• Turn key temperature control system• Extensible with Novocontrol
Dielectric/Impedance Analyzers• Designed for easy, safe and fully automatic
operation• wide temperature range: –50°C to +200°C• 0.1°C stability• Includes PHECOS PID controller with non­linear
extensions, stabilized power supplies, dual­stage
Peltier element• Optional sample cell set­ups for standard
dielectric samples, interdigitated sensors,
electrochemical and ionic conductivity
measurements

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.dePHECOSP e l t i e r H e a t / C o o l Sy s t e mf o r M a t e r i a l s A na l ys i s

NOVOCONTROL
Temperature Control Applications
Today, most materials and devices are required to operate
without failure in a certain temperature range. The so­calledindustrial range, e.g., is usually considered to extend from –40 °C
to +85 °C, the automotive range from –40 °C to +125 °C.
Broadband Dielectric and Impedance Spectroscopy is a perfecttechnique for the electrical characterisation of materials andtechnical samples like, e.g, membranes, sensors, batteries, andsolar cells. Since many sample properties drastically change
upon temperature variations, such measurements require astable, reliable, and easy­to­use temperature control system. In
addition, it is desirable to have the option of performing fully
automatic measurements of the electrical properties (like, e.g.,complex permittivity, conductivity, and impedance) as afunction of temperature in the frequency and time domains.
The relevance of a highly stable and reliable temperature
control system is frequently underestimated. Researchersand engineers may waste tremendous amounts of time when
applying inadequte means of temperature control,
especially if simple ways of automation are not in reach.
PHECOS is a high quality turnkey temperature control system forapplications in materials research, dielectric testing, andelectrochemistry. Variaous sample cell setup, e.g., for standard
dielectrics, interdigitated electrodes, and electrochemicalmeasurements are available as options. The system has beendeveloped to set or change the temperature of the sample un­
der test with high accuracy and reproducibility. PHECOS is mod­ular and may be combined with any Novocontrol dielectric or
impedance analyzer (connection via BNC cables).
Since PHECOS is based on a dual­stage Peltier element whosesole resource is electrical power, no cryogenic fluids are required
for the temperature control operation.
The new PHECOS Heat/Cool System provides easy, safe and fully
automatic operation, enabling computer­controlled long time
experiments over several days without supervision.

PHECOSPHECOS Features• High­quality temperature control
system for dielectric andelectrochemical impedance
measurements• Modular setup with several
sample cell set­ups for e.g.
dielectric and impedancematerial measurements, 2, 3 or 4
wire configurations forelectrochemical samples andinterdigit electrodes for e.g.
monitoring of chemical reactions
and curing of epoxies or glues orpaints.
• Supports external gas inlets andoutlets for defined atmosphere
within the sample cell volume.
• Compatible with Novocontrol
Dielectric / Impedance
analyzers, potentiostats /galvanostats and high voltage
interfaces.
• Compatible with Novocontrol
WinDETA and WinCHEM softwarefor electrical characterization ofmaterials and technical samples
in the frequency and time
domains.
• Operating principle: Dual­stage
Peltier heat/cool system• T range: –50 °C to 200 °C(Tambient < 25 °C)• T stability: 0.1 °C• T accuracy: 0.2 °C• temperature ramps from0.01 °C/min up to 30 °C/min• temperature overshooting after
set point step typically < 1 °C
• stabilization times typically below
5 minutes (for 0.1 °C stability)• microprocessor controller with

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

24 bit ADC and IEC
communication port