Buck Research Instruments, LLC - Product Announcements

Cryogenic Hygrometer - CR-1A - from Buck Research Instruments L.L.C.

The CR-1A is a high performance, cryogenically cooled hygrometer. CR-1 instruments have been routinely used aboard NASA aircraft and elsewhere for years. The CR-1A is a miniaturized version of the original CR-1, and uses a much smaller LN2 dewar. (read more)

· 3 Stage TE Cooler

· Dew/Frost Range: -60 to 100 °C *

· 90 °C Depression

· Resolution: 0.01 °C

· Accuracy: ±0.1 °C

· 0 to 10v, 4-20 mA and RS-232 Outputs

· Dimensions: 8x9x10 inches

· Power Requirement: 24vdc @ 2.5 amps or 110 - 240 vac @ 50-400Hz (read more)

· Dew point measurement range: +20 to +150 °C *

· Depression: 50°C below sample chamber temperature

· Resolution: 0.01 °C

· Accuracy: ±0.2 °C

· 0 to 10V, 4 to 20 mA and RS-232 Outputs.

· Dimensions: 8x9x10 inches. (read more)

Range of Humidity Units Generated:

· RH: 3 to 95%RH with 1.5%RH accuracy from 20-90%

· Dew Point: -20°C to +40°C Dew Point with accuracy ± 0.2°C

· Absolute Hum: 0.7 to 35 grams/cubic meter (read more)

The VAPORPAK^® Model H-31 humidity calibrator is intended for rapid determination of a field sensor temperature/humidity accuracy. It can also be used for sensor linearity test as well as probe drift studies. (read more)

The 1011C Aircraft Hygrometer is a complete chilled mirror optical dew point system for monitoring atmospheric dew and frost points. It provides three stages of thermoelectric cooling, and can reach frost points as low as -60 to -90 °C, depending on mounting configuration and operating conditions. (read more)