This document refers to the C-21 and earlier EcoSensors VOC Instruments
Replacement sensors for the C-21 are available from Gas Sensing for $50. Please contact us for ordering information.
The Eco Sensors C-21 responds to most reducing VOCs, but not with the same degree of response for each VOC. The response is essentially logarithmic. For the first half of the scale (to about the 2nd yellow bar), the response is approximately linear. After that, it gets sharply logarithmic (much more c...
EcoSensors devices have a variety of different sensors and calibration options and prodedures. These will vary by product and sensor used in that product. See the list below for your specific sensor and relevant calibration information. First, follow our short list of FAQ's to familirize yourself with general calibration inforamtion.
EcoSensors FAQ and General Information
Will I get a Calibration Certificate?
Yes, all EcoSensors products are shipped with a recent calibratio...
The Portasens is known as a great ambient air portable gas leak detector that features: - electrochemical smart-cell sensor (which can be calibrated independently of the unit) - available to measure over 30 types of gases - a rugged internal sample pump - excellent accuracy and repeatability - easy to read back-lit LED display - flexible wand for pinpointing leak points - datalogging capabilities - integrated audible alarms
Because of the many attractive features a...
Non-Methane Hydrocarbons:
What are NMHCs:
Non-Methane Volatile Organic Compounds (NMVOCs) are a large variety of chemically different compounds such as benzene, ethanol, formaldehyde, cyclohexane, and acetone. NMVOCs are essentially identical to VOCs , with the exlusion of methane. An important subset of NMVOCs are NMHCs. NMHCs are trace atmospheric components that provide a sink for hydroxyl radicals and control ozone concentration. Exmples of NMHCs are ethane, ethene, propane, pro...
