Campbell Scientific CS705 Tipping Bucket Snowfall Adapter - Manual (Page 15)

CS705 Snowfall Adapter
3.5”
1.5”
24”
14”
FIGURE 7-3. Pedestal kit options
7.3 Datalogger Programming
Refer to the manual supplied with the TE525WS Texas Electronics Rain Gage.
The manual is also available at
www.campbellsci.com .
8. Maintenance
The CS705 requires regular site visits. The number of required visits mainly
depends on snowfall. Frequent or heavy snows require more site visits.
During site visits, verify the slot in the top of the overflow tube is free from ice
or debris and remove any debris from the catch orifice. If the slot in the
overflow tube becomes plugged, the overflow tube may create a siphon and
draw down the antifreeze level.
The PGE solution gets diluted as precipitation is captured and mixed. Initially,
the CS705 is charged with a pure antifreeze mixture giving it a 1:0 antifreeze to
water ratio. The ratio increases to 1:1 with the equivalent of six inches of
liquid, 1:2 with eight inches, and 1:3 with nine inches. The 1:1 solution
becomes slushy at a temperature of ≈–35°C, the 1:2 solution becomes slushy at
≈–20°C, and the 1:3 solution at ≈–10°C (McGurk, 1992). Ratios greater than
9