• Turn key temperature control system• Extensible with Novocontrol Dielectric/Impedance Analyzers• Dedicated sample cell for dielectric andimpedance spectroscopy included• Designed for easy, safe and fully automatic
operation• wide temperature range: ­100°C to +250°C• 0.1°C stability• Includes Novocool PID controller with non­linear
extensions, stabilized power supplies, cryostat withgas­heating element, liquid nitrogen evaporator,
120 l Dewar vessel

Novocontrol Technologies
GmbH & Co. KG
Aubachstr. 156410 Montabaur
Germany
Phone: +49 2602 9196690
Fax:+49 2602 91966933
e­mail: novo@novocontrol.de
web: http://www.novocontrol.de

Novocool

Economical Temperature
Control Systemfor Materials Analysis

NOVOCONTROL

NovocoolCryosystem
The Novocool Cryosystem is a highquality turn key temperature control
system for applications in materials
research. A sample cell particularly
suited for dielectric and impedance
spectroscopy is included. The sys‐
tem has been developed to set orchange the temperature of the sam‐ple under test with high accuracy
and reproducibility. The system ismodular and may be combined with
any Novocontrol dielectric or imped‐
ance analyzer.
The Novocool Cryosystem provides
easy, safe and fully automatic oper‐
ation, enabling computer­controlledlong time experiments over several
days without supervision.

Applications
Various key materials properties,e.g., molecular relaxations, conduc‐tivity, phase separation, phase tran‐
sitions, activation energy, glass
temperature, rate of blending, purity,ageing, curing, either show marked
temperature dependence or are onlyaccessible through temperature-de‐pendent measurements. A tempera‐ture control environment is,therefore, an essential part of anyfully equipped system for the electri‐
cal characterisation of materials.
Temperature control thus extends

Principle of operation: A heating element builds up and controls a specified pressurein the liquid nitrogen Dewar vessel in order to create a constant nitrogen stream. The
nitrogen stream, heated to a temperature appropriate for the desired sample tempe‐
rature setting, flows directly through the sample cell inserted into the cryostat top
flange. The sample temperature is measured at the lower sample cell electrode.
The pressure inside the Dewar vessel as well as the gas and sample temperatures
are constantly monitored by the Novocool controller. The multiple­channel design al‐lows highly stable, fast and safe system operation. The Novocool cryostat thermal
insulation supersedes a separate insulation vacuum. For optimized operation, thedewar pressure is dynamically adjusted by the Novocool microprocessor control unit.

the versatility of dielectric and impe‐
dance spectroscopy and increases
the significance of the obtained re‐sults.

Features• Temperature range:–100 °C to 250 °C• Temperature ramps from0.1 °C/min to 20 °C/min• 0.1 °C temperature stability• Low temperature overshooting
after set point step
• Rapid temperature stabilization• Low nitrogen consumption due toautomatic pressure ­ temperature
adaptation• Four­channel microprocessor
controller with 24 bit ADC and IEC
communication port
• Fully supported by Novocontrol
DETACHEM control andevaluation software suite

Stabilization characteristics of the sample temperature (process value) compared to thetemperature set point (step function). Set point step after sample temperature stabilization.