GT300-AQ/VOC provides CIAQ (Composite Index of Air Quality) suitable to use in various applications and detect air quality and various odors such as swage-sludge gas, methane, smoke, smelling breath, particular gas, VOCs, THC and so on. GT300-AQ/VOC make the detecting easily and fun.
GT300-AQ/VOC can detect hydrocarbon compounds in the air, especially high sensitive of hydrogen and transfer the CIAQ (Composite Index of Air Quality) shown on the display. CIAQ define that fresh air and/or zero air is "1". According to concentration of hydrocarbon compounds and hydrogen in the air, the CIAQ is unlimited in theory. Applicant in the living, when concentration of hydrocarbon compounds over some limit in the air, the sense of smell will not have multiple effects, therefore CIAQ is designed in reasonable range in living. Please refer table as below:
In above table except zero air CIAQ is absolutely "1", the other index may be different with user actual detecting, but the higher CIAQ means the more pollutant or hydrocarbon compounds exist. Basically GT300-AQ is more sensitive than GT300-VOC in detecting hydrogen and smoke smell. But it cannot expose in the environment of high concentration VOC for a long time. If detecting targets are VOC and LPG etc, the GT300-VOC is more suitable.
Part of GT300-AQ / VOC functions
LPG and LNG
Air-conditioner management and air cleaner
THC and Particular gases detecting
A fast method and cost-saving of measuring THC and VOCs
It takes time and cost to measure THC (Total Hydrocarbons), VOCs (volatile organic compounds) or some of particular gases when use FID or GC. Even time is very critical but nothing can change except waiting while use them. Now, GT300-VOC changed this situation, it makes fast and cost saving of measuring.
GT300-VOC can detect hydrocarbon compounds and VOCs in the air, and transfer the CIAQ (Composite Index of Air Quality) shown on the display. CIAQ define the fresh air and/or zero air is "1". According to concentration of hydrocarbon compounds and hydrogen in the air, the high CIAQ means high concentration of hydrocarbon compounds. This characteristic can transfer the concentration of gas in ppm or mg/cubic meter.
CIAQ is created by Gastech that is very strange for every one with perplexed. But its convenient and economic features catch users eyes and make some inquiries. For example, what is change rate from CIAQ to hydrogen or THC? Actually, interfered gases and different targets influence the value of CIAQ. Therefore, no absolute change rate can be used. There is same story in wastewater control, use COD instead of BOD5 for some purpose and fast. But the change rate should be found on past data and comparison. Due to different case of wastewater content is different that the change rate of case A is not suitable in case B normally.
It is an actual case study that applies FID and GT300-VOC together and made a table as below.
According the pair of data marks them and makes calibration curve on logarithmic graph paper, which vertical axis is CIAQ and horizontal axis is THC. The curve is nearby a line that means no more data will get high accuracy while makes calibration curve.
It will be convenient to measure THC after users have the calibration curve. For example, GT300-VOC read out 40 CIAQ and lookup 100 mg/cubic meter THC nearly in same environment. In the past, to know the environmental THC in urgent case, overslept the timing always after prepare the FID or sample tools. To use GT300-VOC will be no more regret in the case, user can measure THC and get result in anytime immediately.
Same method, GT300-VOC can be used as hydrogen, particular gases and VOCs detector. The unit of horizontal axis can be mg/cubic meter or ppm. It's a cost-saving and fast method of measuring.
(Specification maybe changed without notice)
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GASTECH is a professional manufacturer in various gas detectors, carbon monoxide detector, carbon dioxide detector, methane detector, oxygen detector, odor detector, VOC detector, hydrogen sulfide detector and various gas analyzer, carbon monoxide analyzer, carbon dioxide analyzer, methane analyzer, oxygen analyzer, odor analyzer, VOC analyzer, hydrogen sulfide analyzer also. The combustible gases detector of model GTF200-FL is suitable to detect Methane, Propane, Butane, Iso-Butane, n-Pentane, n-Hexane, n-Heptane, Iso-Octane, Methanol, Ethanol, Iso-Propanol, Acetone, Toluene, Ethyl Acetate, Hydrogen, Cyclohexane, Acetylene, Ethylene etc. It could be as a Methane Detector, Propane Detector, Butane Detector, Iso-Butane Detector, n-Pentane Detector, n-Hexane Detector, n-Heptane Detector, Iso-Octane Detector, Methanol Detector, Ethanol Detector, Iso-Propanol Detector, Acetone Detector, Toluene Detector, Ethyl Acetate Detector, Hydrogen Detector, Cyclohexane Detector, Acetylene Detector, Ethylene Detector etc. GT200-3G, GT200-2G, GT220, GT300-AQ, GT300-VOC, GTF200-OX, GTF200-CO, GTF200-FL, GTF220, GTF300-AQ, GTF300-VOC and Portadetector are our product and brand name. Welcome tour our website www.gastech.com.tw