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SX-LRNB Series

SX-LRNB Series

The SX-LRNB Series is an 80 GHz FMCW radar level transmitter designed for continuous level measurement of liquids and bulk solids. Narrow-beam antenna options support reliable measurement in demanding conditions such as agitation, condensation, dust, splashing, and antenna buildup. Multiple antenna designs, process connections, output options, and temperature and pressure configurations are available for a wide range of industrial applications.

  • Transmit Frequency: 76–81 GHz FMCW radar
  • Measurement Range: 10, 20, 30, 60 or 120 m; custom ranges available on request
  • Measurement Accuracy: ±2, ±3, ±5 or ±10 mm, depending on configuration
  • Beam Angle: 3°, 4° or 8°, depending on antenna configuration
  • Output / Communication: 4–20 mA with HART and/or RS485, depending on output configuration
  • Power Supply: 12–28 V DC
  • Process Connection: Threaded, flanged or clamp
  • Process Pressure: Up to 4 MPa, depending on antenna and process connection
  • Antenna Options: 3° hollow lens or 3°, 4° and 8° solid lens
  • Wetted Materials: PTFE and stainless-steel/PTFE combinations, depending on configuration
  • Ingress Protection: IP65 or IP66/67, depending on housing configuration
  • Process Temperature: −196 to +450 °C, configuration-dependent
  • Explosion Protection: Optional Ex ia, Ex db or Ex tb with EAC or ATEX approval
Ordering Code
$2,625.00

Product Overview

The SX-LRNB Series is an 80 GHz FMCW radar level transmitter designed for continuous level measurement of liquids and bulk solids. Narrow-beam antenna options support reliable measurement in demanding conditions such as agitation, condensation, dust, splashing, and antenna buildup. Multiple antenna designs, process connections, output options, and temperature and pressure configurations are available for a wide range of industrial applications.

Main Features

  • 76–81 GHz FMCW radar measurement technology.
  • Measuring ranges of 10, 20, 30, 60 or 120 m, with custom ranges available on request.
  • Accuracy options of ±2, ±3, ±5 and ±10 mm.
  • 3°, 4° and 8° antenna beam-angle options.
  • 4–20 mA with HART, 4–20 mA with RS485, or RS485 output configurations.
  • 12–28 V DC power supply.
  • IP65 or IP66/67 housing options.
  • Threaded, flanged and clamp process connections.
  • Process-pressure capability up to 4 MPa, depending on antenna and process connection.
  • Temperature configurations for cryogenic service down to −196 °C and high-temperature service up to +450 °C.
  • Multiple wetted-material configurations, including PTFE and stainless-steel/PTFE combinations.
  • Optional Ex ia, Ex db and Ex tb versions with EAC or ATEX approval.
  • Suitable for liquid and bulk-solids level measurement in demanding industrial process conditions.
  • 128 × 64 dot-matrix display with four keys for local operation.

Product Application

Typical Applications

Liquid Level Measurement
Solids & Dusty Environments
Harsh & High-Temperature Process
Multi-level agitated tanks
High-range solids storage silo level
Corrosive gas/liquid chemical process vessels
Vessel level with baffles or vortex conditions
Powder / dust-laden bin level
High-temperature / high-pressure reactors
Splashing / turbulent surface level
Bulk solids level measurement
Energy and chemical industry process tanks

Technical Data

Measurement
Product Type 80 GHz FMCW Radar Level Transmitter
Transmit Frequency 76–81 GHz
Measurement Range 10, 20, 30, 60 or 120 m; custom ranges available on request
Measurement Accuracy ±2, ±3, ±5 or ±10 mm, depending on configuration
Beam Angle 3°, 4° or 8°, depending on antenna configuration
Power & Output
Supply Voltage 12–28 V DC
Output / Communication 4–20 mA with HART and/or RS485, depending on output configuration
Fault Output 3.8 mA, 4 mA, 20 mA, 21 mA, or hold
Cable Entry M20 × 1.5
Recommended Cable AWG18 or 0.75 mm²
Mechanical & Materials
Antenna 3° hollow-lens antenna or 3°, 4° and 8° solid-lens antenna options
Antenna Material PTFE
Wetted Material PTFE; PTFE with FKM or EPDM; glass with metal graphite; or stainless steel with PTFE, depending on configuration
Housing Material Aluminium alloy
Overall Dimensions Ø100 × 270 mm
Process Connection Threaded, flanged or clamp
Process Pressure Up to 4 MPa, depending on antenna and process connection
Performance
Accuracy / Blind Zone ±2 mm / 0.1 m; ±3 or ±5 mm / 0.3 m; ±10 mm / 0.6 m
Beam Angle Options 3° hollow lens; 3°, 4° or 8° solid lens
Measuring Range Options 10 / 20 / 30 / 60 / 120 m
Transmit Frequency 76–81 GHz
Fault Output Options 3.8 mA / 4 mA / 20 mA / 21 mA / hold
Local Operation 128 × 64 dot-matrix display; four keys; PC configuration software
Net / Gross Weight 2.480 kg / 2.995 kg
Environmental Conditions
Process Temperature −196 to +450 °C, configuration-dependent
Structure Temperature Options −40 to +85 °C / −40 to +200 °C / −40 to +450 °C / −196 to +200 °C
Ingress Protection IP65 or IP66/67, depending on housing configuration
Installation & Options
Installation Threaded, flanged or clamp process connection
Explosion Protection Optional Ex ia, Ex db or Ex tb configurations with EAC or ATEX approval
Local Programming 128 × 64 dot-matrix display; four keys; PC configuration software


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