EchoPulse® LR25 Pulse Radar Level Transmitter






The general purpose 6.3 GHz. pulse radar level transmitter provides continuous level measurement up to 114.8' (35m) 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 and petroleum storage or process applications in above grade metal or reinforced concrete tanks or below grade tanks of any material. Select this sensor for harsh application conditions with corrosive or low dielectric media, heavy surface foam or agitation, higher pressure, steam, condensation or vapor, and installation in a flange fitting. Due to the wider beam angle, special attention should be given to ensure that the sensor is located with unobstructed measurement space.



 316 L antenna with PTFE inner shield for corrosive media

 Simple configuration via integral push button display module

 6.3 GHz. pulse radar is unaffected by most foam and agitation

 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 114.8' (30cm to 35m)
Frequency: 6.3 GHz.
Accuracy: ± 10mm
Dead band: 12" (30cm)
Beam angle: 20°
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 266° 
C: -40° to 130°
Temp. comp.: Automatic
Storage temp.: F: -40° to 176° 
C: -40° to 80°
Pressure: -14.5 to 580 psi (-1 to 40 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: - 40: 4" flange (ANSI) 
- 60: 6" flange (ANSI)
Classification: General purpose
Certification: cTUVus 
Compliance: CE, CRN, RoHS


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