Ultrasonic Flow Meter forManagement of Fuel Gas
ATZTA

UX/UZ

Model： UX40 UX50
UZ40 UZ50
Operation ManualIntroduction
Thank you very much for purchasing the High performance Ultrasonic Flow Meter UX/UZ
Series for Fuel Gas this time. Please be sure to read this Operation Manual to use thisproduct correctly and safely and to prevent accident.
Please arrange for operators who actually use this product to know the context of thisOperation Manual surely. This Operation Manual is necessary for performing maintenance,
too. Please keep the Manual in a safe place until this product is disposed of.

Confirmation of package contents
Upon delivery of the product, confirm that the following items are contained in the package
before using the product:
Name

Quantity

Ultrasonic flow meter1

Operation manual (thisdocument)

1

Hexagonal wrench

1Flange gasket

2

Option8

OptionBolt set(Bolts, plain washers, nuts)

Remarks

If there is any incorrect item , shortage, or any defect in the external appearance, pleasecontact your nearest branch or sales office.

Safety concerns
To ensure the safe use of this product and to prevent an accident or an
unexpected situation, instructions to which attention must be paid are indicatedwith the following symbols.
Structure of warning indications
Incorrect handling by ignoring to follow instructions of this symbol may

DangerWarning

lead to imminent danger of death or serious injury.

Incorrect handling by ignoring to follow instructions of this symbol may
lead to possibility of death or serious injury.

Incorrect handling by ignoring to follow instructions of this symbol may

Cautionlead to injury and/or properties loss (product damage, etc.).

This symbol indicates acts requiring “caution” and that improper operation
may result in an accident.
This symbol indicates “prohibited” acts.

This symbol indicates “mandatory” acts that you should observe strictly.

Precautions for use
1.

Do not use for applications that require safety, such as nuclear,
railroad, aircraft, vehicle, playground equipment, etc.

2.

Do not modify the product.

3.

Do not use the product for foods, drinks, medical purposes, etc.,
because it is not designed for sanitary specifications.

4.

Do not use the product in the atmosphere of an inflammable gas, etc.,
because it is not designed for explosion-proof specifications. The meters
do not conform to ATEX (explosion-proof) directive (2014/34/EU).

DangerWorking environment and applicable fluid

Caution1.

Do not use gases any other than city gas (13A), propane gas, butane,
nitrogen gas, and argon.

2.

Observe the temperature and humidity ranges (-10 to +60°C and
90%RH or lower) and operating pressure range ([UX] 0 to 100 kPa(gauge pressure), [UZ] 0 to 500 kPa (gauge pressure) in use.

3.

Avoid usage in an atmosphere containing a corrosive gas (chlorine,hydrogen sulfide, etc.) and/or for an application to a fluid containing a
corrosive gas.

4.

This product is not of a perfect waterproof structure (IP64). Do notinstall it at a place that may be submerged in water.

5.

Install the flow meter as far away from an electric noise source aspossible. If you install the flow meter near an electric noise source, it isrecommended to use a shield wire as a cable which is connected to
the flow meter. In this case, ground the shield wire to FG of any device
other than the flow meter.

6.

The installation of a sunshade is recommended if the flow meter is
exposed to direct sunlight.

7.

If you use the flow meter for propane or butane, use it under conditions
where there is no oil mist state due to re-liquefaction, etc. If oil mist isaffixed inside the flow meter, it may cause a failure in flow-rate
measurement, resulting in incorrect measurement.

8.

The accuracy stipulated in the specifications may not be satisfied
under the environment where there is pulsation. It is recommended to
install the flow meter at a location where there is little pulsation.

9.

If sharp pressure change occurs, such as when gas in the pipe isdischarged, correct measurement may not be performed. For thisreason, after the fluid is changed to the subject fluid for measurement,
reboot the power or reconnect the battery while no fluid flows (0 m3/h).

10. For the actual flow rate type, set the gas pressure value (gaugepressure) [F5]. (If the setting value and actual pressure do not match,the flow-rate measurement accuracy may not be satisfied.)
11. When you use the flow-rate conversion function at high elevations, set
the atmospheric pressure of the working environment [F19]. (If thissetting is not made, a range caused by conversion may becomelarger.)

Working environment and applicable fluid
12. When installing it at the upstream or downstream of the governor,
install it 10D or more away from the governor. (An incorrect flow-rate
measurement may occur due to an effect of the governor.)

Caution

13. After the subject fluid for measurement is set, turn on the power while
no fluid flows (0 m3/h).
14. Since the variance of the instantaneous flow-rate may become larger
due to an effect of the governor, it is recommended to set 16 times tothe instantaneous flow-rate moving average number of times.

Cautions for operations

CautionThis product is not a specified measuring instrument defined in Japanesemeasurement law.

Storage
1.

Store the flow meter at a place away from fire and not exposed todirect sunlight.

Caution2.

Do not place any combustible material, inflammable substance andheating body in the periphery of the flow meter.

3.

Store this product at a place whose ambient temperature is -20 to+70°C and where no dew condensation occurs.

Piping

Warning

1.

Do not climb on this product using it as a foothold.

2.

Do not carry and/or install this product as holding its display.

1.

When you install the flow meter, be sure to turn off its power.
After the flow meter is installed, set the subject fluid for measurement
and turn on the power while no fluid flows (0 m3/h).
In the case of new piping, install the product after sufficient cleaning of
the pipe(s).
It is recommended to use rising piping to install the flow meter if the air
contains oil mist, dust, or other materials. If oil mist and/or dust
accumulates inside this product, it may cause performance failure
and/or defects. Installation in which the display part faces downward
and the cable introduction part faces upward cannot be performed.

2.
3.

◎

Recommended△○

Correct△

Not recommended

Not recommended

×

Incorrect

×

Incorrect

Caution4.

Do not install the flow meter in sections where it will be subjected tosignificant compression forces, tensile loads, and other loads after it isinstalled.

5.

Install the product along with the flow direction indicated on the product.

6.

Do not drop the product, hit it, or apply excessive impact.

7.

When turning the display unit, do not apply force to any direction otherthan the rotational direction.
In case any force is applied to direction to pull up or pushdown the display, the display may come off which can lead to breakingof the internal wires, etc., or may not rotate smoothly.
When making piping connections, make sure that foreign material suchas weld chips, debris, and sealant do not make their way into the pipe.

