Vega VEGAFLEX 61 Operating Instructions Manual

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Vega VEGAFLEX 61 Operating Instructions Manual Manual pdf 11 page image

Fig. 2: Measures against moisture penetrationThe reference plane for the measuring range of the sensors is thesealing surface of the thread or flange.Keep in mind that a min. distance must be maintained below thereference plane and possibly also at the end of the probe -measurement in these areas is not possible (dead band). Keep in mindthat the cable length cannot be used all the way to the end becausemeasurement in the area of the gravity weight is not possible. Thesedead bands are listed in chapter "Technical data". Keep in mind for theadjustment that the default setting for the measuring range refers towater.The process fitting must be sealed if there is gauge or low pressure inthe vessel. Before use, check if the seal material is resistant againstthe measured product and the process temperature.The max. permissible pressure is specified in chapter "Technical data"or on the type label of the sensor.4.2 Mounting instructionsMount VEGAFLEX 61 in such a way that the distance to vesselinstallations or to the vessel wall is at least 300 mm (12 in).During operation, the probe must not touch any installations or thevessel wall. If necessary, fasten the probe end.In vessels with conical bottom it can be advantageous to mount thesensor in the center of the vessel, as measurement is then possibledown to the lowest point of the bottom. When using the cable version,Measuring rangePressureMounting positionVEGAFLEX 61 • Profibus PA 114 Mounting31835-EN-100426