Product Announcement from Buck Research Instruments, LLC


High Performance Cryogenic Hygrometer-Image

The CR-1A, from Buck Research Instruments, 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. Operating time per filling of LN2 ranges from 6 to 8 hours, depending on the dew points being measured.

A ±0.1% accuracy pressure transducer is included for measuring mixing ratio (ppmv or lbs/MMSCF). There is an optional 4.5 Ah battery pack, and an optional autofill system for continuous use applications.

The CR-1A is designed to operate with virtually no attention. Maintenance demands are minimal, consisting of dewar filling and occasional mirror cleaning as necessary.

Benefits of the CR-1A

• Wide Range: down to -120 °C (< 1 ppb)

• Fast Response Time: typically 10-20 seconds

• Inherent Stability and Accuracy

• NIST-traceable

• Very Low Maintenance

 
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