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LR21

Intrinsically Safe, Flanged Mounted Radar Level Transmitter

Models In Stock
  • 316L antenna with PTFE inner shield 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
LR21
From C$ 4,594.35
Models In Stock
Intrinsically Safe, Flanged Mounted Radar Level Transmitter LR21 LR21
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Product Overview
  • Accuracy ± 3 mm
  • Antenna Diameter 7.5 in
  • Antenna Length 9 in
  • Approvals CE, RoHS, CRN, 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 12°
  • 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
  • Flange Thickness 0.88 in
  • Frequency 26 GHz
  • Materials 316 Stainless Steel, Polycarbonate
  • Measuring Range, Min 1 ft
  • Memory Non-Volatile
  • Number of Wires 2
  • Operating Pressure, Max 72 psi
  • Operating Pressure, Min -14.5 psi
  • Power Consumption 22.5 mA
  • Probe Type 3" Antenna
  • Process Connection Size 3 in
  • Process Connection Type ANSI Flange
  • Process Temperature, Max 150 °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 Any
  • Temperature Compensation Automatic
The intrinsically safe 26 GHz. pulse radar transmitter provides continuous level measurement up to 65.6’ (20m) 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 storage or process applications in above or below grade tanks of any material. Select this sensor for challenging process conditions with corrosive media, light surface foam or agitation, higher temperature or pressure, condensation or vapor, and installation in a flange fitting. Typical applications include bulk storage and process tanks.

PTFE Shield
Sufuric and nitric acids are strong mineral acids that are widely used in industrial and commercial applications. Highly vaporous and corrosive, they’re difficult to measure and harsh on equipment. The non-contact LR21 is an excellent choice for this media, as its 26 GHz. pulse radar measurement is unaffected by extreme vapor, and the antenna’s PTFE inner shield, provides reliable corrosion resistance.
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