Navigation:  Tutorials > Measurement tutorials > Temperature > DEWESoft 7.0  data acquisition, processing, analyzing and storage software Channel setup

The picture below shows a typical configuration for temperature measurements. We can see two DAQN-THERM modules as well as one PAD-TH8-P module. There is also an EPAD version available.

The DAQN-THERM is a module for measurements of thermocouple sensors. There are two K types connected. The PAD-TH8-P can handle (depending on the connector block) thermocouples and RTDs. For RTDs one can also use a DAQN-RTD module.

 

For this example, there is also a cup of tea, just to make high temperature difference visible in the response of the channels. The measurement of temperature in liquid is one area of measurements, but an even bigger area is the measurement of surface temperatures. The mounting of the sensors is done with strapping, screwing, gluing or any other method providing a good contact between the surface and the sensor. This could often be a problem if the surface has some voltage potential, but since the DAQN-THERM as well as PAD-TH8-P are isolated, this is not a problem at all. Isolation of DAQN-THERM is 1 kV while PAD-TH8-P has an isolation voltage of 350 V. 

To be able to use DAQN-THERM, go to Settings  → Hardware setup... and enable DAQN modules in the Analog section. Then go to the channel setup and go to the Channel setup screen where the module is inserted. In this case (see picture below) the module is at address 0 and 1. Select the 0 to 1000 deg C measurement range  from the list. Since the linearization is done in the software based on this choice, the user needs to set the module correctly; otherwise the scaling will be wrong. For the US market, we can select to set up the conversion from deg. C to deg. F under Settings  → Global setup.... An additional button  appears in Scaling by function. When clicking this button, an automatic unit conversion is done (scaling factor 1,8 and offset 32). 

 

Since there are two modules in the system, the user needs to set both and then the following channel setup appears.

 

There are two sensors installed in the system, so the user needs to set both of them to Used.