B-26
Given the new span slope
S
w1
, it updates the span offset
S
w0
by equation B-23.
Spanning CO
2
When the command for setting the CO
2
span is received, along with the target con-
centration
C
T
, the instrument computes
S
c0
from equation B-28, where
and
are averaged for 5 seconds.
B-27
B-28
where
B-29
Note that
B-30
We need
α
cT
to compute
, but
α
cT
depends on
. We resolve this by
using an approximation (equation B-31) instead when computing equation B-30
B-31
The instrument retains the following values, which are used for subsequent sec-
ondary spans, if necessary:
B-32
B-33
Appendix B. Equations summary
B-7
Appendix B. Equations summary
Summary of Contents for LI-870
Page 1: ...Using the LI 870 CO2 H2O Analyzer...
Page 2: ......
Page 12: ...Section 1 Overview of the LI 870 1 4 Using the LI 870 CO H O Analyzer...
Page 18: ...Section 2 Using the LI 870 2 6 Using the LI 870 CO H O Analyzer...
Page 30: ...Appendix A Specifications A 2 Using the LI 870 CO H O Analyzer...
Page 41: ......
