LI-COR LI-7815, Instruction Manual

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Section 3. Applications of the LI-7815
Retrieving data from the instrument
The LI-7815 records all of its data after it has warmed up. There is no way to turn
data logging on or off because data are always logged. The instrument supports two
protocols for transferring data: Direct download and MQTT (Message Queuing Tele-
metry Transport). Here we describe direct download. MQTTis described in
Com-
munication with the MQTT protocol on page 7-1).
Downloading a data file
To retrieve data from the instrument, click
Options > Export
. Specify a
date range and time period. Dates are displayed as YYYY-MM-DD. Time
options are given in a 24-hour clock (00:00 through 24:00). Click
Export
.
The web browser will prompt you to save or open the file, and then
provide a text file with the requested data. The file has a
.data
exten-
sion. Measurements are recorded as tab-delimited text that can be
opened in a text editor or spreadsheet application.
3-4 LI-7815 CO₂/H₂O Gas Analyzer