Product Specifications
Ultrasonic Flow Meter for Fuel Gas(Internal Battery Type)

Reliability
Creativity Service

Ver. 9

1/4

UX [Nominal diameter] - [Pressure] BT- [Flow direction] - [Gas type]

Model

1. Specifications
 ModelUX [Nominal diameter] - [Pressure] BT - [Flow direction] - [Gas type]

Nominaldiameter
 40
 50

Pressure

Flow direction

 0 (Type without pressure sensor)
 100 ( Type with pressure sensor )Gas type L (left to right)

 13A(city gas 13A)

 R (right to left)

 PRO(propane) D (Downward)

 BTN(butane) U (Upward) N2(nitrogen) AR(argon)

Connection diameter
ModelConnection
diameter

UX40

UX50

Rc1・1/2

Rc2[m3/h]

Flow range (Actual flow)
ModelGas type
Flowrange

UX40
13A, PRO, BTN, N2, AR+1.6 to 80

UX50
13A, N2, AR

PRO, BTN+3.0 to 150+3.0 to 80

Accuracy

Accuracy• Flow measurement accuracy (Actual flow)[m3/h]
Model
UX40
UX50
Gas type
13A, PRO, BTN, N2, AR
13A, N2, AR
PRO, BTN±0.5%FS+1.6 to 8.0+3.0 to 15.0±1.0%FS+3.0 to 15.0±4.0%RD*+8.0 to 80+15.0 to 150+15.0 to 80* In case a distance from an elbow of minimum 10D in the upstream side and 5D in the downstreamside of the meter can be secured: ±2.0%RD• Conversion accuracy±1.5%RD (at 100 kPa, 23°C)
Conversion standard temperature
Conversion standard pressure: -10 to +60°C (In unit of 1°C)
: 0.00 to 10.00 kPa(In unit of0.01 kPa, gauge pressure)
Atmospheric pressure under operating environment : 0.0 to 200.0 kPa(In unit of 0.1 kPa, absolute pressure)Low flow cutoff

In case the measurement flow is lower than Qcut, 0 ㎥/h is displayed for
instantaneous flow
Qcut (can be changed by button operation and communication)
Model
Initial setting value

UX40+0.3

UX50+0.6

Unit: Correlated to unit of sub display value
Response-ability Instantaneous flow displayvalue
Pressure display value
Temperature display value"" are selectable items.

2 seconds(Smoothing by moving average method(initial setting value: 4 times))
10 seconds (Smoothing by moving average method(initial setting value: 10 times))
10 seconds

Product Specifications
Ultrasonic Flow Meter for Fuel Gas
Reliability
Creativity Service

Display(Internal Battery Type)

Ver. 9Model

2/4

UX [Nominal diameter] - [Pressure] BT- [Flow direction] - [Gas type]

Main display : The following is switched and selected using the “left button”.
Accumulated flow volume (m3)·Trip accumulated flow volume (m3)
Sub display : The following is switched and selected using the “right button”.
Conversion flow typeInstantaneous flow (m3/h)·Pressure (kPaG)·
Temperature (°C)
Actual flow typeInstantaneous flow (m3/h)·Working gas pressure setting
value (kPaG)·Temperature (°C)

Number of digits displayed
Main display
Accumulated flow volume (Forward flow) [m 3]: 00000000.0*
Trip accumulated flow volume (Forward flow) [m3 ] :ト 0000000.0*
Unit: Selected by button operation and communication
When NORMAL flow isselected
NORMAL m 3

When standard flow isselectedStandard m 3

9 digits
8 digits

When actual flow
is selectedm3*When Actual flow display (m3) is selected, "Forward accumulated flow volume" and"Forward trip accumulated flow volume" are displayed with 2 decimal places.
Sub display
Instantaneous flow [m 3/h]: 000.00 (less than 1000)
0000.0 (1000 or more and less than 10000)
00000 (10000 or more)
Unit: Selected by button operation and communication
When NORMAL flow isselected
NORMAL m 3/h

When standard flow isselectedStandard m 3/h

5 digits
5 digits
5 digits

When actual flow is
selectedm 3/hPressure [kPa]: 0000.0 (Type with pressure sensor)
5 digits
000.00 (Type without pressure sensor)
5 digits* In the type without pressure sensor, the working gas pressure setting value is displayed.

