A world of features in a highly compact housing
With a strong reputation within the market for Ex rated interface devices, Turck recently took a good look at the market and identified that customers increasingly have three key requirements, focused on safety, panel space and performance. The company therefore undertook a development programme for a new generation of interface technology, the result of which is the innovative IMX series.
Meeting all the requirements of IEM 61508, and tested globally for use in the widest number of regions in a single product, the IMX series is approved for Europe, North America, Sough America, China and Asia, with all products provided with UL, FM, ATEX, Mepsi, Koshka, Imetro and IEC-Ex certification.
Addressing the panel space requirement, the IMX offers a two channel interface in a 12.5mm housing width, with up to four terminal banks per side, achieving a channel density that Turck says is unrivalled on the market. With the new IMX series the space requirement on the DIN rail for the isolating switching amplifiers with a relay output (2-channel 4-wire resistance temperature sensors) has been reduced to half of that required by the IM series. Four separate removable terminal banks facilitate ease of connection as only actively used terminals need to be unplugged.
Turck has managed to increase both the accuracy and speed (15kHz) of the new series in spite of the narrow mounting width. This is highlighted particularly by the IMX12-AI EX analogue signal isolator. The new electronic design makes it considerably less sensitive to external factors such as temperature or voltage fluctuations. The effect of the interface device on the overall performance of a complete measuring circuit is thus considerably reduced. Further, Turck says it has been verified that the analogue signal isolators and temperature measuring amplifiers of the IMX series have the best overall performance in terms of accuracy of all 12.5mm interface devices.
The devices of the IMX12 series can be used in a 10 to 30 VDC range. This therefore opens up the possibility of use in applications that are supplied from batteries, solar collectors or small wind turbines. This possible use in smaller mobile and autonomous installations makes the IMX devices particularly interesting for manufacturers of small to medium-sized plants.
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