. - Test & Measurement Instruments You Can Trust:
We supply a wide range of test and measurement instruments from the most leading and trusted brands, including industrial sensors, multimeters, oscilloscopes, accelerometers, proximity sensors, and other advanced measurement tools to support accurate diagnostics, condition monitoring, calibration, and maintenance applications. - Expert Health & Safety Training:
We provide professional health and safety training programmes designed to help your workforce stay compliant and confident on the job. - Fast, Reliable Delivery Worldwide:
Whether you’re in Texas United States or Perth Western Australia, our fast delivery service ensures you get your safety equipment quickly and efficiently. - Trusted by European Businesses:
We’re proud to support industries across Europe (UK) with certified safety solutions, expert advice, and responsive customer service.
We Ship Worldwide
At QTech Safety, we supply industrial sensors and instrumentation across Ireland, offering fast and reliable worldwide delivery. Through strong global logistics partnerships, we ensure efficient shipping and professional support for customers in Europe, North America, and Australia.
🡆 Europe (United Kingdom, Ireland, Germany, France, Italy, Spain, and the rest of European Union)
🡆 Australia (Western Australia WA, Queensland QLD, and New South Wales NSW)
🡆 North America (United States, Canada, Mexico)
