The Star-Oddi Data Storage Tag DST CTD measures three paramters, conductivity (salinity), temperature, and pressure (depth). The gathered data is stored into a non-volatile internal memory. All recordings
are time related, utilising a real time clock inside the recorder. The DST CTD is controlled by an ultra low power consumption microprocessor.
The cost effective and small size of the DST CTD has
been made possible by the careful selection of microminiature electronic components and the successful sensor development at Star-Oddi.
Once the DST CTD recorder is retrieved the data is tranferred to your PC via a communications box and easy to use
SeaStar software. All communications and data transfer between the tag and the communications box is by wireless type interface. The DST CTD is inserted into the hole on top of the box, and communication can be established with the software.
The user programs the CTD with date and time for starting the measurements.
The recorder can be reprogrammed and reused as long as the battery lasts. If the battery fails whilst recording, data captured upto that point can still be retrieved.
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Size Diameter x L Weight ((in air/water) Memory Capacity Memory type Conductivity ranges Salinity range Temperature range Depth / Pressure range Resolution temperature (avg.) Resolution depth (avg.) Resolution conductivity (avg.) Resolution salinity (avg.) Accuracy temperature Accuracy depth (pressure) Accuracy conductivity Accuracy salinity Measurement method (cond.) Clock Sampling Interval First recording Computer interface Battery life Data retention Attachment hole |
15 mm x 46 mm (0.6 in x 1.8 in) 19 g /12 g 43582 measurements pr. sensor* Non-volatile EEPROM 3 mS/cm to 37 mS/cm 10 mS/cm to 50 mS/cm User specified -1°C to +38°C (30°F to 100°F) 0.5 m to 700m / 0.5 bar to 70 bar(user specified)** 0.032°C (0.058°F) 0.03% of seleceted range 0.015 mS/cm 0.02 (PSU) ±0.1°C (0.18°F) ±0.4% of selected range ±6 mbar(0.6kpascal) ±0.8 mS/cm ±0.75 (PSU)*** conductivity cells Real time clock. Accuracy ±1 min/month From 1 sec. and up th 90 hrs. At once or any time in the future RS232, 9 pin 5 years**** 25 years 0.9 mm diameter |
| *Depth measurements can be skipped (DST CT), increasing the memory size to 65374 measurements per sensor. **Minimum depth range is 0.5 m to 20 Metres ***Accuracy can improve with selection of more narrow salinity/ conductivity and temperature range. ****For sampling interval of 15 min. or greater. Product specification may change without notice |
Our philosophy of a commitment to customer satisfaction by providing premium quality products was and still is the driving force behind our success.
Providing working solutions to your data monitoring requirements in harsh, hostile environments.
Last updated : 09/09/2008
Content, Design and Programming © 2008 by www.absolute monitoring technologies.com.au Underwater Data Storage Tag CTD