Section 1
1-2 Unpacking & Inspection
There are several optional accessories available for use with the LI-6262,
including:
6262-03 Pressure Transducer - measures pressure in the sample
optical cell and its millivolt signal is used by the LI-6262 analyzer
software to calculate pressure values. CO
2
and H
2
O readings are then
automatically corrected by the software for any detected pressure
changes.
6262-04 Reference Pump - designed to purge the reference cell of H
2
O
during absolute mode operation. Air flow created by movement of the
chopping shutter disc is sufficient to purge the reference cell of CO
2
, but
it is not sufficient to remove all the water vapor in the reference cell.
For this reason, an auxiliary pump such as the 6262-04 or the LI-670
Flow Control Unit must be used when operating in absolute mode.
6000B Rechargeable Battery (provides 3.2 hours of battery life).
6200B Rechargeable Battery (provides 6.4 hours of battery life).
LI-6020 Battery Charger (92-138/184-276 VAC, 47 to 63 Hz).
1800-04 RS-232C Cable - Used to connect the LI-6262 (DCE) to a
standard IBM AT-type 9-pin RS-232C communications port).
In addition, LI-COR manufactures a portable dew point generator (LI-610),
and a flow control unit (LI-670), which are valuable accessories for
calibrating and operating the LI-6262.
LI-610 Portable Dew Point Generator
The LI-610 is an ideal field-portable system for calibrating the LI-6262, and
can also be used to provide a known water vapor source for use in environ-
mentally controlled measurement chambers.
The LI-610 is a precision instrument that provides a controlled water vapor
source of known dew point. The LI-610 has the ability to generate stable
dew points from 0 to 50 °C with high accuracy (± 0.2 °C). The water vapor
source can be derived from any input air stream, including ambient air,
eliminating the need for external tanks or mixing of gases.
The dew point temperature of the air stream can be viewed on the LI-610’s
4 1/2 digit LCD display, or output to the LI-6262 directly, as an analog
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