APPLICATION
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
PRICING
| P/N | Description | From |
|---|---|---|
| LR31-0021-10-00 | Transmitter & remote display | $2,000.00 |
| LB12-1001 | Intrinsic safety barrier | $1,050.00 |
DOCUMENTATION
Data Sheet | Quick Start | Manual | Addendum (6 vs 8 wires) | Addendum (Pressure Range) | Control Drawing | CSA Certificate | IECEx Certificate | ATEX Certificate | HART DD Files | 3D Model | Flowline Brochure
SPECIFICATIONS
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
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
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
PRODUCT SELECTION
If you want help in selecting a sensor for your application, please submit a Level Questionnaire. An engineer will review your requirements and suggest a product solution via email.
