Installation Instructions
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
- CE mark
- RoHS
- EAC conformity
- RCM-Tick marking
- Ex approval
- Explosion-protected smartphones and tablets
- Pressure equipment with allowable pressure ≤ 200 bar (2
- EN 302729-1/2 radio standard
- FCC / Industry Canada
- Japanese Radio Law and Japanese Telecommunications Business Law Compliance
- Other standards and guidelines
- Ordering information
- Accessories
- Supplementary documentation
Micropilot FMR20
Endress+Hauser 21
Free-field measurement with flooding protection tube
The flooding protection tube guarantees a definitive analysis of the maximum level even in the event
that the sensor is completely flooded.
In free-field installations and / or in applications where there is a risk of flooding, the flooding
protection tube must be used.
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3
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A0031093
16 Function of flooding protection tube
1 Air pocket
2 O-ring (EPDM) seal
3 Blocking distance
4 Max. Level
Flooding protection tube 40 mm (1.5 in) Antenna, metallized PBT-PC:
For use with devices in product structure, feature 100 "Process connection front", option WFE
"Thread ISO228 G1-1/2".
The flooding protection tube can be ordered with the device. Product structure, feature 620
"Accessory enclosed", option R7 "Flooding protection tube, metallized PBT-PC suitable for
40 mm (1.5 in) antenna with G1-1/2" process connection on front".
Alternatively available as an accessory; order number 71325090.
Flooding protection tube 80 mm (3 in) Antenna, metallized PBT-PC:
For use with devices in product structure, feature 100 "Process connection on front", option XR0
"Customer mounting device without flange".
The flooding protection tube can be ordered with the device. Product structure, feature 620
"Accessory enclosed", option R8 "Flooding protection tube, metallized PBT-PC suitable for
80 mm (3 in) antenna.
Alternatively available as an accessory; order number 71327051.