Portable and Fixed Gas Detector Range Enhanced
Aug 19 2010
PPM Technology (UK) is pleased to announce a number of significant enhancements to their range of portable and fixed gas detection instruments.
Their new Wireless IAQ Profile PPMonitor is able to continuously monitor any Indoor Air Environment. The wireless technology enables real-time monitoring of almost any IAQ parameter including Temperature, Humidity and a wide range of toxic gases and compounds.
PPM Technology’s handheld Formaldehyde detectors the Formaldemeter™ htV and htV-m now offer improved performance and reliability; the instruments are able to accurately measure when extremely high concentrations of formaldehyde are present; this advance is due to innovation in technology; a new valve to regulate the supply of air into the instruments fuel cell.
The sampling mechanisms within our hand-held instruments previously were not suitable for continuous measurements of high concentrations of formaldehyde. We developed the new modified version of the instrument to enable the user to change the settings and monitor for much higher concentrations of Formaldehyde up to approximately 90ppm. This has been achieved through the introduction of a miniature solenoid valve, which ensures a closed system; this prevents formaldehyde from seeping into the sensor when sampling is not taking place. The valve has been designed inertly to measure Formaldehyde.
When the sample button is pressed the valve will open and will remain open for the same duration as the sampling period of the pump. The sample is collected through a length of tube. Previously only a finite amount could be sampled but now it is possible to have the pump run until the tube is filled with the same concentration as the area to be monitored and then take the sample directly from the tube.
The Formaldemeter htv and htv-m can also be wirelessly connected to third party systems via the PPM Technology interface board (ifB). The interface board can be configured to give different voltage outputs; a 4–20mA current output and also gives a relay alarm output.
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