Netafim nmc-pro Operation & User’s Manual

Page 16 PROGRAM MENU 2.2.5 54BEC Pre-Control Use this option in hydraulic pre-control systems in greenhouses. When collecting excess water from drains, the grower can set an EC target before water goes through an irrigation system. This method reuses excess fertilizer and water, recycling them for a second irrigation run.  Note: An EC Pre-Control valve relay must be defined by a technician at installation. EC Pre-Control ON (this enables the control) Define pre-controlled EC target DOSING PROGRAM Program: 1 EC Pre-Control: ON INJECTION PER DOSING CHANNEL ...

Page 11 PROGRAM MENU 2.2 1BDosing Program For every irrigation program, define a Dosing Program that defines the quantity of fertilizer per channel and its delivery method. You can define up to 10 Dosing Programs.  Note: If there is more than one fertilizer tank for the selected dosing channel, refer to Selector, page 38. 3. Dosing Dosing can be according to one of the following: • Proportional quantity • Proportional time • Quantity • Time 2.2.1 50BProportional Quantity Proportional Quantity is the quantity of fertilizer distributed per quantity of water. The p ...

Page 31 PROGRAM MENU Example: As sunlight increases, a crop needs lower EC levels. The following screen illustrates increasing in the EC based on radiation. Since Irrigation Pro calculates the decrease in EC proportionally, there will be a 15% decrease when the radiation reaches 600 w/m2. 2.8.3 58BDrainage Influence on Target Radiation Sum Irrigation can be triggered by the Radiation Sum (Rad Sum). This Influence enables adjusting the Rad Sum based on the amount of drainage. To set the Drainage Influence on Rad Sum: 1. In Program > Irrigation, set Contr. to Rad Sum. 2. In ...

Page 10 PROGRAM MENU 2. Water Run Time Qty. Define Time o Define value for "before" and "after" time program  Note: Whatever figure you enter in Before/After is deducted from the total run time/quantity. For example if the run time is 15 minutes, a Before time of two minutes and After time of one minute, then the net dosing time is 12 minutes. WATER RUN TIME PROGRAM # Method Water Before After 1 2 3 4 5 6 7 8 9 TIME QTY. QTY. QTY. QTY. QTY. QTY. QTY. QTY 00:15:00 25.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 00:0200 5.000 0.000 0.000 0.000 0.000 0.000 0.000 0 000 00: ...

Page 22 PROGRAM MENU In this example, the seven day cycle begins on the fourth day (04/07). On the fourth day, the irrigation is water only (no dosing). 1 2 3 4 5 6 7 D - D W D - D 2.4 13BIrrigation Based on External Conditions Irrigation can be controlled by input from dry contact or analog sensor triggers. • If the Irrigation Program is active, these programs can only function after the Irrigation Program is completed. • If the Irrigation Program is inactive, these programs can function during the defined time frame. • In both cases, irrigation begins only when exte ...

Page 29 PROGRAM MENU • VPD Sum Limit: This parameter determines the minimal (accumulated) VPD required for irrigation to start. • Minimum Time: When irrigation begins, NMC Pro erases the current VPD sum and restarts the count. Minimum time is the minimal amount of time between irrigation starts, even if the radiation sum has reached its limit. • Maximum Time: This parameter determines the maximum amount of time between irrigation starts, even if the VPD limit has not been reached. 2.7 16BIntroduction to the Influence Program Irrigation Pro enables adjusting irrigation ...

Page 8 GENERAL INFORMATION To change the operation mode, press the LOG IN key Click the MODE icon and insert the password The controller recognizes the operation mode according to the password that is entered: MODE PASSWORD Read Only 0000 User 9785 or 0101 If an incorrect password is entered, this screen appears. The Operation mode can be configured to automatically return to the “Read-Only” mode after a certain amount of time.  Note: Refer to the SYSTEM SETUP section in the Installation Manual. SYSTEM SETUP HISTORY History Resolution ► 1 HOUR WEATHER STATION Contr ...