HydroPoint data systems inc. WT008 Benutzerhandbuch
The crop coefficient adjusts the gathered ET to the ET amount
required by the specific plant material.
required by the specific plant material.
Some plants may need much less water than the relative daily ET
to thrive, i.e., native plants, while other plants may require more.
The crop coefficient allows the WeatherTRAK ET plus to
customize each station to a particular type or group of plants to
give you efficient water usage.
to thrive, i.e., native plants, while other plants may require more.
The crop coefficient allows the WeatherTRAK ET plus to
customize each station to a particular type or group of plants to
give you efficient water usage.
The root depth is necessary for proper irrigation because
different watering patterns can affect how deep the applied
water infiltrates the soil. Deep-rooted plants require a different
irrigation pattern than shallow-rooted plants to supply water
deeper into the soil.
different watering patterns can affect how deep the applied
water infiltrates the soil. Deep-rooted plants require a different
irrigation pattern than shallow-rooted plants to supply water
deeper into the soil.
The WeatherTRAK ET plus adjusts the watering pattern to account
for the plant type selected.
for the plant type selected.
10. Set Root Depth
This is the depth of your plant’s roots. The default values are
based on standard values for selected plant and soil types which
you can adjust as required.
based on standard values for selected plant and soil types which
you can adjust as required.
•
Larger root depths allow for longer intervals (days) between
watering.
watering.
•
Smaller root depths create shorter intervals between
watering.
watering.
11. Set Microclimate
This is the amount of direct sunlight your plants receive each
day.
day.
If the area is:
•
Sunny all day, this will increase watering 10% of the ET.
•
Sunny most of day, this will water exactly to ET.
•
Shady most of the day, this will decrease watering by -15%
of ET.
of ET.
•
Shady all of the day, this will decrease watering by -30% of
ET.
ET.
Programming Your WeatherTRAK ET Plus
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6.
Set Precipitation Rate
This is the amount of water applied in inches per hour. After you
select a sprinkler type, you set the precipitation rate.
select a sprinkler type, you set the precipitation rate.
Note: The precipitation rate is vital to determine the proper run
times for each station and to allow the system to operate
properly and efficiently.
times for each station and to allow the system to operate
properly and efficiently.
•
The default precipitation rate is matched to the chosen
sprinkler type. The greater the precipitation rate, the shorter
the run times and/or fewer cycles needed to apply the
needed water.
sprinkler type. The greater the precipitation rate, the shorter
the run times and/or fewer cycles needed to apply the
needed water.
•
The lower the precipitation rate, the longer the run times
and/or more cycles required to apply the needed water.
and/or more cycles required to apply the needed water.
•
Please see “Appendix C: Site Data Gathering” on page 95.
7.
Set Efficiency
This is where you set the overall efficiency of the sprinklers.
•
The default values are based on industry published values.
•
The default efficiency rate is matched to the chosen sprinkler
type.
type.
•
Higher efficiencies mean shorter run times and/or fewer
cycles required to apply the needed water.
cycles required to apply the needed water.
•
Lower efficiencies mean longer run times and/or more
cycles required to apply the water needed.
cycles required to apply the water needed.
•
Please see “Appendix C: Site Data Gathering” on page 95.
8.
Set Soil Type
You enter the kind of soil that you have in that station/zone.
9.
Set Plant Type
This is the type of plant material you are irrigating.
There are two types of parameters for each plant type:
•
crop coefficient, and
•
root depth.
By selecting a plant type, you select values for both.
Programming Your WeatherTRAK ET Plus
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