5 units in stockEndress+HauserLevel Sensors & Transmitters
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1 / 9Micropilot FMR51 non-contact radar level transmitter with NPT½ threaded connection, made 2017 (China) — new, in Barmaan stock. Ex ia version for Zone 0/1, 4–20 mA HART, ±2 mm accuracy. The photos show the actual unit in our warehouse.
The Endress+Hauser Micropilot FMR51 radar level transmitter is one of the most widely used free-space radars for continuous, non-contact level measurement of liquids. The unit offered here was built in June 2017 at the Endress+Hauser factory in Suzhou, China, is entirely new, and is held physically in Barmaan's warehouse; every "Barmaan stock" photograph on this page is of this specific device, and its nameplate, showing order code FMR51-1CQL5/0 and the build date 2017-06, is legible. This unit is supplied with an NPT½ threaded connection (in the photographs it is resting on a display flange).
Free-space radar operates in the K band (around 26 GHz): a microwave pulse is emitted from the antenna, reflects off the liquid surface, and the distance is derived from the signal's time of flight. Because there is no contact with the medium, the measurement is independent of temperature, pressure, density, and any gases or vapors above the surface. Endress+Hauser's Multi-Echo Tracking follows the true level echo even in the presence of interference echoes.
Per official datasheet TI01040F, the maximum measured error of the standard version is only ±2 mm, and the measuring range extends to 40 m (or to 70 m with the Advanced Dynamics software package). The maximum working pressure of this unit is 275 psi (about 19 bar), the maximum process temperature is +150 °C, and the wetted parts are 316L, PTFE and FKM.
This device is the intrinsically safe (Ex ia) version in class Ex ia IIC T6 Ga for direct installation in Zone 0/1; it has a 10.4 to 30 V DC two-wire supply and a 4–20 mA HART output. Commissioning is performed through a step-by-step menu on the local display or over HART, and interference-echo suppression (mapping) takes only a few minutes.
The Micropilot FMR51 is a dependable choice for storage and process vessels in the oil, gas, petrochemical, chemical, water and wastewater industries — particularly where the vessel nozzle is small and threaded.
Barmaan supplies industrial instrumentation; this item is offered with a guarantee of authenticity, the option to inspect it in person at the warehouse, selection consultancy, and installation and commissioning support. To obtain pricing, submit a proforma invoice request from this page.
| Attribute | Value |
|---|---|
| General | |
| Manufacturer | Endress+Hauser (Made in China — Suzhou) |
| Model / Order code | Micropilot FMR51 — FMR51-1CQL5/0 |
| Device type | Non-contact Radar Level Transmitter (free-space radar) |
| Measuring principle | K-band FMCW radar, ~26 GHz |
| Year of manufacture | 2017-06 |
| Performance & accuracy | |
| Max. measuring range (family) | 40 m — 70 m with Advanced dynamics package |
| Maximum measured error | ±2 mm (standard version, per TI01040F) |
| Process conditions & connection | |
| Process connection | Threaded NPT ½ |
| Max. working pressure (MWP) | 275 psi (≈19 bar) — per nameplate |
| Max. process temperature | +150 °C (Tp max, per nameplate) |
| Ambient temperature | −40…+80 °C |
| Construction & materials | |
| Wetted materials | 316L / PTFE / FKM (Viton) seal |
| Power & output | |
| Output / Communication | 4…20 mA HART, 2-wire (passive) |
| Supply voltage (this unit) | 10.4…30 V DC (Ex ia version) |
| FW / Dev. revision | FW 01.01.01 — Dev.Rev. 2 |
| Approvals & safety | |
| Ex approval | Ex ia IIC T6 Ga (per nameplate) |
| Condition & availability | |
| Condition | New / نو — Barmaan stock |
| Model code | Description | Measuring range |
|---|---|---|
| 40 mm (1½") | FMR51 — 40 mm horn23° beam angle — small nozzles and threaded connections | up to 25 m |
| 50 mm (2") | FMR51 — 50 mm horn18° beam angle | up to 40 m |
| 80 mm (3") | FMR51 — 80 mm horn10° beam angle — more focused signal | up to 60 m |
| 100 mm (4") | FMR51 — 100 mm horn8° beam angle — longest range of the family | up to 70 m |
All listed models can be supplied with your required certification, output protocol and process connection — contact us or request a quote for exact model-code selection.
This device is entirely new (new / unused), built in June 2017 (Date: 2017-06) at the Endress+Hauser factory in Suzhou, China, and is currently held physically in Barmaan's warehouse. The photographs on this page — including the device nameplate with order code FMR51-1CQL5/0 — were all taken of this very item.
Per the nameplate, the process connection of this unit is an NPT½ thread (in the photographs the device is resting on a display flange/stand, but the device's own connection is the NPT½ thread). The maximum working pressure (MWP) is 275 psi (about 19 bar) and the maximum process temperature is +150 °C. Wetted parts: 316L, PTFE and an FKM O-ring.
Both are the same Micropilot FMR51 generation and family (free-space radar at ~26 GHz); the difference is the configuration. This unit has an NPT½ threaded connection and was made in China (2017), while Barmaan's other unit has a DN125 PN16 flange and was made in Germany (2019). Both have a 4–20 mA HART output and are the Ex ia version. The right choice depends on your vessel's nozzle — Barmaan's engineers will advise.
Yes. Per its nameplate this unit is the intrinsically safe version in class Ex ia IIC T6 Ga and is suitable for installation in Zone 0/1. Its supply is 10.4 to 30 V DC (two-wire) and it must be powered through an intrinsically safe barrier or isolator. The safety documentation (XA) is delivered with the item.
You can submit a proforma invoice request from this page; Barmaan's engineers will confirm the price and delivery terms within one working day at most. The item is in stock, so once the order is confirmed it is ready for collection or shipment with no overseas procurement lead time. Authenticity is guaranteed, and you are welcome to inspect the device in person at the warehouse.
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