NOTE:
The user is responsible for determining if a CS110 site is representative of the CS110 2-Meter
CM110 Tripod site, and if not, for determining the appropriate site correction.
The atmospheric electric field at the Earth's surface during fair-weather conditions is on the order
of -100 V/m; the negative sign indicating that the electrostatic force on a positive charge is
directed downward toward the Earth's surface [McGorman and Rust], [Rakov and Uman]. Generic
site corrections are sometimes computed in fair-weather conditions by assuming a -100 V/m
fair-weather field. The accuracy of a fair-weather site correction is questionable because local
conditions may result in a fair-weather field significantly different (>100%) from -100 V/m. Also,
the unknown electric field offset may be significant when calibrating at -100 V/m. This offset can
be measured by covering the stator with a clean Zero Electric Field Cover.
NOTE:
Fair-weather field site correction is not recommended for lightning warning applications
because of the relatively poor accuracy in determining C
site
.
8. CS110 maintenance
The CS110 has been designed to provide reliable electric field measurements and to simplify and
minimize maintenance. To identify measurement problems and reduce or eliminate scheduled
CS110 Electric Field Meter 25
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