Installation Instructions

Micropilot FMR20 Modbus RS485
2 Endress+Hauser
Table of contents
Important document information ............... 3
Symbols used ................................ 3
Terms and abbreviations ..................... 4
Registered trademarks ....................... 4
Product life cycle ............................ 5
Engineering ................................. 5
Procurement ................................ 5
Installation ................................. 5
Commissioning ............................... 5
Operation .................................. 5
Maintenance ................................ 5
Retirement .................................. 5
Measuring principle ......................... 6
Input ...................................... 6
Output .................................... 6
Input ..................................... 7
Measured variable ............................. 7
Measuring range .............................. 7
Operating frequency ........................... 7
Transmission power ............................ 7
Output ................................... 7
Digital output ................................ 7
Signal on alarm ............................... 8
Linearization ................................ 8
Protocol-specific data, Modbus ................. 8
Modbus settings .............................. 8
Measured variables via Modbus protocol .............. 8
Electrical connection ......................... 9
Cable assignment ............................. 9
Supply voltage ............................... 9
Power consumption ............................ 9
Starting time ............................... 11
Power supply failure .......................... 11
Connecting the device ......................... 11
Cable specification ............................ 13
Overvoltage protection ......................... 13
Performance characteristics .................. 13
Reference operating conditions ................... 13
Maximum measured error ....................... 13
Measured value resolution ...................... 13
Response time .............................. 14
Influence of ambient temperature ................. 14
Installation ............................... 14
Installation conditions ......................... 14
Environment .............................. 20
Ambient temperature range ..................... 20
Storage temperature .......................... 20
Climate class ............................... 20
Operating altitude as per IEC 61010-1 Ed.3 ........... 20
Degree of protection .......................... 20
Vibration resistance ........................... 20
Electromagnetic compatibility (EMC) ............... 20
Process .................................. 21
Process temperature, process pressure ............... 21
Dielectric constant ............................ 21
Mechanical construction .................... 22
Dimensions ................................ 22
Weight ................................... 26
Materials .................................. 27
Connecting cable ............................. 27
Operability ............................... 27
Operating concept ............................ 27
Operation via Bluetooth® wireless technology .......... 27
Remote operation via Modbus protocol .............. 28
Certificates and approvals ................... 29
CE mark ................................... 29
RoHS ..................................... 29
EAC conformity .............................. 29
RCM-Tick marking ............................ 29
Approvals ................................. 29
Explosion-protected smartphones and tablets .......... 29
Pressure equipment with allowable pressure
≤ 200 bar (2 900 psi) .......................... 29
EN 302729-1/2 radio standard ................... 29
FCC / Industry Canada ......................... 30
Other standards and guidelines ................... 31
Ordering information ....................... 32
Accessories ............................... 32
Device-specific accessories ...................... 32
Documentation ............................ 51
Brief Operating Instructions (KA) .................. 51
Operating Instructions (BA) ..................... 51
Safety Instructions (XA) ........................ 51