SX-LFNB Series

The SensorsX SX-LFNB Series is a continuous float level transmitter designed for reliable liquid level measurement in tanks and vessels. A magnetic float follows the liquid level and actuates an internal reed-switch and resistor-divider network to provide continuous level output. The series supports two-wire 4–20 mA or three-wire resistance output, with configurable measuring ranges, multiple float materials, and threaded or flanged process connections for a wide variety of liquid applications.

• Measurement Range: 300–6000 mm; custom ranges available
• Insertion Depth: 500–6200 mm; custom ranges available
• Resolution: 5 mm / 8 mm / 10 mm
• Total Accuracy: ±8 mm or ±10 mm
• Output Signal: Two-wire 4–20 mA / Three-wire resistance output
• Power Supply: 5–30 VDC
• Ingress Protection: IP65 at lead outlet or junction box
• Float Materials: SUS304 / SUS316L / PP / PVDF
• Process Connection: Threaded or flanged; ASME B16.5 Class 150 / Class 300, PT / PF / NPT / GAS thread, EN 1092 PN6–PN63 options
• Maximum Operating Temperature: Up to 200°C depending on float material and configuration
• Maximum Operating Pressure: Up to 64 kgf/cm² for selected configurations; standard float ratings depend on float type and material
• Minimum Liquid Specific Gravity: 0.45–1.00 depending on selected float