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NETAFLEX ™ USER MANUAL V 003.02 - DECEMBER 2020...
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ALTHOUGH NETAFIM TAKES THE GREATEST POSSIBLE CARE IN DESIGNING AND PRODUCING BOTH ITS PRODUCTS AND THE ASSOCIATED DOCUMENTATION, THEY MAY STILL INCLUDE FAULTS. NETAFIM WILL NOT ACCEPT RESPONSIBILITY FOR DAMAGE RESULTING FROM THE USE OF NETAFIM'S PRODUCTS OR THE USE OF THIS MANUAL.
CONTENTS Use of symbols Safety Safety instructions Safety instructions when using acid/chemicals Description Introduction Highlights Advantages Specifications Dual volume system Add-ons Typical installation overview Schematic diagram Dimensions Weights Operation, maintenance and winterization Operation Maintenance Winterization Troublehooting Symptoms regarding more than one single dosing channel Symptoms regarding a single dosing channel Symptoms while idle The NetaFlex™...
USE OF SYMBOLS The symbols used in this manual refer to the following: WARNING Contains instructions aimed at preventing bodily injury or direct damage to the crops, the NetaFlex™ 3G and/or the infrastructure. CAUTION Contains instructions aimed at preventing unwanted system operation, installation or conditions that, if not followed, might void the warranty.
SAFETY Safety instructions • All safety regulations must be applied. • Ensure that the installation is carried out in a manner that prevents leaks from the NetaFlex™ 3G, the fertilizer/acid tanks and lines, the peripherals and the accessories, contaminating the environment, soil or ambient area.
NetaFlex™ 3G. When using any substance other than fertilizers or acids not exceeding the concentrations in table 1 above, always observe the manufacturer's instructions for corrosivity. In case of any doubt, consult your local Netafim™ representative. 6 NETAFLEX™ 3G USER MANUAL...
The NetaFlex™ 3G is a reliable open-tank dosing system. The NetaFlex™ 3G ensures very precise and homogeneous nutrient dosing for greenhouse crops. The NetaFlex™ 3G is a modular CE-compliant dosing system that easily integrates with multiple Netafim™ and third-party control and monitoring systems.
400 l/hr (105 GPH) • 600 l/hr (158 GPH) * For applications requiring more than 6 dosing channels - consult your local Netafim™ representative. Dual volume system The NetaFlex™ 3G can perform with 100 or 200 liter solutions depending on the float valve location.
DESCRIPTION Dimensions Extrenal dimensions NetaFlex™ 3G external dimensions (W/D/H*) Package dimensions (W/D/H**) 109/148/133.5 cm (43/58.3/52.5") 131/166/159 cm (51.5/65.5/62.5") *The height varies by ±1 cm (±0.5") according to the adjustment of the legs. **The package height includes the pallet height of 15 cm (6"). NOTE Allow 20 cm (8") arround the NetaFlex™...
MAP + Calcium Nitrate => Calcium Phosphate • Phosphoric acid + Calcium Nitrate => Calcium Phosphate In case of doubt regarding the use of any combination of fertilizers in the dual dosing channel, consult your local Netafim™ representative. 12 NETAFLEX™ 3G USER MANUAL...
OPERATION AND MAINTENANCE Maintenance WARNING Never perform maintenance/repair of the NetaFlex™ 3G when the system is under pressure. Before performing maintenance/repair of the NetaFlex™ 3G, always set the controller to PAUSE. After completing the maintenance/repair activity always set the controller out of the PAUSE setting back to its previous setting.
OPERATION AND MAINTENANCE Check the NetaFlex™ 3G hydraulic conditions every 4 weeks Check the pressure gauge and the Rotameters of the dosing channels and compare the data to the initial settings in the controller (NMC Pro - screen 7.6). Make sure that no significant changes occurred to the hydraulic conditions of the NetaFlex™...
The controller settings regarding the field valves are correct (see the Controller Manual). Perform the actions in their order of appearance until the malfunction is fixed. If you identify faulty parts - consult your local Netafim™ representative. CAUTION Only qualified electricians are permitted to perform electrical installations and repairs!
If it is clogged - it should be dismantled and thoroughly cleaned (act according to the instructions in the system pump Manual). If after implementing all the above steps the malfunction is still not fixed - consult your your local Netafim™ representative.
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(internal deformation). If internal deformation is present - replace the Venturi (consult your local Netafim™ representative). If after implementing all the above steps the malfunction is still not fixed - consult your local Netafim™ representative. NETAFLEX™ 3G USER MANUAL 17...
10) If the malfunction is still not fixed - replace the dosing valve. If after implementing all the above steps the malfunction is still not fixed - consult your local Netafim™ representative. 18 NETAFLEX™ 3G USER MANUAL...
(see the system pump Manual) and check if there are irregularities in the electricity voltage supplied to the NetaFlex™ 3G. If after implementing all the above steps the malfunction is still not fixed - consult your local Netafim™ representative.
CALIBRATION The process of calibrating the NetaFlex™ 3G is carried out in three stages: 1. Calculation of dosing channels opening percentage To finely calibrate the NetaFlex™ 3G in order to achieve homogeneous and stable dosing, perform the following calculation for each dosing channel (fertilizers and acid) to determine the amount of suction reduction needed to attain the required fertilizer/acid flow rate.
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CALIBRATION Note the required dosing ratio of each fertilizer solution and the dosing ratio of the acid solution (if used). Fill a bucket with 10 liters (2 US gallons) of the client's supply water (without fertilizer or acid). Measure the EC and the pH levels of the water in the bucket using calibrated portable sensors. EXAMPLE Supply water (without fertilizer or acid) 0.3 Using a measuring tube or a syringe, take a dose from each fertilizer solution and from the acid solution (if...
CALIBRATION With the controller set to operate according to EC/pH values - if the EC and pH values measured in the bucket are within a range of ±30% deviation from the target values, the system will be able to correct them automatically.
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CALIBRATION If the EC and pH target values cannot be attained, and the dosing valves are opened more than 85%, measures should be taken to increase the dosing ratio - if feasible, slightly increase the concentration of the fertilizer solution and/or reduce the water flow rate to the field during irrigation. If not - consult the agronomist/consultant.
SPARE PARTS 200 L - Vertical Pump Part list , page 32 7.6.1 17.3 17.2 17.4 17.1 NETAFLEX™ 3G USER MANUAL 25...
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See page 29 Female connector 8*1/2 76400-002465 * For spare part ordering call your local Netafim™ representative having at hand the Serial Number of your NetaFlex™ 3G. Only with this number we can supply the correct part for your specific NetaFlex™ 3G.
SPARE PARTS System pump list For 60 Hz installations For 50 Hz installations Pump Electrical data Pump Electrical data Rated power: P2: 2.2 kW Rated power: P2: 2.5 kW Rated voltage: 3 x 230∆/400Y V Rated voltage: 3 x 220∆/440Y V CM 10-3 CM 10-2 Nominal current: 8.15/4.7 A...
NETAFLEX 3G HYDRAULIC CONDITION CHECKLIST Fill-in the table below once a month in order to assist Serial number the technician in case of booster pump or dosing channel Project name malfunction (The Reference data row is filled-in by the Technician name tecnician upon commissioning).
If the installation was not reported or was reported later than 30 days from the date of installation, Netafim™ will warrant the NetaFlex™ 3G for a period of 18 months from the date of production, according to its serial number.
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