Sec.
Theme
1.
2.
3.
4.
5.
6.
6.1.
6.2.
7.
8.
9.
10.
11.
12.
13.
PRESENTATION
We wish to take this opportunity to thank you for
the confidence in us which you have demonstrated in
expressing interest or acquiring Agrónic 54.
This confidence, for our part, stimulates our efforts
to meet and surpass the expectations of our clients to
justify the traditional quality of our products.
This Manual will allow you to see the capacity of
the unit as well as its installation and use.
However, if after reading this you still have any
doubts, contact us and we will happily answer them.
INSTRUCTION
MANUAL
INDEX
24 Vac
1. INTRODUCTION
Page
Agrónic 54 is a unit which regulates both the
electrical conductivity (EC) of irrigation water, injecting
1
2 possible fertilizers, and its pH, injecting acid or base.
1
There are 3 formulas or programs, which are
2
started by external orders received by the correspond-
2
ing inputs, so this unit itself does not control the irriga-
3
tion sectors.
3
There are 2 versions, according to the way in
3
which the dosage is done: one with "pulsed injection",
3
which works on the solenoids, another one with "ana-
4
log injection", which works on frequency variators.
5
In the "by pulsed injection" version, to maintain
6
the EC, the unit applies every certain seconds, a dose
6
of every fertilizer, which is related to the desired pro-
portion between fertilizers and the programmed refer-
6
ence. To maintain the pH the unit works in a similar
7
way.
7
In the "analog injection" version, to maintain the
8
EC and/or the pH, the unit changes the injection
speed of the engines until it gets the programmed
references.
In the version with pulsed injection, there are out-
puts for 2 fertilizers and 1 acid or base.
In the version with analog injection (0-10 Vdc),
there is an output for fertilizer and another one for acid
or base.
In both versions, there is also a general output
and another one for alarm and/or mixer.
Feeding of the unit at 24 Vac. Optionally, 12 Vdc.
Outputs at 24 Vac in the version with pulsed in-
jection and at 0-10 Vdc in the version with analog in-
jection.
There are 3 inputs for the start of the fertilization
programs and 1 input to detect malfunctions.
There is also 1 input for the conductivity sensor
and 1 for the pH sensor, with a transmitter, which is
integrated in the unit circuitry.
The calibration of sensors is done with the key-
board.
1
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