DYNEO DD-450F Refrigerated/heating circulator with natural refrigerant

DYNEO DD-450F refrigerated circulating thermostat with natural refrigerant is built for a broad working temperature range in both internal and external laboratory applications. Its stainless-steel bath vessel features an integrated bath cover and a medium opening of 13 × 15 cm at 15 cm depth, while the optimised cooling-coil design frees additional space inside the bath. The continuously adjustable immersion pressure pump provides 27 l/min flow at 0,7 bar and supports straightforward changeover between internal and external circulation. A large multilingual 3,5 inch colour TFT display together with the central rotary controller ensures intuitive daily operation; an integrated programmer, USB interface and external Pt100 connection are standard, with optional RS232 or analogue interfaces. Safe emptying is aided by an integrated drain tap, the ventilation grille is removable, and the bath cover is part of the supply. Powerful refrigeration keeps control precise and reliable at ambient temperatures up to +40 °C. Performance figures follow DIN 12876 (ethanol up to 20 °C, thermal oil above 20 °C, referenced to 20 °C ambient). Two hose olives each for 8 mm and 12 mm i.d. tubing fit the M16×1 pump connections. The instrument from manufacturer Julabo comes as 1 pc and weighs 25,5 kg net.

This article is part of Test inks & surface tension, in Test kits & water analysis.

Key features

• Pack size: 1 pc
• Refrigerant type: Natural
• Bath vessel: Stainless steel with integrated cover
• Bath opening (W × D / depth): 13 × 15 / 15 cm
• Pump capacity: 27 l/min at 0,7 bar
• Display: 3,5 inch colour TFT, multilingual