Precision Measurement Engineering, Inc.
(760) 727-0300
www.pme.com
13
Use the miniDOT Logger’s miniDOTPlot program to examine the measurements. Saturation
values should be very close to 100%, depending upon the accuracy that you have
determined barometric pressure. If you placed ice in the bucket, then saturation values will
still be 100%. You will see the DO concentration and temperature change greatly as the
bucket warms.
The recorded data, when using yeast should show 0% saturation and 0 mg/l dissolved
oxygen concentration. In practice the miniDOT Logger often reports slightly positive values
of about 0.1 mg/l, but within the accuracy of the miniDOT Logger.
Closing and Opening – Close and open the miniDOT Logger like you would a flashlight;
open by unscrewing the white pressure housing from the black end cap. Close by screwing
the white pressuring housing on to the black end cap. When closing, do not tighten the
white pressure housing. Just screw it on until it makes contact with the black end cap. See
Chapter 3 for more instructions.
Caution: DO NOT remove the stainless steel screws in the black end cap. There are no
user serviceable parts here. If the screws are removed, then you will damage the miniDOT
Logger and it will have to be returned for repair.
Storage When Not in Use – Remove the batteries. Keep the black end covered with the
cap supplied by PME. If the cap is lost, then cover the black end cap with aluminum foil.
There may be a calibration effect of ambient lighting so attempt to keep ambient light from
reaching the sensing foil as much as possible.
Java – miniDOT programs depend on Java and require Java 1.7 or higher. Update Java at
https://java.com/en/download/index.jsp
Chapter 2: Software
2.1 Overview and Software Installation
The miniDOT Logger arrives with these files on the SD card:
miniDOTControl.jar program allows you to see the state of the miniDOT Logger as well
as set the recording interval.
miniDOTPlot.jar program allows you to see the plots of the recorded measurements.
miniDOTConcatenate.jar program gathers all the daily files into one CAT.txt file.
Manual.pdf is the manual.
These files are located on the root directory of the miniDOT Logger.
PME suggests you leave these programs where they are on the miniDOT Logger, but you
may copy them to any folder on your HOST computer’s hard drive.
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