EchoPro® LR11 Radar Liquid Level Sensor
Specifications
Range: 12” to 32.8’ (30cm to 10m)Frequency: 26 GHz.Accuracy: ± 5mmDead band: 12” (30cm)Beam angle: 22ºConfiguration: Push button, HART 7Memory: Non-volatileDisplay type: LCD, dot matrixDisplay units: Feet and metersDisplay bar: Percent of spanDisplay graph: Echo signal curveSupply voltage: 21.6 to 26.4 VDCMax. consumption: 22.5 mASignal output: 4-20 mA, two-wire, HART 7Signal invert: 4-20 mA, 20-4 mASignal fail-safe: 3.9 mA, 20.5 mA, 22 mAProcess temp.: F: -40º to 266º, C: -40º to 130ºTemp. comp.: AutomaticStorage temp.: F: -40º to 176º, C: -40º to 80ºPressure: -14.5 to 43.5 psi (-1 to 3 bar)Enclosure rating: IP67Encl. material: 316L stainless steel w/silicone gasket and PBT FR neckEncl. window mat.: PolycarbonateConduit entrance: (1) 1/2” NPT connectorAntenna material: PFAProcess mount: 1-1/2” NPTClassification: Intrinsically safeApprovals: ATEX 
IIG Ex ia II C T6…T3 Ga; IEC Exia IIC T6…T3 Ga; CSA Class I, Division 1, Groups A, B, C, D; Class II, Division 1, Groups E, F, G; (T6…T3) Class I Zone 0 AEx ia IIC (T6…T3) Ga Zone 20 AEx ia IIIC (T76ºC to T146ºC) Da Ex ia IIC (T6…T3) Ga Ex ia IIIC (T76ºC to T146ºC) DaEntity parameters: Install per control drawing #301901Certification: FCCCompliance: CE, RoHS
The intrinsically safe 26 GHz. pulse radar level transmitter provides continuous level measurement up to 32.8’ (10m) 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 or water storage applications in above grade metal or reinforced concrete tanks or below grade tanks of any material. Select this sensor for easy process conditions with corrosive media, light agitation, condensation or vapor, and installation in a low-profile tank adapter or flange fitting. Typical applications include chemical bulk storage and tanker trucks.
Features- PFA encapsulated antenna and mount 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
- 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
- IP67 stainless enclosure with polycarbonate display window