1
255-100 Novalynx Analog
ue
Output
Evaporation Ga
u
ge
1. Introduction
The 255-100 determines evaporation rate by measuring the changing water level
in an evaporation pan. The evaporation ga
u
ge produces a resistance output that
our dataloggers can monitor. The 255-200 or another standard National Weather
Service Class A evaporation pan must be purchased separately.
This manual provides information only for CRBasic dataloggers.
For Edlog datalogger support, see an older manual
.
2. Precautions
•
READ AND UNDERSTAND the
Safety
section at the front of this
manual.
•
When unpacking the 255-100, use caution when removing packing
materials and parts from inside the ga
u
ge and avoid hitting the
potentiometer sprocket wheel.
•
Install a fence or another deterrent to prevent animals from using the
evaporation pan as a watering trough.
•
Keep the evaporation pan free of algae and dirt (Section
).
•
During the winter months when the water may freeze, drain the pan and
store both the pan and evaporation ga
u
(p. 12)
).
3. Initial Inspection
•
Upon receipt of the equipment, inspect the packaging and contents for
damage. File damage claims with the shipping company.
4. Overview
Novalynx Corporation manufacturers the 255-100 Analog
ue
Output
Evaporation Ga
u
ge (FIGURE
) and the 255-200 Class A Evaporation Pan
). The 255-100 consists of a stilling well and potentiometer based
shaft encoder. It is a low-power option for reading the water level of an
evaporation pan such as the 255-200.
NOTE
