Quick-Ohm QC-PC-CO-CH1 User Manual

Delivery content:
1 Peltier controller QC-PC-CO-CH1
1 Temperature sensor NTC 10KΩ (β=3977K)
1 Potentiometer 10KΩ
1 User manual

Peltier Controller QC-PC-CO-CH1

User Manual

Temperature Controller for Automatic Heating and Cooling

Applications

Technical specifications:

-Voltage supply: 12….24VDC/<45mA

-Separate driver supply: 3…48VDC

-Maximal Peltier current: 20A

-Interface Display connect: 3,5mm Stereo-Klinke

-Temperature range: -40°C - +100°C

-Sensitivity: 0,1 °C

-Accuracy +/- 1 K

-P-control characteristic

-Control parameter for heating and cooling range
separately adjustable

-Maximal nominal value limit adjustable

-Minimal nominal value limit adjustable

-Maximal output voltage adjustable

-Minimal output voltage adjustable

-Detection of sensorial burst and short circuit

1 Proper application of the controller QC-PC-CO-CH1

The Peltier controller QC-PC-CO-CH1 has been developed to actuate Peltier elements. The controller
undertakes the control of the temperature in a tempering setup. The temperature range of the controller
serves from -40°C to +100°C, while the controller triggers the Peltier element automatically for a
suitable heating or cooling. The control parameters are programmable by the display QC-PC-D-CH1.
The compact construction of the QC-PC-CO-CH1 enables the integration of the controller into a
controlling setup, without a significant disturbance of the overall design. The temperature
specification either has to be implemented by an external connectable potentiometer or a
programmable fixed value. The user has the ability to determine the supply voltage of the controller

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industry Ceramics

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and the driver supply of the Peltier element separately. Thereby it is possible to trigger optimally

heatsink

Thermal grease
or
thermal foil
etc.

Peltier element
(printed side
above,

respectively

Red-Right)

tempered area

Fig. 2:

Temperature sensor

F

nearby all Peltier elements that are available on the market. Furthermore the output supply can be
dedicated a minimal and maximal value, while these values can be set for heating and cooling
applications differently. Hence with the properties of the Peltier elements is taken into account, that
the generable heating power is a multiple of the cooling power. The compact controller QC-PC-CO­CH1 is delivered with preconfigured parameters, which allows an immediate installation into the
control without any programming. Please read the user manual thoroughly. If you follow the advice
and descriptions, a Peltier controller will stand by your side, which diverse deployability, compactness
and enormous performance capability is unreached by any other controller.

2 The principle of the Peltier tempering:

The directed current flow through a Peltier element causes plenty of physical processes, which
recognizable effect is the spatial displacement of heat energy. The temperature on one side decreases
while the temperature on the opposite side increases. This allows the planar attachment of a solid
component to heat it up or cool it down purposefully. Compared to conventional gas compressors (e.g.
refrigerators) the Peltier element has many advantages. E.g. a noiseless tempering without any
hazardous materials, without any movable components and freedom from maintenance is possible.
Additionally these devices can be miniaturized in a way that would be unimaginable without the
Peltier element. Fig. 2 shows the setup of such a tempering application that should basically always be
constructed like that.

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 tem perature is usually not surveilled. To
prevent a collapse of the application induced by an excessive removal or feeding of heat, this

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area is contacted with the environment intensively. That implies that by the usage of a heatsink

QC-PC-CO-CH1

- +

12V … 24V

Peltier element

Temperature sensor

β = 3977K

Potentiometer 10KΩ

Fig. 3:

White

Poti max

Yellow

Control

Poti-Signal

Green

Poti min

Grey

Sensor

signal

Brown

-PE

Blue

+PE

Black

GND

Red

12..24V

White

+2,5V

Supply voltage Peltier element:

plus

Orange

U-PE
3…48
VDC

Attention: After switching off the supply

for that time.

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.

3. The electrical setup:

The wiring of the single components with the controller requires basic knowledge of electrical
engineering and has to be conducted by a qualified person.

Supply

voltage

Controller

voltage internal capacities can hold the voltage
for five more minutes. Please make sure that
you don’t tough any connection in the circle

NTC 10KΩ

Option1 (one power supply): Jumper to red
Option2 (two power supplies): Jump minus of both power

supplies and lay orange on

To run the controller, a source of direct current voltage is necessary. Sources in the range of 12VDC
to 24VDC are usable. The controller has a separate power input for the supply of the Peltier element
available. The zero potential of both voltage sources is merged on the black wire. Thus, the control
supply and the Peltier supply can either be separated or alternatively connected.

4. Adjusting the control parameter:

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Components – Heat Management – Industry Ceramics

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The controller QC-PC-CO-CH1 already holds the default parameters in delivery condition which

100%

Heat parameter

maximum Heating

70%

Heat parameter

minimum heating

Heat parameter

maximum cooling

Heat parameter

minimum cooling

-100%

0%

Heat voltage

Cool voltage

current temperature

Range heating

Range cooling

Temperature

nominal value

Hysteresis

Depiction of the control characteristics

Fig. 4:

allows the usage without any programming. But it is also possible to change the control parameters to
optimize the response characteristics. To adjust these parameters, the controller either has to be
connected with the control unit QC-PC-D-CH1 or a computer. The control unit QC-PC-D-CH1 has a
display, where the control process can be traced at first sight. By an easily understandable menu all
parameters can be adjusted as required. The connection is done by a wire and a 3.5mm jack plug

20%

0%

100%

Important:
The voltage connected at the orange wire must not be above the maximum

voltage of the TEC. This value you can get from our homepage.

Quick-Ohm Küpper & Co. GmbH
Components – Heat Management – Industry Ceramics

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