high precision thermoregulation · components of air conditioning systems are exposed to frequent...

HigH Precision

THermoregulaTion

Rapid Thermal Cycling Tests

Test Benches

Testing / Climatic Chambers

in test bench design and in the automotive industry

high precision thermoregulation

2 3 www.huber-online.com

� charpy impact TestDeformability of components of air conditioning units

� Battery TestFunctional testing for lithium-ion batteries in electric cars

� Transmission Fluid TestConstant heating and cooling for durability testing

� corrosion cycle TestingCorrosion test with cyclic temperature variations, humidity and salt spray

� stress Tests on Test BenchesContinuous load of vehicle components for several weeks under extreme influence of temperature

� Fogging TestMeasurement of volatile substances in materials used in passenger compartments

� cold Filter Plugging PointDetermination of the cold filter plugging point of diesel fuels

� Thermoregulation of motor FuelsDurability tests of fuel tanks

� adBlue® ThermoregulationExhaust gas post-treatment of diesel fuels in cars

� Vicat TestTesting to find the softening point of plastics

� calibrationCalibration tasks in the field of vehicle sensor systems

Full service for your

application


Areas of Applications � Test bench design

� Material testing

� Quality control

� Stress test

� Environmental simulation

� Battery tests

� Solar technologies

� Gear / Bearing testing

� Research

� Testing / Climatic Chambers

� Calibration

� and much more

The right solution for every

area of applicationApplication possibilities

� rapid Thermal cycling Tests

Small tempering baths can be used for rapid thermal

cycling tests. Temperature tests and preliminary ins-

pections of material samples can be quickly and ea-

sily performed in the bath opening. The use of more

powerful circulation thermostats is recommended for

temperature tests, which require a wide temperature

range from -125 °C to +425 °C.

The temperature control units can simulate various

temperature conditions depending on the type of

product. The automotive sector often uses tempera-

tures from -35 °C to +85 °C. Our temperature control

units also achieve significantly higher or lower tempe-

ratures as required

� Flexible alternative to a material Testing chamber

Our temperature control units can be used instead

of a climatic chamber. They can be flexibly used for

various tests and are often cheaper than climatic

chambers. Another advantage is the high heating and

cooling speed of Unistats. They transfer high heating

and cooling capacities quickly and precisely, which is a

significant advantage in many functional and material

tests.

� Test Benches

Huber provides various individually designed tempe-

rature control units in any size for temperature testing

of engines, transmissions and other components. The

temperature control systems can be easily integrated

into existing test benches and ensure reproducible

temperatures.

Huber can design and supply external heat exchanger

solutions in separate or integrated version if your test

requirements require separate primary and secondary

circuits due to material incompatibilities, pressure, vis-

cosity, flow rates etc.

� Direct operation with Water glycol

Many of our Unistats can use water-glycol as tempe-

rature control medium:

• From -35 °C to +95 °C:

Petite Fleur, Grande Fleur

• From -30 °C to +95 °C:

Unistat Tango w/wl, 405/w, 410/w, 425/w, 430/w,

510/w, 520/w, 527w, 530w, 610/w, 615, 620/w,

625/w, 630/w, 635/w, 640/w

We can also help you on other applications, such as

the use of non-electroconductive temperature control

media.

There are numerous applications for Huber temperature control units in the automotive industry. Typical appli-

cations include environmental simulations, material testing and temperature-dependent stress and load tests for

materials, gears, bearings and engine components. Other common areas of application are research tasks, test

series and quality inspections of batteries, rechargeable batteries and electronic components. When it comes to

the design, construction and operation of test rigs in the automotive industry, researchers and engineers around

the world rely on Huber temperature control unts. Many international projects demonstrate the expertise of

Huber Kältemaschinenbau in the engineering and construction of test benches and machines for temperature

testing.


Huber temperature control units are used for the cyc-

lic heating / cooling of petrol or diesel. Cyclic heating

and cooling of fuels tests the life of fuel tank sur-

faces. Particularly dynamic temperature control sys-

tems with rapid temperature change capabilities and

a wide temperature range are suitable for such tests.

The test container is made of a stainless steel plate

and has a capacity of ca. 30 to 50 liters. A double-

walled tank can control the temperature in a range

from +15 °C to +60 °C with a deviation of +/-3 °C,

starting at an ambient temperature of +20 °C.

Transmission fluid tests with operating temperatures

from -40 °C to +250 °C may be performed with a Unis-

tat model. The gear oil is pumped through a plate heat

exchanger and passes through different cycles at extre-

me temperatures.

� application:

The Unistat series suitable for this application includes:

• Unistat 410w

• Unistat 425w

� application:

The Unistat series suitable for

this application includes:

• Unistat 410w

• Unistat 425w

Thermoregulation of motor Fuels

Transmission Fluid Test

Components of air conditioning systems are exposed

to frequent temperature variations. Special test ben-

ches for air-conditioning test components of heating

and air conditioning units, condensers, air ducts and

the efflux at varying temperatures between -90 °C

and +150 °C.

The Charpy Impact Test tests the deformation capa-

city of a material under various load conditions as

constantly changing temperatures make components

fragile and brittle. Materials often withstand loads at

room temperature but fail at low temperatures. Refri-

geration batch circulators are suitable for testing the

material behavior of various components.

The Vicat test determines characteristics about the

softening point of plastics. A circular needle with a

flat end is pressed onto the surface of the sample at a

defined compressive stress and at a constant increase

in the ambient temperature. Depending on the test

condition selected, the temperature must be cons-

tantly increased by 50 °C or 120 °C per hour until the

Vicat Softening Temperature (VST) is reached and the

needle is penetrated 1 mm into the material.

