SKU: 90053255404

dda 30 4 fcm c pp v c f 32u2u2fg 93244440

$1405.01 $1561.12
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Description

dda 30 4 fcm c pp v c f 32u2u2fg 93244440The SMART Digital DDA C is a compact positive displacement diaphragm dosing pump with variable speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high viscosity or degassing liquids. Depending on the set capacity, the duration of the discharge stroke varies, ensuring an optimal, uniform

The SMART Digital DDA-C is a compact positive-displacement diaphragm dosing pump with variable-speed drive (stepper motor) and intelligent control electronics with minimum energy consumption. The SMART Digital Dosing series operates at full stroke length to ensure optimum accuracy, priming and suction, even for high-viscosity or degassing liquids. Depending on the set capacity, the duration of the discharge stroke varies, ensuring an optimal, uniform and continuous discharge flow. The click-stop mounting plate allows installation in three different positions without using any additional accessories. The control cube can be easily turned to the front, left or right position. The click wheel and the multi-coloured backlit graphic plain-text LC display enable intuitive commissioning and operation. The control elements are protected by a transparent cover. The DDA-C has built-in connectivity that allows easy setup and tracking via the Grundfos GO app as well as easy integration into a Modbus RTU or TCP bus system. The sensor-based FlowControlMeasurement (FCM) system detects malfunctions such as air bubbles, line breaks or overpressure directly in the dosing head and displays them in plain text in the alarm menu. FCM measures the actual pressure and flow rate and eliminates the need for additional monitoring and control devices (accuracy of ± 1.5 % of the set value in a trouble-free process). The measured pressure and flow are displayed and can be integrated into the process control system, e.g. SCADA. In addition, the AutoFlowAdapt function automatically adjusts the pump speed to the process conditions to maintain the target flow even with fluctuating back pressure or air bubble formation (degassing drive strategy). The dosing head includes the following parts:

  • 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, I/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).

Other 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 capacity of the pump to a set maximum.
  • Service information display to show when service and which wear-part order numbers are required.
  • Two-step key lock function to protect the pump against unauthorised 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 customised settings as well as reload factory settings.

Signal inputs/outputs:

  • Input for pulse, analog 0/4-20mA, external stop.
  • Input for low-level and empty-tank signal.
  • Two potential-free output relays for max. 30 V AC/DC (configurable, e.g. alarm, stroke signal, pump dosing, timer etc.)
  • Output analog 0/4-20mA.
  • 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).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 90053255404

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4.1 ★★★★★
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TN
Belleville, US
★★★★★ 5
One of the best middle grade books of 2018!
Format: Hardcover
FRONT DESK is loosely based on author Kelly Yang’s life experience, as explained in an author’s note at the end of the book. Her straightforward writing makes this book perfect for younger middle grade readers (Mia is 10). Yet Yang tackles difficult issues like interpersonal, systemic, and institutional racism. She writes so simply and honestly, it’s hard to imagine a young person walking away without understanding these powerful messages. FRONT DESK is infused with dark truths about America and still manages to be light, heartwarming, and fast-paced. Lovable Mia solves problems by using her writing skills—not her math skills as her mother wishes she would. She beats the system by using her words, often disguised as the words of adults, to point out injustices and find pathways to a better life for her family and friends. Mia’s and her parents’ find—actually, create—community at the Calavista Motel. They fight back when multiple systems conspire to make life impossible for Hank, an African American man who lives at the hotel. They devise a system to hide desperate Chinese immigrants in vacant rooms. This is deep social justice work, accompanied by anecdotes of Mia’s follies at the front desk and problems at school. The book ends on a hopeful note, with the Tangs’ community surrounding them to help them take the first step off the poverty rollercoaster. The solution they come up with has a chance at helping others get off, too. FRONT DESK shifts the narrative about the American experience, acknowledging that there are many American experiences. The pathway to the American Dream can take many forms, and Yang has described one that is heart wrenching, hopeful, and a lot of fun along the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2018
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qocn19
Fort Morgan, US
★★★★★ 5
This is my middle school daughter’s favorite book.
Format: Paperback
My daughter usually reads only graphic novels, but she started reading chapter books after this one. She loved it so much that she’s read it several times, and since it’s a series, we bought and read all the other books too. It’s a great book for middle school girls—easy to get into and very engaging.
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Reviewed in the United States on September 1, 2025
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Christopher Robinson
Bozeman, US
★★★★★ 5
Summer Reading
Format: Paperback
This is a book for middle school summer reading
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
S
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SweetRead
Bozeman, US
★★★★★ 5
Perfect Combo of Fun and Serious
Format: Kindle
This story was the perfect combination of humor and seriousness. I, even as an adult, remember some of those same feelings and the drama of junior high years. It made me take a look even at myself and ask what I look for in people? It made me ask myself if I need to reach out and apologize. But it also ales me want to do better. Step away from social media. When on social media, make sure I think about my comments and how they can be construed or make people feel. Help my nieces and nephews compliment actions and other such areas and not looks. To look deeper into a person. Well written. Lots of fun. And just what I needed in a book. Chad Morris and Shelly Brown do it again.
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Reviewed in the United States on March 3, 2024
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Srimannarayana
Lexington, US
★★★★★ 5
Excellent
Format: Hardcover
I really like this book has a good story
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2025

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