PRODUCTS

CR-1A CRYOGENIC HYGROMETER

Fast, Accurate Measurements to -120 °C. Suitable for laboratory use, calibrations and spot checks.

CR-2 AIRCRAFT HYGROMETER

Our flagship product. For use in aircraft and military applications.

CR-3 CRYOGENIC HYGROMETER

CR-2 Convenience for Continuous-Use Applications. Suitable for toxic and corrosive gases, such as Arsine, Phosphine, HCl and HBr.

CR-4 CHILLED MIRROR HYGROMETER

Portable, 3-stage TE cooler for measurements to -60°C

UHQ-4P HYGROMETER

Portable high-temperature hygrometer for measurements to 150 °C.

CR-5 HYGROMETER

Separate sensor and transmitter with 3-stage TE cooler for measurements to -60 °C

1011C AIRCRAFT HYGROMETER

The Best Conventional Aircraft Hygrometer

VAPORTRON®

H-100BL/H-100CL Humidity calibration chamber

VAPORPAK®

Portable humidity calibration chamber

CR-3 CRYOGENIC HYGROMETER

DATA SHEET and USERS MANUAL

CR3_1_new

The new CR-3, like the CR-2, utilizes a closed cycle cryocooler, but differs in that it cannot be used on aircraft. The CR-3 is specifically designed for long-term, continuous-use applications where the instrument will mounted in a fixed location such as a laboratory.

Cryocooler lifetime is greatly extended for the CR-3. Typically, MTBF is over 100,000 hours for the cooler.

Options include a special sample chamber and mirror assembly for toxic and corrosive gases. Like all our instruments, the CR-3 is helium-leak checked. In addition to voltage, current and alarm outputs, the CR-3 has an RS-232 port.

CR-3 Hygrometer Specifications

Measurement Range
Dew / frost point temperature -120 to +30°C
Lowest Concentration ppbv
sea level <1
100 psig (7.8 bar) <.5
Reading Accuracy °C
Entire Range ±0.1°C
Concentration ±2%
Typical Response Time 10-20 seconds
Operating Range
Temperature -40 to +60°C
Pressure, psia (bar) 5 to 115 psia (0.3 to 7.8 bar)
Air / Gas flow range 0.2 to 3 liters/min
Cooling Mechanism Kleemenko Cycle Cryocooler
Power Requirements
Standard 115 vac, 60 Hz, <250 W
Optional 220-240 vac, 50-60Hz
Outputs 0-10V, 4-20mA, Alarm, RS-232

Note: These are approximate specifications. Exact performance will vary depending on installation and operating environment. The right to make technical changes is reserved.