Netafim NMC-JUNIOR PRO - 9.4 Dosing

NMC-Junior Pro Installation Manual
Page 61
PROGRAM MENU
9.4 Dosing
NMC-Junior Pro includes 10 predefined dosing programs. Each program consists of injection methods, quantities and
EC/pH target values. Each channel is completely independent and can be set to give a different amount.
Overlapping between the various channels is possible.
• Dosing Program
• Dosing Injection Methods
9.4.1 Dosing Program
• Program: Select a program by entering the program number, and confirm by pressing ENTER.
INJECTION PER DOSING CHANNEL
• Dosing channel number: 1 to 8.
• Reaction: A read only line indicating the purpose of the channel;

EC: the channel is used to increase measured EC, meaning it will be opened more when the measured
EC is lower than the set EC.

pH: the channel is used to decrease measured pH, meaning it will be opened more when the measured
pH is higher than the set pH.

Passive: the channel does not respond to changes in measured EC/pH, meaning it will be opened as
set in the Dosing program regardless of the EC/pH values.

Alkali: the channel is used to increase measured pH, meaning it will be opened more when the
measured pH is lower than the set pH.
• Quantity / Time: Set the Quantity / Time to be injected for each dosing channel. The injection method
(proportional, quantity, time, etc.) can be set separately for each use of the channel (EC, pH, Passive).
• Target EC: Set the required EC target value, only visible if EC control or EC alarms are active, see table 1.3.
• Target pH: Set the required pH target value, only visible if pH control or pH alarms are active, see table 1.3.
• Passive Dosing Method: Set the required injection method of the Passive dosing channels (see
Dosing
injection method).
• EC Dosing Method: Set the required injection method of the EC dosing channels (see Dosing injection
method).
• pH Dosing Method: Set the required injection method of the Acid and Alkali dosing channels (see Dosing
injection method).
9.4.2 Dosing Injection Methods
1. P.Qty (1/1000): Proportional quantity. Each dosing channel can be set to give a different amount. The set amount
is 1 part (Liter or Gallon) fertilizer/Acid per 1000 parts (m
3
/h or 1000 Gallons) of water.
For example:
DOSING PROGRAM
Program: 1
INJECTION PER DOSING CHANNEL
1
2
3
4
——
EC
EC
ACID
PASSIV
——
3.00
5.00
6.00
5.00
——
Target EC
2.00
Target PH
6.00
Passive Dosing Method
QTY
EC Dosing Method
P.QTY
PH Dosing Method
P.QTY
Screen 2 of 3 – In order to view the