Grundfos SMART Digital DDA-C Dosing Pump
Product Identification
| Qty. | Description |
|---|---|
| 1 | DDA 7.5-16 FCM-C-PV/T/C-F-31U2U2IG |
Product No.: 93243921
Note: Product picture may differ from actual product.
The Grundfos SMART Digital DDA-C is a compact positive-displacement diaphragm dosing pump. It features a variable-speed drive (stepper motor) and intelligent control electronics designed for minimum energy consumption.
Key Features and Operation
The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming, and suction, even for high-viscosity or degassing liquids. The duration of the discharge stroke varies depending on the set capacity, ensuring an optimal, uniform, and continuous discharge flow.
Installation is facilitated by a click-stop mounting plate, allowing placement in three different positions without additional accessories. The control cube can be easily rotated to the front, left, or right. Commissioning and operation are made intuitive through a click wheel and a multi-coloured backlit graphic plain-text LC display. Control elements are protected by a transparent cover.
The DDA-C includes built-in connectivity for easy setup and tracking via the Grundfos GO app, and seamless integration into Modbus RTU or TCP bus systems.
The sensor-based FlowControlMeasurement (FCM) system detects malfunctions such as air bubbles, line breaks, or overpressure directly in the dosing head, displaying them in plain text in the alarm menu. FCM measures the actual pressure and flow rate, eliminating the need for additional monitoring devices. It offers accuracy of ± 1.5% of the set value in a trouble-free process. The measured pressure and flow can be integrated into process control systems like SCADA.
The AutoFlowAdapt function automatically adjusts the pump speed to process conditions, maintaining the target flow even with fluctuating back pressure or air bubble formation (degassing drive strategy).
Dosing Head Components
- A durable and chemically resistant full PTFE diaphragm.
- Double ball valves for maximum dosing accuracy.
- A deaeration valve for easy start-up.
- A pressure sensor.
Operation Modes and Functions
- Manual dosing in ml/h, l/h, or gph.
- Pulse control in ml/pulse (incl. memory function).
- Analog control, 0/4-20 mA (scalable).
- Pulse-based batch function in ml, l, or gal.
- Timer-based batch function (dosing timer cycle or week).
- Fieldbus control (integrated Modbus RTU and TCP; Profibus DP, Profinet and Ethernet IP via CIM/CIU models).
- Cloud control and monitoring (Smart Digital Chempairing Suite; Grundfos Connect).
Additional Features
- The sensor-based FlowControlMeasurement (FCM) system detects malfunctions such as air bubbles, line breaks, or overpressure directly in the dosing head.
- Measurement of actual pressure and flow.
- AutoFlowAdapt automatically adjusts the pump speed to the process conditions (what you set is what you get).
- Degassing drive strategy in case of air bubbles detected in the dosing head and Auto Deaeration during pump standby avoids stand-still due to air-locking.
- ConditionCheck analyses the pump and the system where the pump is installed.
- Two SlowMode steps (anti-cavitation), 50% and 25% maximum flow, e.g., for high-viscosity or degassing liquids.
- Max. Capacity to limit the pump's capacity to a set maximum.
- Service information display to show when service is required and which wear-part order numbers are needed.
- Two-step key lock function to protect the pump against unauthorized access.
- Multi-parameter dashboard function to provide further information on up to 4 parameters.
- Counter for total dosed volume (resettable), operating hours, etc.
- Save, copy, and load customized settings, as well as reload factory settings.
