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Average temperature measurement with MPT / RTD<br />
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4 Average temperature measurement with MPT / RTD<br />
4.1 Introduction MPT / RTD<br />
The 762 VITO MRT Interface can be used for interfacing 1 through 3 separate RTD spots which are in a 3 wire<br />
configuration or an MPT probe (Multiple Pt100 spots) consisting of 1 through 14 RTD's with 2 common ground<br />
wires (refer to figures 4.1 and 4.2).<br />
The RTD elements below the product level are used to determine the average product temperature, in respect to<br />
product immersion depth and hysteresis mechanisms and to actual valid level, last valid level or manual level.<br />
The RTD elements above the product level are used to determine the average gas temperature, in respect to gas<br />
immersion depth and hysteresis mechanisms and to actual valid level, last valid level or manual level.<br />
4.2 Commissioning of MPT / RTD<br />
The commissioning of the optional board should be performed after the basic commissioning of the level gauge,<br />
or indicator.<br />
4.2.1 Temperature related settings<br />
Figure 4.1 Multiple spot and tank data (1)<br />
Instruction manual VITO Page 27
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