Hach-Lange RTC112 SD-Module - Manual (Page 23)

23
Parameterization and operation
MAX DECREASE CLOSED
L
This value defines the maximum decrease of the specific
polymer dosing rate FACTOR POLYMER DOSING [g/kg] if
CLOSED-LOOP EFFLUENT CONTROL is selected.
g/kg
MAX INCREASE CLOSED L
This value defines the maximum increase of the specific
polymer dosing rate FACTOR POLYMER DOSING [g/kg] if
CLOSED-LOOP EFFLUENT CONTROL is selected.
g/kg
SET-POINT TSS
Required setpoint of the TSS concentration in the thickened
sludge.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated.
g/L
P GAIN TSS
Proportional gain for the PID closed-loop controller for the TSS
concentration in the thickened sludge.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated.P GAIN TSS [L/g] is divided
by 100 before it is multiplied by the deviation of the actual TSS
concentration [g/L] from the required TSS setpoint [g/L] .
L/g
INTEGRAL TIME TSS
Integral time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated. INTEGRAL TIME TSS is set
to "0" to deactivate the integral part of the PI open-loop
controller.
min
DERIVATIVE TIME TSS
Derivative time for the PID closed-loop controller for the TSS
concentration in the thickened sludge.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated.
min
SET-POINT FILT
Required setpoint of the TSS concentration in the
centrate/filtrate.
Note: This parameter is only considered if CLOSED-LOOP
FILTRATE CONTROL is activated.
g/L
P GAIN FILT
Proportional gain for the PID closed-loop controller for the TSS
concentration in the centrate/filtrate.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated.
P GAIN FILT [L/g] is divided by 100 before it is multiplied by the
deviation of the actual TSS concentration from the required TSS
setpoint.
L/g
INTEGRAL TIME FILT
Integral time for the PID closed-loop controller for the TSS
concentration in the centrate/filtrate.
Note: This parameter is only considered if CLOSED-LOOP
EFFLUENT CONTROL is activated.
INTEGRAL TIME TSS is set to "0" to deactivate the integral part
of the PID open-loop controller.
min
4.4.1 RTC112 SD-Module open and closed-loop controller (Continued)
RTC MODULES / PROGNOSYS
RTC MODULES
RTC