Omega Products LVU1501 User Manual

Loop powered and Four-wire
uLtrasonic LeveL transmitters

LVU1501 Series

U 0.3 to 7.6 m

(1 to 25') Range

U Exclusive VSS

Sensor Sense

3

⁄4 NPT Mounting

U Programmable Zero

and Span Through
BCD Switches

U Direct Replacement of

Capacitance System

U Intrinsically Safe and

Explosion Proof Rating
with 316LSS Sensor,
PTFE, Sensors

U STD Near Zone Varies

from 152.4 to 305 mm
(6 to 12")

™

with

The LVU1500-LP Series Two-Wire
(“Four-Wire” for four wire unit),
non-contact continuous level
transmitter, is easy to program,
can be used in hazardous locations,
and offers unique stainless steel
and ³⁄₄ NPT sensors. It is a great
choice for sanitary, hazardous, dirty,
corrosive or high purity processes.
The 4 to 20 mA output is compatible
with all control systems and updates
quickly making the LVU1500 Series
the right choice for fast filling
processes.

The LVU1500 Series is plug-and­play. Digital signal processing,
and automatic temperature
compensation eliminates all
adjustment except zero and span.
Zero and span calibration is set
directly in inches using digital
switches and requires no power.
The rugged epoxy coated aluminum
enclosure survives where plastic
enclosures fail.

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LVU1506-LP (above) and
LVU1502-LP (left), shown
smaller than actual size.

Operation

The sensor is mounted on the top
of the tank. The electronics generate
an electronic signal that is converted
by the sensor to ultrasonic pulses
that are transmitted through
air space.

At the liquid/air interface, the pulses
are reflected back to the sensor.
These echoes are received by the
microprocessor in the electronics,
which samples the echoes and
calculates the level in the tank.

A continous output of 4 to 20 mA
(isolated) adjustable in increments of
1"/0.1" over entire span is provided
to satisfy a number of applications.
Programming is done through a pair
of BCD switches.

SPECIFICATIONS

Range: 0.3 to 7.6 m (1 to 25')
Output Accuracy: 0.25% of full scale
Repeatability:
Four Wire: 3.2 mm (
Loop Power:

± 0.13 mm (± 0.005") typical
Input Power:
Four Wire: 24 Vdc
Loop Power: 18 Vdc to 36 Vdc

Two Wire: Loop Power
Output Signal:

Four Wire: 4 to 20 mA DC (isolated),

2 to 10 Vdc

Loop Power: 4 to 20 mA DC

Lost Echo Indicator:
Four Wire: LED Flashes

Two Wire: LED Flashes and output
at 22.0 mA
Temperature Compensation:
Automatic over full range of sensor
operating temperature

1

⁄8") typical

(isolated)

Controls: Programmable zero and span,
height & distance-mode through BCD
switches increments of 25 mm (1") up to

7.6 m (300"), increments of

2.5 mm (0.1") up to 2.5 m (99.9")
Temperature Range:
Sensor: -29 to 82°C (-20 to 180°F)

Electronics: -29 to 77°C (-20 to 170°F)
Sensor Pressure Rating:

316LSS: 17.2 bar (100 psig)
ETFE:
Sensor Construction:
ETFE or 316 LSS or PTFE
Electronics Enclosures:
NEMA-4/7 Explosion-Proof:
Class I, Divisions 1 or 2 Groups B,
C & D, Class II, Divisions 1 and 2,
Groups E, F & G, Class III Cenelec

Mounting:
NPT and Sanitary: Up to 3 m (10')

2 NPT: Up to 6 m (20')

6.9 bar (40 psig)

3

⁄4"

LVU1506, shown
smaller than actual size.

To Order Visit omega.com/lvu1501 for Pricing and Details

Model No. Liquid Range mm (inch) Sensor Length mm (inch) Sensor Mounting
Loop Powered

LVU1501-LP 150 to 3000 (5.9 to 118) 254 (10) 316LSS ³⁄₄ NPT
LVU1502-LP 150 to 3000 (5.9 to 118) 254 (10) 316LSS Sanitary 1"
LVU1503-LP 150 to 3000 (5.9 to 118) 254 (10) 316LSS Sanitary 1¹⁄₂"
LVU1504-LP 150 to 3000 (5.9 to 118) 50.8 (2) PTFE ³⁄₄ NPT
LVU1505-LP 150 to 3000 (5.9 to 118) 50.8 (2) PTFE Sanitary 1"
LVU1506-LP 150 to 3000 (5.9 to 118) 25.4 (1) ETFE ³⁄₄ NPT
LVU1508-LP 300 to 7600 (11.8 to 299) 254 (10) 316LSS 2 NPT

Four Wire

LVU1501 150 to 3000 (5.9 to 118) 254 (10) 316LSS ³⁄₄ NPT
LVU1502 150 to 3000 (5.9 to 118) 254 (10) 316LSS Sanitary 1"
LVU1504 150 to 3000 (5.9 to 118) 50.8 (2) PTFE ³⁄₄ NPT
LVU1505 150 to 3000 (5.9 to 118) 50.8 (2) PTFE Sanitary 1"
LVU1506 150 to 3000 (5.9 to 118) 25.4 (1) ETFE ³⁄₄ NPT
LVU1508 300 to 7600 (11.8 to 299) 254 (10) 316LSS 2 NPT

Accessories

Model No. Description

CNi3233 ¹⁄₃₂ DIN controller, visit omega.com/lvu1501 for more details
DPi32 ¹⁄₃₂ DIN panel meter, visit omega.com/lvu1501 for more details
70A-1 Continuous tone alarm
PSR-24S 24 Vdc regulated power supply, 90 to 264 Vac supply

Comes complete with operator’s manual.

Ordering Examples: LVU1502-LP, loop powered transmitter with 1" sanitary fitting.
LVU1504, four wire transmitter with 3⁄4 NPT fitting.

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