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PG. 8
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8. (Optional) Run the miniDOT PLOT program to see a plot of measurements.
9. (Optional) Run the miniDOT Concatenate program to gather all the daily files of
measurements into one CAT.txt file.
10.
If no more recording is desired, then move the Logger Control Switch to “Halt”, otherwise
leave it set to “Record” to continue recording measurements.
11. Disconnect the miniDOT Clear Logger from the USB connection.
12. Inspect the o-ring seal for debris.
13. Close the miniDOT Clear Logger by screwing the clear pressure housing back onto the black
end cap.
14. Remove the batteries if storing the miniDOT Clear Logger for extended periods.
1.2 A Few Details
The previous section gives instructions for sampling at 10-minute intervals. However, there are a few
additional details that will enhance use of the miniDOT Clear Logger.
R E C O R D I N G I N T E R V A L
The miniDOT Clear Logger measures and records time, battery voltage, temperature, dissolved
oxygen concentration and measurement quality at equal time intervals. The default time interval is
10 minutes. However, it is also possible to instruct the miniDOT Clear Logger to record at different
intervals. This is accomplished by running the miniDOTControl.jar program supplied with the
miniDOT Clear Logger. Recording intervals must be 1 or more minutes and must be less than or
equal to 60 minutes. Intervals outside this range will be rejected by the miniDOT Control program.
(Contact PME for other recording intervals.)
Please refer to Chapter 2 for instructions on operating the miniDOT Control program.
T IM E
All miniDOT Clear Logger times are UTC (formerly known as Greenwich mean time (GMT)). The
miniDOT Clear Logger internal clock will drift in the <10 ppm range (< about 30 seconds/month) so
you should plan to connect it occasionally to a HOST computer having an Internet connection. The
miniDOT Control program will automatically set time based on an Internet time server. If the logger
has an issue correcting its time, please contact PME.
Please refer to Chapter 2 for instructions on operating the miniDOT Control program.
F I L E I N F O R M A T I O N
