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Intrinsically Safe, Flanged Mounted Radar Level Transmitter

3" ANSI Flange, 7.5" Antenna, 12" to 65.6' Range


Item# LR21-5321-30-00

In stock

Lead Time (If not in stock): 14 weeks
3" ANSI Flange, 7.5" Antenna, 12" to 65.6' Range LR21-5321-30-00 LR21-5321-30-00
  • 316L antenna with PTFE inner shield for corrosive media
  • Configuration via push button display or HART communicator
  • 26 GHz. pulse radar is unaffected by vapor or condensation
  • 12” (30cm) dead band enables utilization of the entire tank

LR21-5321-30-00 Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Media type
Tank/Vessel Type
Max Measurement Range
Output Signal
Max Operating Pressure
Max Process Temperature
Wetted Materials
Probe Style
Supply Power
Process Connection Type
Process Connection Size

  • Beam Angle 12°
  • Certification FCC
  • Connection Type 3" Flange (ANSI)
  • Accuracy Value +/- 3mm
  • Display Type LCD
  • Frequency 26 GHz
  • Maximum Liquid Temperature 150C (302F)
  • Maximum Operating Pressure 72 psi
  • Measurement Type Level
  • Minimum Ambient Temperature -40°C (-40°F)
  • Minimum Liquid Temperature -40C ('-40F)
  • Retransmission/Analog Output 4 to 20 mA, HART 7
  • Supply Voltage 21.6 to 26.4 Vdc
  • Wetted Materials 316L SS, PTFE
  • Classification Intrinsically safe
  • Measurement Unit Ft/M
The intrinsically safe 26 GHz. pulse radar transmitter provides continuous level measurement up to 65.6’ (20m) with a 4-20 mA analog and HART digital signal output, and is configured via its integral push button display module or HART communicator. The non-contact liquid level sensor is intended for chemical storage or process applications in above or below grade tanks of any material. Select this sensor for challenging process conditions with corrosive media, light surface foam or agitation, higher temperature or pressure, condensation or vapor, and installation in a flange fitting. Typical applications include bulk storage and process tanks.

PTFE Shield
Sufuric and nitric acids are strong mineral acids that are widely used in industrial and commercial applications. Highly vaporous and corrosive, they’re difficult to measure and harsh on equipment. The non-contact LR21 is an excellent choice for this media, as its 26 GHz. pulse radar measurement is unaffected by extreme vapor, and the antenna’s PTFE inner shield, provides reliable corrosion resistance.
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Intrinsic Safety Barrier
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