Flowline LU20 Specifications
™
Echotouch
Ultrasonic Liquid Level Transmitter
LU20
I
P
65
Application
Intrinsically safe for use in hazardous locations,
the intrinsically safe ultrasonic transmitter provides
continuous level measurement up to 18’ (5.4m), and is
configured via its integral push button display module.
This non-contact liquid level sensor is ideally suited for
corrosive, sticky or waste liquids, and is selected for
bulk storage and day tank applications located within a
classified area.
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
Specifications
Range:
Accuracy:
Resolution:
Dead band:
Beam width:
Configuration:
Memory:
Display type:
Display units:
Supply voltage:
Loop resist.:
Signal output:
Signal invert:
Signal fail-safe:
Process temp.:
Temp. comp.:
Ambient temp.:
Pressure:
Enclosure rating:
Encl. material:
Conduit entrance:
Trans. material:
Process mount:
Mount gasket:
Classification:
Compliance:
Approvals:
Parameters:
Certificates:
6" to 18' (15cm to 5.4m)
± 0.25% of range
0.125" (3mm)
6" (15cm)
8° conical
Push button
Non-volatile
LCD, 4-digit
Inch or cm
12-32 VDC
600 Ohms @ 24 VDC
4-20 mA, two-wire
4-20 mA, 20-4 mA
Reverts to safe state during echo loss
F: -4° to 140°
C: -20° to 60°
Automatic
F: -40° to 140°
C: -40° to 60°
30 psi (2 bar) @ 25° C, derated @ 1.667 psi
(.113 bar) per °C above 25° C
NEMA 4X (IP65)
PP, UL94VO
Single, 1/2" NPT
PVDF
2" NPT (2" G)
Viton®
Intrinsically safe
CE
CSA: Class I, Groups A,
B, C, D; Class II, Groups
E, F, G; Class III; T3C
CSA: Vmax < 32.0 V;
Imax < 130 mA;
Ca = 0 uF; La = 0 uH
CSA: LR 79326
Ordering
PROCESS MOUNT (1)(2)(3)
0 2” NPT (US)
6 2” G (Metric)
NOTES
LU20-50 1-IS
The straight G thread version seals with an included
1)
Viton mounting gasket.
For installation on open tanks, order the LM50-1001 (2”
2)
NPT) or LM50-1061 (2” G) side mount bracket. Locate
the bracket far enough inboard form teh side wall to
avoid sensor beam width conflicts.
To order the general purpose transmitter, do not specify
3)
the last two digits (ie: LU20-5001).
To complete your IS transmitter, add the LB10-1001
LM50 Shown LB10 Shown
© 2015 Flowline | 10500 Humbolt Street, Los Alamitos, CA 90720 USA p 562.598.3015 f 562.431.8507 w flowline.com DS201800 REV A1
4)
intrinsic safety barrier.
Echotouch
Ultrasonic Liquid Level Transmitter
™
LU20
Dimensions
6.3" (159 mm)
3.6" (92 mm)
4.9" (124 mm)
(32 mm)
1.3"
Beam Cone Data
To LC52 Relay Controller
2.8" (71 mm)
2" NPT (2" G)
To Loop Powered Indicator
D
R
Depth
(Feet)
2
4
6
8
10
12
14
16
18
Radius
(Inches)
2.1
3.7
5.4
7.1
8.8
10.4
12.1
13.8
15.5
Radius
(cm)
5.3
9.4
13.7
18.0
22.4
26.4
30.7
35.0
39.4
To PLC
© 2015 Flowline | 10500 Humbolt Street, Los Alamitos, CA 90720 USA p 562.598.3015 f 562.431.8507 w flowline.com DS201800 REV A1
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