Radar level sensor Micropilot FMR20B
Brand: Endress+Hauser
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Radar level sensor Micropilot FMR20B
Brand: Endress+HauserSpecs at a Glance
Max. measurement distance:
40 mm/ 1-1/2": 20m (65.6 ft)
80 mm/ 3": 30m (98.4 ft)
80 mm/ 3": 30m (98.4 ft)
Main wetted parts:
PVDF, PBT/PC
Process temperature:
-40…+80°C
(-40…+176°F)
(-40…+176°F)
Accuracy:
+/- 2mm (0.08")
Process pressure / max. overpressure limit:
-1…3 bar
(-14,5…43 psi)
(-14,5…43 psi)
Field of application
The Micropilot FMR20B is a compact radar level instrument for simple, efficient measurement in liquids and bulk solids. Using W‑Band 80GHz radar technology, it delivers a narrow beam angle and stable performance, even in confined installations or tanks with internal structures. Guided setup wizards make installation and commissioning quick and intuitive. Bluetooth connectivity enables remote access through the SmartBlue app, while a status LED supports easy device identification in the field. Built from robust, corrosion‑resistant materials such as PVDF and PBT/PC, it withstands harsh environments common in water, wastewater, utilities, and basic solids handling. With a measuring range up to 30m (98ft), approvals for hazardous areas and drinking water, and compatibility with 4–20mA HART systems, the FMR20B is a reliable solution for everyday level measurement tasks.
Features
- Fast commissioning: Guided setup sequences simplify installation and configuration.
- Secure Bluetooth connectivity: Easy, reliable, and encrypted wireless access via SmartBlue app.
- Clear device identification: “It’s‑me” LED flashing makes locating and confirming the correct device effortless.
- Straightforward device selection: Clear segmentation and intuitive parameter structure support quick setup.
Specifications
Brand
Industry
- Water, Wastewater & Waste
- Power & Energy
- Mining, Minerals & Metals
Target Customer
- Waste water treatment plants
- Drinking water producers
- Mining & Minerals industry
- Metal industry
Product Family
- Micropilot
Continuous / Liquids
Characteristic / Application
- Water & Wastewater
- (e.g. basins / channels / rivers / dams / lift stations /
- storm water basins / pump control)
- Utility applications in all industries
- Storage tanks
Specialities
- Bluetooth® commissioning
- Operation and maintenance SmartBlue App
- Heartbeat Verification
Supply / Communication
- 2-wire (HART, 4…20 mA)
- Bluetooth® wireless technology and App
- (optional)
Frequency
- W-Band (~80 Ghz)
Accuracy
- Liquids: +/- 2 mm (0.08")
- Solids: +/- 4 mm (0.16")
Ambient temperature
- -40…+80°C
- (-40…+176°F)
Process temperature
- -40…+80°C
- (-40…+176°F)
Process pressure / max. overpressure limit
- -1…3 bar
- (-14,5…43 psi)
Main wetted parts
- PVDF, PBT/PC
Process connection
- Thread:
- G1", NPT1"; G1-1/2", NPT1-1/2"
- Flange:
- UNI flange 2“, 3“, 4“
- UNI slip on flange 3“, 4“, 6“
Max. measurement distance
- 30m (98.4 ft)
Communication
- 4...20 mA HART
- Bluetooth® wireless technology
Certificates / Approvals
- ATEX, C/US, EAC Ex, JPN Ex, KC Ex,
- INMETRO Ex, NEPSI Ex, UK Ex
Safety approvals
- Overfill protection WHG
Hygienic approvals
- EU Food Contact Material (EC) 1935/2004
- US Food Contact Material FDA CFR 21
Marine approval
- ABS, LR, BV, DNV
Drinking water approvals
- NSF/ANSI 61
Options
- Remote operation via SmartBlue App using
- Bluetooth®
- Remote HART indicator RIA15 in order
- structure
- Flooding protection tube
- Different mounting possibilities
Application limits
- Process temp. <-40°C (-40°F) or > 80°C (176°F) -> FMR62B
- Very aggressive media -> FMR62B
- Turbulences, stilling well and bypass -> FMR62B
- Strong foam and interfaces --> FMP5x
Continuous / Solids
Characteristic / Application
- For simple applications:
- Reliable, non-contact measurement of levels
- in silos or storage tanks for bulk solids
Specialities
- Bluetooth® commissioning
- Operation and maintenance SmartBlue App
- Heartbeat Verification
Supply / Communication
- 2-wire (HART, 4…20 mA)
- Bluetooth® wireless technology and App
- (optional)
Frequency
- W-Band (~80 Ghz)
Antenna
- 40 mm/ 1-1/2"
- 80 mm/ 3"
Accuracy
- +/- 2mm (0.08")
Ambient temperature
- -40…+80°C
- (-40…+176°F)
Process temperature
- -40…+80°C
- (-40…+176°F)
Process pressure / max. overpressure limit
- -1…3 bar
- (-14,5…43 psi)
Main wetted parts
- PVDF, PBT/PC
Process connection
- Thread:
- G1", NPT1"; G1-1/2", NPT1-1/2"
- Flange:
- UNI flange 2“, 3“, 4“
- UNI slip on flange: 3“, 4“, 6“
Max. measurement distance
- 40 mm/ 1-1/2": 20m (65.6 ft)
- 80 mm/ 3": 30m (98.4 ft)
Communication
- 4...20 mA HART
- Bluetooth® wireless technology
Certificates / Approvals
- ATEX, C/US, EAC Ex, JPN Ex, KC Ex,
- INMETRO Ex, NEPSI Ex, UK Ex
Safety approvals
- Overfill protection WHG
Hygienic approvals
- EU Food Contact Material (EC) 1935/2004
- US Food Contact Material FDA CFR 21
Marine approval
- ABS, LR, BV, DNV
Drinking water approvals
- NSF/ANSI 61
Options
- Remote operation via SmartBlue App using Bluetooth®
- Remote HART indicator RIA15 in order structure
- Flooding protection tube
- Different mounting possibilities
Application limits
- DK < 1.6
- Reduction of the max. possible measuring range due to:
- Media with poor reflective properties cone of repose
- extremely loose surface of bulk solids, e.g. bulk solids with a
- low bulk density during pneumatic filling
- buildup, especially of moist products.
- Alternative for these applications: FMR67B
