8
Configuration
4.4 Control configuration
4.4.1 Activation of the control
ENT
ENT
ENT
pH
SP
07.00
CAL
CONTROL
ALARM
REGISTER
PH CONTROL
CONTROL
PI CONTROL
- pH control:
For enabling/disabling pH regulation. Dosing will be regulated automatically to adjust the pH reading to
the value entered as the pH setpoint.
- Out1:
Choose between the two 4-20 mA channels for analogue regulation or between the relay outputs for ON/
OFF regulation.
Out = 4-20 mA.
For in-line process control. This is more precise regulation, which requires a pump with a
4-20 mA analogue input, such as a Dositec mA, Dostec AC or Dostec with variable frequency drive.
Out = Relay.
For control in a recirculating tank. The regulating output establishes 5-minute cycles in
PH CONTROL
Out 2:
4-20 mA
2
Limit out 2:
080%
Pump 2:
1200 l/h
PH CONTROL
OU
T 1
OU
T 2
PH CONTROL
Control:
ON
Out 1:
4-20 mA
1
Limit out 1:
080%
Pump 1:
1590 l/
h
Hyst. ±: 0.99
- K (l/p):
This type of flow meter requires entry of the configuration value the manufacturer indicates in litres/pulse.
- Time Q=0:
In these flow meters, which calculate the flow rate from the time between two consecutive pulses, a wait
time from which the flow rate is considered to be zero needs to be defined.
- High Freq:
High frequency flow meter for Hall effect or electromagnetic insertion flow meters with a maximum of
300 Hz (300 pulses per second).
- K-factor (p/l):
This type of flow meter requires entry of the K-factor (pulses/litre), corresponding to the diameter where it
is installed. This value is supplied by the manufacturer.
