Netafim NETAJET 4G, Руководство по установке

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NETAJET
™
4G INSTALLATION MANUAL 33
SYSTEM OPERATION
Calibration of EC and pH sensors
Calibrate the EC and pH sensors (see the enclosed EC/pH Transducer Manual).
CAUTION
Do not operate the NetaJet™ 4G if the manual isolation valves installed at the inlet and outlet of
the system are closed!
ATTENTION
Unions tend to get loose during transit.
Before operating the NetaJet™ 4G, tighten all the unions of the NetaJet™ 4G by hand.
Check for leaks
CAUTION
When opening or closing any manual valve, always do it gradually, to prevent damage to the
system by water hammer.
• Make sure all the field valves are closed.
• Gradually open the isolation valves installed at the inlet and outlet of the system until the required main
line pressure is attained.
Keep the system under static pressure for 10 minutes and check visually for leaks.
• Perform a simulation test with a 10-liter (2-US-gallon) bucket of water (see page 35 ).
Check the dosing booster operation
CAUTION
If isolation valves are installed at the NetaJet™ 4G inlet and outlet, ensure that they are open
before running the dosing booster.
• Switch the dosing booster to ON.
• Check that the dosing booster is rotating in the correct direction (see the enclosed Dosing Booster Manual).
HIGH VOLTAGE ELECTRICAL HAZARD
Before unplugging the system from the main power source,
switch the unit and the main power source OFF!
Running the NetaJet
™
4G
• Define a program in the controller for one valve or multiple valves (SHIFT) as defined in the irrigation
plan (see the enclosed Controller Manual).
• In the first stage, it is recommended that you define a program with quantitative or proportional
fertilization only, without EC/pH control (see the enclosed Controller Manual).
• Temporarily deactivate all alarms in the system - EC/pH, flow control, etc. (see the enclosed Controller Manual).
• Start the program and wait for the lines to be filled
(this takes a few minutes, depending on the size of the installation).
• Check that the flow and the pressure on the main line are stabilized (see the enclosed Controller Manual).
• Activate the dosing booster and the dosing channels.