491Flex Calibration Gas Standards Generator

The 491Flex™ retains the modular construction and expandability of the 491M, but replaces the analog controls with the same controls developed for our computer controlled FlexStream™ system. Accuracy and precision are thus maintained throughout the main product line (FlexStream™, new 491Flex™, and EcoFlex™). Product differences include automation, parameter readability and expandability.

The new 491MFlex™ uses electronic mass flow control and full PID temperature control.
Applications:
• Trace Concentration Mixtures, ppm, ppb, and pptr
• Complex Trace Gas Mixtures
• Odor Simulation
• QA Gas Mixtures
• Mixed Flowing Gas Studies