LI-COR LI-6400, Manual

Page: 35 / 846

Assembling the LI-6400
Preparations
Using the LI-6400 2-3
Cables And Hoses
Air inlet and outlet ports and electrical connectors are located on the right side
(end) of the console (Figure 2-2).
Electrical Connectors
Plug the female 25-pin connector into the receptacle labeled IRGA , and the
male 25-pin connector into the receptacle labeled
CHAMBER
. These connec-
tors are gender specific, and can not be interchanged. Tighten (slightly) the
screws on the connectors, but be careful: these screws can break off if tight-
ened too much. See
Replacing Connector Screws on page 19-12.
Air Inlet
There are three air flow ports located to the right of the ON/OFF switch. The
port labeled
INLET is the intake port where the pump draws in the air that
flows through the system.
If your system does not have a CO
2
injector, attach tubing from a buffer vol-
ume to the INLET port. The buffer volume can be as simple as a clean 2-liter
plastic soft drink bottle, although a larger volume will provide more stable in-
let CO
2
concentrations. See Air Supply Considerations on page 4-47.
Figure 2-1. Desiccant and CO
2
scrubber tubes.
Desiccant Tube
CO
2
Scrub Tube
Air Passage Holes
O-Rings