Netaflex™ 3G User Manual
Contents
1. NE 7 Y CS ane LD Wie ek NA E V KINNE AAAA 0 IN le DES y NETAFIM V 001 01 AUGUST 2013 COPYRIGHT 2013 NETAFIM NO PARTS OF THIS PUBLICATION MAY BE REPRODUCED STORED IN AN AUTOMATED DATA FILE OR MADE PUBLIC IN ANY FORM OR BY ANY MEANS WHETHER ELECTRONIC MECHANICAL BY PHOTOCOPYING RECORDING OR IN ANY OTHER MANNER WITHOUT PRIOR WRITTEN PERMISSION OF THE PUBLISHER ALTHOUGH NETAFIM TAKES THE GREATEST POSSIBLE CARE IN DESIGNING AND PRODUCING BOTH ITS PRODUCTS AND THE ASSOCIATED DOCUM NETAFIM WILL NOT ACCEPT RE THE USE OF THIS MANUAL NETAFIM RESERVES THE RIGHT ENTATION THEY MAY STILL INCLUDE FAULTS SPONSIBILITY FOR DAMAGE RESULTING FROM THE USE OF NETAFIM S PRODUCTS OR TO MAKE CHANGES AND IMPROVEMENTS TO ITS PRODUCTS AND OR THE ASSOCIATED DOCUMENTATION WITHOUT PRIOR NOTICE M FOREIGN LANGUAGES In the event that you a acknowledge and agre re reading this manual in a language other than the English language you e that the English language version shall prevail in case of inconsistency or contradiction in interpretation or translation CONTENTS Use of symbols Safety Safety instructions When using acid chemicals Description Introduction Highlights Advantages Specifications Add ons Typical installation over2. the crops the product and or the infrastructure in the presence of acid AN ELECTRICAL HAZARD The following text contains instructions aimed at preventing bodily injury or direct damage to the NetaFlex 3G and or the infrastructure in the presence of electricity SAFETY FOOTWEAR The following text contains instructions aimed at preventing foot injury Y PROTECTIVE EQUIPMENT The following text contains instructions aimed at preventing damage to health or bodily injury in the presence of fertilizers acid or other chemicals EXAMPLE The following text provides an example to clarify the operation of the settings method of operation or installation The values used in the examples are hypothetical Do not apply these values to your own situation TIP w The following text provides clarification tips or useful information NETAFLEX 3G USER MANUAL 5 SAFETY Safety instructions e All safety regulations must be applied e Ensure that the installation is carried out in a manner that prevents leaks from the NetaFlex M 3G the fertilizer acid tanks and lines the peripherals and the accessories contaminating the environment soil or ambient area e Electrical installation must be performed by an authorized electrician only The electrical installation must comply with the local safety standards and regulations e Installation must be performed by authorized technicians only e Protection provided by the equipment can
3. CM25 3 CR32 3 2 CR32 3 CR45 2 CR45 3 2 CR64 2 1 CR64 2 p Net weight 156 kg 344 lbs 159 kg 351 Ibs 153 kg 337 Ibs 176 kg 388 Ibs 217 kg 478 Ibs 217 kg 237 kg 283 kg 624 Ibs 240 kg 529 Ibs i l l IlI Packed weight 286 kg 631 lbs 289 kg 283 kg 306 kg 347 kg i 414 kg 413 kg 478 lbs 347 kg 765 lbs 522 lbs 367 kg 809 Ibs 637 Ibs 624 lbs 675 lbs 65 lbs 913 lbs 911 lbs 370 kg 816 lbs Order of magnitude only final weights are issued with the product order 12 NETAFLEX 3G USER MANUAL Allow 20 cm 8 arround the NetaFlex M 3G for inlet outlet and fertilizer pipes connections System pump Packed weight CM10 2 158 kg 348 lbs 288 kg 635 Ibs CM10 3 161 kg 355 Ibs CM15 2 160 kg 353 Ibs CM25 2 172 kg 379 lbs CR32 2 2 214kg CR32 2 CR45 2 2 CR64 2 2 226 kg 472 lbs 498 lbs 280 kg 617 lbs 233 kg 279 kg 615 lbs 514 lbs 291 kg 642 Ibs 290 kg 639 lbs 356 kg 785 Ibs 410 kg 904 lbs 363 kg 800 Ibs 409 kg 902 Ibs 296 kg 653 lbs 426 kg 939 lbs OPERATION AND MAINTENANCE Operation The routine operation of the NetaFlex 3G is almost totally automatic controlled by the controller for the operation of the controller see the Controlle
4. agronomist consultant 3 Calibration of the NetaFlex 3G while irrigating N WARNING Extreme EC or pH values mav damage the crop Perform the following procedure only after completing stage 2 above Simulation test with a 10 liter or 2 US gallon bucket of water with satisfactory results NOTE The following steps explain the operations to be performed regardless of the type of controller used For the operation of your controller s interface consult the Controller Manual However since the NMC Pro controller is widely used its interface screens for the execution of each step are noted NOTE Before the calibration confirm that the EC and the pH sensors of the NetaFlex 3G have been calibrated according to the instructions in the EC pH Installation Manual Define the dosing configuration while the EC and pH controls are in the OFF position NMC Pro screen 7 7 In the EC and pH alarm definitions set the EC and pH alarm to the OFF position deactivated NMC Pro screen 3 6 Enter the data for the irrigation valves and the dosing ratio for each dosing channel NMC Pro screens 1 1 1 2 1 3 Run the program NMC Pro screen 2 2 Allow a few minutes for the pipes to fill up and the flow rate to stabilize Reduce the suction of the dosing channels by adjusting the manual needle valve of each dosing channel until the target Rotameter reading calculated in stage 1 page 24 is attained NOTE The Rotameter s sacle
