Thermo Scientific - Air Quality Instruments products

Measure ammonia (NH3) concentrations in ambient air with the Thermo Scientific™ Model 17i Ammonia Analyzer. The Model 17i utilizes chemiluminescence technology for a reaction that produces a characteristic luminescence with intensity proportional to the amount of NO. Highly reliable, this analyzer provides long-term stability. The Model 17i has three modes of operation: NO, NOx, and Nt.

Get 24/7 access to your analyzer's information with a Thermo Scientific™ iQ Series Gas Analyzer. The iQ Series Gas Analyzers are engineered to get smarter over time and help minimize troubleshooting time with a highly precise, yet tough solution. The Thermo Scientific™ 410iQ High Level Carbon Dioxide Gas Analyzer provides the same level of performance when measuring high levels of carbon dioxide (CO2) concentration in emissions using advanced NDIR optical filter technology. Discover the non-stop intelligence of the iQ Series Gas Analyzer now with a two-year warranty.

Get 24/7 access to your analyzer's information with a Thermo Scientific™ iQ Series Gas Analyzer. The iQ Series Gas Analyzers are engineered to get smarter over time and help minimize troubleshooting time with a highly precise, yet tough solution. The 48iQ CO monitoring analyzer provides the same level of performance to detect carbon monoxide poisoning when measuring the amount of carbon monoxide (CO) in ambient air using the gas filter correlation technique. Discover the non-stop intelligence of the iQ Series Gas Analyzer now with a two-year warranty.

The Thermo Scientific™ 111 Zero Air Supply is designed for applications where pollutant-free levels of NO, NOx, O3, SO2, CO and hydrocarbons are required, with flows up to 20L/min. at pressures of 30psi. This model uses an external compressor; the pressure regulators, chemical scrubbers, reactor and temperature controller are all contained in a single convenient case.

The Model 146i mass flow controller  ozone generator, permeation tube oven, power supply and solenoid valves are integrated into a single microprocessor controlled unit. This permits easy to use menu driven software and a consistent set of operation screens for all calibration procedures. Additionally, the microprocessor can make many of the necessary calculations, thereby freeing the operator from having to make the calculations in the field or laboratory. If desired, the Model 146i can be operated remotely by a data logger or perform multi point calibrations.

The Thermo Scientific Model 42i utlizes chemiluminescent technology to measure levels of nitrogen oxides (NO-NO2-NOx) in the emissions from a source. The flagship product in the Thermo Scientific iSeries line, the Model 42i is the most recognized NOx analyzer in the industry. Using chemiluminescence technology, the Model 42i measures the amount of nitrogen oxides in the air from sub-ppb levels up to 100ppm. The Model 42i is a single chamber, single photomultiplier tube design that cycles between the NO and NOx modes. The Model 42i has independent outputs for NO, NO2, and NOx and each can be calibrated separately.

Using chemiluminescence technology, the Model 42i-TL measures the amount of nitrogen oxides in the air from sub-ppb levels up to 1000ppb. The Model 42i-TL is a single chamber, single photomultiplier tube design that cycles between the NO, NOx and Zero modes. The addition of the Zero mode provides for excellent long term stability and extremely low minimum detectable limits. The  42i has independent outputs for NO, NO2 and NOx and each can be calibrated independently.

Using pulsed fluorescence technology, the Model 43i measures the amount of sulfur dioxide in the air up to 10ppm.  The pulsing of the U.V. source lamp serves to increase the optical intensity whereby a greater U.V. energy throughput and lower detectable SO2 concentration are realized.  Reflective bandpass filters, as compared to commonly used transmission filters, are less subject to photochemical degradation and more selective in wavelength isolation.  This results in both increased detection specificity and long term stability.

Using gas filter correlation technology, the Model 48i measures the amount of carbon monoxide in the air.  The Model 48i is based on the principle that carbon monoxide (CO) absorbs infrared radiation at a wavelength of 4.6 microns. Because infrared absorption is a nonlinear measurement technique, it is necessary for the instrument electronics to transform the basic analyzer signal into a linear output. The Model 48i uses an exact calibration curve to accurately linearize the instrument output over any range up to a concentration of 10,000ppm.