Multi mode calorimeter (MMC 274 Nexus)

1、 Instrument Introduction

MMC 274 Nexus ® It consists of two parts: the main unit (including the electronic system) and a replaceable calorimeter module, ensuring its full flexibility.

The instrument provides three replaceable calorimeter modules for different applications. Adiabatic acceleration calorimetry (ARC) ®） The module is capable of conducting standard process safety tests in heating waiting detection and isothermal insulation modes. The Scanning module can perform temperature rise and constant temperature scanning tests similar to DSC, which can be used not only to study exothermic reactions but also to study endothermic reactions. The button battery measurement module is used for performance research of button battery charging and discharging and temperature scanning. It will not be described in detail here. Please refer to MMC 274 button battery module
MMC 274 Nexus ™ Core functions:
●Multiple measurement modes are integrated, covering a wide range of application areas.
-Standard adiabatic tracking mode of heating waiting detection
-Isothermal adiabatic tracking mode
-Heating scanning calorimetry mode (constant power, linear heating)
-Isothermal scanning calorimetry mode
-Constant temperature difference mode, multi-stage mode, etc
●Based on the same desktop instrument, there are multiple calorimeter modules to choose from
-ARC module, used for security testing.
-Scanning calorimeter module, used for scanning tests similar to DSC.
-Button battery module, used for performance research of button batteries.
●Wide temperature range, up to 500 ° C
●Wide pressure range, up to 100 bar (10 Mpa)
●A variety of sample containers are made of different materials and offer different size specifications.
●Proteus ® Software used to analyze starting point, peak temperature, area, etc. MMC data can be analyzed together with other thermal analysis data in the same interface.

2、 MMC 274- Technical Parameters (Continuously Updated)
●Temperature range: 20 . 500°C
●Temperature resolution: 0.01 K
●Heating rate: 0 . 5 K/min
●Pressure range: 0 . 100 bar
●Pressure resolution: 0.01 bar
●Blast chamber capacity: 0.1 ml... 10 ml
●Adiabatic tracking rate: up to 50 K/min
●Tracking rate sensitivity: depends on temperature range, with a minimum of 0.002 K/min

3、 MMC 274- Software Features
Absolute heat related software functions:
●Calculation of adiabatic temperature difference and heat release.
●Calculation of adiabatic temperature difference and heat release after correcting thermal inertia.
●TMR curve, TD24 calculation.
●The TMR curve after correcting thermal inertia is compared with TD24 calculation.
●Simulate and calculate the adiabatic temperature rise curve at any specified thermal inertia and starting temperature.
●Display the first-order derivative curve of temperature and pressure: temperature change rate, pressure change rate.
●Display the relationship between pressure and time/temperature.
●Dynamics fitting calculation, supporting 14 different mechanism functions, directly obtaining kinetic parameters such as activation energy, pre exponential factor, reaction order, etc.
●...
Scanning calorimeter related software functions:
●Obtain the heat absorption and release power curve of the sample. Label the reaction peak temperature, starting point, ending point, reaction enthalpy, and other information on it.
●Peak area (enthalpy of reaction) annotation supports multiple baseline types (linear, inverse curve, tangent, horizontal left/right start, tangent left/right start, Bezier curve, zero baseline)
●Label the changes in pressure over time/temperature during the reaction process. The first-order WeChat business can obtain the pressure change rate curve.
●It can be compared and displayed in the same spectrum with other thermal analysis curves such as DSC and TGA.
●Specific heat analysis function.
●...
Other standard software features (Proteus characteristics):
●Dozens of test curves can be loaded and analyzed simultaneously within a working interval, and various measurement data such as ARC, DSC, TG, DIL, DMA, etc. can be analyzed and compared within the same working interval.
●Any number of sub windows can be established within a work interval to analyze various parts of the analysis object, and can be saved as a single analysis file.
●The curve can be arbitrarily enlarged/reduced and coordinate adjusted.
●Picture in picture and picture in picture switching function.
●Graphic splitting function.
●Level 16 smoothing function.
●Merge/split and fit connections for multiple temperature ranges.
●First order WeChat business and second-order WeChat business.
●Data point labeling function.
●Insert text and other object functions.
●Powerful data import function, capable of importing any ASCII code data in table format.
●The analysis chart can be exported as images PDF、 Output to clipboard or export as ASCII text file.
●Flexible and diverse customization settings.
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