8.
9.

When tightening the pipe, do not apply excessive torque.

10. For the basic type of UZ, use a 55-mm hex bolt to avoid interferencewith the display section and body. (Recommended bolt specification:
M16 x 55 mm).
11. Installation of a strainer (60 meshes) at the upstream side of the meteris recommended. (In case of dust adherence on the internalmechanism portion, the flow meter may not be able to satisfy themeasurement.accuracy.)

Wiring
1.

Danger

2.
3.
1.
2.
3.
4.

CautionWhen performing wiring work, follow the instructions in this Operation
Manual.
Use the product within the rating.
Do not use the product on a voltage exceeding permissible load.
Do not place the product’s external connection cable together with ornear to power supply line(s) or power line(s), etc. of other devices.
Electrical isolation of a remote counter (a receiver) from others is
recommended.
Do not pull the cable connected to the terminal mount forcibly.

Ensure that the tip of the cable connected to the terminal mount is
not soaked in water during wiring work, etc.
5. When connecting the power supply wire to the terminal mount, be
careful not to short-circuit it. Use an external power supply having ashort-circuit protecting function.
6. Be sure to perform the wiring work in a state that power supply fromthe external power supply is interrupted.
7. Do not perform operation and the wiring work with wet hands.
8. For external power supply type (24 VDC, 100 VAC), install a powerswitch to the power supply system for this product to prevent
electrical shock when connecting and disconnecting cables to andfrom a power supply terminal.
9. For external power supply type (24VDC), when you ground power
supply, ground the 0V terminal. Since the casing is conducted withGND (signal ground), if the 24V(+) terminal is grounded, it is to be
short-circuited with the FG of your device. For this reason, be sure
not to ground the 24V(+) terminal.
10. For external power supply type (100VAC), do not connect the groundwire of the cable to the flow meter.
11. For external power supply type (24 VDC, 100 VAC), do not groundthe positive terminal of the analog output line. Since the casing is
conducted with SG (0 V), if the positive terminal of the analog output
line is grounded, a current loop which bypasses analog output isformed, and analog output is not transmitted correctly.
12. Connect the internal battery when you use the flow meter. [Internal
Battery Type]*Battery life: 5 years after the power is turned ON. (Standard
conditions: Temperature 20°C, humidity 65%RH)
13. When you replace the internal battery, follow the instructions given inthis operation manual. Perform the switch operation (press SW1 andSW2 at the same time for 3 sec or more while the entire LDC isturned ON, and the symbol and unit flicker every 2 sec) and confirm
that the screen indicating completion of battery replacement isdisplayed (“1” and the symbol and unit flicker every 2 sec).

Disassembling and inspection
1.
2.

Do not disassemble this product.
When fluid flow is normal, the pilot lamp will blink. If it does not blink,please contact the company you purchased the product from or ourbranch or sales office.

Caution
Disposal

Warning1.

This product contains a lithium battery, and therefore be sure not todispose it in the general disposal route. [Internal Battery Type]2.

Be sure not to put this product into fire. It may cause fire and/or
explosion.

3.

Since the flow meter is made by putting metals and resin parts
together, it must be discarded as industrial waste.

Ultrasonic Flow Meter for Management of Fuel Gas
UX/UZ Series Operation Manual Table of contents
Introduction ............................................................................................................................. 1
Confirmation of package contents .......................................................................................... 1
Safety concerns ...................................................................................................................... 2
1. Overview ............................................................................................................................. 1
1-1. Outline of product ........................................................................................................ 1
1-2. Model configuration ..................................................................................................... 1
1-3. Name of each part ....................................................................................................... 2
1-3-1. UX ......................................................................................................................... 2
1-3-2. UZ ......................................................................................................................... 3
1-4. Dimension drawing ...................................................................................................... 4
1-4-1. UX ......................................................................................................................... 4
1-4-2. UZ ......................................................................................................................... 5
2. Before using the product .................................................................................................... 6
2-1. Connection of battery .................................................................................................. 6
2-2. Wiring connection ........................................................................................................ 8
2-3. Installation.................................................................................................................. 16
3. Start up procedure ............................................................................................................ 20
3-1. When the power is turned on .................................................................................... 20
3-1-1. Abnormal in ultrasonic measurement ................................................................. 20
3-1-2. Abnormal temperature value .............................................................................. 21
3-1-3. Aberrant pressure value ..................................................................................... 21
3-2. When operation starts ............................................................................................... 21
4. Operation Procedure ........................................................................................................ 224-1. Display of measurement values (measurement mode) ............................................ 24
4-1-1. Conversion display ............................................................................................. 24
4-1-2. Display of accumulated flow volume ............................................................... 24
4-1-3. Display of instantaneous flow-rate, temperature, pressure................................ 25
4-2. Measurement of very small flow-rate (Test mode time selection) ............................. 26
4-3. Setting of parameters (Settings mode) ..................................................................... 26
5. Alarm Display .................................................................................................................... 27
5-1. Abnormal ultrasonic measurement ............................................................................ 27

5-2. Battery replacement alarm [Internal Battery Type] .................................................... 28
5-3. Abnormal temperature value ..................................................................................... 29
5-4. Abnormal pressure value (Type with pressure sensor)............................................. 29
5-5. Abnormal compensation (Type without pressure sensor) ......................................... 29
5-6. External memory abnormality.................................................................................... 30
5-7. In the case of power outage (DC type, AC type) ....................................................... 30
6. Troubleshooting ................................................................................................................ 31
7. Specifications ................................................................................................................... 32
7-1. List ............................................................................................................................. 32
7-2. Glossary of terms used in specifications ................................................................... 34
8. Setting of parameters ....................................................................................................... 35
8-1. Details of setting items .............................................................................................. 40
Warranty and after-sale service ........................................................................................... 49
1) Warranty period ............................................................................................................ 49
2) Scope of warranty ......................................................................................................... 49
3) Requesting for service .................................................................................................. 49
4) Points to note for long-term use ................................................................................... 49

1.Overview
1-1.Outline of productThis product is an ultrasonic flow meter mainly for fuel gas and capable of measuring theflow-rate at atmospheric pressure up to 100 kPa or 500 kPa.
The flow meter is installed to pipes by screwing its taper pipe threads to the pipes or bybeing tightened between pipe flanges.
• Screw connection type (Taper pipe threads) applied model: UX• Flange type applied model: UZ
In addition, the flow meter is certified according to the following standards (except
100VAC type).
EN61326-1：2013 table2(EMS)
EN55011:2009+A1:2010 Group１ ClassA(EMI）

