Installation Instructions

Micropilot FMR20 Modbus RS485
20 Endress+Hauser
A0037747
 20 Horizontal installation with reflector plate
Mounting in a shaft
The pivoted mounting bracket is available as an accessory.
A
B
A0037748
 21 Mounting in a shaft, pivotable and adjustable
A Arm with wall bracket
B Pivotable and adjustable arm (e.g. to align the device with the center of a channel)
Environment
Ambient temperature range
Measuring device: –40 to +80 °C (–40 to +176 °F)
It may not be possible to use the Bluetooth connection at ambient temperatures
> 60 °C (140 °F).
Outdoor operation in strong sunlight:
• Mount the device in the shade.
• Avoid direct sunlight, particularly in warm climatic regions.
• Use a weather protection cover.
Storage temperature
–40 to +80 °C (–40 to +176 °F)
Climate class
DIN EN 60068-2-38 (test Z/AD)
Operating altitude as per
IEC 61010-1 Ed.3
Generally up to 2 000 m (6 600 ft) above sea level.
Degree of protection
Tested acc. to:
– IP66, NEMA 4X
– IP68, NEMA 6P (24 h at 1.83 m (6.00 ft)1.83 m under water)
Vibration resistance
DIN EN 60068-2-64/IEC 60068-2-64: 20 to 2 000 Hz, 1 (m/s
2
)
2
/Hz
Electromagnetic
compatibility (EMC)
Electromagnetic compatibility in accordance with all of the relevant requirements outlined in the
EN 61000 series and NAMUR Recommendation EMC (NE 21). Details are provided in the
Declaration of Conformity (www.endress.com/downloads).