A common application for a high concentration ozone analyzer is to monitor and control ozone generator output. The required ozone purity, concentration, and output flow rate determine the requirements for both the ozone generator and the ozone analyzer. The ozone analyzer must accurately monitor and control the ozone generator output in order to provide reliable downstream process control and to ensure efficient ozone generator operation.

IN USA offers several analyzers to measure high ozone concentrations. All models use the proven UV (ultraviolet) absorption technique to make the measurement. Some models use IN USA's patented dual-path UV measurement technique, which has no moving parts and has revolutionized ozone measurement by virtually eliminating the need for a reference measurement.

Typical product features include:

Ozone measurement from 0 to 900 g/m3
In-line/full-flow or side-stream operation
Units of measurement g/m3, g/Nm3, %w/w, %v/v, ppmv
Built-in ozone destruct capability
Pressure, temperature, and molecular weight compensation
Microprocessor-based electronics
Analog and digital outputs
Semiconductor-grade wetted materials for high purity applications
Wall, bench top, panel-mount, and rack-mount configurations
Ultra-compact enclosures
CE compliance

The measurement of ozone in off-gas is challenging, primarily because the off-gas sample is wet and saturated with water vapor. IN USA offers several analyzers and sampling conditioning systems that can continuously monitor ozone concentration in off-gas and provide automatic control of equipment, such as ozone generators and alarms. All analyzers use the proven UV (ultraviolet) absorption technique to make the measurement. Some models use IN USA's patented dual-path UV measurement technique, which has revolutionized ozone measurement by virtually eliminating the need for a reference measurement.

In most off-gas applications, IN USA provides a complete sampling and conditioning system that:

draws the sample gas into the analyzer, via built-in pump and flowmeter
removes water droplets and mist from the sample
removes water vapor and lowers the sample gas dew point
provides continuous and low maintenance gas sampling

Typical product features include:

Ozone measurement from 0 to 10000 ppmv (~21.5 g/m3)
Units of measurement g/m3, g/Nm3, %w/w, %v/v, ppmv
Ozone destruct unit on exhaust stream
Pressure, temperature, and molecular weight compensation
Microprocessor-based electronics
Analog and digital outputs
Wall, bench top and rack-mount configurations
CE compliance

Above certain concentration levels, ozone is a toxic and corrosive gas. Therefore, the need to detect ozone leaks in the workplace and to measure ambient (TLV) ozone levels to meet OSHA requirements. Ozone safety analyzers and leak detectors are typically used in areas around ozone generators, gas chambers, vent gas (post-destruct) systems, gas delivery systems, and inside semiconductor tools.

IN USA offers a complete line of analyzers to measure ambient ozone and detect ozone leaks to meet OSHA requirements. Also available is a portable, battery-operated ozone spot checker that features a solid-state ozone sensor. All other models use the proven UV (ultraviolet) absorption technique to make the measurement. UV absorption is specific to ozone, provides stable readings at the low end and requires no consumables. Some models employ a patented ratiometric ozone measurement technique that pinpoints the exact location of a leak in applications with several potential leak sources.

Typical product features include:

Measurement ranges of 0 to 1, 0 to 10, 0 to 1000 ppmv and others
Built-in pump and flowmeter
Pressure and temperature compensation capability
Flow sensor
Microprocessor-based measurement and control
"Smart" diagnostics
Continuous auto-zeroing
Analog and digital outputs
Dual, field-programmable alarms
Multipoint measurement, with built-in, field-programmable manifold/sequencer
NEMA-4X wall mount, bench top and rack-mount configurations
CE compliance

Whether the application involves the measurement of dissolved ozone in ultrapure water or in wastewater, IN USA has several dissolved ozone analyzers to meet the requirements. IN USA's dissolved ozone analyzers measure ozone from ppb levels up to 150 ppm or more. Some models are designed for ozone measurement in ultrapure and deionized water (or other liquids) and can be installed in-line in a full-flow, single pass or recirculating stream. Other models are ideal for harsh and dirty applications such as wastewater or other liquids with large amounts of particulates. In this case, a side-stream measurement is ideal for sampling.

All models use the proven UV (ultraviolet) absorption technique to make the measurement. UV absorption is specific to ozone and provides stable readings, even at ppb levels. It also features the benefits of simple operation and easy maintenance, since it requires no consumables. Some models use IN USA's patented dual-path UV measurement technique, which has revolutionized ozone measurement by virtually eliminating the need for a reference measurement.

