More about the miniDOT® Logger
- User replaceable batteries
- 300 Meter depth rating
- Shipped calibrated
- Portable and easy to use
The miniDOT Logger measures dissolved oxygen in water and is completely self contained. It 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 35 degrees C with an accuracy of +/- 0.1 degrees C. Oxygen range is 0 to 150% saturation with an accuracy of +/- 10 umole/L.
Logger Information & Sensor Specifications
The miniDOT sensor is an optode that measures lifetime-based luminescence quenching of a thin membrane. The sensing foil contains a coating that has a variable fluorescence that depends upon oxygen concentration in the surrounding water. The sensor is able to compute oxygen concentration in mg/L and record these measurements internally. Every miniDOT logger is calibrated at PME headquarters. Our unique method of calibrating oxygen sensors allow stability over years before re-calibration is necessary. The miniDOT Logger can sample any where between once every minute to once every hour. Contact PME for sample intervals outside this range.
|Sample Interval Minutes||Days of Sampling||Number of Samples|
|10||365 +||52,000 +|
|60||365 +||8,000 +|
Product Case Studies
Software is provided with every miniDOT Logger and can be found on the micro SD card once connected to a computer. The software displays the miniDOT Logger files and creates visual plots to easily read oxygen measurements. The software also allows the user to set the internal clock and determine a sample rate.
BASIC OPERATIONS AND ANTI-FOULING OPTIONS
Learn the basics of operating PME’s miniDOT Logger in this short video along with the anti-fouling options available. If you need support with your miniDOT Logger, reach out to our team.