Netafim nmc-pro Installation Guide

NMC-PRO Installation Manual
62Page
PROGRAM MENU
5.2.2.3 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.
5.2.2.4 Drainage EC Level Influence on Target EC
If you have installed an EC sensor in the drainage, you can adjust the EC level based on the drainage EC level. This
can be used, for example, to lower the EC level if EC in the drainage are above specifications.
To set the EC Drainage Influence on the EC:
1. In Installation > Analog Input:
a. Define a sensor as EC
b. Define a sensor as EC drain
2. 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.
3. In Configuration > Valve Configuration define which valve number corresponds to which drainage meter.
4. In Configuration > Dosing Channel Configuration set React to EC.
5. In Configuration > Dosing Configuration > EC Control to Yes.
6. In Configuration > Drainage Configuration, define the drainage meter’s Ratio Liter/Pulse.
7. In Program > Irrigation, select EC Drain/EC.
DATE: 2 –Feb-12 TIME 12:52-08
IRRIGATION PROGRAM
Program:
1
Priority: --
Const. 0%
INFLUENCE
TABLE
ACTIVE/SOURCE
Radia./EC
DRAIN%
MinT
Drain/RadS
(%)
(%)
Drain/MinT
20
-25
EC Drain/EC
40
25
VPD/EC
Temp/EC

Netafim nmc-pro Specifications

General

Brand	Netafim
Model	nmc-pro
Category	Controller
Language	English