Endress+Hauser Micropilot FMR20, Руководство по эксплуатации, Страница: 16 / 102

Installation Micropilot FMR20 HART
16 Hauser
• Avoid measurements through the filling curtain.
• Avoid internal fixtures such as limit switches.
• No signals are evaluated within the Blocking distance (BD). It can therefore be used to
suppress interference signals (e.g. the effects of condensate) in the vicinity of the
antenna.
An automatic Blocking distance of at least 0.1 m (0.33 ft) is configured as standard.
However, this can be overwritten manually (0 m (0 ft) is also permitted).
Automatic calculation:
Blocking distance = Empty calibration - Full calibration - 0.2 m (0.656 ft).
Each time a new entry is made in the Empty calibration parameter or Full calibration
parameter, the Blocking distance parameter is recalculated automatically using this
formula.
If the result of the calculation is a value <0.1 m (0.33 ft), the Blocking distance of
0.1 m (0.33 ft) will continue to be used.
5.1.4 Device alignment for installation on a vessel
• Align the antenna so that it is perpendicular to the product surface
• Align the eyelet with lug towards the vessel wall as well as possible
90°
90°
90°
90°
90°
A0028927
 6 Device alignment for installation on a vessel