LI-COR LI-7500, Инструкция по эксплуатации

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Section 3
Setup and Operation 3-5
The sensor head mounting post can also be attached to a U-rail type holder and fastened with
a 3/8-16 screw (or a 1/4-20 screw, when using the adapter bushing), as shown above.
A vertical mounting orientation provides 360° acceptance for wind direction (neglecting the
sonic anemometer location, of course), and this is the recommended orientation. Note,
however, that the LI-7500 will function just fine in any orientation (horizontal, upside down,
etc.). A horizontal orientation limits the acceptable wind direction, but reduces problems of
rain and dew droplets sitting on the windows. However it is oriented, the sensor head should
be placed as close to (and downwind of) the sonic anemometer as possible, and at equal
heights, as shown in Figure 3-2.
Serial Cable Connection
There are three serial cables provided for various connection schemes (Figure 3-3). A
description of these cables and how to use them is given below.
6-Pin Eurofast® Serial Cable (PN 392-05620)
This 4m cable has a 6-pin circular connector that plugs into the 'Serial Interface' port on the
LI-7500 control unit front panel. The other end has bare wire leads that can be soldered to a
standard DB-9 female connector (not included) for direct connection to a computer. This
cable is unterminated so that it can be inserted through a hole in a weatherproof box, for
example, that contains the logging device. The wire leads should be soldered to a 9-pin
connector as described below (see Figure 3-3).