LEFOO LFUD107 Ultrasonic Sludge-Water Interface Level Meter
Original maker LEFOO LFUD107 Ultrasonic Sludge-Water Interface Level Meter. This named model has different physical design/ultrasonic application from sibling LFUD models and must not be conflated across product suffixes.
Manufacturer technical and installation distinctions
| Principle | Acoustic sediment/sludge-water boundary detection with immersed probe and external display head |
|---|---|
| Depth | 0–3 to 30 metres |
| Blind zone | Less than 0.5 metres maker sensor catalog |
| Accuracy/resolution | ±0.5% maker reference; 1mm resolution |
| Outputs | 4–20mA + RS485 + two relays |
| Ingress | Transmitter IP65, probe IP68 |
| Protection | No order-specific ATEX/IECEx approval independently verified |
Original LEFOO Sensor Products catalog, ultrasonic table and photos (page 29 in printed booklet) · LEFOO source model directory
Verified manufacturer model existence, distinct specs and original photo location on 23 October 2026. Exact cropped original photo / certificate and all part-number combinations remain open.
LFUD107 — submerged sludge-water interface
LFUD107 targets the sludge-water boundary with a submerged ultrasonic probe rather than reflecting down from a dry tank lid. Signal quality depends on sludge concentration, stratification, probe fouling and installation depth; confirm the maker’s less-than-0.5 m blind zone and application-specific detection range. Preserve the IP68 sensing head and IP65 display/electronics separation. A stated millimetre-level display resolution is not the same as interface location accuracy under fluctuating sediment concentrations.