1-2.Model configuration
Basic
model

NominalCompensation Power
diametercategory
supply-Flowdirection-

Gas type

Description

UX

Screw connection

UZ

Flange
40

40A

50

50A
Actual flow rate type withoutcompensation
Temperature/pressurecompensation type UX
Temperature/pressurecompensation type UZ

0
100
500
BT

BT: Dedicated lithium batteryDC

DC: 24 VDC ± 10%

AC

AC: 100 VAC ± 10%

1

LLeft -> Right

R

Right -> LeftU

Down -> Up

D

Up -> Down
13A

13A

PRO

PropaneBTN

ButaneN2

Nitrogen

AR

Argon

1-3.Name of each part
1-3-1.UX
1)

Flow meter main unit

Specification name plate

Display section

Drop prevention screw(4 locations)

Cable introductory section(See 2-2. Wiring connection.)

Arrow(Fluid flowing direction)

Measurement section

Fluid inlet

2)

Fluid outlet

Display
Ultrasonic measurement
aberration

Pressure value aberration [Type with pressure sensor]
Compensation value aberration [Type without pressure sensor]
Battery replacement alarm
Temperature[Internal battery type]
External memory
measurement
aberration
aberration

Accumulated value

Instantaneous value

Pilot lamp

Left button

Center button

Right button*For button operation, refer to “4Operation Procedure”.

2

1-3-2.UZ
3)FLOW meter main unit

Specification name plate

Display section

Drop prevention screw(4 locations)

Cable introductory section(See 2-2. Wiring connection.)

Arrow(Fluid flowing direction)

Measurement section

Fluid inlet

4)

Fluid outlet

DISPLAY

Ultrasonic measurement
aberration

Pressure value aberration [Type with pressure sensor]
Compensation value aberration [Type without pressure sensor]
Battery replacement alarm
External
Temperature[Internal battery type]
memorymeasurement
aberration
aberration

Accumulated value

Instantaneous value

Pilot lamp

Left button

Center button

Right button*For button operation, refer to “4Operation Procedure”.

31-4.Dimension drawing
1-4-1.UX

R97 (Radius of gyrationof display section)

Nominal connection
diameterConnection

Size: mmdiameter

W

L

H

h

UX40

Rc1•1/2

108

170

211

157

UX50

Rc2

124

200

238

165

Model

4

1-4-2.UZ

R97 (Radius of gyrationof display section)

Model

Connection
diameterSize: mm
D

L

H

h

UZ40

JIS10K40A-RF

140

200

222

157

UZ50

JIS10K50A-RF

155

220

238

165

Use a 55-mm hex bolt to avoid interference with the display section and body.
(Recommended bolt specification: M16 x 55 mm).

5

2.Before using the productWith this flow meter, items concerning measurement, output, and communication can beset.
At the time of purchase, the standard factory delivery settings have been made, and theuser can use the flow meter as it is. Change the settings according to the usage, if needed.
The settings can be changed by button operation and RS485 communication (24 VDC typeand 100 VAC type only). For details, see 4.3 Setting of parameters in 4. Operation
Procedure.
It is recommended to perform the settings of the flow meter prior to installation.

2-1.Connection of battery
In the internal battery type, the battery is not connected upon shipment. Connect thebattery connectors correctly in accordance with the following procedure before using the
product.
1)

Loosen the screws at the 4 locations shown in the figure and open the cover.
(The screws cannot be removed from the cover to prevent them from dropping.)
Screw (M4 x 4)

2)

Connect the connectors of the battery and fix them to the hook of the battery pack.

Fix the connectors to the hook of
the battery pack.

Connect the connectorsof the battery.

Install the lead wires as shown in the photo so that they will not
be caught by the cover.

Note) If you use the product without fixing the connectors, it may cause a failure.

63)

Check that the gasket fits in the gasket groove and close the cover.
Close the cover carefully so that the earth wire and the lead wire ofbattery connector may not be caught by the cover

Lead wires of the connectorsof the battery
Ground wire

Gasket[Arrow A]
Correct

Incorrect

Correct

Incorrect

Nothing caught.

The heights are the same.
Gasket

The gasket does not fit into thegasket groove and is lifted.

4)

A lead wire caught.

Tighten the screws at the 4 locations shown in the figure.
Recommended tightening torque: 1.0 ±0.1 N•mNote) If the screws are not tightened enough or tightened with excessive torque, it
may cause entry of water and/or breakage.
Screw (M4 x 4)

[About battery life expectancy and replacement of battery]
The expected life of the internal battery is 5 years. (This is the life expectancy under the
standard conditions of temperature 20°C and humidity 65%RH. The actual life varies
according to the installed environment (piping condition (near the governor, etc.) andtemperature.)
This product contains a lithium battery, and therefore be sure not to dispose it in thegeneral disposal route.
*For replacement of the battery, please contact your nearest branch or sales office.
7

2-2.Wiring connection
When you connect an external output cable or connect a cable for external power input in
24 VDC type and 100 VAC type, insert each cable into the section shown in the figure inaccordance with the following procedure.
The GND (signal ground) is connected to the casing.
Utilize an isolated power supply or an external connection equipment, as necessary.
Note) Perform wiring connection of an external connection device in accordance with its
operation manual.
[Reference] Max. cable length: 100 m
This is the operation range under our test conditions (VCTF, 0.3 sq). The operation range
may change according to the installation environment, connection device, and cable type,etc.
Note that if you use a longer cable, signals may be attenuated, and noise is easily overlaid.

 Procedure
1) Loosen the screws at the 4 locations shown in the figure and open the cover.
The screws cannot be removed from the cover to prevent them from dropping.
Screw (M4 x 4)

The state when the cover is opened varies according to the power supply type asshown below.

24 VDC type

100 VAC type

8

Internal battery typeConnect the cable.
 Procedure to connect the cable for external output(When you do not connect the cable for external output, The procedure (1) to(4) are not required.
Applicable cable size: φ4 to 6.8 mm (Example: VCTF,0.3 sq,3 to 8 cores)
Terminal mount: M3
If you install the flow meter near an electric noise source, use a shield wire asa cable which is connected to the terminal block and ground the shield.
Applicable cable size：φ4～6.8mm （MVVS 0.3sq 2-core to 6-core）[1] Loosen the sealing nut at the introductory part for an external output
cable and pull out the pin. Be careful not to loosen the lock nut by
mistake.

