UW3000ULTRASONIC LEVEL MONITOROUTLINEThe UW3000 is a compact, lightweight ultrasonic level monitor withexcellent cost performance.
The compact polypropylene body features a clean structure, which
is ideal for managing the level of pure water, chemicals, and otherliquids.
The DSP function ensures stable distance measurement.
The graphic LCD shows reflection waveforms that are usefulduring installation and maintenance. In addition, the UW3000 canmask obstacles within the beam angle to avoid the influence ofunnecessary reflection on measurement. Remote management canbe achieved with 4–20 mA DC output, high and low limit alarms,and RS485 (MODBUS) communication.
The UW3000 operates in the weir flowmeter mode as standard,enabling flow rates to be measured at V-notch and suppressed
rectangular weirs.

FEATURES❏ Compact, lightweight, and inexpensive❏ Simple and clean construction made of polypropylene❏ Can be used for semiconductor process tanks and food tanks
since the UW3000 can measure levels without contacting thetarget liquid.
❏ The DSP function ensures stable distance measurement.
❏ The built-in graphic LCD indicates levels and ultrasonic reflection
waveforms. Data can be set and changed easily with the key
switches and LCD display.
❏ Can mask obstacles within the beam angle for accurate
measurement.
❏ Can be remotely managed through 4–20 mA DC output, 2-point
alarm output, and RS485 communication.
❏ Can measure distances of up to 10 m.
❏ Available with CE marking

SPECIFICATIONS● Measured object: Liquids: Max. 10 m
● Dead zone (from the membrane) : Min. 0.3 m● Frequency: 50 kHz (45 to 55 kHz)● Beam angle: 7 degrees (half)● Operating mode
: Level meter mode
Weir flowmeter mode● Display (built-in):Display
Graphic LCD (128 × 64 dots)
Parameter display(switching with the key switches)
Level meter mode:
TOP-based distance display
BOTTOM-based leveldisplay% display
Ultrasonic reflection
waveform display
Weir flowmeter mode:
Weir flowmeter display
BOTTOM-based level display% display
Ultrasonic reflection
waveform display
Distance unit:m● Measurement distance

Resolution: 1 mm: ±0.25%F.S.
● Setting (set by using the built-in key switches)
Display mode, current output, high and low limits of alarm
output, weir flowmeter, and ultrasonic reflection waveform● Output function:Current output
4–20 mA DC±0.02 mA, max.
load resistance of 500Ω
Alarm output
Upper and lower, NPN opencollector
Rating capacity: Max. 30 V DCand 0.1 A
Digital output
RS485 MODBUS (RTU)(Transmission distance: Up to1200 m)● Power supply: 12–24 V DC±10%● Power consumption: Less than 3 W● Operating temperature: −20°C to +70°C (no freezing, nocondensation)● Ambient humidity: Up to 80% (31°C)● Operating pressure: Atmospheric pressure● Storage temperature: −30°C to +80°C (no freezing, nocondensation)● Material:Main body and cover: Polypropylene (PP)
Membrane: Polypropylene (PP)O-ring: Fluororubber (FKM)● Installation: G2 (PF2) male thread● Protection class: IP65 (IP20 when the cover is open)● Memory backup: FERAM● Mass: 350 g (excluding cables)● Cable: Cable length: 10 m (with awaterproof connector)
8 cores × 0.3 mm2 (with a shield)
Finished outside diameter:
Approx. 7 mm
● Display accuracy

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UW3000 ULTRASONIC LEVEL MONITORINSTALLATION● Install the UW3000 on the top of a tank horizontally.
● Prepare a base with a G2 screw hole and screw the UW3000 into it.
● To prevent incorrect measurement, use resin nuts or flanges, not metal ones.

● Installation example

Membrane

In the threaded socket

In the threaded flangePrecautions❏ Screw in the UW3000 by hand. Do not overtighten; doing so may damage the UW3000.
❏ Do not install multiple units in a vessel; they will interfere with each other and make measurement impossible.
❏ Install the UW3000 so that the membrane intrudes into the vessel.
❏ When installing the UW3000 in a nozzle, make sure that there is no unevenness on the inner side of the nozzle and that the inner diameterof the nozzle is larger than the length.
❏ Cover the UW3000 with a sunshade to avoid direct sunlight.
❏ Make sure that the sound robe is clear of obstacles. These are inner structures such as ladders, temperature sensors, and the inlet streamof liquids.
❏ Install the UW3000 as far away as possible from obstacles.
❏ Make sure that the sound robe is not affected by the nozzle or the vessel wall.
❏ Use the provided O-ring to ensure the proper emission of ultrasound. Do not install the UW3000 on a thin plate.

