The DSC L92 from Calneos by Linseis is an ultra-sensitive micro calorimeter designed to deliver the highest precision in thermal analysis. With its unique sensor design, direct sample temperature measurement, and Joule effect calibration, it provides unrivalled accuracy for studying solids, liquids, and even highly dilute solutions.
Equipped with interchangeable measurement cells, the system covers a broad range of applications. Batch and high-pressure Cp cells allow highly accurate heat capacity determinations, while bi-compartment and continuous flow cells enable advanced studies of chemical reactions, mixing enthalpies, and gas dissolution processes under pressures up to 100 bar. This flexibility makes the DSC L92 a powerful tool for both routine measurements and specialized research tasks.
The instrument operates within a temperature range from -40 °C to 160 °C, with scan rates from 0.001 to 5 °C/min and a temperature regulation precision of 100 µK. Its exceptional low-noise performance (0.05 μW RMS) ensures that even the weakest transitions can be detected and analyzed with confidence.
Applications include detailed heat capacity studies, melting and crystallization analysis, detection of liquid-liquid phase transitions such as demixing or degassing, and the characterization of polymers like PTFE. Thanks to its compact footprint and innovative design, the DSC L92 combines high performance with ease of use, providing researchers with a reliable and versatile calorimetric solution.
Whether you are exploring phase transitions, studying reaction enthalpies, or analyzing gas-laden solutions under pressure, the DSC L92 delivers the sensitivity and flexibility required to push the boundaries of thermal analysis.
Unique Features
- Ultra-high sensitivity
Direct sample temperature measurement with Peltier sensors and Joule effect calibration – enabling the detection of even the weakest thermal events. - Exceptional precision
Temperature regulation with 100 µK precision and extremely low RMS noise (0.05 μW), ensuring unrivalled measurement accuracy. - Wide application flexibility
Multiple interchangeable measurement cells (batch, high-pressure, bi-compartment, continuous flow) for solids, liquids, solutions, and chemical reactions – including studies under pressures up to 100 bar.
- Broad measurement range
Temperature range from -40 °C to 160 °C, scan rates from 0.001 to 5 °C/min, and measurement range of ±150 mW. - Compact and versatile design
Space-efficient instrument (900 × 700 × 500 mm) that integrates advanced functionality into a robust, easy-to-use system. Comprehensive research applications
Ideal for studying heat capacities, melting and crystallization, phase transitions (e.g., demixing, degassing), polymer behavior, and enthalpy of reactions.
Fast measurement cycles Typical measurement times between 30–60 minutes, allowing efficient workflows.
Typical measurement times between 30–60 minutes, allowing efficient workflows.
Direct T-sample measurement
Unlike conventional systems, the DSC L92 measures the sample temperature directly, ensuring maximum accuracy.
Reusable measurement cells
Many cell types are reusable, reducing running costs and improving sustainability in long-term research.
Highlights
Low noise
Ultra sensitive design
Versatile measurement cells
Broad application range
Wide temperature range
For solids, liquids and highly dilute solutions research
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Specifications
Temperature precision: 100 µK regulation
Temperature range: -40°C to 160°C*
Sensivity/Noise: RMS noise only 0.05 µW
Discover our ultra-sensitive micro calorimeter – designed for unrivalled precision across solids, liquids, and even highly dilute solutions:
Scan rates: 0.001 to 5 °C/min
Measurement range: ±150 mW
Measurement time: 30–60 min per experiment
Sensors: Peltier elements with direct T-sample measurement
Dimensions: 900 × 700 × 500 mm
Available Cells DSC L92
1. Batch cells
These cells can be used to study solids and liquids. They are the best for
precise heat capacities measurements (better than 3%) of and they are
reusables.
They can also be used to study transitions (melting/crystallisation) and
liquid-solid or liquid-liquid phase diagrams.
Useful volume: 700 μl
Closed system (silicone O-ring): mass measurement
Pressure: a few bars
2. Liquid Cp cells high pressure
These cells have been specifically developed to measure the heat capacity
of liquids under pressure. Their unique design makes them easy to fill
completely and clean. Measurements are carried out in constant volume
and the cells are installed in the instrument for the entire measurement
campaign. They do not need to be removed to change the liquid being
measured, which means that the Cp volume can be measured with an
accuracy of better than 1%.