Lock nut

Sealing nut

Pin[2] Insert the cable into the introductory part for the cable.

Cable forexternal output

9

[3] Make sure that the sheath of the cable gets into the inside of the case,crimp an applicable terminal on the cable, and connect the cable to theterminal block.
Screw size: M3
Recommended tightening torque: 0.5 ±0.1 N•m*

Note that incorrect wiring may cause a failure. Note that the usable
terminal block varies according to the power supply type. (For theusage of each terminal mount, see “Terminal Connection Diagram”
affixed inside of the cover or “Wiring Connection of Each Power
Supply Type” on page 14 and 15.)The sheath of the cable
protrudes to the inside of
the case.

Crimp an applicableterminal and connect it to
the terminal mount.

[4] Tighten the sealing nut.
Recommended tightening torque: 1.0 ±0.1 N•m
If a torque wrench is not available, the method of tightening the nut at
appropriate torque is to manually tighten the sealing nut completely, ortighten it with a tool, and when you feel load, retighten it by 90° (= 1/4
rotation). Do not tighten further. (Excessive torque may damage cables,
break seal nut and cause entry of water due to seal deformation.)10Procedure to connect the cable for external power input(When you do not connect the cable for external power input, the procedure(5) to (8) are not required.)Applicable cable size: φ6.5 to 12.5 mm (Example: CV2sq2 core, CVV1.25sq2
core)
Terminal mount: M3 (in case of 24 VDC), M4 (in case of 100 VAC)
If you install the flow meter near an electric noise source, use a shield wire asa cable which is connected to the terminal mount and ground the shield.
[5] Loosen the sealing nut at the introductory part for an external power input
cable and remove the pin. Be careful not to loosen the lock nut by
mistake.

Sealing nut

Lock nutPin[6] Insert the cable into the introductory part for the cable.

Cable forexternal power
supply input

11[7] Make sure that the sheath of the cable gets into the inside of the case,crimp an applicable terminal on the cable, and connect the cable to theterminal block.
[In the case of 24 VDC type]
Screw size: M3
Recommended tightening torque: 0.5 ±0.1 N•m[In the case of 100 VAC type]
Screw size: M4
Recommended tightening torque: 1.0 ± 0.1N•mNote) The cover of the terminal mount is removed at the time of wiring
connection. Be sure to restore it after wiring connection is finished.
*

Note that incorrect wiring may cause a failure. Note that the usable
terminal mount varies according to the power supply type. (For theusage of each terminal mount, see “Terminal Connection Diagram”
affixed inside of the cover or “Wiring Connection of Each Power
Supply Type” on page 14 15.)The sheath of the cable
protrudes to the inside of
the case.

Crimp an applicableterminal and connect it to
the terminal mount.

12[8] Tighten the sealing nut.
Recommended tightening torque: 1.5 ±0.1 N•m
If a torque wrench is not available, the method of tightening the nut at
appropriate torque is to manually tighten the sealing nut completely, ortighten it with a tool, and when you feel load, retighten it by 90° (= 1/4
rotation). Do not tighten further. (Excessive torque may damage cables,
break seal nut and cause entry of water due to seal deformation.)2)

Check that the gasket fits in the gasket groove and close the cover.
Close the cover carefully so that the earth wire and the lead wire of battery
connector may not be caught by the cover.

Lead wires of the connectorsof the battery
Ground wire

Gasket[Arrow A]
Correct

Incorrect

Correct

Incorrect

Nothing is caught.

The heights are the same.
Gasket

The gasket does not fit into thegasket groove and is lifted.

13

A lead wire is caught.

3)

Tighten the screws at the 4 locations shown in the figure.
Recommended tightening torque: 1.0 ±0.1 N•mNote) If the screws are not tightened enough or tightened with excessive torque, it
may cause entry of water and/or breakage.

Screw (M4 x 4)

“Wiring Connection of Each Power Supply Type” is shown below.
For the usage of each terminal block, see “Terminal Connection Diagram” affixed
inside of the cover.

Load

Pulse output(Nch open drain
output)Alarm output(Nch open drain
Load output)

Fig.1 Wiring Connection [Internal Battery Type]

100 VAC

Pulse output(Nch open drain
output)Load

RS485
Communication

Alarm output(Nch open drain
output)Load
4 to 20 mA output

Fig 2. Wiring Connection [100 VAC Type]
14

Load

24 VDC

Load

RS485
Communication

Load

Pulse output(Nch open
drain output)

Load

Alarm output(Nch open
drain output)

4 to 20 mA output

Fig.3 Wiring Connection [24 VDC Type]

4 to 20 mA output *1

Main Circuit

Pulse output

Alarm output*2

Fig.4 Input/Output Circuit Diagram*1 Load resistance 400 Ω or less
*2 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.

Fig. 4-2 Relationship of thecasing and the GND (signal
15

ground)(Example: Pulse output)

2-3.Installation
Match the arrow on the meter with the forward flow direction of the fluid.
This product can be installed indoors or outdoors, and on either horizontal or vertical piping.
Installation in which the display part faces downward and the cable introduction part faces
upward cannot be performed.
*
It is recommended to use rising piping to install the flow meter if the air contains oil
mist, dust, or other materials. If oil mist and/or dust accumulates inside this product,
it may cause performance failure and/or defects.

◎

Recommended△○

Recommended△

Not recommended

Not recommended

×

Incorrect

×

Incorrect

The figure below shows the recommended lengths of the straight pipe sections according
to the piping condition for this flow meter. (D: Nominal diameter)
Piping condition

Upstream

Downstream

0D or longer (Straight pipe
section is not required.)

0D or longer (Straight pipe
section is not required.)

Elbow

→

→

Elbow

Elbow

0D or longer (Straight pipe
section is not required.)

0D or longer (Straight pipe
section is not required.)Flexible pipe→→
Flexible pipe

Flexible pipe

16

Condition

Upstream

Downstream

0D or longer (Straight pipe
section is not required.)

