Endress+Hauser Micropilot FMR50 - Installation in Bypass

Installation Micropilot FMR50 HART
26 Endress+Hauser
• Select horn antenna as big as possible. For intermedaite sizes (e.g. 180 mm (7 in)) select
next larger antenna and adapt it mechanically (for horn antennas)
• At any transition (i.e. when using a ball valve or mending pipe segments), no gap may be
left exceeding 1 mm (0.04 in).
• The stilling well must be smooth on the inside (average roughness R
z
≤ 6.3 μm (248 μin)).
Use extruded or parallel welded metal pipe. An extension of the pipe is possible with welded
flanges or pipe sleeves. Flange and pipe have to be properly aligned at the inside.
• Do not weld through the pipe wall. The inside of the stilling well must remain smooth. In
case of unintentional welding through the pipe, the weld seam and any unevenness on the
inside need to be carefully removed and smoothened. Otherwise, strong interference echoes
will be generated and material build-up will be promoted.
• In the case of smaller nominal widths flanges must be welded to the pipe such that they
allow for a correct orientation (marker aligned toward slots).
6.5 Installation in bypass
1
2
2
90°
90°
A0019446
 8 Installation in bypass
1 Marking for antenna alignment
2 Tank connectors
• Align the marker perpendicular (90°) to the tank connectors.
• Measurements can be performed through an open full bore ball valve without any
problems.
• After mounting, the housing can be turned 350° in order to facilitate access to the display
and the terminal compartment →  27.