The oxygen sensor is an optode that measures dissolved oxygen concentration in water through a fluorescence method. Data are recorded to an internal SD card. Operation of the miniDOT logger such as setting the time and sample interval can be accomplished via the USB cable.
The miniDOT logger is completely self contained and includes an optical DO sensor, a temperature sensor, batteries and a micro SD memory card. The logger collects measurements of dissolved oxygen with an accuracy of +/- 5% and temperature to +/- 0.1 degrees C. All measurements are stored internally. Data can be offloaded to a computer via the miniDOT USB cable. Temperature range is 0 to 30 degrees C with an accuracy of +/- 0.1 degrees C. Oxygen range is 0 to 150% saturation with an accuracy of +/- 10 umole/L.
- Stable calibration
- Records time, date and battery voltage
- Anti-fouling available
- User replaceable batteries
- 100 Meter depth rating
- Shipped calibrated
- Portable and easy to use
Sample EnduranceSample Interval (minutes)Days of SamplingNumber of Samples1365500,00010365+52,000+60365+8,000+
Sensor SpecificationsTemperature Accuracy+/- 0.10 (°C)Temperature Range0 – 30 (°C)Temperature Resolution0.01 (°C)DO Accuracy+/- 10 μmole/l or +/- 5%DO Range0 – 150% saturationDO Resolution0.05 μmole/l or betterMaximum Depth100 meters