Proportional Dosing
Proportional dosing made simple, Our plug-and-play system automatically adjusts chemical dosing based on flow – no PLC, no controller, fully reliable and easy to install

Simple, Accurate, and Reliable
How It Works?
We supply a straightforward and highly reliable proportional dosing solution that automatically adjusts chemical dosing based on water flow.
No controller or PLC required. The system relies on two main components:
SITRANS FM100 Flowmeter
Designed for wastewater and industrial applications, this flowmeter measures water flow and outputs a 4-20 mA signal proportional to the flow rate.
Blue White Dosing Pump
The pump receives the 4-20 mA signal from the flowmeter and automatically adjusts its dosing rate to match the flow.
As the flow increases, dosing increases; as flow decreases, dosing decreases – delivering true proportional control.
Plug-and-Play Proportional Dosing System
Easy Installation
- Pre-wired junction box connects the flowmeter directly to the pump.
- On site, only a single 240V power outlet is required.
- No PLC, no controller, no complicated programming.
- Both the flowmeter and pump are fully adjustable for exact dosing ratios.
Ideal Applications
- Wastewater treatment
- Chemical dosing
- Trade waste systems
- Cooling water systems
- General industrial processes
Why Choose This Solution?
This proportional dosing system is:
- Simple – minimal setup required
- Reliable – consistent performance for varying flow rates
- Cost effective – no extra controllers or PLCs needed
For more information on how this system can simplify and improve your chemical dosing operations, contact Chemtrol Australia today.
Documents
Everything for this system in one place: datasheets, manuals and set-up guides.