DYNEO DD-300F 230V Refrigerated and Heating Circulators
SKU: 22189750167

DYNEO DD-300F 230V Refrigerated and Heating Circulators

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Description

DYNEO DD-300F 230V Refrigerated and Heating CirculatorsOverview DYNEO refrigerated heating circulators are suitable for temperature applications with circulation to an external apparatus or immersing a device in the bath tank. Refrigeration combinations afford low temperature capabilities from 20 C to 50 C with an upper temperature limit of 200 C. The DYNEO DD circulator incorporates easy change over for control of fluid circulation internally or externally. Unit fittings M16x1 male threaded adapters

Overview

DYNEO™ refrigerated/heating circulators are suitable for temperature applications with circulation to an external apparatus or immersing a device in the bath tank. Refrigeration combinations afford low temperature capabilities from -20 °C to -50 °C with an upper temperature limit of 200 °C. The DYNEO™ DD circulator incorporates easy change-over for control of fluid circulation internally or externally. Unit fittings M16x1 male threaded adapters including a pair of 8 and 12 mm hose barbs. A color TFT display with central rotary knob controller includes a multi-lingual interface, integrated programmer, Pt100 port for external temperature control, USB connection for external PC control and data-logging with digital options including RS232 port or an analog module interface for voltage or current control. PID temperature control provides ±0.01 °C stability. Infinitely variable centrifugal pump capacity of 8-27 L/min with pressure to 1.5-10.2 psi. Stainless steel bath tanks with integrated drain port.
Class III (FL) according to DIN 12876-1.

Included with each unit: 2 each barbed fitting for tubing 8 and 12 mm inner dia. (pump connections M16x1 male)

Features:

  • Powerful cooling machines
  • Suitable for internal and external applications
  • Optimized cooling coil design saves space in the bath tank
  • Powerful and infinitely adjustable pressure pump
  • Flow rate 27 l/min, pressure 8.7 psi
  • Easy switching between internal and external circulation
  • Large color TFT display, multilingual interface
  • Central rotary knob (controller) simplifies operation
  • Integrated programmer for 8 x 60 program steps
  • Integrated external Pt100 connection
  • USB port
  • RS232 interface or analog interfaces (optional)
  • Bath cover included with delivery
  • Integrated drain makes emptying liquid easy and safe.
Key Attributes
Type Stirred / Circulating Baths
Incubation Yes
Refrigeration Yes
Temp Range (°C) A -25 to 200 (DD-300F model is -25)
Capacity (L) 4
Circulation 8-27 l/min
Brand Julabo
MaxFlow Rate (l/min) 27
Temp Stability (°C) ±0.01
Timer Yes
Alarms Yes
Digital or Mechanical Digital or analog option
Data connection USB and Optional analog or RS232 connection
Tank Material Stainless Steel
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) Varies by model
Width (in) Varies by model
Depth (in) Varies by model
Height (in)

Varies by model

 
Manufacturer Specifications

Model

DD-300F

Dimensions (W × L × H)

9.4 x 16.5 x 26 in.

Filling volume

3 ... 4 l

Weight

61.1 lbs

Pump connections

M16x1 male

Barbed fittings inner diameter

8/12 mm

Working temperature range

-25 ... +200 °C

Temperature stability

±0.01 °C

Setting the resolution of the temperature display

0.01 °C

Ambient temperature

+5.0 ... +40.0 °C

Data based on voltage version:

115V/60Hz (Nema N5-15 Plug)

Heating capacity

1 kW

Cooling capacity (Medium: Ethanol)

200°C = 0.3 kW / 20°C = 0.3 kW / 10°C = 0.3 kW / 0°C = 0.27 / -10°C = 0.19 / -20°C = 0.08 kW

Pump capacity flow rate

8 ... 27 l/min

Pump capacity flow pressure

1.5 ... 10.2 psi

Viscosity max.

