The GFC Series gas filter correlation analyzers measure low ranges of gases (CO, CO₂ and N₂O) detecting models available​ by comparing infrared energy absorbed by a sample to that absorbed by a reference according to Beer-Lambert Law. All GFC Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel or via RS-232.
 

• Gas Filter Correlation (GFC) NDIR analysis technique using a white cell folded sample path with specially 
• Excellent leak-free integrity on the gas filter wheel with a 5 year Warranty
• Particulate filter
• Operating temperature of electronics: 5 to 40°C
• Large, luminescent touch-screen display with easy-to-view characters
• Menu-driven functionality and numerous parameters detected with microprocessor-based functionality
• Provided with ears for easy mounting
• Front-panel accessible USB ports for firmware upgrades as standard
• One 4-20mA (isolated) analog output included
• Up to 4 analog outputs, 4-20 mA or settable voltage type (0-100 mV, 0-1V, 0-5V, 0-10V)
• Ethernet and 2 x RS-232 digital outputs (optional USB, RS-485 or multidrop RS-232 available)
• 8 x opto-isolated digital outputs and 6 x opto-isolated digital inputs
• Power: 110 VAC or 220 VAC, 50/60 Hz (user to specify)

GFC-7000T: 0-2 ppm to 2000 ppm CO₂, fixed or auto-ranging
GFC-7001T: 0-1 ppm to 1000 ppm CO, fixed or auto-ranging
GFC-7002T: 0-1 ppm to 1000 ppm N₂O, fixed or auto-ranging