Typical product features include:

Ozone measurement from ppb levels to 150 ppm (or mg/l) or more
Flow rates from less than 1 l/min to greater than 150 l/min
In-line (full-flow) measurement in ultrapure water and semiconductor applications
Side-stream measurement in wastewater and other harsh, dirty applications
Single-point or multipoint (up to five sensors) measurement
Microprocessor-based measurement and control
Analog and digital outputs
Dual alarm relays
Clean-ready for ultrapure applications
No consumables
Low cost of ownership
NEMA-4X, FRPP sensor enclosures
CE compliance

IN USA offers several ozone delivery systems that are carefully designed to meet the most stringent safety performance requirements while delivering high purity ozone with very low cost of ownership. These systems combine one or more ozone generators and servo-loop control with IN USA's advanced ozone monitoring instrumentation to provide a low-cost, turnkey system that can be customized to meet your application requirements.

Also available is an ozone test chamber to test textile samples for colorfastness according to the requirements of AATCC Test Method 109. The ozone test chamber is suitable for a variety of dry and wet process textile applications.

Typical ozone delivery system features include:

One or more ozone generators
Continuous ozone output indication and control
Interface with host tool capability
Built-in safety monitoring subsystem and interlocks
VCR fittings
Cooling water leak detector for safe operation
Extensive diagnostics
EMO
Freestanding rack cabinet enclosure
Low cost of ownership

IN USA's advanced design ozone destruct systems eliminate excess ozone in off-gas produced in a wide variety of applications, including: semiconductor wafer manufacturing; municipal water; ultrapure water; wastewater treatment; corona treatment; and chemical processing.

IN USA's ozone destruct systems use a catalyst to decompose ozone to safe levels via the exothermic conversion of ozone (O3) to oxygen (O2). Our systems can handle inlet ozone concentrations from 1 to 20% by weight, and are designed to meet and exceed OSHA/TLV requirements to ensure workplace safety.

For special applications, IN USA can provide alternative ozone destruct systems, including thermal destruct units.

Typical product features include:

Catalyst-based or thermo-based ozone destruction
Rapid reaction time
Environmentally-safe byproducts
Hydrophobic barriers (catalyst-based)
Room-temperature operation
Optional heating
Simple installation
Designing and building hazardous gases destruct systems
Low cost of ownership

IN USA offers several ozone controller systems, in single- and multichannel configurations, that can interface to both our gas-phase and dissolved ozone sensors. Our SCI-Mux controller is a compact, full-featured ozone measurement and control system that can interconnect with up to four IN USA ozone sensors and has the capability to interface with and control up to four ozone generators.

All models provide a wide range of analog and digital input/output capabilities, including an alphanumeric display, a keypad for setpoint programming, and a bi-directional, digital communications interface that enables remote interfacing with a host. Non-volatile memory stores process parameters, the host communications interface, and other parameters.

Typical product features include:

Single- or multichannel operation for inputs and outputs
Servo-control of ozone generator(s) capability
Interface to IN USA 's gas-phase and dissolved ozone sensors simultaneously
Microprocessor-based measurement and control
Analog and digital outputs
Programmable alarm relays
Software for host communication
EMO interface
Bench top and rack mount
CE compliance

In addition to an extensive line of UV-based ozone analyzers, IN USA offers methyl iodide analyzers. Other instrumentation solutions are available using infrared- based technology.

IN USA's methyl iodide analyzer uses UV absorption to continuously monitor methyl iodide in the gas phase from 0 to 2500 ppmv. Our analyzer provides an accurate and reliable means of monitoring leaks to ensure workplace safety, and provide environmental and purging control. Typical product features include:

Highly stable optical system
Microprocessor-based operation and control
Built-in pump and flowmeter
Dual, field-programmable alarms
No consumables

OS-1X Low Concentration Ozone Switch™ The model OS-1X acts like a thermostat to control ozone generators and alarm based on adjustable ozone concentration set point over the 0-.1 ppm range. Relay contacts handle 5 amps which as adequate to control most small ozone generators.

EZ-10W Low Cost Dissolved Ozone Meter For checking residual dissolved ozone levels in bottled water, swimming pools, spas, water treatment systems, aquariums, food washing and canning, wineries, agriculture, cooling towers, research projects, and much more. Equally useful in the plant, lab, or field. Uses 50-180 ml. samples. The sensor does not contact the water and there are no interferences from chlorine or salinity

OS-3 High Concentration Ozone Switch™ The model OS-3 is ideal to monitor ozone levels in food storage areas, at the supply ducts of ozonated HVAC systems, and to monitor the output of small ozone generators. Its range is 0-10 ppm. It has a voltage output for data logging and the sensor is replaceable as a precalibrated module.

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Environmental Analytical Systems
286 Mask Island Drive
Barry's Bay, Ontario, Canada K0J 1B0

Phone: 613 756 0101
Toll Free (Canada only): 1 800 427 8591
Fax: 613 756 0909
email: info@enviro-analytical.com

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