LI-COR LI-870, Using Manual

Page: 24 / 42

Section 4. Maintenance
Four O-rings are included in the Optical Bench Cleaning Kit (part number 9980-
066), and additional O-rings can be purchased from LI-COR. Replace them if they
are smashed flat or damaged in any way.
10 Let the optical components dry and reassemble the optical bench.
Attach the source and detector. The orientation of the optical path cylinder is unim-
portant — either end can be inserted into the source and detector housing. Tighten
each of the screws snugly.
11 Place the optical bench back into the foam, re-insert the cable connectors to the source and
detector, and screw the cover plate back to complete the re-assembly.
12
Perform a zero and span calibration (see User calibration on the facing page for instructions).
Connecting to LI-870 for calibration
Though the primary interface for the LI-870 is through the Smart Chamber or LI-
8250 software, you may also connect your LI-870 to the LI-COR LI-830/850 soft-
ware to view data and for user calibration.
After downloading and installing the software from the LI-COR support site
(licor.com/env/support), launch the software. It should display
No Analyzer Con-
nected.
Note: You must connect the power cable from a powered-on Smart Chamber or
LI-8250 to power to analyzer when using the software.
Connect your analyzer to your computer using the USB-B to USB-A cable included
with your purchase. You may see a notification that says
Setting up device
, or some-
thing similar. After the automatic device setup is complete, go back to the software,
and click
Connect
. In the box that opens, expand the
Connect to
drop-down menu,
and you will see your device.
Important: The LI-830/850 software will recognize your LI-870 as an LI-850.
This is normal. Go ahead and click
Update
, and you will connect to your LI-870.
4-4 Using the LI-870 CO₂/H₂O Analyzer