NMC-Junior Pro Installation Manual
Page 58
9.2.2.3 Drain Influence on Minimum Time
Minimum time defines the minimum break between irrigations. Even if the Rad/VPD sum limit / condition limit has
been reached irrigation does not take place until this time has passed. This function enables adjusting the Minimum
Time based on the drainage.
To set the Drainage Influence on the Minimum Time:
1. In Installation > Digital Input, define which digital input is the drain meter.
Note: The drainage must be defined correctly! You can check the drainage meter status using Hot key 9.
2. In Configuration > Valve Configuration define which valve number corresponds to which drainage meter.
3. In Configuration > Drainage Configuration, define the drainage meter’s Ratio Liter/Pulse.
4. In Program > Irrigation, select Drain/MinT.
a. Define the Drainage percentage set points.
b. Define the MinT percentage set points.
5. Set ACTIVE/SOURCE to Yes.
6. Press Menu and confirm changes.
Example: When drainage is low, a user wants to decrease the Minimum Time. He sets 20% drainage to a MinT
of -25%. As drainage increases, the time between irrigation increases. In this scenario, if the MinT is set to 60
minutes, 40% drainage adjusts the time to 75 minutes.
9.2.2.4 VPD Influence on Target EC
You can adjust the EC based on the VPD Sum (air temperature and humidity). As the VPD rises or falls, the program
can increase or decrease the EC level according to your requirements.
1. In Installation > Analog Input:
a. define a sensor as EC
b. define an air temperature sensor
c. define a humidity sensor
Note: You can verify the EC status using Hot Key Screen, the temperature and humidity sensors status using
Hot Key Screen 6.
2. In Setup > VPD Sensor Setup, enable VPD Temperature and VPD Humidity sensors.
3. In Configuration > Dosing Channel Configuration set React to EC.
4. In Configuration > Dosing Configuration > EC Control, set EC Control to Yes.
5. In Program > Irrigation, select VPD/EC.
a. Define the VPD sum points.
DATE: 2 –Feb-12 TIME 12:52-08
IRRIGATION PROGRAM
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