Flowline LR20 Specifications

®

EchoPulse

Pulse Radar Liquid Level Transmitter

LR20

Application

The general purpose 26 GHz. pulse radar transmitter provides
continuous level measurement up to 65.6’ (20m) with a 4-20
mA signal output, and is configured via its integral push button
display module. 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.

Features

316L antenna with PTFE inner shield 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

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

Fail-safe diagnostics with selectable signal fail-safe outputs

Recognition, storage and rejection of false echo signal returns

Rugged IP67 aluminum enclosure with polycarbonate window

LR20-0310-30 Shown

Success

Hydrochloric acid is an inorganic acid
that’s widely used in industrial and
commercial applications. Both highly
corrosive and vaporous, it’s difficult
to measure. Here, a LR20 is flange
mounted on a 18’ HCL storage tank
at a steel fabrication company. Its 26
GHz. pulse radar measurement is un­affected by the extreme vapor, and the
antenna’s PTFE inner shield, provides
reliable corrosion resistance.

© 2018 Flowline | 10500 Humbolt Street, Los Alamitos, CA 90720 USA p 562.598.3015 f 562.431.8507 w flowline.com DS301750 REV B2

®

3.865"

EchoPulse

Pulse Radar Liquid Level Transmitter

LR20

Specifications

Range:

Frequency:

Accuracy:

Dead band:

Beam angle:

Configuration:

Memory:

Display type:

Display units:

Display bar:

Display graph:

Supply voltage:

Max. consumption:

Signal output:

Signal invert:

Signal fail-safe:

Process temp.:

Temp. comp.:

Storage temp.:

Pressure:

Enclosure rating:

Encl. material:

Encl. window mat.:

Conduit entrance:

Antenna material:

Process mount:

Classification:

Certification:

Compliance:

12” to 65.6’ (30cm to 20m)

26 GHz.

± 3mm

12” (30cm)

- 30: 12º

- 40: 8º

Push button

Non-volatile

LCD, dot matrix

Feet and meters

Percent of span

Echo signal curve

16-26 VDC

22.5 mA

4-20 mA, two-wire

4-20 mA, 20-4 mA

3.9 mA, 20.5 mA, 22 mA

F: -40º to 302º

C: -40º to 150º

Automatic

F: -40º to 176º

C: -40º to 80º

-14.5 to 72 psi (-1 to 5 bar)

IP67

Aluminum w/silicone gasket

Polycarbonate

(1) 1/2” NPT connector

(1) M20 x 1.5 plug

316L w/PTFE inner shield

- 30: 3” flange (ANSI)

- 40: 4” flange (ANSI)

General purpose

cTUVus

FCC

CE, CRN, RoHS

Dimensions

ANTENNA / FLANGE

-30

P/N

3” ANSI

A

7.5” (190.5mm)

B

0.88” (22.3mm)

C

6.5” (165mm)

D

Echo Signal Return Curve Shown

-40

4” ANSI

9.0” (228.6mm)

0.88” (22.3mm)

8.0” (203mm)

Compatible Products

LI23

DATA LOOP™

Level Indicator

(98.2mm)

(138.1mm)

5.44"

(78.0mm)

3.07"

D

B

DATAV IEW ™

Level Controller

LI55

½"

NPT

(83mm)

3.27"

A

C

Ordering

LR20-0310- 0

FLANGE SIZE (1)

3 3” ANSI

4 4” ANSI

© 2018 Flowline | 10500 Humbolt Street, Los Alamitos, CA 90720 USA p 562.598.3015 f 562.431.8507 w flowline.com DS301750 REV B2

NOTES

If you want help in selecting a sensor for your application, please go to our

1)

website and submit a Level Questionnaire. An engineer will review your

requirements and suggest a product solution via email.