Netafim Orbia GrowSphere MAX User Manual

Rev 01
|
GrowSphere
™
MAX User Manual
81
|
Controller Configuration
GrowSphere
Operating System
z
Control cycle: The time it takes the fertilizer
to travel from the injection point to the EC
sensor. During this time the fertilizer is mixed
with the irrigation water. This value is based
on the distance between the injection point
and the sensor location, the pipe diameter,
and the flow rate.
z
Delta: Defines the maximal deviation allowed
between the readings of two EC/pH sensors.
If the deviation, exceed this value, an alert will
be triggered.
z
Fine Tuning: Applied when the EC/pH values
are close to the target (i.e., 0.6 deviations
from the target value). The higher the set
number, the faster the EC/pH target will
be reached, and the more fertilizer will be
injected.
z
Coarse Tuning: Applied when the EC/pH
value is far from the target. The higher the
number is set, the more rapid the fertilizer
quantities will be increased in order to reach
the target values more quickly.
It is important to consider that as a result of
fast (aggressive) changes, the EC/pH values
will overshoot the EC/pH target. If slow (less
aggressive) changes are made, it will take
longer to reach the EC/pH target, with less
deviation as a result.
z
Deadband: Defines a range around the
reading value that the system will ignore
changes of the readings.
z
Integ: Defines how fast the system will
correct between high and low deviation.
z
Control: Enables defining what sensor/s is
used to control the process.
z
Avg. Filter Speed: Defines how often the
average of the two sensors readings is
calculated. 0- defines a slow update of the
calculated average. 10 - the calculated
average is calculated often.
z
Minimal On Time: The minimal amount
of time the dosing channel must be on.
This should be set based on the minimum
activation time of the control valve or dosing
channel motor.
z
Minimal Off Time: The minimal amount of
time that the dosing channel can be off. This
value is important to ensure good dosing
distribution.
z
Water Flow Stability Time: A delay at the
start of the irrigation shift necessary for
the water meter to record a stable flow
rate. Relevant when using EC/pH dosing
control.
z
Booster Off Delay: Causes the dosing
booster to turn off the defined amount of
time after the end of the dosing process.
Dosing Parameters:
NOTE
When Extensive is selected, only the
following parameters are available:
z
Minimal On Time
z
Minimal Off Time
z
Water Flow Stability Time
z
Booster Off Delay
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Netafim Orbia GrowSphere MAX Specifications

General

Brand	Netafim
Model	Orbia GrowSphere MAX
Category	Controller
Language	English