50 cST

Refrigerant stage 1

R134a

Global Warming Potential for R134a

1430

Filling volume

100 g

Carbon dioxide equivalent

0.143 t

Bath tank

Stainless steel

Bath cover

integrated

Usable bath opening (W x L / D)

5.1 x 5.9 / 5.9 in.

Cooling of compressor

1-stage Air

Classification according to DIN12876-1

Classification III (FL)

Pump function

Pressure Pump

Pump type

Immersion Pump

External pt100 sensor connection

integrated

Integrated programmer

8x60 steps

Temperature control

PID2

Absolute temperature calibration

3 Point Calibration

Temperature displayTemperature display

3.5" TFT Display

Temperature settingTemperature setting

Shaft Encoder

Electronic Timer hr:min

99 ... 59
Shipping Notes
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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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22189750167

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john
West Palm Beach, US
★★★★★ 5
Wonderful work from a great historian
Format: Hardcover
James Holland is a very talented historian and his books on WWII are amazing.
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Reviewed in the United States on January 21, 2026
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Robert and Jessica
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How to capture the import of an entire war by writing on its end
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The authors seamlessly cover ed the macro and micro accounts of events and participants to capture the stunning and all important end of WWII. I was engaged and stimulated throughout my read of this book and highly recommend it for enthusiasts who are conversant with the war and want a better understanding of its close.
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Martin Southard
Phoenix, US
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World War II - The Final Months
Format: Hardcover
The book takes you through the final months of World War II, focusing on eight key moments when the fighting finally came to an end. It’s not just a dry rundown of facts or battle maps — the authors do a great job of bringing the people involved to life, from famous leaders to everyday soldiers and civilians caught in the chaos. What I really liked was how the story moves around the globe, covering Europe, the Pacific, and beyond. It keeps the narrative fresh and exciting, giving a real sense of how the war unfolded on many fronts at once. Sometimes I had to pay close attention to keep up with all the locations and characters, but that only added to the feeling of being caught up in a fast-moving, gripping story rather than a history lesson. What stood out most was how it made me feel the human side of history—the fear, the relief, and the confusion as the war finally ended. It’s full of details, but it never felt boring or too technical.
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Christian Schlect
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The Fix
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An insightful and interesting book on how our country's first legislators try to make sense of the new and fairly short U.S. Constitution, which, being drafted by humans, was bound to be imperfect. A lack of clarity on some point might be due to the changeable nature of words themselves or to confusion or obscurity of thought by the authors. And, who were the authors? The men in the room who came up with the product or the various state conventions that approved the final product? Professor Gienapp writes well and with a fine grasp of his subject. He uses concrete examples to illustrate his main points. For example, Congressional debates over the constitutionality of a proposed federal bank, the ratification of Jay's Treaty, and even whether the Bill of Rights was to be incorporated into or simply added to the original document. Most people think of U.S. constitutional history in terms of its drafting and ratification and/or its later judicial interpretation by the Supreme Court. Here, Professor Gienapp focuses on the initial work of interpretation by the first few sessions of Congress. This book is essential reading for those interested in the U.S. Constitution and the internal architecture of our government. I think those who spend countless hours viewing frenetic talking heads say this or that about the constitutionality of some issue or another (or the nomination of a justice to the High Court) should throw their television set out the window and, instead, settle into a corner chair and calmly read this and other such thoughtful books. This one should win prizes.
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Gadavis
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★★★★★ 5
Excellent Book
Format: Hardcover
Stanford University History Professor Gienapp has done an outstanding job of researching and writing this historical analysis of the interpretation of the American Constitution by America's first Congress. Professor Gienapp analyzes data primarily from Congress's problems interpreting the removable of executive officers, chartering a national bank and approval of the 1794 Treaty with Great Britain negotiated by Chief Justice John Jay, the "Jay Treaty." Gienapp shows in clear writing how Congress used records of the debates at the Constitutional Convention and State Ratification Conventions to resolve these constitutional issues. I highly recommend this book to anyone concerned with the interpretation of the American Constitution.
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Reviewed in the United States on July 18, 2020

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