5. is calibrated by the manufacturer for measurement of the flow rate of water H20 Certain inacuracies may be observed when the flow rate of liquids with different densities such as fertilizers and acids is measured Check the appropriate controller screen for the measured EC and pH values NMC Pro hot screen 4 If the desired values have been reached check opening percentages of the dosing valves The EC and pH target values should be attained with the dosing valves opened to 50 80 of their capacity If the EC and pH target values are attained with the dosing valves opened less than 50 reduce the dosing channel suction rate until the EC and pH target values are reached NOTE Every change in the flow rate of the needle valve must be updated afterwards in the controller NMC Pro screen 7 6 24 NETAFLEX 3G USER MANUAL APPENDIX 1 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 In a field where the flow rate changes significantly from one irrigation shift to the next try to be at a minimum of 50 dosing valve opening for the low flow rate shift and a maximum of 80 for the high flow rate shift When the calibration pr
6. weeks Manual filters only 14 NETAFLEX 3G USER MANUAL 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 3G When verifying the flow rate for each dosing channel make sure the cursors on all the Rotameters are adjusted NOTE The Rotameter s sacle is calibrated by the manufacturer for measurement of the flow rate of water H20 Certain inacuracies may be observed when the flow rate of liquids with different densities such as fertilizers and acids is measured pS ATTENTION Once a month read the measured flow rates of the dosing channels and compare them with the flow rates defined in the controller to check whether any changes have occurred Winterization CAUTION q When opening or closing any manual valve always do it gradually to prevent damage to the system by water hammer If the NetaFlex 3G is located in an unheated space where the temperature might drop below 5 C 41 F if the system is not required for irrigation during the winter perform the following procedure to avoid damage caused by freezing when the NetaFlex M 3G is idle for the winter period At the beginning of winter M CAUTION Before removing the EC a
7. ER MANUAL 9 DESCRIPTION Typical installation overview The drawing below represents a typical NetaFlex 3G infrastructure NetaFlex 3G A jesa e UN 1 Q Filling pump B Fertilizer acid stock tank Water meter B Filling line filter Manual valve fertilizer D Pressure reducing valve D Fertilizer acid filter 10 NETAFLEX 3G USER MANUAL DESCRIPTION Schematic diagram LEGEND scope of delivery gt direction of flow System pump O EC sensors 2 D Filling pump O Tank O pH sensors 2 B Filling line filter Dosing channel Venturi O Float valve D Pressure reducing valve Control panel including O Pressure gauge Fertilizer acid stock tank Controller EC pH tranceducer Upper manifold filter D Manual valve fertilizer electric switchboard D Low level switch D Fertilizer acid filter D Non return valve B Water meter NETAFLEX 3G USER MANUAL 11 DESCRIPTION Dimensions Table 6 Extrenal dimensions NetaFlex M 3G external dimensions W D H 109 148 133 5 cm 43 58 3 52 5 Package dimensions W D H 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 NOT Weights E The weight of the NetaFlex 3G varies according to the selected system pump Table 7 System pum CM10 3 CM10 4 CM25 2
