Accessory for MCR temperature devices:
Low temperature options
- Combinable with electric and convection temperature devices
- Choice of solutions for different low temperature requirements: down to -40 °C, -90 °C, or -160 °C
- Toolmaster functionality for automatic system configuration and error-proofing
Cooling down samples for testing in extreme ambient conditions is not only essential in the aerospace industry, but in general when it comes to the preservation of desired material properties like elasticity and the fracture strength of construction materials in cold climate conditions. With Anton Paar’s low temperature options you can cool down your sample to -40 °C, -90 °C, or even to -160 °C with electrical and convection temperature devices. Automatic recognition and configuration by the MCR rheometer software RheoCompass with the Toolmaster functionality makes it straightforward to use the low temperature option and nearly impossible to choose incorrect settings.
Suitable for any low temperature application with cooling solutions down to -160 °C
Choose from three low temperature options with different temperature ranges for electrical (P-/H-ETD) and convection temperature devices (CTD). All three enable faster cooling rates (up to 70 °C/min), also when working above ambient temperatures (e.g. when cooling down to ambient temperature after the test). Should your required low temperature range increase in the future, you can easily switch to a more powerful system without changing the temperature control system itself. The systems are automatically recognized and configured by the MCR rheometer software RheoCompass employing the Toolmaster functionality, which makes it straightforward to use and nearly impossible to choose incorrect settings. The setup is completed within a few minutes and without special tools. There is no icing of the temperature device and measuring geometry, because dry air or inert gas is used for flushing.
Solution 1: Gas Chiller Unit 10 (GCU 10) for temperatures down to -40 °C
GCU 10 is designed for moderate temperatures down to a minimum of -40 °C without the use of liquid nitrogen, which is expensive and often usable only with restrictions, or even not allowed at all. A unique heat exchanger transfers the cold produced by a fluid circulator to the gas stream, which is used directly to control the oven temperature. Choose from different fluid circulators depending on the desired minimum measurement temperature and avoid unnecessary costs for an oversized setup. The setup is a straightforward, budget-friendly and energy-saving solution, especially when working with temperatures slightly below room temperature. As an option, a strong fluid circulator and an additional air dryer to avoid icing of the hoses are available. The fluid circulator can also be used for other applications in the lab. The setup is always ready to use, and is suitable for continuous long-term measurements.
Solution 2: Gas Chiller Unit 20 (GCU 20) for temperatures down to -90 °C
GCU 20 uses compressed gas (air or inert gas) to cool the sample down to -90 °C. Energy and gas consumption as well as heat emission are minimized by an automatic and continuous switching from the cooled gas to warm gas. This makes it possible to cover the full temperature range of the temperature device within one test. The chiller itself is freestanding, compact, easily moveable, and can be switched on and off via the rheometer software. The required input gas pressure is less than 7 bar which means that the chiller can be directly connected to most laboratory gas lines. Perform your measurements in less than 30 minutes without extended preparation effort and have a setup that is always ready to use without refilling the liquid nitrogen tanks. If your task is to perform continuous long-term measurements, experiments of more than 8 hours without icing and embrittling the hoses are possible. This option is also the perfect choice if the use of liquid nitrogen is prohibited by internal safety regulations.
Solution 3: Evaporation Unit 20 (EVU 20) for temperatures down to -160 °C
EVU 20 works with liquid nitrogen provided by a separate dewar with typically 50 L or 100 L volume and used directly to control the oven temperature. The liquid nitrogen consumption is optimized depending on the required temperature, which reduces operation costs. This consumption is further minimized by switching automatically to air or inert gas (e.g. nitrogen) above ambient temperature (5 L/h to 12 L/h, depending on the test definition). This makes it possible to cover the full temperature range of the respective temperature device within one test. Even at the lowest temperature of -160 °C, temperature control is absolutely accurate and stable. The system is designed for long-term measurements at all temperatures, even at -160 °C.
Low temperature options for all applications
Measurement and research on the low temperature behavior of materials are crucial for multiple applications, e.g. for the high-performance materials used in the aerospace industry due to the extremely low temperatures at high altitudes and in space, but also for the automotive and building industries in cold climate conditions. A typical material property that can become critical at low temperatures is reduced flexibility and elasticity, which can lead to fracture susceptibility and thus to failure of a component. The viscosity of a lubricant can also be significantly increased, which can lead to higher wear and abrasion.
Typical materials and applications:
- Polymer phase transitions, e.g. glass transition, crystallization, secondary transitions
- Dynamic Mechanical Analysis (DMA), e.g. on composites
- Physical aging of glass-forming materials (e.g. glycerol)
- Bonding properties of adhesives
- Elasticity of rubbers (e.g. of tires)
- Packaging material
- Lubricants and greases
- Asphalt and bitumen
|Temperature device |
|Gas Chiller Unit 10||Gas Chiller Unit 20||Evaporation Unit 20 |
|CTD 450 TDR |
|-40 °C to 450 °C||On request||-150 °C to 450 °C|
|CTD 600 MDR |
|-40 °C to 600 °C||-90 °C to 600 °C||-160 °C to 600 °C|
|CTD 1000 |
|On request||On request||-100 °C to 200 °C |
(1000 °C without EVU)
|CTD 200/GL |
|On request||On request||-50 °C to 150 °C |
(200 °C without EVU)
|P-/H-ETD 400 |
|n/a||-80 °C to 400 °C||-150 °C to 400 °C|
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