Liquid Dosing Control Manual
9.17.150 rev A – September 2020
Page
18
of
34
3. Wait until liquid is present in the system
Visually check if liquid is present downstream of the Liquid Dosing Set
(observed in process, visibile in clear tubing if used, ……)
or
Wait 60 seconds
or
- Monitor the Actual Density reading (mini CORI – parameter 270) for readings as
expected what indicates liquid is detected
4. Stop filling
- Write value 0 to parameter 206 – Flow setpoint
(setpoint 0)
5. Completion of Filling step
- Check (partially) filled system for leaks
- Close any used drain points of bypass lines
Step
DDE ProPar Name
Data
Type
Execute Value
Remark
Preparation
1
130
104/8
Counter Mode
Uint8
write
0
Counter Mode disabled (batch
mode)
Start Filling
2
206
33/3
fSetpoint
Float write
<value>
Flow rate in Capacity Unit.
CORI-FLOW
3
270
116/15 Actual Density
Float read
Check if density is range of used
liquid
Stop Filling
4
206
33/3
fSetpoint
Float write
0.0
In Capacity Unit.
3.2 Flush the system
After the system is partially filled with liquid, the system can now be flushed to remove all air out of the
liquid flow control loop.
1. Operate the actuator at 100% setpoint
When a pump is used, run at full application flow (actuator 100%)
- Write value <___> to parameter 206 – Flow setpoint
(full application flow)
Choose 100% of the application flow as setpoint
When a valve is used, fully open the valve (actuator 100%)
- Write value 8 to parameter 12 – Control Mode
(Actuator 100%)
