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FLOWLINE ECHOtouch® lu20 ultrasonic level transmitter


The Flowline EchoTouch LU20 Ultrasonic Liquid Level Sensor's well design makes it suitable for the safe use in hazardous locations. The non-contact liquid level sensor is recommended for corrosive, waste, or sticky liquids. It is chosen for bulk storage, day tank, skid or machine and process tank applications located within a classified area.

Flowline echotouch® lu20 ultrasonic level sensor features:

  • LCD digital display indicates level in inches or centimeters
  • PP enclosure rated NEMA 4X with rugged Kynar® transducer
  • EasyCal simple push button calibration for all user set points
  • Adjustable dead band and range filters eliminate false echo returns

Flowline echotouch® lu20 ultrasonic level sensor dimensions:

Flowline EchoTouch LU20 Ultrasonic Level Sensor Beam Cone Data:

General Specifications for flowline echotouch level transmitters:

RANGE: 6″ to 18′ (15cm to 5.4m)

ACCURACY: ± 0.25% of range

RESOLUTION: 0.125″ (3mm)

DEAD BAND: 6″ (15cm)

BEAM WIDTH: 8° conical

CONFIGURATION: Push button

MEMORY: Non-volatile

DISPLAY TYPE: LCD, 4-digit

DISPLAY UNITS: Inch or cm

SUPPLY VOLTAGE: 12-32 VDC

LOOP RESISTANCE: 600 Ohms @ 24 VDC

SIGNAL OUTPUT: 4-20 mA, two-wire

SIGNAL INVERT: 4-20 mA or 20-4 mA

SIGNAL FAIL-SAFE: Reverts to safe state during echo loss

PROCESS TEMP: F: -4° to 140°, C: -20° to 60°

TEMP COMP: Automatic

AMBIENT TEMP: F: -40° to 140°, C: -40° to 60°

PRESSURE: 30 psi (2 bar) @ 25° C, derated @ 1.667 psi (.113 bar) per ºC above 25ºC

ENCLOSURE RATING: NEMA 4X (IP65)

ENCLOSURE MATERIAL: PP, UL94VO

CONDUIT ENTRANCE: Single, 1/2″ NPT

TRANSMITTER MATERIAL: Polyvinylidene Fluoride

PROCESS MOUNT: 2″ NPT (2″ G)

MOUNT GASKET: Viton®

CLASSIFICATION: Intrinsically safe

COMPLIANCE: CE

APPROVALS: CSA: Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III; T3C

PARAMETERS: CSA: Vmax < 32.0 V; Imax < 130 mA; Ca = 0 uF; La = 0 uH

CERTIFICATES: CSA: LR 79326