User's Manual
Table Of Contents
- Table of contents
- Important document information
- Terms and abbreviations
- Registered trademarks
- Product life cycle
- Measuring principle
- Input
- Output
- Electrical connection
- Performance characteristics
- Installation
- Environment
- Process
- Mechanical construction
- Operability
- Certificates and approvals
- Ordering information
- Accessories
- Supplementary documentation
Micropilot FMR20
12 V. 5, Rev. 3, 20-12-2016 Endress+Hauser
FMR20 with RIA15 (incl. option for basic configuration FMR20)
The RIA15 remote display can be ordered together with the device.
Product structure, feature 620 "Accessory enclosed":
• Option R4 "Remote display RIA15 non-hazardous area, field housing"
• Option R5 "Remote display RIA15 with explosion protection approval, field housing"
Alternatively available as an accessory, for details see Technical Information TI01043K and
Operating Instructions BA01170K
The RIA15 process display unit is loop-powered and does not require any external power
supply.
The voltage drop to be taken into account is:
• ≤1 V in the standard version with 4 to 20 mA communication
• ≤1.9 V with HART communication
• additional 2.9 V if display light is used
Circuit diagram / Description
FMR20 connection, HART
communication and RIA15 without
backlight
Y
I
R
s
DC
1
2
3
LED
-
+
A0019567
4 FMR20 block diagram, HART with RIA15 process display unit
without light
1 Micropilot FMR20
2 Power supply
3 HART resistance
FMR20 connection, HART
communication and RIA15 with
backlight
Y
I
R
s
DC
1
2
3
LED
-
+
A0019568
5 FMR20 block diagram, HART with RIA15 process display unit
with light
1 Micropilot FMR20
2 Power supply
3 HART resistance