Installation Micropilot FMR20 Modbus RS485
14 Endress+Hauser
5.1.3 Position for installation on a vessel
A0045323
5 Installation position on a vessel
• If possible install the sensor so that its lower edge is inside the vessel.
• Recommended distance A wall - nozzle outer edge: ~ ¹⁄₆ of the vessel diameter. Under no
circumstances should the device be mounted closer than 15 cm (5.91 in) to the vessel wall.
• Do not install the sensor in the middle of the vessel.
• 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.
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