Micropilot FMR20 HART
Endress+Hauser 15
Position for installation on a vessel
A0028410
11 Installation position on a vessel
• If possible install the sensor so that its lower edge projects into the vessel.
• Recommended distance A wall - nozzle outer edge: ~ ¹⁄₆ of the vessel diameter D. 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 equipment such as limit switches, temperature sensors, baffles, heating coils etc.
• 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.
Nozzle installation
The antenna should be located out of the nozzle for optimum measurement. The interior of the
nozzle must be smooth and may not contain any edges or welded joints. The edge of the nozzle
should be rounded if possible.
A0028413
12 Nozzle installation
A 80 mm (3 in) antenna
B 40 mm (1.5 in) antenna
The maximum length of the nozzle L depends on the nozzle diameter D.
To Next Page
Loading...
