255-100 Novalynx Analog
ue
Output Evaporation Ga
u
ge
2
FIGURE 4-1. 255-100 Novalynx Analog
ue
Output Evaporation Ga
u
ge
FIGURE 4-2. 255-200 Novalynx Class A Evaporation Pan
The 255-100 uses a chain-mounted float and counter weight that turns a
sprocket attached to a precision 1000
Ω
potentiometer. When provided with a
precision excitation from the datalogger, the 255-100 Evaporation Ga
u
ge
produces a dc voltage that changes proportionally to the change in water depth
of the evaporation pan. The datalogger measures the voltage to determine water
level and, consequently, evaporation and rainfall.
Novalynx Corporation manufacturers the 255-100P/F Steel Pipe and Fittings
) for connecting the evaporation ga
u
ge to the evaporation pan.
The 255-100P/F allows the ga
u
ge to be installed outside of, but hydraulically
connected to the pan. This configuration will prevent the ga
u
ge from interfering
with the wind flow over the pan or from altering the solar loading on the pan.
A
pipe connects the pan to the ga
u
ge keeping both at the same head.
FIGURE 4-3. 255-100P/F Novalynx Stainless Steel Pipe and
Fittings for Evaporation Pan