� application:

Huber provides various circulation thermostats for this

type of temperature control applications according to

the temperature range required, such as:

• Ministat 240

• CC-515

• CC-905

� application:

Huber’s recommenda-

tions for this type of

application include:

• CC-K15

• MPC-K15

• Petite Fleur

Vicat Test

ImpAcT TesT

charpy impact Test


Diesel fuel may cause an engine not to start in colder temperatu-

res. The most important test for the low-temperature resistance of

diesel fuel according to EN 590 is the filterability according to CFPP,

the Cold Filter Plugging Point test according to EN 116. Depending

on the crude oil composition, paraffin crystals may be released at

temperatures below the freezing point, which would increase the

flow resistance in the fuel filter to a point that sufficient fuel delive-

ry becomes impossible. Adequate additives can modify the crystal

formation so that the crystals become smaller and can pass the fuel

filter.

� application:

The Unistat series suitable for

this application and with a wor-

king temperature range of up

to -75 °C / -85 °C includes:

• Unistat 705

• Unistat 815

cold FIlTer pluggIng poInT

cold Filter Plugging Point

f

f

Fogging Test system

The fogging tester by EKO INSTRUMENTS uses the

immersion circulator thermostat CC-E to maintain the

temperature of the oil bath at +100 °C. The fogging

tester’s slots can simultaneously hold eight samples.

Placing the thermostat in the middle of the bath en-

sures a uniform temperature is maintainded for all

samples.

For more information: www.eko-eu.com

eko InsTrumenTs co. ltd.

Fogging Tester

We offer various temperature control units for the

fogging test (according to EN 14288 and DIN 75201)

of individual car interior components in the labora-

tory. Particularly the CC/MPC thermostats and Mini-

chillers are suitable for testing the degasification of

individual material components, which condense in

the component’s environment.

A sample is heated with our temperature control unit

to measure the condensable components of a com-

ponent. The volatiles escape from the component and

condense in the (colder) environment of the compo-

nent. The MPC and CC series is used to heat the bath

and a Minichiller ensures proper cooling.

� application:

A combination of immersion circulator thermostats

and circulating coolers is suitable for this application,

such as:

• MPC-E and CC-E

• Minichiller

air- or water cooled

- 75 °c

air- or water cooled

- 85 °c


AdBlue® is the brand name of a urea-based liquid

that is used in the exhaust gas post-treatment of

auto mobile diesel engines to reduce nitrogen oxi-

des. The application occurs in the SCR catalytic

converter (Selective Catalytic Reduction, SCR). The

se lective catalytic reduction reduces the emission

of nitrogen oxides (NOx) by approximately 90% (in

stationary operation). This liquid is a water-clear,

synthetically manufactured 32.5 per-

cent ultrapure urea solution in demine-

ralized water.

The AdBlue® trademark is a trademark of the German Association of the Au-tomotive Industry (VDA) and is based on uniform ISO and DIN quality stan-dards around the world.

Car body components are exposed daily to temperature

variations, humidity and environmental influences.

These environmental conditions are simulated in spe-

cial test chambers with fog, dry periods, brines and

other corrosive solutions.

� application:

Huber provides compact refrigeration circulators for

this type of temperature control application with spe-

cial baths that have been specially configured for the-

se requirements.

• Ministat 240

• CC-415

• Custom stainless steel tanks

Cyclic temperature variations play an important role.

Huber dynamic temperature control units are suitable

for testing precise temperature variations across seve-

ral test phases. The surface quality of wheels, brakes

and other body components is tested.

� application:

Suitable devices for this application include:

• Unistat 410

• Unistat 510w

adBlue® Thermoregulation

corrosion cycle Testing

Test Bench stress Test

Battery Test

All vehicle components must be subjected to various

stress tests – under extreme climatic conditions, if ne-

cessary – to meet the quality requirements of car ma-

nufacturers and their customers. From safety belts to

power window systems and brakes, all components

are subjected to an endurance test at ambient and

extreme temperatures. Any manual and electronic

components must have functionality guaranteed both

at -40 °C and +90 °C. Components must withstand

these loads with cyclically changing temperatures for

several weeks or months.

� recommendation:

Huber recommends the use of special solutions,

which are suitable for rapid temperature changes and

highly cyclical temperature applications. We would be

happy to advise you.

Lithium-ion batteries are also used in electric cars.

These must pass various temperature tests prior to

installation. An ambient temperature from -20 °C to

+40 °C is generated in a climatic chamber for this pur-

pose. A Unistat is connected to a test point within the

climatic chamber with hoses, which can now control

the temperature from -40 °C to +100 °C.

� application:

Suitable devices for this application include:

• Unistat 510w

• Unistat 530w

� consultation

Please contact us if you need a emperature control

solution that is specifically adapted to your needs. We

are happy to advise you personally and will provide

you with appropriate solutions or show you already

realized reference projects with similar requirements.

Example of use: External heat exchanger

special solution

12 www.huber-online.com

Visit us at the

high precision thermoregulation

Peter Huber Kältemaschinenbau GmbH Werner-von-Siemens-Straße 1 D-77656 Offenburg / Germany

Phone +49 (0) 781 96 03-0 • Fax +49 (0) 781 5 72 [email protected] • www.huber-online.com

Benefits of Huber temperature control:• High accuracy and best reproducibility

• Flexibility and security of investment

• Direct operation with water glycol for selected Unistats

• Optional solutions for flow rate control

• Temperature control solution including external heat exchanger

• Special designs according to customer requirements

any questions?Do you have any questions or a specific project? Call us at: +49 781 / 9603-123. We would be happy to advise you.

from 16 - 18 June 2015in stuttgart, booth: 1046

high precision thermoregulation · components of air conditioning systems are exposed to frequent...

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