The Flowline EchoSpan LU81-5101 is a general-purpose non-contact ultrasonic liquid level transmitter engineered for continuous level measurement up to 18 feet (5.5 meters). It features a 2-inch male NPT process connection, 4-20 mA current loop output, and an integrated LCD display module with push-button controls for straightforward field configuration and real-time status diagnostics. Built with a rugged NEMA 4X polycarbonate enclosure and PVDF transducer, it is well suited for corrosive, ultrapure, sticky, or waste liquid applications.
Inspection & Condition Details:
We have inspected this item and we do not have the capability to install the unit to fully test it.
Packaging/Defects:Please refer to the photos for more information.
This unit only includes what is photographed in the listing.
Made in USA
Technical Specs
| Item | Noncontact Ultrasonic Level Sensor |
| Manufacturer Part Number | LU81-5101 |
| Connection | 2 in NPT |
| Connection Size | 2 in |
| Connection Type | NPT |
| Accuracy | +/-0.2% of Range |
| Media Temp. Range | -7 °F to 140 °F |
| Media Temperature (Minimum) | -7 °F |
| Max. Media Temperature | 140 °F |
| Max. Operating Pressure | 30 psi |
| Max. Voltage | 28V DC |
| Spatial Resolution | 0.039 in |
| Beam Width | 3 in |
| Output Wire Configuration | 2-Wire |
| Tank Seal Material | Viton |
| Display Type | LCD |
| Enclosure Material | Polycarbonate |
| Enclosure Rating | NEMA 4X |
| Dead Band | 8 in |
| Operating Frequency | 50 kHz |
| Overall Diameter | 5-1/4 in |
| Overall Length | 5.2 in |
| Overall Width | 4.1 in |
| Overall Height | 5.5 in |
| Antenna Diameter | 2-3/8 in |
| Output Voltage Range | 4 to 20mA |
| For Media Type | Corrosive Liquid; Sticky/Waste Liquid; Ultrapure Liquid |
| Range | 216 in |
| Country of Origin | USA |
| Model | EchoSpan LU81-5101 |