408 L DOT DRACARYS Climatic Chamber for CAELIS

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Il Disgelo developed for CAELIS a 408 L DOT DRACARYS climatic chamber designed for thermal-climatic testing over a wide temperature range, from −70 °C to +180 °C, with relative humidity control from 20% to 98% RH.

The configuration uses an R449A/R472B cascade refrigeration system, enabling very low temperatures while maintaining stable and continuous operation throughout the test cycles.

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Developed Solution

The DRACARYS features a monoblock construction with an AISI 304 stainless-steel test chamber, 100 mm thermal insulation and an integrated air-treatment system.

The system is designed to provide:

• −70 °C to +180 °C temperature range;
• 20–98% RH relative humidity;
• heating rate up to 3.5 °C/min;
• cooling rate up to 3 °C/min;
• R449A/R472B cascade refrigeration;
• temperature uniformity ≤ 1.5 °C;
• front door with heated inspection window;
• two Ø100 mm technical feedthroughs;
• two adjustable internal shelves;
• test parameter recording;
• control and supervision through CliMaLogic®;
• Ethernet, VNC Viewer and Modbus TCP/IP.

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Main Technical Data

• usable volume: 408 L;
• internal dimensions: 600 × 800 × 850 mm;
• external dimensions: approx. 800 × 2009 × 2008 mm;
• temperature: −70/+180 °C;
• heating rate: 3.5 °C/min;
• cooling rate: 3 °C/min;
• relative humidity: 20–98% RH;
• temperature stability: ±0.5 °C;
• temperature uniformity: ≤1.5 °C;
• humidity stability: approx. ±3–5% RH;
• heat dissipation at +20 °C: 2 kW;
• refrigerants: R449A + R472B;
• refrigeration: cascade system;
• weight: approx. 700 kg;
• installed power: approx. 11.9 kW;
• power supply: 400 V ±10%, three-phase + neutral + earth;
• control: CliMaLogic®;
• programming: up to 50 programs with 20 steps each;
• data logging: CSV export via USB;
• connectivity: Ethernet, VNC Viewer and Modbus TCP/IP.

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Result

The solution provides CAELIS with a compact high-performance climatic chamber capable of managing extremely low temperatures, high temperatures and controlled humidity conditions within a single system.

The combination of cascade refrigeration, climatic control and CliMaLogic® enables repeatable and programmable test cycles across a wide thermal-climatic operating range.