Sound robe (beam angle)

14°LRL (m)
0.3
0.50
1.00
2.00
4.00
5.00
7.00
8.00
10.00

R (m)
0.07
0.09
0.15
0.28
0.52
0.64
0.89
1.01
1.26

● Notes on installation

Make sure there are no bumps such as
welding beads and burrs on the inner sideof the nozzle.

2TOKYO KEISO CO., LTD.

Make sure that the sound robe is notaffected by the nozzle.

Place a sunshade to avoid direct
sunlight.

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UW3000 ULTRASONIC LEVEL MONITOR

Installation location❏ Install the UW3000 in a place where no object causes interference, parallel to the measured surface.
❏ Ensure at least 200 mm away from the vessel wall (in order to avoid noise that may cause malfunctions).
❏ Avoid a place close to the center of the vessel. It may cause multiple reflections, particularly in conical or dome roof tanks.
❏ Strong waves or foam on the measured surface or dense vapor and gas make measurement impossible.

Installation example≥200

1/2 to 2/3 of the radius of the vessel

Atmosphericpressure−20 to +70°C

No obstacles

Avoid close to the inlet nozzle
and other structures.

Avoid strong waves and foamon the measured surface.

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Use an arm for pit or canalmeasurement.

Use within operating temperatureand pressure ranges.

Avoid close to the center of the vessel.

Install the membrane parallel to themeasured surface.

Avoid dense vapor and gas
in the vessel.

TOKYO KEISO CO., LTD.

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UW3000 ULTRASONIC LEVEL MONITORDIMENSIONSFOUR DISPLAYS
ø93TOP-based distance display

70(Distance from the membrane to thesurface)

40110

BOTTOM-based level display

O-ring

ø56

Membrane(Distance from 0% to the surface)% display(Rate of the remaining amount in
the tank and current output value)

Ultrasonic reﬂection
waveform display

G2 (PF2)
This display is useful for solving
problems because it enables the waveforms to be checked during installationand maintenance.

A

DC+

Red

DC–Black

Upper limit
alarm relay

12 to 24 V DC

Lower limit
alarm relay

Power source

WIRING

Yellow

White

RS485 (A+)

Orange

RS485 (B‒)

Brown

Output 4–20mA

GreenBlue
ShieldMODEL CODE

ORDERING INSTRUCTIONS

Model: UW3000
Model code
UW3200

Optional/RS

Red lead wire.......... 12 to 24 VDC (+)
Black lead wire ....... 12 to 24 VDC (−)
Yellow lead wire ...... Upper limit alarm switch (open collectoroutput, NPN)White lead wire ....... Lower limit alarm switch (open collector
output, NPN)
Orange lead wire .... RS485 (A+)
Brown lead wire ...... RS485 (B−)
Green lead wire ...... 4–20 mA output (+)
Blue lead wire ......... GND (−) (upper/lower limit alarm switch,
4–20 mA output)
Shielded wire .......... Grounding (connected to the blue lead wire
and to the ground)
Note: Output ratings of upper/lower limit alarms is 30 V / 0.1A.
When a relay etc. is connected, the output rating of relay to
be used must be within the above voltage and current.

Description
Measurement distance: Max. 10 m
To be delivered with specified
parameters*If parameters are not specified,
the UW3000 will be shipped withthe default settings.

1. Model code
Example: UW3200
2. Optional specifications (specify only when necessary)Specify optional items with /RS.
Example: UW3200/RS
Specify a 4 mA output position, a 20 mA output position, andhigh and low limit alarm positions (when necessary) as thedistance from the membrane.

* Specification is subject to change without notice.

Head Office : Shiba Toho Building, 1 – 7 – 24 Shibakoen, Minato-ku, Tokyo 105 – 8558
Tel : +81-3 – 3431 – 1625 (KEY) ; Fax : +81-3 – 3433 – 4922
e-mail : overseas.sales@tokyokeiso.co.jp ; URL : http://www.tokyokeiso.co.jp
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