64-channel thermocouple measurement device

The 64-channel thermocouple measurement device (64- KTM) is a compact measurement system in a 19“-housing and intended for high-precision measurement of 64 thermocouples of any type. The 1 GB data memory acquires and saves the measurement results independently and over months. A TCP interface to a network is available for online measuring. The measurement channels are high resolution and can achieve, depending on thermocouple and measurement area, an absolute accuracy of < 0.2 K.

A 64-KTM master can be extended at any time with 64- channel slave devices, with the same 19“-housing, therefore providing a total of over 5,000 measurement channels. The device includes the ProfiSignal Basic software for measurement data archiving, and online / offline measurement data analysis. A driver is also available for all current measurement technology software or OCX driver. In developing the device, particular attention was given to cold junction compensation and high-precision.

Applications

The system was developed to provide multi channel solutions for temperature measurement using thermocouples. Typical users are those from R&D and laboratories who need to acquire highly precise temperature measurements. Easy to use and universal thermo connectors enable quick and simple attachment of the various types of thermocouple. Traditional areas of use are at test stations for gas turbines or boilers. The system is also suitable for temperature measurement in ovens, heating chambers or climate cabinets.

Measurement accuracy: 0.2K absolute

The measurement technology being used is intended for extremely precise measurement acquisition. Differential inputs with 110V isolation and galvanic separation prevent measurement errors from earth loops. Inbuilt network filters for 50Hz or 60Hz networks suppress any power supply interference. The specially developed cold junction compensation serves to isolate measurements from environmental interference and ambient temperature fluctuations.

Evaluation software

A special feature of the system is its user friendly configuration and evaluation software. ProfiSignal provides an extensive range of analysis tools. The software also supports Excel export and drivers for LabVIEW and Dasylab.

For the configuration software, the analog inputs are simply set to the relevant thermocouple. It is also possible to connect different types of thermocouple for varied operations.

Storage

The 64KTM is equipped with a partitionable internal memory for up to 128 million data records. The memory's independent data recording capability provides data security for long-term measurement runs.

Monitoring and alarm functions

Many channels can be set up for limit values, calculations and event processing. These channels enable the computation of characteristic values during measurement runs. This also includes the calculation of moving averages and enables monitoring and alarm functions. The system is able to transmit e-mails or portray limit value violations within an alarm table.

Scaled and extendable

The basis versions is set up for 64 channel operation. The modular design enables several units to be connected so that several thousand channels can be processed. The measurement device is equipped with an Ethernet interface. This means easy integration into the company network. Data evaluation can then take place conveniently at any PC workstations.

Application Notes

Below features our collection of application notes and case studies involving this product.

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