Specs at a glance
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Accuracy
0.2%
0.1% (optional) -
Process temperature
-10°C...70°C
(14°F...158°F)
Diameter 29 mm (1.14"): 0°C...50°C
(32°F...122°F) -
Pressure measuring range
100 mbar...20 bar
(1.5 psi...300 psi) -
Main wetted parts
Diameter 22 mm and 42 mm: Seal, 316L, Ceramic
Diameter 29 mm: Seal, PPS, Polyolefin, Ceramic
Extension cable: PE, PUR, FEP -
Max. measurement distance
200 m H2O
(656 ft H2O) -
Measuring cell
100mbar...20bar
(1.5psi...300psi)
Field of application
The Waterpilot FMX21 transmitter with capacitive, oil-free ceramic measuring cell is typically used in the process and environmental applications for hydrostatic level measurement. With HART output, the measuring ranges can be freely adjusted and a density-compensated level measurement can be activated. It is certified for drinking water and offers integrated temperature measurement. Versions for applications in wastewaters and sludges or usage in salt water are also available.
Three different versions for drinking water, wastewater and sewage, saltwater.
Process connections: Suspension clamp, cable gland
Temperature: –10 to +70°C (14 to 158°F)
Measuring range: 0 to 20bar / 200m H20 (0 to 300psi / 600ft H2O)
Accuracy: ±0.2%, "Platinum" ±0.1%
International explosion protection certificates, marine approvals, drinking water approval
Benefits
Robust overload-resistant high purity ceramic sensor (99.9% Al2O3)
Flexible scaling of 4 to 20mA with superimposed HART 6.0 output
Highest level accuracy using temperature compensated density correction
Simultaneous measurement of level and temperature with optionally integrated Pt100 temperature sensor
Extensive range of accessories provides complete measuring point solutions
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Climate proofed sensor thanks to completely potted electronics and 2-filter pressure compensation system
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Small outer diameter of 22mm (0.87") version suitable for drinking water applications and for use in bore holes and wells with small diameters
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| FLEX selections | Technical excellence | Simplicity |
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Most downloaded
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Technical Information (TI)
Waterpilot FMX21
English version - 09/2022
Hydrostatic level measurement
EN 12/09/202208/06/201829/07/201610/07/201528/10/2013Language:
English
Version:
12/09/2022
File size:
1.7 MB
File name:
TI00431PEN_1822-00.pdf
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Manufacturer Declaration
Product family: Cerabar, Cerabar M, Cerabar S, Ceraphant, Deltabar, Deltabar M, Deltabar S, Deltapilot M, Fieldgate, Gammapilot, Lev elflex, Liquicap M, Liquicap T, Liquiphant, Liquiphant FailSafe, Liquiphant M, Liquipoint, Liquipoint T, Liquitrend, Micropilot, Mic ropilot S, Minicap, Fermentation monitor, Prosonic M, Prosonic S, Prosonic T, Solicap M, Solicap S, Soliphant M, Soliphant T, Spare parts level, Strahlenschutzbehälter, System & Gauging, Tankvision, Waterpilot
English version - 03/2025
Product root: FDU90-, FDU91-, FDU91F-, FDU92-, FDU93-, FDU95-, FHX40-, FHX50-, FHX50B-, FMB50-, FMB51-, FMB52-, FMB53-, FMD71-, FMD7 2-, FMD77-, FMD78-, FMG50-, FMI21-, FMI51-, FMI52-, FMP50-, FMP51-, FMP52-, FMP53-, FMP54-, FMP55-, FMP56-, FMP57-, FMR10-, FMR10B-, FMR20-, FMR20B-, FMR30B-, FMR43-, FMR50-, FMR51-, FMR52-, FMR53-, FMR532-, FMR54-, FMR540-, FMR56-, FMR57-, FMR60B-, FMR62B-, FMR63 B-, FMR66B-, FMR67B-, FMU30-, FMU40-, FMU41-, FMU42-, FMU44-, FMX11-, FMX21-, FTC260-, FTC262-, FTI51-, FTI52-, FTI55-, FTI56-, FTI7 7-, FTL31-, FTL33-, FTL41-, FTL43-, FTL50H-, FTL51B-, FTL51H-, FTL62-, FTL63-, FTL64-, FTL80-, FTL81-, FTL85-, FTM20-, FTM21-, FTM50 -, FTM51-, FTM52-, FTW23-, FTW31-, FTW32-, FTW33-, FWR30-, NMR81-, NMR84-, NMS80-, NMS81-, NMS83-, NMT532-, NMT539-
EN 14/03/2025Language:
English
Version:
14/03/2025
File size:
623.3 KB
File name:
HE_02099_01.25.pdf
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80 documents
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Technical Information (TI)
Waterpilot FMX21
Hydrostatic level measurement
EN 12/09/202208/06/201829/07/201610/07/201528/10/2013Language:
English
Version:
12/09/2022
File size:
1.7 MB
File name:
TI00431PEN_1822-00.pdf
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-
-
Operating Instruction (BA)
Waterpilot FMX21
Hydrostatic level measurement
EN 28/11/202208/06/201807/11/201629/06/201610/07/2015Language:
English
Version:
28/11/2022
File size:
2.5 MB
File name:
BA00380PEN_1922-00.pdf
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-
-
Operating Instruction (BA)
Waterpilot FMX21
Hydrostatic level measurement
EN 28/11/202229/06/2016Language:
English
Version:
28/11/2022
File size:
1.1 MB
File name:
BA01605PEN_0222-00.pdf
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Short Instruction (KA)
KA Waterpilot FMX21 HART
Hydrostatic level measurement
EN 01/11/2022Language:
English
Version:
01/11/2022
File size:
357.9 KB
File name:
KA01631PEN_0122-00.pdf
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Short Instruction (KA)
Waterpilot FMX21
Hydrostatic level measurement
EN 28/11/202208/06/201807/11/201629/06/201617/09/2015Language:
English
Version:
28/11/2022
File size:
1.5 MB
File name:
KA01189PEN_0622-00.pdf
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Short Instruction (KA)
KA Waterpilot FMX21
Hydrostatic level measurement
EN 01/11/2022Language:
English
Version:
01/11/2022
File size:
357.3 KB
File name:
KA01632PEN_0122-00.pdf
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Short Instruction (KA)
Waterpilot FMX21
Hydrostatic level measurement
EN 28/11/202229/06/2016Language:
English
Version:
28/11/2022
File size:
965.6 KB
File name:
KA01244PEN_0222-00.pdf
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Installation Instructions (EA)
Suspension clamp
Waterpilot
EN 25/01/2023Language:
English
Version:
25/01/2023
File size:
394.2 KB
File name:
EA01464PEN_0122-00.pdf
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Installation Instructions (EA)
Pressure adapter Installation instruction
Deltapilot M, Deltapilot S, Waterpilot
EN 12/04/2012Language:
English
Version:
12/04/2012
File size:
195.4 KB
File name:
EA0028PA2_0110.pdf
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Ex Safety Instruction (XA)
Safety Instruction Waterpilot FMX21
CSA Control Drawing
960008976 ALanguage:
English
Version:
19/04/2017
File size:
440 KB
File name:
XA01634PEN_0117.pdf
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