LI-610 Portable Dew Point Generator
A Precision Water Vapor Source
The LI-610 Portable Dew Point Generator is a rugged, portable instrument that provides a stream of gas with a precisely controlled dew point. This high precision makes the LI-610 the ideal instrument for calibrating the H2O channels of gas analyzers and other sensors, or for rigorously controlling water vapor mole fraction in environmentally regulated chambers.
To generate a stable dew point, an air stream is bubbled through water reservoirs in two condensers to saturate the air stream with water vapor. The temperature of each condenser is precisely controlled to the target dew point. An internal radiator with a cooling fan dissipates heat from the coolers, providing a completely self-contained cooling system.
The water vapor stream exits the condensers via a port on the front panel, or can be split to a second port. An internal pump provides a flow rate up to 2.0 liters per minute.
The high accuracy and stability of the LI-610 make it well-suited for calibrating gas analyzers, relative humidity sensors and to check the calibration of dew point hygrometers.
Controlling Humidity During Photosynthesis Measurements
The LI-610 can provide a continuous air stream of known dew point to photosynthesis and stomatal conductance measurement chambers, or for other applications where a known amount of water vapor is required.
Maintaining Humidity in Chambers
A carefully controlled dew point can be used to maintain the desired water vapor mole fraction in regulated chambers, and to calibrate sensors in enclosures.