8. ank manual valve is in the OPEN position Check that the fertilizer acid filter B is clean If not it should be dismantled and thoroughly cleaned Check the fertilizer acid line from the stock tank to the dosing channel for leaks and breaches and make sure all the connectors are tightened Make sure the dosing channel s needle valve is open according to the the initial setting Visually check the needle valve for chemical damage internal deformation If internal deformation is present replace the needle valve Visually check the needle valve for clogging If clogging is present thoroughly clean the needle valve Check that the dosing valve is functioning With the controller in MANUAL mode set the dosing valve to ON see the Controller Manual The LED on the dosing valve should be lit If it is not have a qualified electrician check the dosing valve s cable for electrical continuity If the cable is in working order check the controller see the Controller Manual If the controller and the cable are in working order toggle the dosing valve to OFF and again to ON in the controller see the Controller Manual A Click should be heard from the dosing valve with each toggle If a Click is not heard replace the dosing valve consult your local Netafim representative If a Click is heard and the dosing valve still does not open disconnect the dosing valve from the dosing channel and with the dos
9. be impaired if the equipment is used in a manner other than that specified by the manufacturer IU WARNING In agricultural environment always wear protective footwear N WARNING Measures must be taken to prevent fertilizer infiltration of the water source to avoid water pollution CAUTION N When opening or closing any manual valve always do it gradually to prevent damage to the system by water hammer NOTE The maximum sound level produced by the equipment does not exceed 70dB 6 JNETAFLEXTM 3G USER MANUAL SAFETY When using acid chemicals aw ACID HAZARD When using acid always observe the acid manufacturer s safety instructions Y PM WARNING Always use protective equipment gloves and goggles when handling fertilizers acid and other chemicals JO ATTENTION Table 2 When dosing acid respect the concentration of the acid used For maintenance of drippers Phosphoric Hydrochloric Hydrogen peroxide H202 hypochloride YN ED D G z 2 a e A is by weight at 21 C 70 F The table indicates the resistance of the dosing channel components to acid and is not a recommendation to use the acids mentioned WARNING Exceeding the recommended acid concentrations will damage the dosing channels WARNING Substances such as chemicals for pest disease control might be corrosive and damage the NetaFlex 3G When using any substance other than fertilizers or acids not exceeding the concent
10. d Calcium Nitrate gt Calcium Phosphate In case of doubt regarding the use of any combination of fertilizers in the dual dosing channel consult your local Netafim representative NETAFLEX 3G USER MANUAL 13 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 CAUTION N When opening or closing any manual valve always do it gradually to prevent damage to the system by water hammer To prevent failures and extend the life cycle of the NetaFlex 3G the user must carry out regular maintenance e Keep the NetaFlex 3G dosing unit and its immediate environment clean and dry M CAUTION Before calibrating the EC and pH sensors make sure there is no pressure in the system e The NetaFlex 3G dosing unit and the supply water and irrigation system must be inspected regularly Table 5 Regular inspection Description Howwoften Instructions Rinsing of fertilizer filters Rinsing of supply water filters Rinsing of upper manifold filter Every 4 weeks Water and fertilizer leak inspection Calibrati f the pH E 2 4 k a RE wes See the EC pH Transducer Manual Calibration of the EC sensor Every 4
11. d 65 PSI according to the system requirements If it is not restore the original water supply conditions Make sure the filters on the main line upstream from the NetaFlex 3G are clean and free of clogging Check the finger filter of the float valve s command loop for clogging If it is clogged dismantle it and clean it thoroughly with running water CAUTION Only qualified electricians are permitted to perform electrical installations and repairs Have a qualified electrician check the overload protection breaker see the Switchboard documentation If it is not on the ON position turn it to ON Rem D 0 If it is on the ON position toggle it once to OFF and to ON again do not repeat this action RESET TEST If the overload protection breaker trips turns to OFF or to TRIP again the electrician will check if the system pump is in working order 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 20 NETAFLEX 3G USER MANUAL WARRANTY Netafim M warrants all the components of the NetaFlex M 3G to be free of defects in material and workmanship for 1 one year from the date of installation provided the installation has been reported to Netafim M within 30 days of installation If the installation was not reported or was
