Applications

Huber temperature control equipment is used for cyclical heating/cooling of petrol or diesel. Dynamic temperature control systems are particularly suitable for this test, as they can change temperature quickly and cover a wide temperature range.

The most important test for the cold temperature resistance of the diesel fuel is the filter performance defined by the CFPP or Cold Filter Plugging Point Test in accordance with EN 116. At temperatures below the freezing point, paraffin crystals can increase the flow resistance in the fuel filter, reducing or stopping the flow of fuel.

Components such as condensers, air lines and exhausts are frequently exposed to temperature fluctuations from -90  °C to +150  °C. The behaviour of the materials in the different components can be tested with cold bath circulation thermostats under a range of load conditions.

This application takes place in the SCR (selective catalytic reduction) catalytic converter. Using selective catalytic reduction, the emission of nitrogen oxide (NOx) is reduced by around 90% (in stationary operation). The liquid is a clear, synthesised 32.5 percent solution of high-purity urea in demineralised water.

We supply a range of different temperature control units for fogging tests (in accordance with EN 14288 and DIN 75201) for individual components in car interiors.
When they warm up, the volatile constituents escape from the component and condense in the (colder) environment. The KISS and CC series are used to heat the sample while the (e.g.) Minichiller is used to condense the vapours for analysis.

For transmission oil tests, you can use a Unistat with operational temperatures from -40  °C to +250  °C for temperature control. The transmission oil is pumped through a plate heat exchanger and flows through defined temperature profiles in various cycles.

The Vicat Test is used to make statements about the softening point of plastics. A rounded needle with a flat end is pressed onto the sample with a defined pressure and continuous increase in ambient temperature. Depending on the test conditions chosen, the constant temperature increase must be 50  °C or 120  °C per hour, until the softening temperature (VST) is reached, and the needle can penetrate 1 mm into the material.

Unistats are used for high-precision temperature control of calibration and vacuum chambers, in order to test and calibrate optical telescopes for space research. The parts and functional components are subjected to real conditions using high vacuum systems.

Temperature-dependent test processes for development, optimisation and quality assurance of additives and lubricants. Typical objectives include improving the cold temperature behaviour of viscosity as well as optimisation of resistance to ageing, corrosion protection, dispersing capacity and foaming behaviour.

Temperature control for pump test units for pumps for liquid and gaseous media. Exact temperature control delivers a high level of measurement accuracy and reproducibility for all parameters. Typical tests where the influence of temperature plays a major role include pressure tests, flow volume measurements, noise measurements, power consumption, leak tests and long-term durability tests.

Unistats combined with the Unical calibration bath are ideal for functional testing and calibration of sensors such as Pt100 sensors. The stainless-steel bath is set up like a calorimeter, and so achieves excellent temperature homogeneity.

The individual temperature cycles can be prescribed using a programmer or control via a digital interface.

Vehicle chassis components are exposed to temperature fluctuations, moisture and environmental influences every day. These environmental conditions are recreated in special test chambers using mist, dry phases, salt solutions and other corrosive solutions.
The cyclical temperature fluctuations are critical here. Dynamic temperature units from Huber are ideal here, to test precise temperature changes over several test phases.

In the automotive industry, all vehicle components must undergo a wide range of stress tests – often under extreme climatic conditions. The components must be able to withstand the stress of cyclical, changing temperatures for several weeks or months. Unistats are the perfect choice here. The units are designed for reliable, permanent operation, and facilitate extremely rapid temperature change.

One use of lithium ion batteries is in electric vehicles. These must pass a range of temperature tests before installation. For this, an ambient temperature from -20  °C to +40 °C is created in an environmental chamber. A Unistat, which can control temperature from -40 °C to +100 °C, is connected at a test point inside the environmental chamber using hoses.

If you need a temperature control solution specially adapted to your requirements, then we look forward to your enquiry. We would be delighted to offer personalised advice and give you suitable approaches to a solution, or show you reference projects we have already completed with comparable requirements.