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The Endress+Hauser Waterpilot FMX21 Hydrostatic Level Probe
Order #: Endress+Hauser Waterpilot FMX21 Hydrostatic Level Probe
The Waterpilot FMX21 HART transmitter with capacitive, oil-free ceramic measuring cell is typically used in the process and environmental applications for hydrostatic level measurement. 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. A robust design for applications in wastewaters and sludges or a metal-free version for usage in salt water is also available.
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Product Highlights
- 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
- Climate proofed sensor thanks to completely potted electronics and 2-filter pressure compensation system
- Small outer diameter of 22mm (0.87") version suitable for drinking water applications and for use in bore holes and wells with small diameters
Field of Application
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
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| Continuous/Liquids | |
|---|---|
| Measuring Principle | Hydrostatic |
| Characteristic / Application | Cable probe for hydrostatic level measurement, with ceramic cell Diameter = 22mm: General applications, Drinking Water Diameter = 42mm: Wastewater applications Diameter = 29mm: Salt water applications Communication via HART |
| Supply / Communication | 10.5 ...35V DC |
| Accuracy | 0.2% Option: 0.1% |
| Long term stability | 0.1% of URL/year |
| Ambient temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) |
| Process temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) |
| Process pressure absolute / max. overpressure limit | 40bar (600psi) |
| Pressure measuring range | 100mbar...20bar (1.5psi...300psi) |
| Main wetted parts | Diameter 22mm and 42mm: Seal, 316L, Ceramic Diameter 29mm: Seal, PPS, Polyolefin, Ceramic Extension cable: PE, PUR, FEP |
| Process connection | Suspension clamp Cable mounting screws |
| Max. measurement distance | 200m H2O (656 ft H2O) |
| Output | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, IEC Ex, NEPSI, INMETRO NSF/KTW/ACS Marine |
| Options | Absolute measuring cell Integrated temperature sensor Pt100, 4-wire customer specific adjustment customer specific cable marking |
| Specialities | Automatic density compensation Version w/o metal parts in contact to process |
| Measuring cell: ceramics | |
| Pressure | |
|---|---|
| Measuring Principle | Hydrostatic |
| Characteristic | Cable probe for hydrostatic level measurement, with ceramic cell Diameter = 22mm: General applications, Drinking Water Diameter = 42mm: Wastewater applications Diameter = 29mm: Salt water applications Communication via HART |
| Supply voltage | 10.5 ...35V DC |
| Reference Accuracy | 0.2% Option: 0.1% |
| Long term stability | 0.1% of URL/year |
| Process temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) |
| Ambient temperature | -10°C...70°C (14°F...158°F) Diameter 29mm (1.14"): 0°C...50°C (32°F...122°F) |
| Measuring cell | 100mbar...20bar (1.5psi...300psi) |
| Max. overpressure limit | 40 bar (580psi) Diameter = 29mm: 25 bar (362psi) |
| Process connection | Suspension clamp Cable mounting screws |
| Output | 4...20 mA HART |
| Certificates / Approvals | ATEX, FM, CSA, CSA C/US, IEC Ex, TIIS, INMETRO, NEPSI GL/ ABS/ LR/ BV/ DNV Marine NSF/ KTW/ ACS drinking water |
| Options | Absolute measuring cell Integrated temperature sensor Pt100, 4-wire Customer specific adjustment Customer specific cable marking |