12. draulic conditions If YES restore the original hydraulic conditions f NO or if the malfunction is still not fixed after restoring the original hydraulic conditions have a qualified electrician check the system pump Does it function Does it rotate in the correct direction If the pump does not rotate in the correct direction the electrician should swap between phases L1 and L3 see the system pump Manual Make sure there is no air pocket in the system pump impeller chamber Loosen the dosing system pump s bleeding screw and wait until a stable flow free of air bubbles is obtained then retighten the bleeding screw act according to the instructions in the system pump Manual Check the system pump s impeller chamber for clogging 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 Symptoms regarding a single dosing channel If one or more of the following symptoms occur regarding a single dosing channel perform the actions listed bellow NETAFLEX 3G USER MANUAL 17 TROUBLESHOOTING Controller warnings Low EC e High pH e Low fertilizer acid flow rate Rotameter reading Low fertilizer acid flow rate Action Check that there is fertilizer acid solution in the stock tank Q Check that the stock t
13. ed by the dosing ratio see example below and mix thoroughly with the water in the bucket EXAMPLE Metric units Y G l G RA For a fertilizers dosing ratio of 10 I m each S and an acid dosing ratio of 2 m the quantities for 10 liters of water in the A Bucket simulation test will be 100 cc of each fertilizer solution and 20 cc of the acid solution 10 liters 2 US gal US units For a fertilizers dosing ratio of 3 0 US gal THG each and an acid dosing ratio of 1 1 US gal THG the quantities for 2 US gallons of water in the Bucket simulation test will be 0 76 oz of each fertilizer solution and 0 28 oz of the acid solution DEFINITIONS 1 US gal 128 oz 30X2 1000 11X2 1000 0 006 US gal 0 768 oz 0 0022 US gal 0 28 oz Measure the EC and the pH levels of the mixture in the bucket using calibrated portable sensors Compare the measured EC and pH values to the target values set by the agronomist consultant EXAMPLE After adding the fertilizers and acid Target values Deviation from target value eee 30 Target value 30 NETAFLEX 3G USER MANUAL 23 APPENDIX 1 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 If the values are out of the 30 range check the data and consult the
14. els equipped with quick action dosing valves e Fast and efficient Nutrigation recipe adjustments e Easy integration into existing irrigation systems Netafim s NMC and third party controllers e Multilingual system e Wide range of integrated accessories and peripherals e High quality components and PVC e Aluminum corrosion resistant frame with adjustable legs e Made by Netafim Advantages e Easy to install and maintain system e Highly profitable price performance ratio e Requires minimal investment with rapid ROI Productive Employing precise EC and pH control assists in delivering a high quality product with outstanding yields single or dual EC and pH control sets are available e Uniform Delivers a consistent quantity or ratio of nutrients in a homogenous solution thanks to an open mixing tank design e Flexible Works with a wide range of dosing channel flow rates up to 6 units of 50 600 I hr 13 158 GPH Each dosing channel is fitted with a multipurpose dosing valve for the dosing of fertilizer or acid at any dosing rate up to 600 l hr 158 GPH Compatible with 50 60 Hz electricity frequency Scalable System flow rates from 3 m h 13 GPM to 64 m h 282 GPM e Focused Made for soil soilless greenhouse applications 8 NETAFLEX 3G USER MANUAL DESCRIPTION Specifications Output flow rate and pressure The NetaFlex M 3G ensures a satisfactory mixture in a vast range of system performances Flow rate fr
15. f you identify faultv parts consult your local Netafim M representative A y p CAUTION Only qualified electricians are permitted to perform electrical installations and repairs CAUTION If isolation valves have been installed on the system ensure that they are in closed position before troubleshooting any hydraulic malfunction ATTENTION If fertilizers from a different manufacturer have been recently in use and changes in EC and pH are recorded perform calibration of the system before assuming a malfunction of the NetaFlex 3G see Appendix 1 Calibration page 22 Symptoms regarding more than one single dosing channel If one or more of the following symptoms occur regarding more than one single dosing channel perform the actions listed bellow Controller warnings e Low EC e High pH e Low fertilizer acid flow rate Rotameter reading e Low fertilizer acid flow rate Action 1 For controller warnings only check and calibrate the EC and pH sensors see the EC pH Transducer Manual 2 Have a qualified electrician check that electricity is being supplied to the NetaFlex 3G and that all the electrical components are properly connected see the Switchboard documentation 16 NETAFLEX 3G USER MANUAL TROUBLESHOOTING 3 4 5 Compare the readings of the pressure gauge and the Rotameters of the dosing channels to the readings before the malfunction started and check wether changes occurred to the hy