Y-shapedstrainer→

0D or longer (Straight pipe
section is not required.)→

Y-shaped strainer

Y-shaped strainer

0D or longer (Straight pipe
section is not required.)

0D or longer (Straight pipe
section is not required.)Union joint→→

Union joint

Union joint

1 opening: 0D or longer (Straightpipe section is not required.)
2 openings: 5D or longer

Enlarge pipe
(Up to 2
openings)→

0D or longer (Straight pipe
section is not required.)→

Enlarge pipe

Enlarge pipe

0D or longer (Straight pipe
section is not required.)

0D or longer (Straight pipe
section is not required.)

Narrowing pipe→→

Narrowing pipe

Narrowing pipe
0D or longer (Straight pipe
section is not required.)

5D or longer

Valve(Flow-rate isadjusted byvalve.)

→

→

Valve

Valve

17

Piping condition

Upstream

Downstream

10D or longer

10D or longer

Governor→→

Governor

Governor

20D or longer

Tee pipe→

0D or longer (Straight pipe
section is not required.)→Tee pipe

Tee pipe

This product does not have a complete waterproof structure (IP64). Do not install it at aplace that may be submerged in water.
The installation of a sunshade is recommended if the flow meter is exposed to direct
sunlight.
Screw on the tapered threads for piping using the torques shown below.
UX40: 150 N•m
UX50: 200 N•m
About piping of flange type (model: UZ)
Use a 55-mm hex bolt to avoid interference with the display section and body.
(Recommended bolt specification: M16 x 55 mm).

With flange type flow meters, make sure that the flange gaskets do not protrude into theinterior of the pipes.
Prevent the entry of foreign materials in piping, such as weld chips, dust, sealing tape andsealant such as weld chips, dust, sealing tape, and sealant do not make their way into thepipes.
In the case of new piping, install the product after sufficient cleaning of the pipe(s).
Do not install the flow meter in sections where it will be subjected to significant
compression forces, tensile loads, and other loads after it is installed.
Do not drop the product, hit it, or apply excessive impact.

18

The display section can be rotated to change its orientation. To change thedisplay's orientation, loosen the set screw at the neck section of the display using
an M4 hex wrench and then rotate the display section. Once it is in the desiredorientation, always make sure to tighten the set screw to fix the display section inplace. When rotating the display section, do not apply a force in a direction otherthan the rotating direction.
When turning the display unit, do not apply force to any direction other than therotational direction. (Applying such force may cause a failure.)
A feeling of being stuck or unsmooth rotation during the rotation is indication of
possibility that force is being applied in a direction other than the direction ofrotation. In the case, stop applying force once and check if force direction and theway ofrotation are correct.
*

The display section can be rotated by 180° clockwise and 90° counterclockwise in
the flow direction L (left to right of the display section) as seeing from the display
side. It cannot be rotated more than the rotation range.

90°

90°

90°

19

3.Start up procedure
After the subject fluid for measurement is set, turn on the power while no fluid flows (0m3/h).

3-1.When the power is turned on

When the power is turned on, check that the entire LCD is turned on, and the symbols andunits flicker every 2 sec.
The display is switched to the measurement mode in approx. 1 min.
If it is not switched to the measurement mode, the conceivable causes are as follows:

3-1-1.Abnormal in ultrasonic measurement

Check that there is no foreign material which prevents transmission of ultrasonic in the pipe
and that oil and other fluid are not affixed and stationed in the pipe, and then turn on the
power again.
When “Abnormal in ultrasonic measurement” is displayed even if no foreign material isaffixed and/or stationed, please contact the company you purchased the product from or
our branch or sales office.

20

3-1-2.Abnormal temperature value

Check that the temperature in the pipe is within the specifications, and then turn on the
power again. When “Abnormal temperature value” is displayed even if the temperature
value is correct, please contact the company you purchased the product from or our branchor sales office.

3-1-3.Aberrant pressure value

Check that the pressure in the pipe is within the specifications, and then turn on the power
again. When “Aberrant pressure value” is displayed even if the pressure value is correct,
please contact your nearest branch or sales office.

3-2.When operation starts
When you are running the meter for the first time, gradually open the valve and check thatthe pilot lamp is flickering. A flickering pilot lamp indicates that the fluid is flowing.

21

4.Operation Procedure
This product consists of the preliminary measurement mode, measurement mode, settingsmode, and test mode.
Using the 3 buttons, you can switch the modes and displays, and make various local
settings.
For arrangement of the left button, center button, and right button, see Fig 5.

Left button

Center button

Right button

Fig 5. Button arrangement
For button operations for each operation mode, follow the table below.
Table 1 Button operation for each mode
Position and name of
buttonButtonNameposition
Left

SW1

Right

SW2

Center

SW3
SW1 +
SW21)

Preliminary
measurement
mode

Completion of
replacement ofbattery*

Setting mode
Measurement mode
Switchover between
total accumulated
flow volume and trip
accumulated flow
volumeSwitchover between
instantaneous flowrate [m3/h], pressure3), and temperature.
Switchover to testmode*
Switchover to setting
mode
Clearing of trip
accumulated flow
volume 2)

Test mode

Local setting
display

Detailed setting

Switchover to thenext setting item

Switchover ofsetting contents
Change of the
flickering digit

Switchover to theprevious setting
item

Change of thevalue at flickering
digit.

Switchover tomeasurement
mode*

Switchover to measurement mode
Switchover between local setting anddetailed setting

1)
2)"SW1+SW2" denotes steps where both switches must be pressed simultaneously.
By pressing SW1 and SW2 simultaneously while the trip accumulated flow

3)volume is displayed, the trip accumulated flow volume can be cleared.
The operating gas pressure setting value is displayed in the actual flow-rate type,
and the measured pressure is displayed in the conversion flow-rate type.

*

You need to press the switches for 3 sec or more.

22

Preliminary measurement mode
Main display

All indicators ON and symbols and units
flicker every 2 sec.

Fixed to numericvalue “—“.

Right button + Left button / Completion ofbattery replacement

Preliminary
measurement
failed.

Numeric value is “1”, and symbols andunits flicker every 2 sec.

Sub display
Right button
Instantaneous
flow rate

Right button
Pressure*
Elapse of 1 min.

Right button

Temperature
Elapse of 1 min

Preliminary measurement succeeded.
Measurement mode
Main display
Forwardaccumulated flow
volumeLeft button
Trip accumulated
flow volume

Right button + Left button / Trip
accumulated flow volume is cleared.

