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Endress+Hauser
Endress+Hauser Waterpilot FMX21 Hydrostatic Probe
Quote on request
No online payment · add lines to RFQ BOM
FMX21 ceramic hydrostatic: to 20 bar/~200 m H2O; ±0.2%/±0.1%; 4–20 mA HART. RFQ version.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
Reference ±0.2%; PLATINUM ±0.1%
Approvals
Drinking water KTW/NSF/ACS; ATEX/FM/CSA; marine GL/ABS/BV/DNV
Type
Hydrostatic level probe with oil-free ceramic measuring cell (Waterpilot FMX21)
Oem Note
Pipeline label FMX20 — no public FMX20 page; OEM successor FMX21 documented
Pressure Range
100 mbar…20 bar (1.5…300 psi); max distance ~200 m H2O
Process Temperature
−10…+70 °C (29 mm saltwater version 0…+50 °C)
Fits oil-free ceramic hydrostatic level where you need an Endress+Hauser Waterpilot FMX21—100 mbar…20 bar (~200 m H₂O), ±0.2% reference (±0.1% Platinum), and 4–20 mA HART.
Key advantages
- Cell — Oil-free ceramic measuring cell
- Accuracy — Reference ±0.2%; Platinum ±0.1%
- Range — 100 mbar…20 bar; max ~200 m H₂O
- Output — 4–20 mA HART 6.0; optional Pt100
- Process T — −10…+70 °C (saltwater 29 mm: 0…+50 °C)
Typical applications
- Freshwater borehole level.
- Wastewater wet-well probing.
- Saltwater intake level (29 mm version).
Selection guide
- Probe diameter / medium kit
- Accuracy option — Reference vs Platinum
- Cable length / Ex
- Pt100 temperature option
Common mistakes
- Ordering wrong diameter for sludge vs drinking water.
- Ignoring cable abrasion in turbulent wells.
- Skipping Ex codes when the area requires them.
When to RFQ / what to tell us
- Diameter/range, cable, approvals.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 33977 |
| Brand | Endress+Hauser |
| Model | Waterpilot FMX21 |
| Product type | Hydrostatic Level Transmitter |
| Type | Hydrostatic level probe with oil-free ceramic measuring cell (Waterpilot FMX21) |
| Accuracy | Reference ±0.2%; PLATINUM ±0.1% |
| Pressure range | 100 mbar…20 bar (1.5…300 psi); max distance ~200 m H2O |
| Process temperature | −10…+70 °C (29 mm saltwater version 0…+50 °C) |
| Output | 4–20 mA with HART 6.0; optional integrated Pt100 temperature |
| Versions | 22 mm drinking water; 42 mm wastewater; 29 mm saltwater/marine |
| Wetted parts | 316L / ceramic / seals; plastic insulation on saltwater version; PE/PUR/FEP cable |
| Approvals | Drinking water KTW/NSF/ACS; ATEX/FM/CSA; marine GL/ABS/BV/DNV |
Documents
FAQ
Q: Max depth class? A: About 200 m H₂O (20 bar class).
Q: Output? A: 4–20 mA with HART 6.0.
Q: What should I send for a quote? A: Version/cable, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | Reference ±0.2%; PLATINUM ±0.1% |
| Approvals | Drinking water KTW/NSF/ACS; ATEX/FM/CSA; marine GL/ABS/BV/DNV |
| Type | Hydrostatic level probe with oil-free ceramic measuring cell (Waterpilot FMX21) |
| Oem Note | Pipeline label FMX20 — no public FMX20 page; OEM successor FMX21 documented |
| Pressure Range | 100 mbar…20 bar (1.5…300 psi); max distance ~200 m H2O |
| Process Temperature | −10…+70 °C (29 mm saltwater version 0…+50 °C) |
| Versions | 22 mm drinking water; 42 mm wastewater; 29 mm saltwater/marine |
| Wetted Parts | 316L / ceramic / seals; plastic insulation on saltwater version; PE/PUR/FEP cable |
| Application | Wells/boreholes, tanks, wastewater, ballast water, environmental monitoring |
| Document | TI00431PEN Technical Information + BA00380PEN Operating Instructions |
| Design | Potted electronics; 2-filter pressure compensation; overload-resistant ceramic |