faq's
Our devices typically become a part of a system in different applications. There are many applications and each requiring their own directive. However, we will provide information about our product in order for our customers to attain certificate for their system.
All our products are RoHS compliant.
Yes, all our modules and boards are manufactured in the USA.
Typically Peltier elements have a red (positive) and a black (negative) cable. Our TEC controllers have TEC+ and a TEC- pins which should be connected to the red cable and the black cable of the Peltier respectively.
That is; red cable connects to the TEC+ and black cable connects to the TEC- of the controller.
TEC Controllers have bipolar outputs they can switch between heating and cooling by changing the direction of the output current.
There are a number of factors limiting the temperature range, these are;
-NTC characteristics , that is temperature vs resistance of the NTC.
-How good the cold plate of the TEC element is isolated from ambient.
-How good is the heatsink connected to the hot plate of the TEC element.
-The ∆T of the TEC element.
Contact us to discuss your specific requirements
A voltage from approximately 0.28 to 1.04V at the TEMP_SET pin of the TEC controller will allow temperature change from 70°C to +5°C with a typical 10K NTC. This range can be extended as required. Contact us
A voltage from approximately 0.28 to 1.04V at the TEMP_SET pin of the TEC controller will allow temperature change from 70°C to +5°C with a typical 10K NTC. This range can be extended as required. Contact us with your specific requirements.
Yes, it is possible to drive a waveform at the TEMP_SET pin of the controller rather than a fix voltage. The corresponding temperature at the object will follow the input waveform. It is important for the waveform to be slow enough to allow the object to reach the set temperature at each point of the waveform.
Yes, this is possible. No specific adjustment is needed.
Make sure that the TEC element wires are connected to the TEC controller correctly. TEC+ connects to the Red wire and TEC- connects to the black. If this is not the cause, then the problem maybe the following;
– Is the TEC element large enough for the load? If the TEC is too small to pump away the waste heat from the load, the load temperature will rise.
– Thermal runaway; Thermal runaway can happen if the heat sink is too small to dissipate the heat pumped away from the load by the TEC. A larger heat sink is needed, or increased airflow over the existing heat sink. Thermal runaway can also happen if the ambient temperature is too high. Increasing airflow will help this situation
Since TEC and temperature sensors are located close to the object being temperature controlled, if the object is electrical they are capable of picking up electrical noise. Our TEC controller outputs are differential outputs with in-phase polarities which cancels out noise present at the outputs. Nevertheless since temperature controllers are PWM controllers they radiate noise at the switching frequency. Adding filter components to the TEC leads minimizes radiation effects