capable of producing lightning discharges. Consequently, electric field monitors can give
warning at the beginning of storms prior to hazardous discharges. Both lightning detectors and
electric field monitors are employed in high-risk applications.
Lightning safety guidelines based on human observations exist and should not be ignored simply
because of the presence of sensitive electronic instrumentation. The NOAA 30/30 rule suggests
seeking shelter if thunder is heard within 30 seconds of a lightning flash (approximately 6 miles),
and remaining in a sheltered area for 30 minutes after the last lightning or thunder before
resuming outdoor activities [NOAA].
It should be noted that no method of lightning warning completely eliminates the risks
associated with lightning. As mentioned, lightning detectors give no warning until a detectable
discharge has occurred. Atmospheric electric field yields warning prior to the “first strike” for
storms developing overhead, along with some indication of the end of a thunderstorm. Yet there
are occurrences of cloud-to-ground lightning discharges striking the ground several miles away
from the electrified cloud where the discharge initiated [NOAA]. Electric field monitors may give
no practical warning in these instances because the electric field in the vicinity of the strike point
may not indicate hazardous levels until milliseconds before the strike. Consequently, while
lightning warning systems can greatly reduce the probability of death or injury from lightning
discharges, they cannot reduce this probability to zero.
3. Initial inspection
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Upon receipt of the sensor, inspect the packaging and contents for damage. File damage
claims with the shipping company.
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Immediately check package contents against the shipping documentation. Contact
Campbell Scientific about any discrepancies.
3.1 Accessories
CAUTION:
You must order an embedded CR1000M data logger with the CS110.
The following are shipped with the CS110:
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(1) Calibration Certificate
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(1) Flat-Bladed Screwdriver, 2.5 mm Blade x 50 mm Shaft
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(1) #1 Phillips Screwdriver
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(1) Screw #3-48 Hex Driver Set
CS110 Electric Field Meter 2
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