Campbell CS705, Instruction Manual

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CS705 Snowfall Adapter
14
The TE525WS rain gage is designed to discharge precipitation out its base and
onto the ground. This means the toxicity of any antifreeze solution used in this
application needs to be considered. The PGE antifreeze consists of propylene
glycol and denatured ethanol. Propylene glycol is a non-toxic biodegradable
solution. Denatured ethanol, however, contains toxic additives to discourage
ingestion. These additives are toxic to mammals. Fortunately, because ethanol
evaporates rapidly when exposed to air, the denatured reagent should pose a
limited risk. However, in consultation with the appropriate agency or land
owner, an assessment of risk to animals should be conducted for each site and
appropriate mitigation measures taken.
When recharging, the solution should be disposed of in accordance with local,
state, and federal regulations.
The CS705 is recommended only for use during winter. It should be removed,
cleaned, and carefully stored after the last snowfall, then reinstalled prior to the
first snowfall of the coming winter.
8. References
McCaughey, W. and Farnes, P.: 1996, “Measuring Winter Precipitation with an
Antifreeze-Based Tipping Bucket System”, Proceedings 64
th
Western
Snow Conference,
130-136.
McGurk, B.J.: 1992, “Propylene Glycol and Ethanol as a Replacement
Antifreeze for Precipitation Gauges: Dilution, Disposal, and Safety”,
Proceedings 60
th
Western Snow Conference , 56-65.