EchoPulse® LR20 Pulse Radar Level Transmitter





The general purpose 26 GHz. pulse radar level transmitter provides continuous level measurement up to 65.6’ (20m) with a 4-20 mA signal output, and is configured via its integral push button display module. 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.




 316 L antenna with PTFE inner shield for corrosive media

 Simple configuration via integral push button display module

 26 GHz. pulse radar is unaffected by vapor or condensation

 12" (30cm) dead band enables utilization of the entire tank

 LCD displays level in feet or meters with percent of span bar

 Optional display mode indicates the echo signal return curve


 Auto-temperature compensation for accurate measurement

 Fail-safe diagnostics with selectable signal fail-safe outputs

 Recognition, storage and rejection of false echo signal returns

 Rugged IP67 aluminum enclosure with polycarbonate window



Range: 12" to 65.6' (30cm to 20m)
Frequency: 26 GHz.
Accuracy: ± 3mm
Dead band: 12" (30cm)
Beam angle: - 30: 12°
- 40: 8°
Configuration: Push button
Memory: Non-volatile
Display type: LCD, dot matrix
Display units: Feet and meters
Display bar: Percent of span
Display graph: Echo signal curve
Supply voltage: 16-26 VDC
Max. consumption: 22.5 mA
Signal output: 4-20 mA, two-wire
Signal invert: 4-20 mA, 20-4 mA
Signal fail-safe: 3.9 mA, 20.5 mA, 22 mA
Process temp.: F: -40° to 302° 
C: -40° to 80°
Temp. comp.: Automatic
Storage temp.: F: -40° to 176° 
C: -40° to 80°
Pressure: -14.5 to 72 psi (-1 to 5 bar)
Enclosure rating: IP67
Encl. material: Aluminum w/silicone gasket
Encl. window mat.: Polycarbonate
Conduit entrance: (1) 1/2" NPT connector 
(1) M20 x 1.5 plug
Antenna material: 316 L w/PTFE inner shield
Process mount: - 30: 3" flange (ANSI) 
- 40: 4" flange (ANSI)
Classification: General purpose
Certification: cTUVus 
Compliance: CE, CRN, RoHS


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