![]() Nominal conditions for precision verification test: 25☌, 86 kPa, 400 μmol/mol CO 2, 12☌ dewpoint, and 20 Hz bandwidth.Ġ to 1,000 μmol/mol (0 to 3,000 μmol/mol available upon request.) 1% (standard deviation of calibration residuals).Assumes the following: the gas analyzer was properly zero and spanned using the appropriate standards CO 2 span concentration was 400 ppm H 2O span dewpoint was at 12☌ (16.7 ppt) zero/span temperature was 25☌ zero/span pressure was 84 kPa subsequent measurements made at or near the span concentration temperature is not more than ☖☌ from the zero/span temperature and ambient temperature is within the gas analyzer operating temperature range.2.8 kg (6.1 lb) for IRGASON ® head and cablesĪ temperature of 20☌ and pressure of 101.325 kPa was used to convert mass density to concentration.SDM, RS-485, USB, analog (CO 2 and H 2O only)ģ years or 17,500 hours of operation (whichever comes first) Innovative signal processing and transducer wicks considerably improve performance of the anemometer during precipitation eventsĥ, 10, 12.5, or 20 Hz (user-programmable).Sonic temperature determined from three acoustic paths corrected for crosswind effects. ![]() Fully compatible with Campbell Scientific dataloggers field setup, configuration, and field zero and span can be accomplished directly from the datalogger.Factory calibrated over wide range of CO 2, H 2O, pressure, and temperature in all combinations encountered in practice.Angled windows shed water and are tolerant to window contamination.Maximum output rate of 60 Hz with 20 Hz bandwidth.Measurements are temperature compensated without active heat control.Low power consumption suitable for solar power applications.Synchronized gas analyzer and sonic anemometer measurements avoid the need to correct for time lag.Truly colocated gas analyzer and sonic anemometer measurements avoid flux loss due to sensor separation.Combined support structure causes less flow distortion than two separate sensors.New conformal coating helps protect sonic transducers in corrosive environments.
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