Left button

Sub display
Right button
Instantaneous
flow rate

Right button
Pressure*
Elapse of 1 minCenter button

Center buttonorNo operation for
3 min.

Transit to settings mode

Right button
Temperature
Elapse of 1 min

Right button (3 sec.)or
Test mode is finished

Right button(3 sec.)Transit to test mode

* “Pressure” in sub display: The operating gas pressure setting value is displayed in the actual flow-rate
type, and the measured pressure is displayed in the conversion flow-rate type.

Fig. 6 Button operation in measurement mode and switchover to each mode23

4-1.Display of measurement values (measurement mode)
4-1-1.Conversion display
The partition line varies according to the conversion setting.

“Without conversion”" With conversion" With conversion(Normal conversion)"(Standard conversion)"

4-1-2.Display of accumulated flow volume
The number of digits displayed varies according to the conversion setting.
[Total accumulated flow rate](Actual flow rate type)
00000000.00 (m3) 8 integers and 2 decimal places(Conversion flow rate type) 00000000.0 (m3)

8 integers and 1 decimal place[Trip accumulated flow rate](Actual flow rate type)
0000000.00 (m3) 7 integers and 2 decimal places(Conversion flow rate type) 0000000.0 (m3)

7 integers and 1 decimal place

Every time you press the left button, the trip accumulated flow volume and total
accumulated flow volume are displayed in turn in the main display.
left button

Total accumulated

left button

24

Trip accumulated

By pressing the left button and right button simultaneously while the trip accumulated flow
volume is displayed, the trip accumulated flow volume is cleared.
If the trip accumulated flow volume exceeds 9999999.99, 0000000.00 is displayed without
zero suppress, and the accumulation operation continues.

(Trip accumulated flow volume 10000152.68 [Normal•m3])

4-1-3.Display of instantaneous flow-rate, temperature, pressure
The number of the display digits of each item is shown below.
[Instantaneous Flow-rate](Less than 1000) 000.00
3 integers and 2 decimal places(1000 or more)
0000.04 integers and 1 decimal place[Temperature]
00.0
2 integers and 1 decimal place[Pressure](Type without pressure sensor) 000.00
3 integers and 2 decimal place (The operating gas
pressure setting value is displayed.)(Type with pressure sensor)
0000.04 integers and 1 decimal place (The measured
pressure value is displayed.)*

The content of the pressure display is different between the type without pressure
sensor and type with pressure sensor.
Type without pressure sensor: Operating gas pressure setting value (The partitionline is turned off.)
Type with pressure sensor: Measurement value (The partition line is turned on.)Every time the right button is pressed, the sub display will cycle from Pressure to
Temperature and then to instantaneous flow-rate.
One minute after pressure or temperature is displayed, the display will automatically transit
to the instantaneous flow-rate display.

Operating gas pressure
Instantaneous flow rate

Right button

Right button

Temperature

Measured pressure
Elapse of 1 min

Right button, 1 min elapses25

4-2.Measurement of very small flow-rate (Test mode time selection)
The test mode is a function to temporarily cancel the low flow cutoff.
Please use the test mode under conditions where there is no flow.
You can transit to the test mode by pressing the right button for 3 seconds in themeasurement mode, and this will allow you to measure very small flow-rates.
In the test mode, the units in the sub display (”m3/h”, ”kPa”, “°C”) flicker every 0.5 sec.
You can select 3 min, 60 min, or unlimited as the test mode time, and when the specified
time elapses, the mode will automatically transit to the measurement mode. The mode
will transit to the measurement mode if the right button is pressed for 3 seconds or longer
again in the test mode.
If the flow-rate value in the instantaneous flow-rate display is (+) 0.01 or larger, or the pilot
lamp is flickering, there is a possibility of a leakage at the downstream of the meter.
If “- (minus)” is displayed in the instantaneous flow-rate display, there is a possibility of aleakage* at the upstream of the meter.
*

Possibility of leakage: Please note that this is strictly a possibility as the displayed
value also includes zero flow-rate offset, internal convection and other factors.
The instantaneous flow-rate display in test mode is rounded off to the second
decimal point.
Examples) Measurement value: 0 to 0.004 [m3/h] -> Display: 0.00 [m3/h]
Measurement value: -0.004 to 0 [m3/h] -> Display: -0.00 [m3/h]

4-3.Setting of parameters (Settings mode)
Press the center button, and you will transit to the settings mode. If you press the centerbutton again, you will transit from the settings mode to measurement mode. If no operationis performed in the settings mode for 3 minutes, the mode will automatically transit to themeasurement mode.
In the settings mode, you can change the settings explained in Table 4 Setting items andsettings in Settings mode (page 35).
For button operation in the settings mode, see Display Switchover Diagram in the settingsmode Fig. 7 to 9 (page 46 to 48).
*

The same settings can be made via RS485 communication. Make settings via
RS485 communication under conditions where button operations may be difficult,such as when the flow meter is used at heights.
Refer to communication specifications "TS-UX-002-TG" for details on thecommunication features.
You can download the communication specifications from our web site.

26

5.Alarm Display
In the alarm display, “▲” corresponding to the applicable alarm is turned on.

5-1.Abnormal ultrasonic measurement
When the ultrasonic signal is small and cannot be received, “Abnormal ultrasonicmeasurement” is turned on, and “0.00” is displayed as the instantaneous flow-rate value.
The accumulation stopped as the accumulated flow volume value just before the error
occurred remains displayed, and 1 mA is output as analog output.
Check that there is no foreign material which prevents transmission of ultrasonic and/or oil
and other fluid are not affixed in the pipe. When “Abnormal ultrasonic measurement” isturned on even if no foreign material is affixed and/or stationed, please contact yournearest branch or sales office.

(Note) Actions when the meter is first run
At the time of installation and start of operation of the flow meter, there are cases where“Abnormal ultrasonic measurement” is turned on due to excessive flow and/or mixture of air
and gas upon conversion of air into gas. After conversion is completed and the fluid is
stabilized, “Abnormal ultrasonic measurement” will be turned off. (This is not an error.)27

5-2. Battery replacement alarm [Internal Battery Type]
When 5 years pass after the battery connector is connected (the power is turned on),including storing period, “battery replacement alarm” is turned on to inform the user that it istime to replace the battery. While measurement continues even after “battery replacement
alarm” is turned on, it is recommended to replace the battery as soon as possible when“battery replacement alarm” is turned on.
When you replace the battery, contact your nearest branch or sales office.

