Netafim NETAFLEX 3G, Installation Manual

Page: 19 / 32

NETAFLEX™ 3G INSTALLATION MANUAL 19
SYSTEM OPERATION
NOTE
The following procedure describes the operations that should be performed, regardless of the type
of controller in use. For the operation of the specific controller interface, see the Controller Manual.
Preparations for running the NetaFlex™ 3G
For NetaFlex™ 3Gs with an onboard or external controller:
Run the controller and enter preliminary general settings (see the Controller Manual).
Ensure that the INPUT for protection against low level in the mixing tank is connected to the controller and
defined (see the Controller Manual).
Connect all the elements (valves, pumps, filters, sensors, etc.) to the controller (see the Controller Manual).
Manual test of controller outputs
Perform the test to make sure that all the elements (valves, pumps, filters, sensors, etc.) function properly
upon command from the controller.
Run the test using the controller's TEST menu (see the Controller Manual).
Set the relay status of the dosing channels to MANUAL
and make sure that the irrigation program is not defined (see the Controller Manual).
NOTE
Make sure the dosing valve selector is in the CLOSED position.
To check that the dosing channels are working:
When the OPEN command from the controller is given -
the LED on the dosing valve is lit.
Calibration of sensors
Calibrate the EC and pH sensors (see the EC/pH Transmitter Manual).
ATTENTION
Unions tend to get loose during transit.
Before operating the NetaFlex™ 3G, tighten all the unions of the NetaFlex™ 3G by hand.
Filling the NetaFlex™ 3G with water for the first time
CAUTION
When opening or closing any manual valve, always do it gradually, to prevent damage to the
system by water hammer.
Gradualy fill the NetaFlex™ 3G with water until the float valve closes.
If the float valve does not close the tank may overflow - immediatety stop filling the tank and check the
float valve for fault)
Keep the system under static pressure for 10 minutes and visually check for leaks in the filling line.
Verify that the arm of the float remains horizontal (The water level in the tank is kept).
Perform a simulation test with a 10 liter (2 gallons) bucket of water. (see Calibration , page 22).
OPEN CLOSE