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ET107 Weather Station
1. Introduction
The ET107 is an automated weather station designed for irrigation scheduling
in turf grass and commercial agriculture applications. A properly programmed
station calculates potential evapotranspiration (ETo), which is the amount of
water lost from the soil due to evaporation and plant transpiration. Calculating
the evapotranspiration rate can aid in the development of an irrigation schedule
that provides sufficient water without overwatering.
2. Precautions
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section at the front of this
manual.
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WARNING:
If any part of the weather station comes in contact with
power lines, you could be killed. Contact local utilities for the location of
buried utility lines before digging or driving ground rods.
•
Avoid dangerous electrical accidents when using the ac power option by
locating the transformer remotely and burying a low voltage line to the
station. The low voltage will carry up to 500 feet on an 18 AWG power
cable.
•
Carefully handle the ET107 components during transport, installation, and
cleaning.
•
Leave the 034B wind vane in the protective cardboard sleeve until it’s
ready to be installed.
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Ensure to remove the yellow cap from the RH and temperature sensor, the
red or green cap from the pyranometer, and the rubber band from the
tipping bucket mechanism. Save the caps for shipping or storing the
sensors.
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Campbell Scientific recommends routing the cable of the optional soil
sensors in conduit, especially if the soil is rocky or rodents are present.
The cables for these sensors do NOT have an armored outer jacket. The
jacket is waterproof but NOT cut proof.
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When connecting cables to the enclosure panel, ensure that each plug is
completely seated on the connector and the locking ring is turned a quarter
revolution clockwise. Failure to seat the plug completely could cause
corrosion and water damage to both the enclosure and the cable.
•
WARNING:
Misuse of the lithium battery in the CR1000M or installing
this lithium battery improperly can cause severe injury. It is a fire,
explosion, and severe burn hazard! Do not recharge, disassemble, heat
above 100 °C (212 °F), solder directly to the cell, incinerate, nor expose
contents to water. Lithium batteries need to be disposed of properly. Refer
(p. 62)
, for more information.