Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industry 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 supply: 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 by 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 supply. For the setup of a functioning control an
electric wiring needs to be installed, which requires basic knowledge about electronics. Please
only work on the device in a volt-free condition. Please consider that the controller and eventually
triggered components may get destroyed, if they are applied inappropriately. Despite the fact that a
minor input voltage is used, large currents occur, which initiate a significant heating at
unprofessionally executed contacts and too thin wires, which might cause a blaze. Because of that,
please read the user manual thoroughly and get some instructions by an electronics-specialist in
case you are none. If you notice a heating inside of the wiring at any time, please switch the circuit
volt-free immediately. If you follow the subsequent hints during the setup of your device, you will
enjoy your controller and the used Peltier elements for a long time.
Delivery 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 – Industry Ceramics
www.quick-ohm.de
20140423User Manual Peltiercontroller Compact Heating.docheating
- 2 -
2. The basic principle:
The heating with Peltier elements distinguishes fundamentally from conventional heating
procedures, which convert energy to heat, like e.g. an ordinary 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 energy is led to in case of a heating and cooling application,
respectively. In this second area the temperature is usually not surveilled. To prevent a collapse of
the application induced by an excessive removal or feeding of heat, this area is contacted with the
environment intensively. That implies that by the usage of a heatsink the surface gets enlarged
multiply 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, respectively, on the other are the basic conditions for the
determination of the performance of their setup. If you always focus on that basic structure, your
results will be successful. Please visit the category Know how in the section of the heat
management on our website indicated below to deepen your knowledge. Here you find tips and
information in a comprehensible and visualized layout.
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 – Industry 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 necessary. All sources in the range of
10VDC to 24VDC are usable. Please consider that the controller is not adjustable to any 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 supply voltage does not exceed the maximum permissible voltage of
your 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 supply voltage. Care has to be taken that
only 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 you 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
+ -
Supply-
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
Grey
Sensor
Signal
Red
+PE
Blue
-PE
Black
GND
Orange
10..24V
Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industry 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 only able to heat. The achievement of e.g. 0°C is only 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 apply marks to the potentiometer. If you pause between the left
and the right end stop in some intermediate positions and measure the settled temperature with a
thermometer, you will be able to draw up a scale by the utilization of the single positions of the
potentiometer. It is possible to integrate a display (QC-PC-D-100) into the circuit. This device
identifies the nominal temperature from the position of the potentiometer and displays beside that
one also the actual temperature.
The control behaviour:
The images schematically show the control history of temperature and current dependent on the
time. The history represents exemplarily the so-called step response of temperature and current,
caused by 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 deployed 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
Temperaturv erlauf 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
clearly, the maximal reachable temperature might fall. Additionally the system needs more energy.
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 approximately 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. Thereby you avoid an overheating of your element caused by an
uncontrolled temperature gradient.
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