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2. BASIC FUNCTIONAL DESCRIPTION
Electronic unit for the control of irrigation, fertiliza-
tion, pH, pumping and filter cleaning, plus malfunction
detection and with the possibility of telemanaging the
data via PC or mobile phone.
Models with 16, 24, 32, 48, 64, 80 and 96 config-
urable outputs, plus 12 signal inputs at the base. Ex-
tension of configurable outputs and inputs for the
reading of analogical and digital sensors; both by
direct connection to the unit or by means of field
modules via cable 24 Vac or Monocable, or through
the Agrónic Radio system. Possibility of programming
by time and volume, both in irrigation and fertilization
as in filter cleaning, with possibility of mixed
perform-
ance (independent for each sub-program).
By means of climatic or crop sensors, it can influ-
ence the start conditions or the irrigation and fertilizer
units.
IRRIGATION
It can control up to 99 irrigation sectors, gov-
erned by 40 sequential programs, with 12 sub-
programs in every sequence (total 480), and possibil-
ity of linking programs in order to carry out sequences
of 24, 36, or more sub-programs.
Every sub-program can activate from 1 to 10 irri-
gation sectors simultaneously.
Every program can start its performance at a
concrete time, when another program finishes, when a
sensor reaches a certain value (°C, soil moisture, etc.),
due to an input when a contact is closed, by mobile
telephone via SMS message. It can also start its per-
formance according to the days of the week, the irriga-
tion frequency (irrigate every day, every 2 days, every
3 days, etc.) or irrigate every day with several per-
formances. The period of the year when the program
has to work can also be indicated. In a start by sen-
sors, an active period and a margin of time between
starts can be chosen.
Modification of irrigation and fertilization units by
a manual factor or by sensors which will have an influ-
ence depending on their values from the previous
irrigation, such as rain, evapotranspiration, integration
of the solar radiation, etc.
When an irrigation is taking place, a program can
be cancelled temporarily by sensor values such as
wind, temperature, level, etc.
Grouping of programs up to 9 groups so that only
one program of every group can irrigate at the same
time.
Complete control of instantaneous flow of four
possible irrigation counters, with programming of the
expected flow in each sector and tolerance percent-
age both for excess or lack.
FERTILIZATION
Capacity to configure from 0 to 8 fertilizers, in in-
dependent tanks.
Independent pre- and post-irrigation values for
every program.
The time or volume of application of every fertil-
izer can be programmed independently for every sub-
program.
The use of mixers can be configured, with pre-
mixing and intermittent or non-stop mixing.
Fertilizers can be applied in two different ways:
In series: one type of fertilizer after the other,
with just one injector. In proportional fertiga-
tion, independent proportions for every fertil-
izer.
In parallel: several fertilizers are applied si-
multaneously, with one injector for every one
of them. In proportional fertilization, inde-
pendent proportions for every type of fertilizer
and sub-program.
The injection track can be cleaned automatically,
with water, between the application of different types
of fertilizer and at the end of the fertilization.
Reading of the instantaneous flow of fertilizers, as
in irrigation.
With the option of “control pH”, it can be con-
trolled by injecting acid or base with a reference value
independent for every sub-program. With values of
alarm by excess or lack in the reading of the pH and in
the electrical conductivity (EC).
It is possible to choose the control of pH at the
pre-irrigation and post-irrigation.
PUMPING
It has from 1 to 4 general irrigation outputs, which
can be assigned to sectors, with independent activa-
tion and deactivation temporizations. The general
number 1, by means of the “pressure regulation op-
tion”, can give a 0-10 volt Analog output, in order to
connect it to a frequency variator and maintain a pres-
sure in the irrigation pipe line independent for every
sector.
Optional control of a diesel engine, with outputs
for start, stop, contact and warming up. Start and stop
control of the electrical pumps.
FLOWS
Every irrigation sector can be assigned to one of
the 4 possible volumetric counters to irrigate in liters
or m
3
. In the totals, the volume of irrigation and fertil-
izer is shared in proportion to the nominal flow as-
signed to every sector.
The fertilizer is programmed in liters, deciliters or
centiliters with 8 counters.
FILTER CLEANING
Up to four groups of independent filters, with the
following values:
The number of filters to be used in every group
can be configured. Two cleaning times for every filter
group. Pause time between filters. The cleaning can
be started by the differential pressure and/or by the
time or volume of water circulation. Start or not of the
