ATI Q45S Wet H2S Gas Detector
- Optional Air-Purge system removes water droplets on the sensor, reducing sensor maintenance
- Contact outputs include two programmable control relays for control and alarm modes
- Easy integration with NexSens data logging & telemetry products
|Q45S||Wet hydrogen sulfide (H2S) gas detector|| |
|Drop ships from manufacturer|
Designated Model Q45S, the odor monitoring system uses our standard Q45 electronics package in conjunction with a special "Wet H2S" sensor. Measurements may be made either at the inlet to scrubber systems where concentrations can run as high as 200 PPM, or at the outlet where concentrations are ideally down below 0.5 PPM. Special sensor configurations are available for either duct insertion or flowcell use.
Because Q45S systems are often monitoring gas streams with condensing levels of water vapor, provision has been made for eliminating water droplets from the sensor that could present a barrier to the diffusion of H2S into the sensor. An optional air-purge system controlled by the transmitter will periodically deliver a blast of air across the crititcal sensor surfaces to remove water droplets. This system insures a clear gas diffusion path to the sensor and reliable measurements on a continuous basis.
Q45S transmitters provide a large, easy to read LCD display of H2S concentration with a second display line to indicate other status information. An alarm contact is available for external alarming functions, and a second contact may be used for alarm purposes if the air purge system is not implemented in a given application. An isolated 4-20 mA output is provided for remote data transmission, and output spans are user programmable for ranges of 0-2.000 PPM up to 0-200.0 PPM.
A special battery-powered version of the Q45S is available for use in temporary installations. This system runs on an internal 9 volt battery and contains a data-logger for collecting information on existing air collection systems. A standard 9 volt battery will operate the unit for 4 days, while a 9 volt lithium battery will provide about 10 days of operation. Data is easily downloaded to a standard PC using software supplied with the unit.
In The News
While much of the world has experienced a warmer climate in recent years, the U.S. Southeast has cooled. Scientists want to know why because the answer could reveal keys to improving air quality and understanding climate change.
To study the cooling Southeast, scientists at several institutions have joined forces to conduct the Southern Atmosphere Study (SAS), the largest study on southeastern U.S. air quality since the 1990s. These include the U.S. Environmental Protection Agency, National Center for Atmospheric Research, National Science Foundation, National Oceanic and Atmospheric Administration and the Electric Power Research Institute.
Five air quality studies fall under the SAS umbrella.Read More
Researchers at Washington State University will quantify uncombusted methane emissions throughout the U.S., according to a release . The investigators will look at emissions from local gas systems and try to estimate a national emissions rate.
Uncombusted natural gas is more harmful to the atmosphere than carbon dioxide because it has a higher warming potential. Emissions of uncombusted methane along the natural gas supply line haven’t been measured on a national scale and studying them will become more important as the U.S. natural gas industry continues to expand.
The Washington State study begins in April and is funded by major natural gas utilities, the Environmental Defense Fund and Conestoga-Rovers and Associates, an environmental engineering and consulting firm.Read More
A new air monitoring vehicle was recently delivered to the city of Vancouver with praise and skepticism from metropolitan residents, according to The Province.
The vehicle, known as the Mobile Air Monitoring Unit, is loaded with sensors which will monitor air quality. The city wants to monitor particulates in the air from coal, diesel and oil tankers.
Data collected by the truck transmits to the city hall.
Some citizens are happy to have a new mobile air monitoring station that will supplement the city’s 26 stationary monitoring stations. However, many citizens criticized the loaded Ford F-450’s price tag of more than $280,000.Read More