Flowline LU81-5101 Ultrasonic Level Transmitter
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Flowline LU81-5101 is an ultrasonic level transmitter with 4-20mA output, NEMA 4X enclosure, PVDF transducer, and measurement range to 26.2 feet.
Product details
| Model | LU81-5101 |
| Manufacturer | Flowline |
| Category | Process Instruments |
| Availability | Made to order |
Description
Overview
The Flowline LU81-5101 is a programmable ultrasonic level transmitter designed for continuous level monitoring in industrial tank applications. It provides a 4-20mA loop output for integration with SCADA systems and process controllers. The device features a PVDF transducer and NEMA 4X polycarbonate enclosure for reliable operation with corrosive liquids.
Key Features
- 4-20mA loop output with selectable invert and fail-safe options
- Ultrasonic measurement with narrow 3-inch beam width for applications with limited space
- PVDF transducer and NEMA 4X (IP65) polycarbonate enclosure
- Push-button configuration for simple setup
- 6-digit LCD display showing level in inches, centimeters, or percentages
- High accuracy of ±0.2% of range
- Fail-safe intelligence and diagnostic feedback for troubleshooting
- Non-volatile memory
- CE and RoHS compliant
Applications
- Continuous tank level monitoring in industrial processes
- Integration with PLC and SCADA control systems
- Corrosive liquid level measurement
- Remote level indication and automation
Included Accessories
- Ultrasonic Level Transmitter
- QuickStart Guide
Specifications
| Measurement Range | 8" to 26.2' (0.2m to 8m) |
| Accuracy | ±0.2% of range |
| Resolution | 0.039" (1mm) |
| Dead Band | 8" (20cm) |
| Beam Width | 3" (7.6cm) |
| Supply Voltage | 12-28 VDC |
| Signal Output | 4-20mA two-wire |
| Loop Resistance | 500 Ohms @ 24 VDC |
| Signal Options | 4-20mA, 20-4mA, fail-safe modes (4mA, 20mA, 21mA, 22mA or hold last) |
| Process Temperature | -4° to 140°F (-20° to 60°C) |
| Ambient Temperature | -31° to 140°F (-35° to 60°C) |
| Maximum Pressure | 30 psi (2 bar) |
| Enclosure Rating | NEMA 4X (IP65) |
| Enclosure Material | Polycarbonate |
| Transducer Material | PVDF |
| Display Type | LCD, 6-digit |
| Compliance | CE, RoHS |
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Flowline LU81-5101 Ultrasonic Level Transmitter
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