Dositec DOSMART® AC 40 Advanced Control Stepper Motor Chemical Dosing Pump
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Product Overview
The Dositec DOSMART® AC 40 is an advanced control stepper motor chemical dosing pump designed for highly accurate liquid chemical injection in water treatment, agriculture, fertigation and industrial dosing applications. With advanced stepper motor technology, the pump delivers smooth, stable and precise dosing performance across a wide operating range.
With a maximum dosing capacity of 40 L/h and pressure capability up to 3 bar, the DOSMART AC 40 is ideal for medium-flow chemical dosing systems requiring consistent injection accuracy and reliable automated control. Its stepper motor design allows precise flow regulation with excellent dosing repeatability and uniform chemical delivery.
The AC advanced control version supports multiple dosing modes including manual dosing, proportional dosing, analogue 4–20 mA control, batch dosing and ModBUS communication. This allows the pump to integrate easily with flow meters, sensors, irrigation controllers, SCADA systems and automated industrial control systems.
The DOSMART AC range is designed for robust operation in demanding environments and features IP65 protection, high chemical resistance and advanced dosing functions such as slow suction and slow discharge modes for viscous liquids and low-pulsation operation. Remote monitoring and control via WEB and APP connectivity are also supported.
Compact, durable and easy to operate, the DOSMART AC 40 is a practical solution for accurate automated chemical injection across agricultural, industrial and water treatment systems.
Key Features
- Maximum flow rate: 40 L/h
- Maximum pressure: 3 bar
- Advanced stepper motor technology for accurate dosing
- Turndown ratio up to 1:3000
- Manual, proportional, analogue and batch dosing modes
- ModBUS communication capability
- 4–20 mA analogue input
- Pulse-based proportional dosing
- Remote start and level sensor input
- Slow suction and slow discharge dosing modes
- IP65 protection rating
- WEB and APP remote monitoring capability
- Suitable for chemical dosing, fertigation and industrial applications
Common Applications
- Fertigation systems
- Water treatment chemical dosing
- Acid and sanitiser injection
- Industrial chemical dosing
- Agriculture and irrigation
- Greenhouses and nurseries
- Automated chemical control systems
The Dositec DOSMART® AC 40 is an excellent choice for users requiring precise, automated and reliable medium-flow chemical dosing with advanced control functionality.
Applications
Frequently Asked Questions
What is the DOSmart® AC used for?
The DOSmart® AC is a stepper motor-driven dosing pump designed for accurate and efficient dosing of liquid chemicals. It is suitable for water treatment, chemical processing, food processing, agriculture and general industrial dosing applications.
What flow and pressure range is available?
The DOSmart® range covers dosing requirements from 1.5 to 60 L/h, with pressure ratings up to 16 bar, depending on the selected model.
What makes the DOSmart® AC different from the BC version?
The DOSmart® AC has advanced control and monitoring features, including 0/4–20mA analogue input, level pre-alarm input, leak detector input, flow sensor input, pressure sensor input, RS-485 ModBus, 4–20mA output, pulse output and alarm relay outputs.
What operating modes does the DOSmart® AC have?
The DOSmart® AC supports multiple operating modes including manual, flow proportional, analogue 0/4–20mA, pulse proportional, batch dosing, timed dosing and ModBus RTU control.
Can the DOSmart® AC dose proportionally from a water meter?
Yes. The DOSmart® AC can dose proportionally from a pulse signal supplied by a water meter or flowmeter. It supports X:Y pulse mode for low-frequency signals and %/ppm flowmeter mode for higher-frequency flowmeters.
Can the DOSmart® AC be controlled by a 4–20mA signal?
Yes. In analogue mode, the pump doses proportionally to a 0/4–20mA input signal. This allows the dosing rate to be controlled by external instruments such as controllers, sensors or PLC systems.
Does the DOSmart® AC support ModBus?
Yes. The DOSmart® AC can be controlled via RS-485 ModBus RTU. The manual lists RS485 half-duplex communication with A, B and GND connections, 9600 baud rate, 8 data bits, no parity and 1 stop bit.
What materials are available for the pump head?
The DOSmart® range can be supplied with PP, PVDF or stainless steel 316 pump head materials. Selecting the correct head, seal and ball material is important depending on the chemical being dosed.
Does the DOSmart® AC have alarms?
Yes. The DOSmart® AC includes configurable alarms for level, flow fault, diaphragm leakage and overpressure. Alarm relay outputs can also be configured depending on the installation requirements.
How should the DOSmart® AC be installed?
The pump should be installed on a rigid horizontal surface in a place protected from water, away from heat sources and with adequate air ventilation. A suction filter of 150 micron is recommended, and a pressure relief valve should be installed close to the pump to protect the system from overpressure.
Downloads
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Specifications
Maintenance Kits & Spare Parts
Compatible spare parts for this pump
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What Our Customers Say
"Incredible dosing and consistent results. Perfect for our irrigation needs."
Agriculture
"Simple to operate and built to last – exactly what we needed for fertigation."
Horticulture
"The team knows their stuff. Helped us choose the right dosing solution."
Water Treatment
Dositec DOSMART® AC 40 Advanced Control Stepper Motor Chemical Dosing Pump
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Applications