With volumetric dosing, dosing is based on the volume of the product. For example, dosing is often based on time or auger revolutions:
- Time: The dosing unit is set, to always dispense for a specific time. Then the dosing unit will dispense (approximately) the same amount of product during this dispensing time.
- Auger revolutions: The dosing unit is set, to always dispense a certain number of auger revolutions. The dosing unit will then dispense (approximately) the same amount of product in these set auger revolutions.
Volumetric dosing usually gives a little less accurate dispensing. In particular, this also strongly depends on the product that is dosed. Some examples of dosing units based on volumetric dosing:
Advantages of volumetric dosing:
- Relatively cheap system/ low investment
- Large dosing range possible
Disadvantages of volumetric dosing:
- Lower Accuracy
- Manual setting and calibration of the dosage
- No control over the process and dosage; visual check by operator