A lightweight, compact, and inexpensive balloon-borne instrument for measuring atmospheric ozone.
The EN-SCI ECC Ozonesonde is available in several models to accommodate different types of radiosondes or operating environments.
|Model Z||Fits Vaisala RS92 digital and analog radiosondes|
|Model 1Z||Fits older Vaisala radiosondes|
|Model 2Z||Model 2Z-V7 fits InterMet radiosondes (http://intermetsystems.com/index.php/products/imet-1-rsb)
and Graw DFM-97 radiosondes (http://www.graw.de/home/products2/radiosondes0/dfm-97/)
- Operator manual
- One-year warranty
- Email and phone technical support
Accessories (Purchased separately)
- Ozonizer/test unit
- ECC ozonesonde start-up kit
- Data acquisition system (DAS-2)
- Sonde tachometer data packet sensor relay upgrade for quality ECC pump flow RPM data analysis
At 1000 hPa: ±5% accuracy, ±4% precision, 0.3 km resolution
At 200 hPa: ±12% accuracy, ±12% precision, 0.3 km resolution
At 100 hPa: ±5% accuracy, ±3% precision, 0.3 km resolution
At 10 hPa: ±5% accuracy, ±3% precision, 0.4 km resolution
At 4 hPa: ±10% accuracy, ±10% precision, 0.4 km resolution
Resolution figures correspond to approximately a 90% step change in ozone in one minute. Additional specifications appear below.
|Technique||Electrochemical process that generates electrical current in proportion to ozone concentrations|
|Measured Parameters||Ozone partial pressure, sonde housekeeping parameters|
|Operating Pressure||1050-4 hPa|
|Operating Temperature||0 – 40 °C
Inside flight box ambient temperature to -90 °C
|Power Requirements||12 – 18 VDC, 120 mA|
|Weight (including battery)||480 g for instrument, including wet battery
240 g for polystyrene flight box
|Instrument Dimensions||7.6 cm x 7.9 cm x 13.3 cm|
|Flight Box Dimensions||19.1 cm x 19.1 cm x 25.4 cm|
Specifications are subject to change without notice.
How it Works
Unlike some ozonesondes, ECC sondes do not require an external electrical potential. The ECC gets its driving electromotive force from the difference in the concentration of the potassium iodide solutions in the instrument’s cathode and anode chambers. When ozone enters the sensor, iodine is formed in the cathode half cell. The cell then converts the iodine to iodide, a process during which electrons flow in the cell’s external circuit. By measuring the electron flow (i.e., the cell current) and the rate at which ozone enters the cell per unit time, ozone concentrations can be calculated.