Temperature [°C]

: 00.03 digits

Contact output Nch open drain output 2 channels• Pulse output Nch open drain output 1 channel
Pulse unit: 1000 L/P (Initial setting value) (Can be changed by button operation)(Can be changed to 10, 100, 1000 and 10000 L/P)
Maximum load
Duty
Saturated voltage when ON
Current when OFF
Maximum frequency: 26.4 VDC·50 mA: 20 to 80%: 1.5 V or less
: 50 μA or less: 10 HzProduct Specifications

Ver. 9Ultrasonic Flow Meter for Fuel Gas
Reliability
Creativity Service(Internal Battery Type)

Model

3/4

UX [Nominal diameter] - [Pressure] BT- [Flow direction] - [Gas type]• Alarm output Nch open drain output 1 channel
Battery voltage decrease alarm and flow upper or lower limit alarm (Either one is selectedby button operation)
Battery voltage decrease alarm
When five years have passed since a battery is installed, an alarm signal is output as abattery replacement period.
Flow upper and lower limit alarm output
When the instantaneous flow becomes higher or lower than the set flow, an alarm signal
is output.
(The alarm output upper and lower limit flow and alarm judgment value hysteresis width
can be set by button operation.)
Measurable fluid

City gas (13A), butane (butane 70%, propane 30%),propane (propane 98%, butane 2%), nitrogen, argon

Working fluid temperature-10 to +60°C

Working pressure

0 to 100 kPa (gauge pressure)

Working ambient temperature-10 to +60°C

90%RH or less (There must be no condensation)

Storage ambient temperature-20 to +70°C

90%RH or less (There must be no condensation)

Power supply

Internal lithium battery Battery life: 5 years (At environment temperature of20°C and humidity of 65%RH)*A lithium battery can be replaced on-site.
ModelCR17450A
Number of pieces
Six pieces
Lithium content
0.85 g (per piece)
Type
Assembled battery

Protection structure

IP 64 (JIS C0920: dust-proof, splash-proof type) which can be installed
outdoors

Flow direction

Free in upward, downward, left to right, and right to left (Direction indicatedby arrow is forward flow)

Installation position

Horizontal or vertical (Cannot be installed with the position that the display
portion faces downward or the cable introduction portion faces upward)

Pressure drop

500 Pa or less (Air, standard atmospheric pressure, at maximum flow)

MassModel
Mass

Material

 Measurement portion:Engineering plastic (PPS etc.)
 Outer casing:Stainless alloy
 Sensor rubber: FVMQ (Fluoro silicone rubber)
Display potion casing :Aluminum alloy*○ symbol indicates the gas contacting parts.

Standard working period

10 years (At ambient temperature of 20°C and ambient humidity of 65%RH)*10 years is not the warranty period

Accessories

M4 Hexagonal wrench, sunshade cover (Optional Accessories)

UX40
4.8 kg

UX50
6.4 kgProduct Specifications
Ultrasonic Flow Meter for Fuel Gas
Reliability
Creativity Service

Others(Internal Battery Type)

Ver. 9Model

4/4

UX [Nominal diameter] - [Pressure] BT- [Flow direction] - [Gas type]CE marking, UKCA marking, RoHS Directive compliant

2. Precautions in handling
2-1. Installation environment(1) Although the high weather-proof electronic display is adopted, in case of installation at a placesubjected to direct sunlight, provide a sunshade.
(2) Do not install the flow meter at a place with much electromagnetic noise, in corrosive atmosphere, orwith high humidity liable to cause dew condensation.
(3) This product is designed for outdoor installation, but avoid areas where there is a risk of water
submergence and water always splashes.
(4) The GND (signal ground) is connected to the casing. Take the following measures, as necessary.
・For DC24V type, use an insulation type power supply.
・Install a pulse isolator to isolate signals between the flow meter and a receiver.
・Use an insulating bolt, insulating washer, etc., to isolate the casing and pipes.
(5)
The meters do not conform to ATEX (explosion-proof) directive (2014/34/EU).
2-2. Piping conditions(1) In case propane or butane is the fluid to be flown, make sure to use the flow meter under conditions
that the fluid does not become oil mist state due to re-liquefaction, etc.
(2) Even though the meter is installed indoor, it cannot be installed with the position that the display
portion faces downward or the cable introduction portion faces upward.
(3) When installing it at the upstream or downstream of the governor, install it 10D or more away fromthe governor.