Installation Instructions

Micropilot FMR20 Modbus RS485
4 Endress+Hauser
Terms and abbreviations
BA
Document type "Operating Instructions"
KA
Document type "Brief Operating Instructions"
TI
Document type "Technical Information"
SD
Document type "Special Documentation"
XA
Document type "Safety Instructions"
PN
Nominal pressure
MWP
MWP (Maximum working pressure/max. process pressure)
The MWP can also be found on the nameplate.
ToF
Time of Flight
ε
r
(Dk value)
Relative dielectric constant
Operating tool
The term "operating tool" is used in place of the following operating software:
SmartBlue (app), for operation using an Android or iOS smartphone or tablet
RTU
Remote Transmit Unit
BD
Blocking Distance; no signals are analyzed within the BD.
PLC
Programmable logic controller (PLC)
CDI
Common Data Interface
Registered trademarks
Modbus®
Registered trademark of SCHNEIDER AUTOMATION, INC.
Apple®
Apple, the Apple logo, iPhone, and iPod touch are trademarks of Apple Inc., registered in the U.S.
and other countries. App Store is a service mark of Apple Inc.
Android®
Android, Google Play and the Google Play logo are trademarks of Google Inc.
Bluetooth®
The Bluetooth® word mark and logos are registered trademarks owned by the Bluetooth SIG, Inc. and
any use of such marks by Endress+Hauser is under license. Other trademarks and trade names are
those of their respective owners.