Continuous dosing – Batch dosing
5. In my process, can I switch between continuous dosing and batch dosing?
Yes, you can realise different types of dosing using the integrated PID controller and the batch controller in our
Coriolis and
ultrasonic flow instruments. This allows for continuous dosing, where the flow controller maintains the flow rate in the process at a set value. If the setpoint is changed, the system immediately adjusts. You can also track the output signal from another flow meter, allowing you to adjust, mix or blend other additives (in ppm).
As well as continuous dosing, you can also do batch dosing. With batch dosing, the PID controller regulates the fill times. For extremely short fill times, less than a couple of seconds, open/close valves are used.
6. Can you also fill jars?
Yes! Filling jars is quick and easy using the batch controller function on our
Coriolis and
ultrasonic flow meters. You only have to enter the batch value on the flow meter once, then for each batch you can simply re-start the counter. If desired, the batch controller can automatically adjust to the changing conditions.
7. What kinds of speeds can be achieved for my filling process?
For dosing applications, speeds of up to 50 msec can be achieved using special on/off valves. You often see these in production lines where jars or soft drink bottles on a conveyor belt have to be filled quickly with flavourings or other additives.
Read more about batch dosing in our blog:
fast batch dosing in filling lines.
8. What kinds of quantities can I dose?
For a process with continuous dosing, anywhere from a couple of mg/h (with the
u-FLOW series) up to around 600 kg/h (with the
CORI-FLOW series). With batch dosing, the batch size depends on the dosing time and maximum flow rate, so it varies from 50 μg to 166 g in around one second, up to many times that amount if the dosing times are longer.