LI-COR LI-7815, Instruction Manual

Page: 17 / 98

Section 2.
Getting started
This section provides basic operating instructions for the instrument.
Powering on the instrument
To power on the instrument, either install a battery and push the power button or
connect the instrument to an external power supply. The instrument will power on
any time power is supplied through the AC power adapter or the auxiliary power
cable.See
Power options on the next page for more details.
If main power is lost, the instrument will run until the batteries are depleted and
then it will power off. When the main power is restored, the instrument will power
up and the batteries will resume charging (only if powered through the universal
power adapter). When powered by batteries only, you must press the power button
to turn on the instrument.
Upon powering on, the instrument will issue a series of status codes as it completes
the start up cycle. The pump will start running when the optical bench approaches
55 °C. If starting from room temperature, it will take about 20 minutes before you
can connect and another 10 or 15 minutes before it provides accurate measurements.
If the instrument is very cold, it will take longer to warm up.
Instruments shipped prior to January 2021 do not support the automatic power on
feature and must be powered on by pressing the power button. Contact LI-COR if
you would like to upgrade one of these instruments. The instrument cannot be
powered on from afar. You can restart the instrument through the software inter-
face, but if you power it off through the software interface or the power button, you
must press the button or reconnect the main power supply to turn it back on. See
Powering off the instrument on page 2-10 for additional details.
2-1 LI-7815 CO₂/H₂O Gas Analyzer