dda 30 4 fcm c pv e c f 31u2u2fg 93244450
SKU: 85721791733

dda 30 4 fcm c pv e c f 31u2u2fg 93244450

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Description

dda 30 4 fcm c pv e c f 31u2u2fg 93244450The 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
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Exchange/Return Notes
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SKU: 85721791733

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4.4 ★★★★★
Based on 1790 reviews
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Alex
San Leandro, US
★★★★★ 5
A very important book
This is one of those books that I’ve known for a while that I needed to read, but I expected it to be dark and depressing. It was hard to prepare myself for it. After it had been on my Kindle a while, I decided that I just needed to take the plunge. I’m glad I did. It deals with a very unpleasant aspect of American history, as told by a formerly enslaved man in the 1800s. It’s not a pleasant topic and the author relates it in very neutral terms. He doesn’t involve his own emotions in what he experienced as a child and young man. He doesn’t have to. The evil that was inflicted on him speaks for itself. The book is extremely well written and it goes fast. It’s educational, but it doesn’t read like a school book. I know that this author has written other books and I do intend to read them at some point. Not right now though. It’s an intense read and I need some time to digest it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2019
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Amazon Customer
Carnegie, US
★★★★★ 5
But really it is a great, easy and fun read
Most people who pick this up are probably looking for history and possibly race issues. Which since it deals with slavery are there slightly. But really it is a great, easy and fun read. Many people act like they think they know what slavery was like. They act like slaves got whipped daily. This historical account actually verifies some things I thought might be actually going on. Really, just like today, the slave masters wanted to keep the slaves ignorant. Fred talks about how they tried to get the slaves to party and get drunk during holidays and has a solid working theory about the masters motivations for this. However, many times you could tell that slavery was really a system doomed to fail. Without incentivising the workers/slaves the output was minimal. Also, each slave master was different with some being bullies and some trying to be nice to get more work done. I added this book to get the free shipping with another order and as I white guy I thought reading this would be uncomfortable. But Whatever race you are I recommend this as a quick easy and fun read. Fred was an awesome dude who taught himself to read, had a wife became free and wrote a book, and even got in a comical fight with one of his slave masters. I wish more people today were like that guy. I think if he were alive today this guy would be a member of the Libertarian party. He had the type of soul that yearned for freedom.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2018
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William
West Palm Beach, US
★★★★★ 5
Tour De Force
Format: Paperback, Format: Paperback
The book ranks for me as one of the most significant, erudite, thorough and powerfully voiced books ever written on race in America. This a riveting, compelling and excruciating presentation, indictment, and prosecution of "White America" from its inception as a psychopathic and sociopathic construction, which persists into the present. "White" America exists juxtaposed to its violently parasitic extortion of Blackness. While the book makes the case for pathology and sociopathy, no such “racism” diagnosis currently exists in the DSM or WHO-ICD, but such a diagnosis is a logical extension of King’s argument. I bought this book, the workbook and I listened to the audio version - which is an especially rich experience for anyone who is remotely empathic! 350 references alone should intrigue anyone looking for a mother lode of information on the topic! We cannot jump straight to renewal in a United States of America without truth and reconciliation. For us to realize our best days ahead as a nation, the truth presented in The 400 Year Holocaust . . . is foundational reading.
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Reviewed in the United States on August 24, 2023
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DavidJ
Port Orchard, US
★★★★★ 5
A must read
Format: Kindle
Mr. King shakes up the thinking and challenges your mindset on American exceptionalism. The only thing exceptional about USA, is it's foundation is rooted in Whiteness. All the laws, policies, institutions, and wealth are designed to support and protect Whiteness. This book is a must read if you want to learn how the history of USA is shaped around Whiteness and white privilege. Mr. King does not hold back and he brings many receipts to support is position that Whiteness and white privilege psychopathic and sociopathic Black genocide. After reading this book, you will better understand why a certain political group wants to ban books. They are so afraid of confronting their truth and their history of anti-Blackness.
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Reviewed in the United States on August 6, 2024
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Verified Purchase
Desiree
Louisville, US
★★★★★ 5
A must read for all.
Format: Hardcover
A must have in your personal collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2025

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