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System Technik AG

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TPS - Thermal Analysis


Cells & Vessels
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Measuring Cells and Vessels
RADEX V5 RADEX sample vessels RADEX V6 SEDEX


RADEX V5
The RADEX V5 measuring cell permits cost-effective and safe evaluations within a range from ambient temperature to +400ºC. Low volumes are used (typically 2,5ml; ranging from 1.5 to 3ml, depending on vessel). One major advantage of RADEX is the affordable cost of the vessels. It allows occasional discarding if cleaning is impossible.

The detection threshold for onset temperatures is lower than in a DSC.

The RADEX cell is used for evaluations of a typical volume of about 2.5ml. Non-homogeneous substances can therefore be reliably evaluated.

RADEX V6
The RADEX V6 measuring cell permits cost-effective and safe evaluations within a range from -50°C up to +190ºC. The well-insulated RADEX V6 prevents freezing of the vessel and erroneous measurements.

The detection threshold for onset temperatures is lower than in a DSC.

The RADEX cell V6 is used for evaluations of a typical volume of about 2.5ml in a pressure vessel. Non-homogeneous substances can therefore be reliably evaluated.


SEDEX
SEDEX is the most versatile measuring cell. It is equipped with built-in illumination to monitor progress, and a magnetic stirrer. By using an oven with circulating hot air, solid substances can be evaluated for stability in a wire cage (transport stability etc).

The large size of the oven allows the installation of customer-specific vessels, even with dosing facilities. Optional thermostat controlled cooling coils provide cooling of the oven interior. This option changes the temperature range from +35ºC…+400ºC to -10ºC… +150ºC.

More about these measuring cells
--> see "Technical Data"


RADEX: open glass, sparged glass, sparged glass with gas outlet measurement, autoclave with/without pressure measurement SEDEX: wire baskets for storage and transport tests


Systems’ application options
The most important thermal safety tests can be carried out quickly, without danger and reliably with the RADEX V5 and SEDEX measurement cells:

X = STANDARD
A = Option Adiabatic
0 = not available

Functions SEDEX RADEX V5 / V6
Determination of Start Temperature in the first exothermy (on-set) X X
Isoperibolic Calorimetry
(several steps or one long-term step)
X X
Adiabatic Calorimetry
TMR, SHR, Arrheniusplot for activation energy
A A
IsoARC Calorimetry: "heat-wait-search", automatic adiabatic runs after exothermy detection A A
Measurements under pressure up to 150 bar X X
Gas flow measurement (Option with FM4) X X
Built-in stir option X 0
Inertia option
RADEX: only sample, SEDEX: whole oven room
X X
Dosing during test (fully automatic in recipe as option) X 0
Visual observation of sample X 0
Testing to decomposition/deflagration stage 0 X

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