6. Retrieve the data recorded by the CS110s during a high field event and import it into Excel
or a similar software package. One second e
field
data is better for regression than the one
minute e
field
values because one second data show spikes due to lightning which can be
used to make sure the data are synced to within 1 second. However, one second data fills
the memory within 19 hours; whereas the one minute data fills the memory in three days. In
some cases, it may be necessary to use one minute data captured from a storm during a
weekend.
7. Process the data in a manner similar as Figure J-1 (p. 69). In that example, the regression
yields a C
site
multiplier of 0.16. The C
site
used by the DUC to measure the data is multiplied
by the regression value. In this case, the DUC data was measured using a C
site
of 1.0, which
when multiplied by the regression value of 0.16 yields the new C
site
value of 0.16.
J.2 Transfer standard installation
The transfer standard configuration consists of the CS110 mounted flush with the top of the
CM310 142 cm (56 in) mounting pole with the 58.4 cm (23-in) legs and power supply housed in a
30.5 cm by 35.6 cm (12-in by 14-in) enclosure. Each leg attaches to the pedestal base with two
bolts. The pedestal base has a set of three holes for each leg. The angle of the legs, and resultant
pedestal height, is determined by which hole the end bolt is placed through.
1. Attach the legs to the pedestal base and tighten the bolts (do not overtighten). For the end
bolts, use the hole that places the legs in the most horizontal position. This puts the face of
the CS110 at a height of 119 cm (46.75 in) and the top of the mast at 147 cm (58 in).
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