The Humilab Humidity Control Chamber is a NIST traceable relative humidity calibration system that is monitored and precision controlled by a primary chilled mirror hygrometer and RTD temperature sensor.

stability and facilitates cost-effective calibrations of relative humidity sensors, probes, transmitters, recorders and data loggers.

 

- click here - to download the Humilab datasheet

The MG101 hygrometer calibration system is used to generate precise, repeatable levels of water vapor in a carrier gas stream. This primary dew/frost point generation system achieves an accuracy of ±1.8°F (±1°C) within a continuously adjustable range.

The MG101 employs the elementary principle of gas dilution. Dry gas is piped into the system, where it is divided into two streams. One stream is saturated with water vapor at a known temperature, while the other stream remains dry (see flow schematic on next page). The two streams are then mixed. The saturated stream is diluted with varying amounts of the dry gas to produce the desired gas/water vapor mixture.

The MG101 employs either single stage or two stage dilution to generate gas with a dew/frost point range of -103°F (–75°C) to 18°F (10°C) at 20°C ambient temperature.

The MG101 may be used to verify a wide variety of instruments, including our aluminum oxide moisture probes. When used with a chilled mirror reference, the system provides an economical calibration system.

- click here - to download the MG101 datasheet