EchoPro LR31 Radar Liquid Level Sensor Transmitter
The intrinsically safe 26 GHz. pulse radar transmitter provides continuous level measurement up to 98.4’ (30m) with a 4-20 mA signal output, and is configured via its remote push button display module or HART communicator. The non-contact liquid level sensor is intended for industrial wastewater, municipal storm or sewer lift station, reservoir, river, canal or open channel applications located below or above grade. Select this sensor for challenging process conditions that may include light surface foam or agitation, small trash or plant material, wind, condensation or vapor. Each comes with a 32.8’ (10m) cable, mounting bracket and display module. The sensor is designed for bracket mount installation suspended above the liquid level.
Features:
- Rugged IP68 sensor enclosure with 304 SS mounting bracket
- Configuration via push button display or HART communicator
- 26 GHz. pulse radar is unaffected by sump process conditions
- Wall mounted display with windowed enclosure rated IP67
- 12” (30cm) dead band enables utilization of the entire sump
- 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
- Self diagnostics with selectable fail-safe signal outputs
- Recognition, storage and rejection of false echo signal returns
Specifications:
1. SENSOR
- Range: 12” to 98.4’ (30cm to 30m)
- Frequency: 26 GHz.
- Accuracy: ± 3mm
- Dead band: 12” (30cm)
- Beam angle: 12º
- Supply voltage: 21.6 to 26.4 VDC
- Max consumption: 22.5 mA
- Signal output: 4-20 mA, two-wire, HART 7
- Signal invert: 4-20 mA, 20-4 mA
- Signal fail-safe: 3.9 mA, 20.5 mA, 22 mA
- Process temp.: F: -40º to 212º, C: -40º to 100º
- Temp. comp.: Automatic
- Pressure: Atmospheric
- Enclosure rating: IP68
- Encl. material: Nylon
- Cable type: 6-conductor, shielded
- Cable length: 32.8’ (10m)
- Cable jacket mat.: PVC
- Process mount: 304 SS bracket or 1” NPT
2. DISPLAY
- Display type: LCD, dot matrix
- Display units: Feet and meters
- Display bar: Percent of span
- Display graph: Echo signal curve
- Configuration: Push button, HART 7
- Enclosure type: Wall mount
- Enclosure rating: IP67
- Encl. material: Polycarbonate
- Conduit entrance: (2) 1/2” NPT connectors
3. COMMON
- Memory: Non-volatile
- Storage temp.: F: -40º to 176º, C: -40º to 80º
- Classification: Intrinsically safe
- Approvals: 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) Da
- Entity parameters: Install per control drawing #301901
- Certification: FCC
- Compliance: CE, RoHS
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