pH- mode: When the pH concentration of the system is greater than or equal to the target
value + dead band, the system stas the peristaltic pump to add acid, and stops when it reaches or
falls below the target value.
Note: When both pH+ and pH-peristaltic pumps exist, the target value and dead band value
set by the system should avoid the back-and-foh oscillation of adding acid or alkali caused by
excessive addition of acid or alkali.
pH alarm value setting: set the low limit value and high limit value of the alarm signal sent by
the device.
pH value setting for the maximum number of liquid additions: before the pH of the nutrient
pool reaches or exceeds the target value, the maximum number of continuous operations for the
equipment to add liquids. After exceeding the set maximum number of times, a corresponding
alarm signal will be sent and the automatic liquid addition output will be stopped. This function is
to prevent out-of-control liquid addition caused by component failure or lack of stock solution;
after manually clicking the alarm prompt symbol on the screen, the system will resta the automat-
ic feilizer distribution operation, and the pH cycle number will be reset at the same time.
pH single dosing/mixing time setting: set the parameters of the dosing time and inteal time
(waiting time for acidic or alkaline liquid mixing) in one automatic dosing cycle of the equipment.
The mixing of the nutrient pool can be set independently whether it is mixed alone or the irriga-
tion pump and mixing when the feilizer is distributed. If the system is set with the function of the
irrigation pump and agitation, the irrigation pump will not peorm the agitation during the irriga-
tion on period. If it is independent mixing equipment is not aected. In addition, the user can set
the daily mixing time, and it is recommended to set the mixing during the irrigation OFF period.
The system can also be manually staed and stopped mixing.
MIX
Click [MIX] to enter the mixing settings:
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