For Fuel Gas Control

Ultrasonic Flowmeter

UX

Co-developed with Tokyo Gas

High performance over a wide range
Measures the ﬂow accurately at lower rate than ever.
A wide range of 1:50 from min. to max. ﬂow has been achieved.

DUST

No ﬁlter is required.

Space saving with no straightpipe required

Battery replaceable on site

Various output modes

Dust-proof, high durability

Battery type (for ﬁve-year operation) is nowavailable. The battery can be replaced on the site(with the dedicated lithium battery). AC powertype (24VDC, 100VAC) is also available.

Measures the ﬂow accurately even when attached toan elbow pipe, making the ﬂowmeter suitable for
installation at a small area.

In addition to the unit pulse, 4-20mA and RS485(Modbus/RTU compatible) are provided.

Application■ Measurement of low heat value (e.g. food) ■ Small-sized furnace (e.g. melting pot)
■ Flow monitoring of glass furnace (e.g. for ampoule, light bulb) ■ Atmosphere control in furnace

Specifications
ModelPower supply
Connection caliber
Target gas type *2
Liquid temperature
Flow range
Actual flow rate *3
PrecisionTemperature
Low flow cut
Maximum pressure
Pressure loss
Rated voltage
Power consumption
Environmental temperature

UX15(25)-ODC
External power supply 24VDC

SubFlow direction
Installation position
Simple standard *6Conversion
function
Simple normal *6
Main materials of gas connection partProtection structure
WeightUX15(25)-OAC
UX15(25)-OBT
External power supply 100VAC
Dedicated lithium battery *1
UX15:Rc1/2 UX25: Rc1
City gas (13A), butane (butane 70% and propane 30%), propane (propane 98% and butane 2%), nitrogen-10 to +60 ℃ (no condensation)
0.12 to 6 m3/h
±2%RD (6m3/h or less to 0.6m3/h or more), ±0.5%FS (6m3/h or less to 0.12m3/h or more)±1.5 ℃
0.024m3/h (maximum flow rate/250)
100 kPa200Pa or less (city gas 13A, standard atmospheric pressure +2.5kPa, maximum flow rate)
21.6 to 26.4 VDC
85 to 115 VAC
2W or less (@26.4V/22mA)
10W or less (@22mA)-20 to +70 ℃ *No condensation
4 to 20mADC (load resistance 400Ω or less) Choose from instantaneous flow rate andtemperature.
Unit pulse (Choose from 1, 10, 100, 1000, 10000L/P, default 1000L/P), duty 20 to 80%
Nch open drain output (maximum load 24VDC, 50mA)
Choose from low battery voltage and upper
Choose from upper and lower limit alarm and upper limit alarm for integrated value
and lower limit alarm
RS485 Modbus/RTU compatible (Choose from 4800/9600bps)
0.5 sec
2 sec
Integrated flow amount: 8-digit integer with 2 decimal places, integrated trip flow amount: 7-digit integer with 2 decimal places
Ultrasonic measurement error, temperature measurement error, battery voltage error (built-in battery only)
Instantaneous flow rate display: 5 digits, temperature display: 3 digits, pressure display: 4 digits
Left to right or right to left facing the display *Choose upon order.
Horizontal or vertical (installation not available with display facing down and cable entry part facing up)
Flow rate converted from actual flow rate at conversion reference temperature and 1 atmospheric pressure (with arbitrary fixed pressured entered)
Flow rate converted from actual flow rate at 0℃ and 1 atmospheric pressure (with arbitrary fixed pressured entered)
Aluminum allow, PPS
Indoor and outdoor IP64 (JIS C 0920) Direct sunlight should be avoided.
1.6 kg
1.7 kg
1.8 kgExternal dimensions

Unit: mmAnalog
OutputOutput 1(flow rate pulse)
Output 2 (alarm)Communication *4
Measurement interval *5
Main

Display*1 The battery life is five years (at average environmental temperature 20 ℃), and the battery can be replaced on the site. *2 The gas type can be changed on the site.
*3 The actual flow rate refers to the volume flow rate (flow rate before compensation). *4 The communications specifications are available on our web site.
*5 The moving average can be selected from 1 to 16 times (default: 4 times). *6 The term "simple" here means that the pressure value is compensated by an arbitrary value (fixed value).

142

106

114

75160

195

Model code
Basic model
UX

Caliber–Pressure sensor

1525

0

Power supply

BTDC
AC–

Flow direction–LR

Gas type

13APROBTN
N2Description
UX
15A
25A
Without pressure sensor
Battery driven
DC power
AC power
Left to right
Right to left
13A
PropaneButaneNitrogenTechnical specifications in this catalog are up-to-date as of June 2020.

Manufactured and Distributed by

Aichi tokei denki co.,ltd.

URL：https://www.aichitokei.net/

1-2-70 Chitose, Atsuta-ku, Nagoya, 456-8691, JapanFor inquires, please contact us.
Overseas Business Division TEL +81-(0)52-661-5150

To Our Customers

Please understand that product specifications may be changed without noticein order to improve performance. We are always happy to provide the latest
catalogs and brochures, and respond to inquiries made to our offices.

1.3

202006-UX15-000