These cells can be used to observe very weak liquid-liquid transitions
such as „demixing“ or „degassing“.
They can be used at atmospheric pressure or under a few bars and have
been tested
up to 100 bars. With the right equipment, these cells can also be filled
under pressure.
They can therefore be used to analyse gas-laden solutions under pressure.
Useful volume: 750 μL
Open system: volume measurement
Pressure: 100 bar
3. BI-Compartment cells
These cells enable enthalpy of reaction measurements to be made by
limiting the Cp effect of the injection. A liquid is loaded into the upper
compartment and injected into the lower compartment (solid or liquid).
Useful volumes: 150+250 μL
Closed system: mass measurement
Pressure: a few bars
4. Continous A + B rection cells
These cells measure the enthalpy of mixing of 2 fluids in a continuous
flow (heat of chemical reaction, heat of gas dissolution or enthalpy of
excess of a liquid mixture). The measurement is carried out dynamically.
An internal tubing system is used to equilibrate the fluids to the temperature
of interest, then mixing takes place within the measurement system
and is discharged outside the calorimeter. The heat measured is directly
proportional to the flow rates and heats measured.
Continuous flow system
Isothermal measurements
Pressures: up to 100 bar (higher pressures on request)
Flow rates: up to 1mL/min
Software
Making values visible and comparable
The software greatly enhances your workflow as the intuitive data handling only requires minimum parameter input. AutoEval offers a valuable
guidance for the user when evaluating standard processes such as
melting and crystallization points. The optional thermal library product
identification tool, provides a database permitting an automatic identification tool for your tested polymer. Instrument control and/or surveillance through mobile devices gives you control wherever you are.
- Software packages are compatible with latest Windows operating system
- All specific measuring parameters (User, Lab, Sample, Company, etc.)
- Optional password and user levels
- Undo and redo function for all steps
- Infinite heating, cooling or dwell time segments
- Multiple language versions such as English, German, French, Spanish, Chinese, Japanese, Russian, etc. (user selectable)
- The evaluation software offers a wide range of functions for the comprehensive analysis of all data types
- Complete evaluation history (all steps can be undone)
- Data acquisition and evaluation can be performed simultaneously
- Data can be corrected using zero correction
- Data evaluation includes: software signal correction and smoothing, first and second derivative, curve arithmetic, data peak evaluation, glass point evaluation, zoom, multiple curve overlay, annotation, copy to clipboard function, multiple export features for graphic and data export, automatic gas control
Application
Application example: Measurement of the volumetric heat capacity by volume of fluids under controlled pressure
The volume vessel is filled by injecting approximately 3 mL of the liquid sample to be analysed with a syringe. This volume fills the useful volume of the vessel (0.7 mL) and the filling tubes. A slight counter-pressure is applied to the sample at the inlet (around 2 bar) to hold it during measurement and allows the sample to expand during the heating ramp. The Ultimate Micro Calorimeter was programmed as follows: a 40-minute isotherm at 5°C, followed by a heating ramp between 5°C and 73°C at 1°C/minute, and another 40-minute isotherm at 73°C. A total of 4 experiments of less than 2.5 hours were carried out: with water, absolute ethanol, cyclohexane, and a blank experiment that was subtracted from the other thermograms. The thermograms obtained are shown below.
The heat flow measured is proportional to the volumetric heat capacity of the fluid analysed. Simple mathematical processing of the signal obtained enables the calculation of the volumetric heat capacity.
Application example: Phase transitions in PTFE close to ambient temperature
A 524 mg PTFE cylinder was placed in the measurement cell while the reference cell remained empty. The Ultimate Micro Calorimeter was programmed to perform several heating ramps between -10°C and 80°C, at scanning rate of between 0.5 and 3°C/minute. The thermograms obtained are shown here after. At all the rates, the two Teflon phase transitions were observed. The separation of the two transitions is better on the thermograms with the low scan rate.
The Ultimate Micro Calorimeter is an effective tool for studying phase transitions in materials. Its high sensitivity makes it easy to study very low-energy phenomena.
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