When the remaining battery becomes low after “battery replacement alarm” is turned on,
the accumulated volume flickers every 0.5 sec as showing the battery is approaching to theend of life. The measurement operation is stopped, “0.00” is displayed as the instantaneous
flow-rate display, and the accumulation is stopped as the accumulated flow volume value
just before the alarm is turned on.
Replace the battery immediately.
When you replace the battery, contact your nearest branch or sales office.
The battery life is 5 years or more under the normal condition, but the end of the battery
may be displayed within 5 years according to the environment temperature.

In this state, you can switch the total accumulated flow volume display and trip
accumulated flow volume display using the left button, and the instantaneous flow-rate,
temperature, and pressure display using the right button, but you cannot switch the modeto the settings mode using the center button.

28

5-3.Abnormal temperature value
When an error of the temperature value is detected, “Abnormal temperature value” isturned on. When an error of the temperature value is detected, “0.00” is displayed as theinstantaneous flow-rate, an abnormal value is displayed as the temperature, and 1 mA is
output as the analog output. As for the accumulated flow volume value in the main display,
the accumulation process stops and the display shows the value immediately prior to theabnormality.

5-4.Abnormal pressure value (Type with pressure sensor)
When an error of the pressure value is detected, “Abnormal pressure value” is turned on.
When an error of the pressure value is detected, “0.00” is displayed as the instantaneous
flow-rate, an abnormal value is displayed as the pressure value, and 1 mA is output as theanalog output. As for the accumulated flow volume value in the main display, theaccumulation process stops and the display shows the value immediately prior to theabnormality.

5-5.Abnormal compensation (Type without pressure sensor)
When an error is detected inside flow-rate compensation, “Abnormal compensation” isturned on. When an error is detected, “0.00” is displayed as the instantaneous flow-rate,and 1 mA is output as the analog output. As for the accumulated flow volume value in themain display, the accumulation process stops and the display shows the value immediately
prior to the aberration.

29

5-6.External memory abnormality
When abnormality data is detected upon recovery of the accumulated value when the
power is turned on by setting of communication or button operation, and external power
supply type (24 VDC, 100 VAC), “External memory aberration” is turned on. When
“External memory abnormality” is turned on, check and reset the setting value. If “External
memory abnormality” is not turned off even after all the data is reset, there is a possibility ofa failure. Please contact the company you purchased the product from or our branch orsales office.

When an error of internal data is detected, the accumulated flow volume flickers every 0.5
sec.
There is a possibility of a failure. Please contact the company you purchased the productfrom or our branch or sales office

5-7.In the case of power outage (DC type, AC type)Power outage detection
When the power supply voltage is dropped to 18±1.1 V or lower, the meter
determines a power outage, stops the measurement, and turns off the LCD.



Recovering from a power outage
When the power supply voltage recovers to 18.8±1.1 V or greater, the meter
resumes the measurement and turns on the LCD.
The accumulated flow volume and trip accumulated flow volume are saved
every 5 minutes after the power is turned on. When the flow meter recovers
from a power outage, the accumulated flow volumes saved just before apower outage occurs are restored, and accumulation is performed using
these values.
When the flow meter recovers from a power outage, the accumulated flow
volumes are displayed in the upper LCD.

30

6.Troubleshooting
TimingPhenomenon

Abnormal ultrasonicmeasurement” isturned on. (See page 20
Immediately and 27.)
after
installation
The flow meter does notstart accumulation
immediately after
installation.
The instantaneous flowrate shows a negativevalue.
Battery replacement alarm

Duringoperation

Possible cause
Gas replacement operation isunderway.
The meter is used outside therange of the specifications (suchas installation conditions, gas
type, pressure, and temperature).
There is a major source ofelectrical noise near the flow
meter.
Gas replacement operation isunderway.

Remedial action
When the replacement operation is finished, ultrasonicmeasurement abnormal is turned off.
Check that the safety concerns and specifications[page 32] are complied with.
Take a measure to eliminate the noise source orshield the flow meter.
Use a shield wire as a cable which is connected to theterminal mount and ground the shield.
Check to see if the partition line between the main andsub-displays is flickering.
When the replacement operation is finished,accumulation starts.

The direction of the fluid flow andCheck to see that the arrow on the surface of the flow
the flow direction of the meter are
meter is pointing in the direction of the fluid flow.
opposite of each other.
It indicates the necessity to replace the internal
The internal battery needs to bebattery.
“” is turned on (Seereplaced.
(Contact your nearest Aichi Tokei Denki branch or
page 28).
sales office.)
It indicates that the internal battery reaches its life
The battery reaches its life
expectancy.
expectancy.
(Contact your nearest Aichi Tokei Denki branch orsales office.)
The accumulated flow
volume flickers.
It indicates the possibility of an internal memory
Internal memory aberration
failure.
occurs.
(Contact your nearest Aichi Tokei Denki branch orsales office.)
The flow meter operates correctly.
The pressure fluctuates
Installation of the meter in a place where there is little
frequently.
change in pressure is recommended to makeaccurate measurements.
The flow meter operates correctly.
The instantaneous flowInstallation of the meter in a place where there is little
rate appears to be
There is pulsation.
pulsation is recommended to make accurate
fluctuating.
measurements.
The meter is used outside therange of the specifications (such Check that the safety concerns and specifications
as installation conditions, gas[page 32] are complied with.
type, pressure, and temperature).
Gas is convecting in the pipe.
The flow meter operates correctly.
When the units in the sub display flicker, the test
Test mode is on.
mode is on. Turn it off according to need. (See Test
The instantaneous flowmode [page 26].)
rate does not fall to zero
The meter is used outside theeven there is no flow.
range of the specifications (such Check that the safety concerns and specifications
as installation conditions, gas[page 32] are complied with.
type, pressure, and temperature).
Check to see that the correct value unit for the
The instantaneous flow“Conversion flow rate (Normal or application is used.
rate is too large.
Standard)” display is set.
(For how to change the unit, see Setting of flow meter[page 40].)
There is excessive flow rate
Use the meter within the scope of its specifications.
The instantaneous flow
larger than the specifications.
(For the specifications, see [page 32].)
rate does not seem to
Adjustment of ultrasonic
The flow meter operates correctly.
change.
measurement is underway.
This should typically complete in about 30 seconds.
Check to see that the correct value unit for the
The instantaneous flow
The display shows the “Actual
application is used.
rate is too small.
flow-rate (m3)”.
(For how to change the unit, see Setting of flow meter[page 40].)
The flow meter operates correctly.
There is no "0" displayed in
The display shows the trip
(For how to restore the forward accumulated flow
the upper digit of theaccumulated flow volume.
volume, see the operation of the display section [pageaccumulated flow volume.
22].)

