API-452 : Process Ozone Sensor

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Product Overview

This is a microprocessor-based gas sensor, designed for measuring high concentrations of ozone or oxygen in air with accuracy and dependability. The measurement principle is based on the absorption of UV light at 254nm. Readings are available in percent by weight, or grams/normal cubic meter. It's compact size allows for easy installation in process applications. Two detectors are used in this system, one for the ozone measurement, and the other to compensate for changes in UV lamp intensity. This unique design provides a sensor which will operate for extended periods without calibration or maintenance. Review the manual here.

The API-452 also accepts a wide range of flow rates, from 0.5 - 5 LPM, allowing its use for a wide variety of applications.


  • Compact ozone process controller (12.3 in2 footprint)
  • Ranges from 0-5% to 0-20% w/w available
  • Temperature and pressure compensated
  • Units available in weight % or grams/Nm3
  • Available for high-purity applications
Optional Accessories Description
FM-6-2 Ozone Compatible Flowmeter Designed for specifically for corrosive ozone gas flow-rates, this flow-meter is a precision instrument embodying the inherent simplicity, versatility and economy of the classical variable area meter.
ODS-1 Destruct Unit This is an inexpensive ozone destruct unit, made for removing high concentrations of ozone efficiently.
Weight 2.8000
Electrical 15 VDC
Dimensions 5 x 2 x 7 inches (12.7 x 5.1 x 17.8 cm)
Warranty 1 Years
Display None
Detection Method UV Absorption
Temperature Range 41 to 113°F (5 to 45°C)
Accuracy +/- 1% of Full Scale
Resolution 0.0 ppm (0.0 ppb)
Supporting Documents User Manual & NIST Traceable Calibration Sheet Included
Internal Datalogging no
Display Units None
Communication Protocol RS-232
Zero Drift 1% Full Scale / month (non-cumulative)
LPM Flow Rate 5 LPM
Relays 0
Integrated Pump no
Portability no

What is the maximum amount of tubing I can use to transport ozone to the analyzer?

30 feet of tubing would be the maximum length of tubing recommended.