Sequoia LISST-Hydro, User Manual

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In the example shown, the alarm level for the 3 sub-ranges has been
set to 18,400 PPM for each. The alarm level for the total
concentration has been set to 40,000 PPM. If just one of these
thresholds is exceeded the alarm will go off.
As part of the alarm system is a calculation of the time until the
alarm is triggered, or if it is already set, the time to clear the alarm.
This is calculated by fitting at straight line through the last 5
measurements and finding the time until the alarm level is reached.
The time is only a prediction based on the current trend. Real
conditions may, of course, be much different.
Step 5: Confirm
Serial Port
settings In order for the LISST-Infinite or LISST-HYDRO to communicate with
the LISST-Infinite Monitor Software, the serial port settings must be
correct. The software automatically detects the available
communication ports. All you have to do is to select the correct port.