Inventors:
Albert Ketler - Murrysville PA, US
Bradley Baker - Pittsburgh PA, US
Thayananthan Narayanan - Pittsburgh PA, US
Lauren Sargent - Trafford PA, US
Ronald Smathers - Ford City PA, US
Ehren Graber - Monroeville PA, US
International Classification:
G01N033/00, G01N037/00
Abstract:
An automatic system for calibrating gas sensors comprising a source of SPAN gas and a source of ZERO gas, and a means to control the flow of these gases to sensors. The system schedules and makes all required sensor value corrections and adjustments without human intervention. High resolution monitoring enables life extensions for the sensors, as well as higher accuracy monitoring than would be reasonably expected from low cost sensors.