When it comes to measuring high concentrations of ozone in oxygen or air, accuracy and dependability are paramount. The Model 452 gas sensor excels in these areas, offering users a compact yet powerful solution that operates with precision. Ideal for process applications, this sensor is designed to deliver accurate readings, minimize maintenance, and integrate seamlessly into a wide range of setups.
Advanced Measurement Principle: UV Absorption Technology
The heart of the Model 452 is its measurement principle, which leverages the absorption of ultraviolet (UV) light at 254 nm to detect ozone concentrations. This approach is known for its high sensitivity and reliability. The sensor provides readings in % by weight (w/w) or grams per Normal cubic meter (g/Nm³), making it versatile for a variety of applications.
Additionally, the Model 452 comes standard with temperature and pressure compensation (up to 3 Bar Absolute, depending on the range). This feature ensures that environmental changes do not affect the accuracy of the measurements, allowing for dependable readings across a broad spectrum of conditions.
Compact Design with Simplified Flow Pattern
Space is often at a premium in industrial settings, and the Model 452 addresses this with its compact design, occupying only a 12.3 square inch footprint. Installation is straightforward thanks to its streamlined straight-through flow pattern. This design eliminates the need for turns or elbows, significantly reducing the exposed surface area and minimizing any potential for contaminants to interfere with measurements.
High-Precision Detectors for Long-Term Stability
One of the standout features of the Model 452 is its dual-detector setup. The first detector is responsible for measuring the ozone concentration, while the second compensates for any fluctuations in the UV lamp’s intensity. This dual-detector design ensures that the sensor maintains accuracy over long periods without the need for frequent recalibration or maintenance. Furthermore, the narrow spectral sensitivity of the detectors eliminates the need for UV band pass filters, which are prone to deterioration under prolonged exposure to UV light or humidity.
Flexible Output and Status Monitoring Options
The Model 452 is designed for easy integration into a wide range of systems, offering both analog and digital (RS485/RS232) outputs. Additionally, it features four opto-isolated status outputs that allow users to monitor key aspects of the sensor’s operation. These outputs provide real-time alerts on sensor status, lamp intensity, cell cleanliness, and any invalid readings, helping to ensure smooth operation and rapid troubleshooting in case of issues.
Connections for power input and input/output are conveniently provided through a 15-pin D-sub connector. This simplifies installation and maintenance, allowing users to focus on what matters most: reliable gas measurement.
High Purity Applications and Additional Features
For applications requiring the highest levels of purity, the Model 452 offers a manifold made from 316L stainless steel with a 10 Ra finish and 1/4” VCR fittings. This makes it an ideal solution for industries such as semiconductor manufacturing, where contamination must be minimized.
The sensor comes with a standard one-year warranty, ensuring peace of mind for users. It is available in various ranges from 0-5% to 0-20% w/w, and from 0-100 to 400 g/Nm³, making it adaptable to different measurement needs. Optional accessories, such as an AC power adapter, external ozone destructor, and external particulate filter, further enhance its flexibility.
Key Features at a Glance:
- Compact design with a small 12.3 in² footprint
- Temperature and pressure compensation up to 3 Bar Absolute
- Narrow band detector eliminates the need for UV filters
- Analog and RS485/RS232 outputs for flexible data integration
- Opto-isolated status outputs for operational monitoring
- High purity version available, with 316L stainless steel manifold and 10 Ra finish
- Standard one-year warranty for reliability and peace of mind
Technical Specifications:
- Measurement Ranges: 0–5, 0–10, 0–15, 0–20% w/w, or 0–100, 200, 300, 400 g/Nm³
- Pressure Compensation: Up to 3 Bar Absolute
- Proof Pressure: 115 psia
- Repeatability: 1% of full scale
- Response Time: 2 seconds to 95%
- Operating Temperature Range: 5 to 45°C
- Wetted Materials: 316 Stainless Steel, PTFE, Sapphire
- Flow Range: 0.5 to 5 LPM
- Power Requirements: +15V @ 1.5A max
- Analog Output: 0–5V Full Scale
- Dimensions: 5.13″ x 2.13″ x 6.69″
- Weight: 2.8 lbs (1.27 kg)
Conclusion
The Model 452 gas sensor is the perfect solution for industries that require precise, reliable, and low-maintenance ozone measurement in oxygen or air. Its robust design, advanced UV absorption technology, and flexible output options make it a valuable tool for process applications, particularly in settings where high purity is essential. With temperature and pressure compensation, extended operational stability, and a compact footprint, the Model 452 is a dependable choice for high-concentration ozone monitoring.
You can find this product here: https://www.gas-sensing.com/api452.html
