Liquid baths with maximum temperature uniformity
Our Kambic calibration baths are ideal for calibrating temperature sensors, temperature transmitters or even complete temperature systems in calibration laboratories. They enable the simultaneous calibration of several systems and offer the advantage that sensors of all shapes and sizes can be calibrated. The exceptional temperature stability and precise temperature distribution over the entire bath volume ensures that sensors and references are always exposed to a uniform temperature.
Homogeneity and stability in the mK range at "real" -90 °C to +250 °C
Our Kambic liquid baths are characterized by highly stable temperature control and a unique temperature uniformity of better than ±0.007 °C over the entire bath volume. Depending on the temperature range, Kambic calibration baths are equipped with different cooling systems: from cooling with tap water to integrated refrigeration compressors and multi-stage cascade compressors for models with extremely low temperatures. The ultra-stable laboratory calibration baths are also available as deep well as micro calibration baths.
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Unique Vertical Flow Design (VFD)
The precision of the calibration baths is achieved by a 2-chamber system with superimposed vertical flow and perfected high-performance microprocessor control[/p>.
The unique "Vertical Flow Design (VFD)" guarantees maximum stability and uniformity.
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Customized solutions
In order to offer the ideal solution for your calibration application, we realize customized calibration baths. Describe your requirements to us and we will realize your individual calibration solution.
Customized calibration bath OB-85/2 LT
Highly functional basic equipment
"Real" -90 °C to +250 °C
Our calibration baths offer you the best possible metrological performance. The uniformity and stability are unsurpassed.
Programmable controller
Behind the high-quality touch displays is a controller that can be configured directly on the device. Control temperature cycles precisely and define automatic sequences.
Ethernet and USB connection
The basic equipment with Ethernet and USB connection gives you flexibility when communicating with third-party programs, evaluating data and updating the calibration baths.
Fast heating and cooling rates
Ensure efficiency in calibration through rapid temperature changes - without compromising on precision.
Free software
The comprehensive software for data evaluation is provided free of charge with our calibration baths.
Proven quality
Leading laboratories recommend our calibration baths when precision and reliability are important. Save costs in the long term by using our low-maintenance and extremely robust devices.
Portable calibration baths
With their small dimensions, the portable micro calibration baths are suitable for applications that have to be carried out at different locations.
The portable mini calibration baths nevertheless offer exceptional performance and fast heating and cooling rates.
- Flexible use
- Usable bath depth of 210 mm
- Homogeneity and stability in the mK range
- Cooling system with compressor technology
- Perfect heat transfer
Ultra-stable calibration baths for reference resistors
The ultra-stable calibration baths for reference resistors are characterized by exceptional operating characteristics. They belong to the high-performance class of calibrators at the cutting edge of technology.
Calibration bath for reference resistors
Features a hinged, transparent cover and several access openings.
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Temperature range |
+5 to +60 °C |
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Temperature stability (°C) |
±0.003 at +23 °C |
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Temperature uniformity (°C) |
< ± 0.007 at +23 °C |
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Bath volume |
60, 100 and 110 liters |
19-inch calibration bath for reference resistors
Our compact 19-inch calibration bath, the size of a server rack, offers active Peltier cooling for ultra-stable temperatures 24 hours a day, 365 days a year. Features cable access via a two-piece top cover.
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Temperature range |
+ 15 to + 35 °C |
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Temperature stability |
± 0.002 at 23 °C |
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Temperature uniformity |
± 0.006 at 23 °C |
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Bath volume |
10 liters |
What is a calibration bath?
A calibration bath is a machine equipped with a container (bath) that allows a filled liquid to be regulated to a specified temperature with high precision using heating, cooling and stirring systems. Temperature sensors, temperature probes or temperature transmitters are then calibrated in this temperature control liquid, i.e. compared with a temperature standard.
The preset temperature should be very close to the actual temperature of the bath liquid; even more important, however, is the stability of the temperature over time and the homogeneity of the temperature over the entire bath volume.
Compared to calibration methods using air, the calibration bath has the advantage that the heat transfer through the liquid is faster. In addition, more precise temperature control is possible. Stabilities and homogeneities of up to ±0.005 K are possible in calibration baths in temperature ranges from approx. -100 °C to +300 °C. This makes them the ideal source for calibrating high-precision temperature sensors, especially if they have special shapes and therefore cannot be calibrated in block calibrators.
Common sizes for calibration baths are in the volume range between 1 and 60 liters. Special, temperature-stable silicone oils are used as bath fluids, particularly in the high temperature range. High-purity alcohol is used in the lower temperature ranges.
Selection criteria for a temperature calibrator
If you need to calibrate industrial temperature sensors such as RTDs, thermistors, bimetal thermometers or glass thermometers, you need a reliable temperature source to verify their accuracy. A liquid-based calibration bath offers an excellent combination of stability, uniformity and value for money for the most demanding calibration applications.
Typical calibrators offer stability of approximately ±0.5 °C over a temperature range of -25 to 650 °C. The temperature uniformity, which is important for comparing sensors, is typically ±0.05 °C. These uncertainties therefore fit well with the measurement uncertainties achieved by industrial temperature sensors.
If you require an extended temperature range, maximum stability and precision, our calibration baths are suitable. Compared to most calibrators, Kambic calibration baths are characterized by a much better temperature stability of up to ±0.001 °C over a temperature range of -90 °C to +250 °C. The temperature uniformity in the liquid bath, which is important for comparing sensors, is ±0.007 °C.
When selecting calibrators for your industrial sensors, you should consider the following criteria:
- Temperature range
- Accuracy and stability
- Flexibility of use and immersion depth of the sensor
- portability
- Throughput
Do you have general or technical questions about our calibration baths, need more information or a quote?
Please contact us!
Well-known customers rely on solutions from Kambic
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