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Endress+Hauser
Endress+Hauser Waterpilot FMX21 Replacement Probe
Quote on request
No online payment · add lines to RFQ BOM
FMX21 replacement for legacy Waterpilot hydrostatic probes; to 200 m H2O; HART. RFQ code.
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 FMX17 — no public FMX17 product page; OEM current Waterpilot hydrostatic probe is FMX21 (predecessors FMX160/FMX167 discontinued)
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 replacements for discontinued Waterpilot hydrostatic predecessors where the current OEM probe is Endress+Hauser Waterpilot FMX21—ceramic cell, HART, ranges to ~200 m H₂O.
Key advantages
- Successor — Current Waterpilot hydrostatic probe is FMX21
- Accuracy — ±0.2% / ±0.1% Platinum
- Range — 100 mbar…20 bar
- Output — 4–20 mA HART 6.0
- Kits — Fresh / waste / saltwater diameters
Typical applications
- Replacing FMX160/FMX167-class probes.
- Standardizing sites on FMX21.
- Spare-probe stocking.
Selection guide
- Map legacy order code → FMX21
- Keep same diameter/medium
- Cable reuse vs new cable
- Approvals parity
Common mistakes
- Dropping in FMX21 without checking process connection/cable adapter.
- Assuming identical Ex codes without verification.
- Wrong medium kit vs the old probe.
When to RFQ / what to tell us
- Legacy tag/order code, medium, cable.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 33983 |
| 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: Replace older Waterpilot? A: FMX21 is the current OEM hydrostatic Waterpilot probe—confirm mapping from your legacy code.
Q: Still ceramic? A: Yes — oil-free ceramic measuring cell.
Q: What should I send for a quote? A: Legacy code/medium/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 FMX17 — no public FMX17 product page; OEM current Waterpilot hydrostatic probe is FMX21 (predecessors FMX160/FMX167 discontinued) |
| 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 |