16. ing valve set to ON in the controller see the Controller Manual check for clogging by injecting water at low pressure through the dosing valve If there is clogging thoroughly clean the dosing valve with running water If there is no clogging and the dosing valve still does not open replace it consult your local Netafim M representative If after implementing all the above steps the malfunction is still not fixed 9 10 Disconnect the Venturi from the manifolds and from the dosing channel and check it for clogging visually and by injecting water at low pressure through it If there is clogging thoroughly clean the Venturi E with running water Visually check the Venturi for chemical damage 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 18 NETAFLEX 3G USER MANUAL TROUBLESHOOTING Symptoms while idle If the following symptoms occur while the NetaFlex 3G is idle perform the actions listed bellow Controller warnings e High EC Low pH e While idle Uncontrolled fertilizer acid flow rate or a fertilizer acid leak or breach Action NOTE Make sure the dosing valve selector is in the CLOSED position Check ifthe dosing valves leak when closed 1 Close all the manual valves for fer
17. low rate of water H20 Certain inacuracies may be observed when the flow rate of liquids with different densities such as fertilizers and acids is measured 2 Simulation test with a 10 liter 2 US gal bucket of water Instruments needed Good quality portable EC and pH sensors finely calibrated e Calibration solutions for EC and pH e Bucket with a scale for up to 10 liters 2 US gallons e Measuring tube or syringe with a scale for up to 100 cc 1 oz e Clean preferably distilled water for cleaning sensors during calibration e Blotting paper for cleaning and drying The client prepares the fertilizer solutions and the acid solution if required in the stock tanks according to the recipe advised by the agronomist consultant JO ATTENTION Ensure the fertilizers and acid solutions in the stock tanks have been thoroughiv agitated before starting the simulation 22 JNETAFLEXTM 3G USER MANUAL APPENDIX 1 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 Using a measuring tube or a syringe take a dose from each fertilizer solution and from the acid solution if used according to the proportions determin
18. nd pH sensors make sure there is no pressure in the system e Remove EC and pH sensors and store the pH sensor immersed in KCL solution supplied with the sensor or in calibration buffer 4 at temperature 18 25 C 64 77 F The pH sensor must never be dry see EC pH Transducer Manual e Empty the NetaFlex M 3G of water Atthe end of winter NOTE It is reccomended to install new EC and pH sensors at the begining of a new season e Reinstall the EC and pH sensors and calibrate them see EC pH Transducer Manual e Restore the pressure in the system NETAFLEX 3G USER MANUAL 15 TROUBLESHOOTING This chapter is a systematic guide to the actions to be taken in the case of a malfunction of the NetaFlex 3G 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 p ATTENTION Before proceeding to troubleshoot anv malfunction make sure that e The controller settings regarding the dosing channels are correct and match the dosing channels of the NetaFlex M 3G see the Controller Manual e 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 I
19. ns in Netafim s official warranty statement For the full text of Netafim s official warranty statement please contact your local Netafim representative NETAFLEX 3G USER MANUAL 21 APPENDIX 1 CALIBRATION The process of calibrating the NetaFlex M 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 Metric units EXAMPLE Flow rate of the largest irrigation shift L I m hr m hr x x Dosing ratio of a single fertilizer acid I ms I ms Result a single fertilizer acid flow rate l hr I hr X 1 25 X 1 25 Result target Rotameter reading hr I hr DEFINITION l u The quantity of fertilizer acid I Dosing ratio 1 m irrigation water US units EXAMPLE Flow rate of the largest irrigation shift _ GPM GPM X X Dosing ratio of a single fertilizer acid J US gal 1000 US gal US gal 1000 US gal X 0 06 X 0 06 Result a single fertilizer acid flow rate JGPH X1 25 Result target Rotameter reading GPH DEFINITION Dosing tie The quantity of fertilizer acid US gal 1 THG 1000 US gal irrigation water NOTE The Rotameter s sacle is calibrated by the manufacturer for measurement of the f
