 
                  Specs at a glance
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                              Accuracy+/- 2mm (0.08") 
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                              Process temperature-40…+80°C 
 (-40…+176°F)
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                              Process pressure / max. overpressure limit-1…3 bar 
 (-14,5…43 psi)
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                              Max. measurement distance40 mm/ 1-1/2": 20m (65.6 ft) 
 80 mm/ 3": 30m (98.4 ft)
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                              Main wetted partsPVDF, PBT/PC 
Field of application
The Micropilot FMR20B offers continuous non-contact level measurement with 80 GHz technology. Guiding wizards enable easy handling for installation, commissioning and operation. Efficiency through reduced downtime can be realized with on-demand process verification and device diagnostics, thanks to Heartbeat Technology. The compact design of the device also allows use in narrow installation conditions.
The Micropilot FMR20B is a free space radar device with a measuring range of up to 30m (98ft) for liquid and solid applications in the Water & Wastewater, Mining, Minerals & Metals and Food & Beverage industries, as well as for utility applications across all industries:
- Open baisins 
- River monitoring 
- Sewer management 
- Pump station / lift station 
- Open channel flow 
- IBC and storage tanks 
- Silos 
- Stockpiles 
- Pneumatic conveying 
Benefits
- Fast commissioning and operation thanks to guided setup sequences (wizards) 
- Bluetooth connectivity enables easy, reliable and encrypted wireless remote access 
- Device identification during Bluetooth connection thanks to “It’s me-function” (LED flashing) and status indication via LED 
- Simple device selection thanks to clear segmentation and easy configuration 
- Heartbeat Technology allows on-demand verification and diagnostics guided through the wizard without process interruption 
Videos
Lean selection
- 
        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
 
                              - 
        Standard products 
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
- 
        Specialized products 
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity | 
|---|---|---|
| 
 Fundamental selection Meet your basic measurement needs | Technical excellence | Simplicity | 
| 
 Lean selection Handle your core processes easily | Technical excellence | Simplicity | 
| 
 Extended selection Optimize your processes with innovative technologies | Technical excellence | Simplicity | 
| 
 Xpert selection Master your most challenging applications | Technical excellence | Simplicity Variable | 
Predecessor
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                                                    Technical Information (TI)
 TI Micropilot FMR20BEnglish version - 12/2024 Free-space radar HART EN 10/12/202425/09/2024Language: English Version: 10/12/2024 File size: 2.4 MB File name: TI01796FEN_0324-00.pdf 
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                                                    Operating Instruction (BA)
 BA Micropilot FMR20BEnglish version - 09/2024 Free-space radar HART EN 25/09/2024Language: English Version: 25/09/2024 File size: 2.6 MB File name: BA02364FEN_0224-00.pdf 
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                                                            Technical Information (TI)
 TI Micropilot FMR20BFree-space radar 
 HARTEN 10/12/202425/09/2024Language: English Version: 10/12/2024 File size: 2.4 MB File name: TI01796FEN_0324-00.pdf 
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                                                            Operating Instruction (BA)
 BA Micropilot FMR20BFree-space radar 
 HARTEN 25/09/2024Language: English Version: 25/09/2024 File size: 2.6 MB File name: BA02364FEN_0224-00.pdf 
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                                                            Device Parameter (GP)
 GP Micropilot FMR20B, FMR30BRadar 
 HARTEN 30/07/202530/09/2024Language: English Version: 30/07/2025 File size: 1.3 MB File name: GP01229FEN_0225-00.pdf 
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                                                            Short Instruction (KA)
 KA Micropilot FMR20BFree-space radar 
 HARTEN 25/09/2024Language: English Version: 25/09/2024 File size: 1.2 MB File name: KA01723FEN_0124-00.pdf 
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                                                            Installation Instructions (EA)
 EA UNI DN 80/80 (3") slip-on flange, 80 mm DN 100/100 (4") antenna, 80 mm DN 150/150 (6") antenna, 80 mm antennaMicropilot FMR20B, FMR30B EN 17/10/2025Language: English Version: 17/10/2025 File size: 1003.1 KB File name: EA01719FEN_01.25-00.pdf 
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                                                            Installation Instructions (EA)
 EA Counter nut G 1", sealMicropilot FMR10B, FMR20B EN 28/02/2025Language: English Version: 28/02/2025 File size: 477.1 KB File name: EA01593FEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA Micropilot FMR20BControl Drawing IS 
 Class I, II, III, Div. 1, Groups A-D, F, G
 AEx/Ex ia IIC Ga, AEx/Ex ia IIIB Da
 Class I, Div. 2, Groups A-DEN 07/07/2025Language: English Version: 07/07/2025 File size: 403.9 KB File name: XA03522FEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA Micropilot FMR20B0Ex ia IIC T4 Ga X 
 Ex ia IIIB T135 °C Da XEN 25/09/2025Language: English Version: 25/09/2025 File size: 399.1 KB File name: XA03621FEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA Micropilot FMR20BII 1 G Ex ia IIC T4...T1 Ga 
 II 1 D Ex ia IIIB T135 °C DaLanguage: English Version: 24/09/2025 File size: 408.6 KB File name: XA03631FEN_0125-00.pdf 
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                                                            Ex Safety Instruction (XA)
 XA Micropilot FMR20BATEX, IECEx: 
 Ex ia IIC T4 Ga
 Ex ia IIIB T135 °C DaEN 07/07/2025Language: English Version: 07/07/2025 File size: 393 KB File name: XA03510FEN_0125-00.pdf 
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