The miniDOT® Clear Logger is a fully submersible logger that records dissolved oxygen and temperature measurements in fresh and saltwater environments. The logger features an internal LCD screen, which displays real-time measurements. The oxygen sensor is an optode that measures dissolved oxygen concentration in water through a fluorescence method. Data is recorded to an internal SD card.
Parameters
Product Features
Plug & Play Software
Software is provided with every miniDOT® Clear Logger and can be found on the micro SD card once connected to a computer. The software displays the miniDOT® Clear 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.
Sensor Specifications & Calibration
The oxygen sensor is able to compute oxygen concentration in mg/L and record these measurements internally. Every miniDOT® Clear Logger is calibrated at PME headquarters. Our unique method of calibrating oxygen sensors allow stability over years before recalibration is necessary. The miniDOT® Clear Logger can sample in intervals between once every minute and once every hour.
Field Replaceable Batteries
The miniDOT® Clear Logger, uses two AA lithium batteries, and are user replaceable. The miniDOT® Clear Logger also contains a backup coin-cell battery.
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 can compute oxygen concentration in mg/L and record these measurements internally. Every miniDOT® Clear logger is calibrated at PME headquarters. Our unique method of calibrating oxygen sensors allows stability over years before recalibration is necessary. The miniDOT® Clear logger can sample 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 |
|---|---|---|
| 1 | 365 | 500K |
| 10 | 365+ | 52,000+ |
| 60 | 365+ | 8,000+ |