20. ocess is completed return to the EC and pH control screen in the controller define the deviation in EC and pH values for the channels and switch the EC and pH control to ON NMC Pro screen 7 7 7 6 In the EC and pH alarm definitions define the EC and pH deviation from the target values that if attained will trigger the alarm and set the EC and pH alarm to the ON position activated NMC Pro screen 3 5 3 6 NOTE EC and pH values must not exceed a 30 deviation from the target values Ja ATTENTION Once a month read the measured flow rates of the dosing channels and compare them with the flow rates defined in the controller in order to check whether changes have occurred NMC Pro screen 7 6 After completing the calibration process write down the data as reference for calibration of the NetaFlex 3G in the future NETAFLEX 3G USER MANUAL 25 WWW NETAFIM COM
21. om 3 m h 13 GPM to 64 m h 282 GPM at a wide range of output pressure according to the selected system pump A single NetaFlex 3G will accommodate from a 0 1 Ha 0 25 Acres to a 10 Ha 25 Acres nursery For output pressure lower than 3 0 bar 44 PSI consult your local Netafim M representative Fertilizer dosing capacity The NetaFlex 3G accommodates up to 6 dosing channels of various types in many mixed configuration e 50 I hr 13 GPH e 150 I hr 40 GPH e 400 I hr 105 GPH e 600 I hr 158 GPH x For applications requiring more than 6 dosing channels consult your local Netafim M representative Add ons You can extend the functionality of your NetaFlex 3G by means of the many add ons offering a wide variety of useful functions All the add ons are easy to connect to the NetaFlex 3G here are a few examples Fertilizer meter with electric output Enables continuous reading of fertilizer dosing Useful in applications where the costumer wants a broader indication on fertilizer flow on top of the EC and pH readings Stock selection Enables the dosing of multiple fertilizers through a single dosing channel in cases where simultaneous dosing is not required Available in a wide variety of configurations from a single channel with 2 fertilizers to as many channels and fertilizers as required For further information on the NetaFlex 3G add ons consult your local Netafim M representative NETAFLEX 3G US
22. r Manual Necessary conditions for the proper operation of the NetaFlex 3G e Electricity is supplied to the NetaFlex 3G e Source water should enter the NetaFlex 3G at a flow rate equal to the maximum flow rate required for the field If the flow rate at the inlet of the NetaFlex 3G is insufficient the low level switch will be activated and the NetaFlex 3G operation will be stopped e The water entering the NetaFlex 3G should be within a pressure range of 2 to 4 5 bar 29 PSI to 65 PSI e The water entering the NetaFlex 3G should be within a temperature range of 10 C to 35 C 50 F to 95 F e The source water to the NetaFlex 3G should be of a satisfactory chemical quality If water pre treatment is required apply chemical conditioning before the water reaches the NetaFlex M 3G Dual dosing channel If more than 4 dosing channels are required up to 6 the dual dosing channel option is installed e Up to 2 dual dosing channels can be installed on the NetaFlex M 3G at the farthest manifold positions 1 and 4 M CAUTION There are fertilizer combinations that should never be used in the dual dosing channel as they will induce crystalization and cause clogging of the pipes e Calcium Nitrate Ammonium Sulfate gt Calcium Sulfate Calcium Nitrate Potassium Sulfate gt Calcium Sulfate e MKP Calcium Nitrate gt Calcium Phosphate e MAP Calcium Nitrate gt Calcium Phosphate e Phosphoric aci
