The Endress+Hauser Levelflex FMP53 is engineered for continuous level measurement in food, dairy, and biopharmaceutical sanitary tanks requiring CIP/SIP cleaning processes (-20 to +150°C, vacuum to 16 bar, Ra ≤ 0.38 µm surface finish).
We provide direct factory quotes, FDA/3-A compliant documentation, and technical sizing for sanitary vessels within 24 hours.
Standard industrial radar transmitters with threaded fittings or rough surface finishes retain media residue, causing bacterial growth that fails FDA/GMP quality audits. Furthermore, non-contact optical or ultrasonic sensors frequently trip false level alarms caused by CIP steam clouds or mixing foam. Levelflex FMP53 solves these sanitary processing failure modes:
The table below details the mechanical, thermal, and sanitary compliance boundaries required by pharmaceutical and food processing engineers when specifying FMP53 level transmitters.
| Technical Parameter | Specification Value | Engineering Selection Note |
|---|---|---|
| Measuring Principle | Guided Wave Radar (Time-of-Flight) | Microwave pulse guided along sanitary rod probe |
| Measurement Precision | ±2 mm (±0.08 in) | High accuracy regardless of liquid density changes |
| Process Temperature Range | -20 to +150 °C (-4 to +302 °F) | Withstands continuous 150°C SIP steam sterilization |
| Process Pressure Rating | Vacuum to 16 bar (232 psi) | Suitable for pressurized fermentation reactors |
| Surface Roughness (Ra) | Ra ≤ 0.38 µm (15 µin) / Ra ≤ 0.76 µm | Electropolished stainless steel wetted surfaces |
| Min. Dielectric Constant | DK > 1.6 | Measures purified water, milk, syrups, & culture broth |
| Max Rod Measuring Range | Rod Probe: Up to 6 m (20 ft) | Custom cut-to-length rod lengths available |
| Wetted Seal Materials | 316L (1.4435), 304, PEEK (FDA/USP VI) | Zero gap design prevents bacterial traps |
| Hygienic Process Connections | Tri-Clamp, DIN 11851, DIN 11864-1, Varivent N, SMS | Direct fit for standard sanitary tank nozzles |
| Hygienic Approvals | 3-A, EHEDG, ASME BPE, CoC ASME-BPE | Accompanied by EN 10204-3.1 inspection certificates |
| Safety Integrity & Output | SIL3 (IEC 61508) / 4–20 mA HART, PROFIBUS PA, FF | Wireless Bluetooth via SmartBlue App |
Installing standard industrial transmitters like FMP50 in sterile biopharmaceutical or food production lines leads to audit rejections and batch spoilage. The matrix below highlights why FMP53 is necessary for sanitary compliance.
| Selection Parameter | Levelflex FMP53 (Hygienic / Life Science) | Levelflex FMP50 (Standard Industrial Liquid) |
|---|---|---|
| Hygienic Certifications | 3-A, EHEDG, ASME BPE, USP Class VI | Standard Utility (No Sanitary Rating) |
| Surface Finish Quality | Ra ≤ 0.38 µm (Electropolished) | Standard Machined Finish (Ra > 1.6 µm) |
| Max Process Temp | +150 °C (CIP/SIP Proof) | +80 °C |
| Process Connections | Tri-Clamp, Varivent N, DIN 11864, SMS | Standard NPT/G Threads & Flanges |
| Wetted Gasket Design | FDA-compliant PEEK (Gap-Free Seal) | Standard Elastomers (FKM/Viton) |
| Target Application | Milk processing, fermentation tanks, API reactors | Cooling water tanks, fuel, utility fluids |
A: Yes. FMP53 is engineered for continuous process temperatures up to +150 °C (+302 °F). Its hygienic rod probe and gap-free PEEK process seals withstand aggressive acid/alkali CIP washdown solutions and live SIP steam sterilization without thermal damage or zero-point drift.
A: Each FMP53 transmitter can be supplied with EN 10204-3.1 material inspection certificates, CoC ASME-BPE compliance documents, USP Class VI elastomer certificates, 3-A symbol authorizations, and EHEDG hygienic testing validation records.
A: The split sensor housing separates the transmitter electronics from the process connection using a 3 m or 6 m flexible cable. This protects transmitter electronics from intense washdown heat and allows operators to read displays conveniently at eye level in low-clearance cleanrooms.
Need immediate pricing for Endress+Hauser Levelflex FMP53, Tri-Clamp flange options, or FDA material certificates? Contact our sanitary application engineers today for official datasheets, delivery times, and competitive pricing.
