Quick-Ohm QC-PC-C01H-100 User manual

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industr Ceramics
www.quick-ohm.de
20140423User Manual Peltiercontroller Compact Heating.docheating - 1 -
Peltier Controller QC-PC-C01H-100
User Manual
Temperature Controller for Heating Applications
Technical specifications:
Dimension controller: 65mm x 50mm x 20mm
Temperature range: 0°C – 100°C
Voltage suppl : 10V – 24V
Max. output voltage: corresponding to input voltage
Max. output current: 10A
1. Usage of controller QC-PC-C01H-100
The controller QC-PC-C01H-100 has been developed to heat up an object aided b a Peltier
element and to keep the temperature constant. Instead of a Peltier element also the utilization of a
flexible film heater or something similar is possible. The controller runs with a minor voltage and
must not get connected to a standard power suppl . For the setup of a functioning control an
electric wiring needs to be installed, which requires basic knowledge about electronics. Please
onl work on the device in a volt-free condition. Please consider that the controller and eventuall
triggered components ma get destro ed, if the are applied inappropriatel . Despite the fact that a
minor input voltage is used, large currents occur, which initiate a significant heating at
unprofessionall executed contacts and too thin wires, which might cause a blaze. Because of that,
please read the user manual thoroughl and get some instructions b an electronics-specialist in
case ou are none. If ou notice a heating inside of the wiring at an time, please switch the circuit
volt-free immediatel . If ou follow the subsequent hints during the setup of our device, ou will
enjo our controller and the used Peltier elements for a long time.
Deliver contents:
1 Peltier controller QC-PC-C01H-100
1 Temperature sensor NTC 10KΩ(β=3977K)
1 Potentiometer 10KΩ
1 User manual

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industr Ceramics
www.quick-ohm.de
20140423User Manual Peltiercontroller Compact Heating.docheating - 2 -
2. The basic principle:
The heating with Peltier elements distinguishes fundamentall from conventional heating
procedures, which convert energ to heat, like e.g. an ordinar cooktop. Because here the heat gets
absorbed on the one side of the Peltier element from the adjacent ambience and gets emitted on the
other side. To utilize that “heat pumping” a setup as it can bee seen in Fig. 1 has to be established.
Here the basic composition, which is indispensable for the work with Peltier elements, is
recognizable. There is an area that should be brought to a certain temperature. This area is
equipped with a temperature sensor. On the other side the area is located where the heat gets
extracted from or the redundant heat energ is led to in case of a heating and cooling application,
respectivel . In this second area the temperature is usuall not surveilled. To prevent a collapse of
the application induced b an excessive removal or feeding of heat, this area is contacted with the
environment intensivel . That implies that b the usage of a heatsink the surface gets enlarged
multipl to establish the needed contact with the ambience. The size of this heatsink and the
impeccable bonding between Peltier element and heatsink on the one side and between Peltier
element and heating and cooling plate, respectivel , on the other are the basic conditions for the
determination of the performance of their setup. If ou alwa s focus on that basic structure, our
results will be successful. Please visit the categor Know how in the section of the heat
management on our website indicated below to deepen our knowledge. Here ou find tips and
information in a comprehensible and visualized la out.
Heatsink cold
side
Thermal grease
or thermal foil
etc
Peltier element
(printed side
below)
Tempered area
hot side
Fig. 1:
Temperatur
e
sensor

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industr Ceramics
www.quick-ohm.de
20140423User Manual Peltiercontroller Compact Heating.docheating - 3 -
3. The electrical setup
To run the controller, a source of direct current voltage is necessar . All sources in the range of
10VDC to 24VDC are usable. Please consider that the controller is not adjustable to an current or
voltage limits. I.e. the controller transfers the full voltage to the Peltier element, if in case of
maximum heat requisition the nominal temperature is much higher than the actual temperature.
Therefore make sure that the suppl voltage does not exceed the maximum permissible voltage of
our Peltier element (flexible film heater) or concatenate several Peltier elements in series until the
sum of all single voltages reaches at least the value of the suppl voltage. Care has to be taken that
onl equal elements are wired up to guarantee a consistent distribution of the voltage. Fig. 2
depicts the wiring of the single components of the control circuit. The colors correspond to the
colors of the wires of the controller.
If ou follow this circuit diagram and use Peltier elements from QUICK-OHM, the imprinted side
will get cold and the blank side will get hot.
Controller
QC-PC-C01H100
+ -
Suppl -
voltage
10V … 24V
Peltier element
Temperature
sensor
NTC 10KΩ
Potentiometer 10K
Ω
Fig. 2:
White
+5V Poti
Yellow
Control
Poti-Signal
Green
Gnd
Sens/Poti
Gre
Sensor
Signal
Red
+PE
Blue
-PE
Black
GND
Orange
10..24V

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industr Ceramics
www.quick-ohm.de
20140423User Manual Peltiercontroller Compact Heating.docheating - 4 -
4. Adjusting the temperature:
The controller regulates the temperature in a range from 0°C to 100°C. Please take into account
that the controller is onl able to heat. The achievement of e.g. 0°C is onl possible, if the
temperature of the cold side is lower, which makes the whole process to a heating procedure.
During the start-up it is helpful to appl marks to the potentiometer. If ou pause between the left
and the right end stop in some intermediate positions and measure the settled temperature with a
thermometer, ou will be able to draw up a scale b the utilization of the single positions of the
potentiometer. It is possible to integrate a displa (QC-PC-D-100) into the circuit. This device
identifies the nominal temperature from the position of the potentiometer and displa s beside that
one also the actual temperature.
The control behaviour:
The images schematicall show the control histor of temperature and current dependent on the
time. The histor represents exemplaril the so-called step response of temperature and current,
caused b a change of the nominal value from room temperature to (here) +80°C. The diagram
depicts the characteristic control behaviour. A harmonic control with ideal conditions for a long
lifetime of the deplo ed Peltier elements can be identified.
Stromverlauf Heizen
0
20
40
60
80
100
120
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
Zeit
Strom/100%xImax
Temperaturverlauf Heizen
0
10
20
30
40
50
60
70
80
90
100
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29
Zeit
Temperatur/°C
5.Tips:
1. If the temperature of the heatsink (cf. Fig. 1) deceeds the temperature of the environment
clearl , the maximal reachable temperature might fall. Additionall the s stem needs more energ .
In this case either the heatsink has to be enlarged or a fan has to be applied to increase the
performance.
2. The maximum heating power corresponds approximatel to the sum of thermic power and
electric power (P=U*I).
3. Attach the temperature sensor at the area next to the section that has to be tempered, which is
adjacent to the Peltier element. Thereb ou avoid an overheating of our element caused b an
uncontrolled temperature gradient.