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LR11
Intrinsically Safe Radar Level Transmitter for Corrosive Media
- PFA encapsulated antenna and mount 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
Product Overview
- Accuracy ± 5 mm
- Antenna Diameter 1.74 in
- Antenna Length 4.25 in
- Approvals CE, RoHS, FCC
- Approvals Note ATEX IIG Ex ia II C T6...T3 Ga IEC Ex ia IIC T6...T3 Ga CSA Class I, Div 1, Groups A, B, C & D; Class II, Div 1, Groups E, F & G; (T6... T3); Class I Zone 0 AEx ia IIC (T6... T3) Ga & Zone 20 AEx ia IIIC (T76°C to T146°C) Da; Ex ia IIC (T6...T3) Ga & Ex ia IIIC (T76°C to T146°C) Ga
- Bar Graph Percent of Span
- Beam Angle 22°
- Configuration Push Button, HART 7
- Deadband 12 in
- Display and Indications Echo Signal Curve
- Display Measuring Units ft, m
- Display Type LCD
- Electrical Connection 1/2 in NPT
- Electrical Output 4 to 20 mA
- Enclosure Ratings IP67, NEMA Type 6
- Frequency 26 GHz
- Materials 316 Stainless Steel, Polycarbonate, PFA
- Measuring Range, Min 1 ft
- Memory Non-Volatile
- Number of Wires 2
- Operating Pressure, Max 43.5 psi
- Operating Pressure, Min -14.5 psi
- Power Consumption 22.5 mA
- Probe Type Antenna
- Process Connection Size 1 1/2 in
- Process Connection Type NPT Male and Female
- Process Temperature, Max 130 °C
- Process Temperature, Min -40 °C
- Signal fail-safe 3.9 mA, 20.5 mA, 22 mA
- Signal invert 4 to 20 mA, 20 to 4 mA
- Storage Temperature, Max 80 °C
- Storage Temperature, Min -40 °C
- Supply Voltage 21.6 to 26.4 Vdc
- Tank Type Metal / Reinforced Concrete
- Temperature Compensation Automatic
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.
Corrosion Resistance
The US produces 40 million tons of sulfuric acid per year that is widely used in oil refining, wastewater treatment, lead-acid battery and cleaning product applications. In higher concentrations, sulfuric acid is both extremely corrosive and vaporous. The non-contact LR11 sensor is an excellent choice for this application, as its 26 GHz. pulse radar measurement is unaffected by vapor, and the antenna and process mount are encapsulated in corrosion resistant PFA for years of reliable service. Select this sensor with confidence in corrosive, vaporous applications.
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