The regulation of the injection flw is made through a PI control. This sort of
control compares the conductivity reading obtained with the set point, and tries
to reduce the difference by modifying the motor frequency.
The COMPACT V will wait for a new order to be given that the effects of the
previous order have been received by the conductivity detector. This waiting
time will depend on how long it takes for the injected liquid to come out of the
pump and reach the detector (delay time of the installation).
INJECTION CONTROL THROUGH CONDUCTIVITY
EC
SET POINT
EC
INJECTION
FLOW
COMPACT V
EC ELECTRODE
USER
INVERTER
COMPACT V
MF
EC
ELECTRODE
INJECTION
DELAY TIME
INVERTER
26
The regulation of the injection flw is made through a PI control. This sort of
control compares the conductivity reading obtained with the set point, and tries
to reduce the difference by modifying the motor frequency.
The COMPACT V will wait for a new order to be given that the effects of the
previous order have been received by the conductivity detector. This waiting
time will depend on how long it takes for the injected liquid to come out of the
pump and reach the detector (delay time of the installation).
INJECTION CONTROL THROUGH CONDUCTIVITY
EC
SET POINT
EC
INJECTION
FLOW
COMPACT V
EC ELECTRODE
USER
INVERTER
COMPACT V
MF
EC
ELECTRODE
INJECTION
DELAY TIME
INVERTER
26