23. rations in table 1 above always observe the manufacturer s instructions for corrosivity In case of any doubt consult your local Netafim representative NETAFLEX 3G USER MANUAL 7 DESCRIPTION Introduction The NetaFlex M 3G is a reliable open tank dosing system The NetaFlex M 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 M and third party control and monitoring systems The NetaFlex 3G always injects a uniform quantity of nutrients while performing perfect EC and pH control The NetaFlex 3G can accommodate a wide variety of dosing channels for fertilizer and concentrated diluted acid Up to 6 dosing channels of various types from 50 I hr 13 GPH each up to 600 I hr 158 GPH each in many mixed configurations The NetaFlex 3G accommodates a wide variety of system pumps peripherals and accessories to meet a vast range of applications and infrastructure constraints Highlights e Wide range of soil substrate applications e Built around a standard platform e Minimal investment requirement e Efficient water fertilizer and energy consumption e Very large range of irrigation water capacities Quantitative or proportional Nutrigation capabilities e Precise EC and pH control e Almost completely maintenance free Venturi operations no moving parts e Highly accurate dosing chann
24. reported later than 30 days from the date of installation Netafim M will warrant the NetaFlex M 3G for a period of 18 months from the date of production according to its serial number If a defect is discovered during the applicable warranty period Netafim M will repair or replace at its discretion the product or the defective part The above does not apply to EC and pH sensors since they are wearable Netafim M will warrant these items to be free of defects in material and workmanship for 3 months from the date of installation provided the installation has been reported to Netafim M within 30 days or 6 months from date of production if installation was not reported or was reported later than 30 days from the date of installation CAUTION N When not installed the pH sensor must be immersed in KCL solution supplied with the sensor or in calibration buffer 4 at temperature 18 25 C 64 77 F protected from freezing and not be exposed to pressure greater than 6 bars 87 PSI Damage due to these causes is not covered by warranty This warranty does not extend to repairs adjustments or replacements of a NetaFlex M 3G or part that results from misuse negligence alteration force majeure lightning power surge improper installation or improper maintenance If a defect arises in your Netafim product during the warranty period contact your local Netafim representative Limited warranty This warranty is subject to the conditio
25. tilizers and acid 2 Make sure the level of the solution in all the the stock tanks is higher than the dosing valves 3 With the controller in MANUAL mode set all the dosing valves to OFF see the Controller Manual 4 Disconect one of the the dosing valves from the Venturi downstream from the dosing valve 5 Open the fertilizer manual valve If a leak from the dosing valve is visible disconect the dosing valve from the dosing channel 6 With the controller in MANUAL mode set the dosing valve to ON see the Controller Manual 7 Thoroughly clean the dosing valve with running water 8 Repeat steps 4 7 for each fertilizer and acid dosing channel 9 After completing the procedure open all the manual valves for fertilizers and acid 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 NETAFLEX 3G USER MANUAL 19 TROUBLESHOOTING The NetaFlex M 3G is not running If the following symptom occurs during operation perform the actions listed below Controller warning e NO FLOW Action 1 2 3 3 Check if the water in the tank reaches the float Check the water supplv at the inlet of the NetaFlex M 3G The flow rate should be equal to the maximum flow rate required for the field and the pressure should be between 2 bar and 4 5 bar 29 PSI an
26. view 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 3G is not running Warranty Appendices Appendix 1 Calibration 1 Calculation of dosing channels opening percentage 2 Simulation with a 10 liter 2 US gal bucket of water 3 Calibration of the NetaFlex 3G while irrigating 4 NETAFLEX 3G USER MANUAL 5 N 00 0 11 12 12 13 14 15 16 17 19 20 21 22 22 24 USE OF SYMBOLS The symbols used in this manual refer to the following WARNING The following text contains instructions aimed at preventing bodily injury or direct damage to the crops the NetaFlex 3G and or the infrastructure CAUTION Man following text contains instructions aimed at preventing unwanted system operation installation or conditions that if not followed might void the warranty Ja ATTENTION The following text contains instructions aimed at enhancing the efficiency of usage of the instructions in the manual NOTE The following text contains instructions aimed at emphasizing certain aspect of the operation of the system or installation AN ACID HAZARD The following text contains instructions aimed at preventing bodily injury or direct damage to
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