Omega Products LVU41-RS232 User Manual
K-12
K
⻬ RS232 or RS485
Communications
Available
⻬ Programmable
⻬ Pushbutton Calibration
⻬ Elimination of
Unwanted Echoes
⻬ Temperature
Compensated
⻬ Field/Bench Calibration
⻬ Self-Cleaning
Sensor Face
⻬ Non-Volatile Memory
(Batteries Not Required)
The LVU40 Series consists of
advanced ultrasonic level
measurement sensors for liquids.
These products continue to prove
useful in demanding applications.
The microprocessor-based circuits
provide a temperature-compensated
signal for improved accuracy. All
models have the ability to filter false
echoes produced by peripheral
obstructions.
These transmitters can perform
continuous level measurement in a
range of 0.3 to 18.3 m (1.0 to 60'),
with several power and
programmability options. Point level
can also be obtained by using a
PLC (programmable logic
controller) or one of OMEGA’s CNi
Series process controllers.
SPECIFICATIONS
Accuracy: ±0.25% of max
range (in air)
Range: 0.3 to 18.3 m (1 to 60')
Resolution: 6.9 mm (0.270")
Frequency: 45 kHz
Dead Zone Range: 0.3 m (1')
Operating Temperature Range:
-40 to 60°C (-40 to 140°F)
Pressure: 1 bar (15 psig max)
Mounting: 3 NPT
Beam Angle: 6 to 12° at -3 dB
(model dependent)
Loss of Echo Hold:
30 seconds, 22 mA output
Comes complete with software and operator’s manual.
Ordering Examples: LVU42-RS485, 4-wire ultrasonic transmitter with RS485, $1400.
LVU41-RS232, 3-wire ultrasonic level transmitter with RS232, $1150.
Model No. Price Description
CNi3233 $195
1
⁄
32 DIN controller with relays, see page M-41 for details
DPi32 150
1
⁄
32 DIN panel meter, see page M-37 for details
PSR-24S 60 Regulated power supply, 90 to 264 Vac input,
24 Vdc output, 400 mA, screw terminals, UL
PSR-24L 60 Regulated power supply, 90 to 264 Vac input,
24 Vdc output, 400 mA, stripped leads, UL
PSR-24L-230 60 Regulated power supply, 230 Vac input, 24 Vdc output,
400 mA, stripped leads, CE
Accessories
To Order
(Specify Model Number)
Model No. Price Description
LVU41-RS232 $1150 3-wire 12 to 30 Vdc ultrasonic level transmitter
with RS232 communications and Windows software
LVU41-RS485 1150 3-wire 12 to 30 Vdc ultrasonic level transmitter with
RS485 communications and Windows software
LVU42-RS232 1200 4-wire 115 Vac ultrasonic level transmitter with
RS232 communications and Windows software
LVU42-RS485 1400 4-wire 115 Vac ultrasonic level transmitter with
RS485 communications and Windows software
Temperature Compensation:
Onboard the sensor
Calibration: Pushbutton or optional
programmable
Diagnostics (Echo Profile):
Via optional programmable port
Approval: Entela, CE
Conduit Entry:
1
⁄2 NPT hole (PVC only)
Enclosure: Aluminum with PVC antenna
ingress protection [NEMA 4X (IP66)]
Housing Dimensions:
101.6 x 226.1 m (4 x 8.9")
Sensor Diameter: 76.2 mm (3")
ULTRASONIC NON-CONTACT
LEVEL TRANSMITTER
For 0.3 to 18.3 m (1 to 60')
LVU41
Starts at
$
1150
LVU41-RS232, $1150, shown
smaller than actual size.
CNi833, $310, shown
smaller than actual
size (see page M-41).
Power Options:
AC: 115 Vac, 60 Hz or 230 Vac,
50 Hz (±20%) 1.7 VA
DC: 12 to 30 Vdc @ 0.07 A,
@ 24 Vdc R load = (Vs – 6)/24 mA
Output: 4 to 20 mA or 20 to 4 mA,
6.1 µA resolution; 750 Ω (isolated on
4-wire models only)
Optional: RS232 or RS485
communications port
Fuse: 0.125 A/250 V type
MOST POPULAR MODELS HIGHLIGHTED!
Recommended Reference Book: The Consumer Guide to Non-Contact
Level Gauges, FW-205, $250. See Section Y for Additional Books.
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