INJECTION POINT
SENSOR
m/s
T delay
3.8.3 ADVANCED CONTROL OPTIONS.
3.8.3.1. REMOTE CONTROL: CONFIGURATION CHANNELS A/B.
Q
EC
PH
250
1.05
7.6
A
F02
5.4bar
B
CAL
PROG
ALM
HIST
AUX
mS
m3h
CONT
Change Units by pr/- and validate by ENT.
INPUTS
: Configuration of the Remote Control Inputs in Channels A and B. It allows configuring each Input with its
Channel, and activating both Channels just by one Input.
A START:
A. Activates pumps programmed A when 24Vac are used at the terminals of channel A.
A+B. Activates pumps programmed A or B when 24Vac are used at the terminals of channel A.
B START:
A. Activates pumps programmed A when 24Vac are used at the terminals of channel A.
A+B. Activates pumps programmed A or B when 24Vac are used at the terminals of channel A.
INPUT A START
A
INPUT B START B
OUTPUTS
Qtest = 0
A Tdelay 15s
B Tdelay 15s
PpH = 1
ENT
Q
EC
PH
250
1.05
7.6
A
F02
5.4bar
B
CAL
PROG
ALM
CONT
HIST
AUX
mS
m3h
Configuration from channels A and B.
3. CONFIGURATION
Q
EC
PH
250
1.05
7.6
A
F02
5.4bar
B
1
4
EC 31%
PH 86%
mS
m3h
OUTPUTS
:
Delay Time Configuration in the System for Channels A and B, corresponding to the Time passed between two
consecutive Orders from the Controller (see System Start-Up).
A fixed Delay Time can be defined (Q Test=0) or proportionally inverse to the Flow.
Q Test=0
: it allows establishing a Flow as Reference for defining the Delay Time (Tdelay) changeable by the Flow. If Q
Test =0 Delay Time is constant.
A Tdelay: 15s
Delay Time in Channel A
B Tdelay: 15s
Delay Time in Channel B
Example:
For 8” Pipe, Flow 100m3/h, water Speed is approximately 1m/s. If the distance between the Injection and Sensor
Point is 10m, the Delay Time of the System will be 10 seconds.
The Sensor will have a Reaction Time (approximately 10 seconds for the pH Sensor), which should be added to the
Delay Time of the System. Therefore, we should set a Tdelay = 20 seconds.
If there is a Filter between the Injection and Sensor Point, the Calculation of 10metersx1m/s = 10 seconds is no more
valid.
Therefore,
TDelay
changes when the Flow of the System change. To optimize the Adjustment, the TDelay can be
associated with a certain Flow (Q Test), so Controller 3000 changes
TDelay
according to Water Flow.
TDelay
is
limited from 5 to 120 seconds.
How to find Tdelay
1.-Start the irrigation make sure that there is no dosage of products.
2.-Wait until the readings of the sensors are stable.
3.-Start manually a dosing pump, for example fertilizer. In the same moment start a chronometer.
4.-After some time the reading of the sensor will start increasing up until its stable. In this moment the chronometer will stop,
and Tdelay is found.
3.8.3.2. PI CONTROL PARAMETERS
WATER CONTROLLER 3000
USER'S MANUAL
m3/h
20
