Teledyne Instruments, Inc.
9970 Carroll Canyon Road,
San Diego, CA 92131, USA
Toll free: 1-800-798-4029
Phone: (1) 781-444-2929
E-mail: api-sales@teledyne.com

 
Model L2-RM Pinpoints Leaks in an Ozone-Containing Enclosure
May 7, 1996

IN USA, Inc. has started shipping the Model L2-RM, the first continuous, on-line ozone analyzer designed specifically to measure and pinpoint ozone (O3) leaks inside a cabinet or enclosure housing an ozone generator and/or process. The Model L2-RM combines state-of-the-art sensor design, microprocessor-based measurement and control circuitry, dual UV (ultraviolet) sensor measurement, and numerous other features in a compact package that mounts inside an enclosure with minimal space requirements.

Ozone is now being used in numerous industrial processes in water and wastewater treatment, semiconductor manufacturing, pulp and paper manufacturing, and many other industries. It has become increasingly necessary to quickly and reliably measure and pinpoint leaks in enclosed areas around ozone generators and processes. The Model L2-RM measures the ambient ozone inside an ozone-containing enclosure over the range of 0 to 10 ppm. Using a new and innovative sensing technique (patent pending), the Model L2-RM provides real-time, enclosure-specific ozone leak detection that allows the user to quickly pinpoint the exact location of a leak, prevent unnecessary and expensive shutdowns due to false alarms from background contaminants, and insure worker safety.

The Model L2-RM is designed for fast response, ease of use, and reliability. Unlike electrochemical-based ozone sensors, the Model L2-RM makes a primary measurement of ozone concentration that is absolutely ozone-specific and enclosure-specific. In addition, the unique, dual UV sensor arrangement compensates for background contaminants and for potentially interfering vapors and other organic compounds that could be present. The UV lamp is thermostatically-controlled to compensate for aging effects, has a minimum operating life of two years, and is easily replaced in the field when necessary. A built-in catalyst completely eliminates the sample ozone, thereby prolonging sample pump life for many years and permitting easy disposal of the sample gas. The Model L2-RM is factory calibrated to 1% repeatability, provided with a certificate of calibration traceable to NIST, and is self-calibrating during operation. It also provides continuous internal diagnostics and outputs user-friendly status messages.

The Model L2-RM is designed for versatility in a wide variety of installations. Standard features include an alphanumeric vacuum fluorescent display, 0-10 VDC and 4-20 mA analog outputs, bi-directional RS232 digital communications, and three FORM C alarm relays (two are user programmable). The Model L2-RM is supplied in compact, space-saving bench-top and 19" rack (3U height) mounting configurations. Two units may be mounted side-by-side in a standard 19" rack.

The Model L2-RM is part of the AFX® Series of ozone instrumentation designed and manufactured by IN USA, Inc. in Needham, MA. IN USA, Inc. is a recognized world leader in Ozone Instrumentation and Control and offers a complete line of instruments for measurement of ozone in air and liquid phases, including process ozone (high concentrations), ambient ozone (low concentrations), stack gas ozone (low concentrations), and dissolved ozone in water.
 
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