31

7.Specifications
7-1.List
UX [Nominal diameter] / [Pressure] [Power supply] / [Flow direction] / [Gas type]
UZ [Nominal diameter] / [Pressure] [Power supply] / [Flow direction] / [Gas type]
Model
Connection of pipe
Maxmum operating pressure
Gas type for measurementPowersupply/Powerconsumption
Flow-rate
range (actual
flow-rate)*1)

Battery
AC power supply
DC power supply

100 kPa

UZ40

JIS 10K

UX50
Screw
connection
Rc2

JIS 10K

500 kPa

100 kPa

500 kPa

Flange3 to 150 m3/h

1.6 to 80 m3/h

3 to 80 m3/h
13A、PRO、BTN、N2、AR

Minimum①±0.5%FS
flow rate
Qmin ~
Transitional ②±1.0%FS
flow rate Qt
Transitional
flow rate Qt ③±4.0%RD~ Maximum*5)
flow rate
Qmax

13A、N2、AR

3

PRO、BTN3+1.6～+8.0 m /h

+3.0～+15.0 m /h
+3.0～+15.0 m3/h

+8.0～+80 m3/h①±0.5％FS②±1％FS+15.0～+150 m3/h

+15.0～+80 m3/h③±4％RD

Transitional flow-rate Qt
Minimum flow-rate Qmin

Conversion accuracy

FlangeDedicated lithium battery (5-year life expectancy under 20°C and 65%RH)
100 VAC ± 15% / 10 W or less (when analog output is 22 mA)
24 VDC ± 10% / 2 W or less (when voltage is 26.4 V and analog output is
22 mA)

Butane, Propane

Compensation of temperature/pressure

UZ50

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

City gas, nitrogen,argon
Gas type

Accuracy

UX40
Screw
connection
Rc1•1/2

Maximum flow-rate

Disabled/Enabled (Normal/Standard conversion)±1.5% RD(At 23°C and±1.5% RD(At 23°C and±1.5% RD(At 23°C and±1.5% RD(At 23°C and

100 kPa)

500 kPa)

100 kPa)

500 kPa)

Accumulated flow
volume(Actual flow )Main display section: 8 integers and 2
decimal places(Conversion flow r): 8 integers and 1
decimal place
Trip accumulated(Actual flow rate): 7 integers and 2
flow ratedecimal places(Conversion flow rate) : 7 integers and 1
decimal place
Ultrasonic measurement abnormal, temperature measurement abnormal,pressure measurement abnormal, external memory abnormal, and battery
voltage abnormal (battery-powered meter only), etc.

Sub display section

Instantaneous flow rate display: 5 digits; Temperature display: 3 digits;
Pressure display: 5 digits

Display32

ModelAnalogOutputPulse

Communic
ation*2)
Fluid temperature
Operatingenvironment
temperature/humidity
Protection structure*3)
Mass
Others

UX40
UZ40
UX50
UZ50
(Power-driven meter only) 4 to 20 mADC (Load resistance 400 Ω or
smaller)
Select from Instantaneous flow rate, Temperature, and Pressure.
Standard: Instantaneous flow rate
Nch open drain output (Max. load 24 VDC, 50 mA)
Output 1 (accumulated pulse): Standard: 1000L/P(Select from 10, 100, 1000, and 10000L/P.) Duty 20 to 80%
Output 2 (alarm): (Power-driven) Select upper and lower limit alarm or
upper limit alarm of accumulated flow volume.
(Battery-driven) Select battery voltage decrease alarm or
upper and lower limit alarm.
(Power-driven only) Complies with RS485 Modbus/RTU. (4800 bps/9600bps)-10 to +60°C-10 to +60°C, 90%RH*No condensation.

Outdoor
IP64 (JIS C 0920)
Approx. 4.7kg
Approx. 7.0kg
Approx. 6.3kg
Battery type,24VDC type : CE marking, UKCA marking,
RoHS Directive compliant
100VAC type
: RoHS Directive compliant

Approx. 8.8kg*1) See Table 2 and Table 3 (page 34) for the conversion flow-rate range.
*2) For detailed specifications, download them from our web site.
*3) If the flow meter is exposed to direct sunlight, providing a sunshade or using theoptional cover is recommended.
*4) The pressure value displayed on the LCD display is from 5 kPa.
On regarding output signal (Analog4-20mA, pulse, RS485), it outputs even 5 kPa or
less.
The output interval is updated at intervals of measurement every 10 seconds for Built-in
battery Model (Type B) and every 0.5 second for External power supply Model (TypeD,R).
*5) In case a distance from an elbow of minimum 10D in the upstream side and 5D in thedownstream side of the meter can be secured: ±2.0%RD

33

7-2.Glossary of terms used in specificationsActual flow rate
Cubic volume of the fluid which flows per unit of time. The actual flow rate changes
depending on the temperature and pressure of fluid. The unit of fluid is m3/h.
Normal conversion flow-rate
The volumetric flow rate obtained by converting the temperature and pressure withwhich the actual flow rate is measured into 0°C and 1 atmosphere (1 atm). The unit offluid is m3/h (Normal).
Standard conversion flow rate
The volumetric flow rate obtained by converting the temperature and pressure withwhich the actual flow rate is measured into the conversion standard temperature andconversion standard pressure. The unit of fluid is m3/h (Standard).
The conversion standard temperature (-10 to 60°C) and conversion standard pressure(0.00 to 10.00 kPa) can be changed by buttons and communication (external power
supply (24 VDC, 100 VAC) only).
Table 2 Normal conversion flow-rate values [m3/h (Normal)][Conversion example]
Pressure (kPa)
Temperature (°C)
1.6
Actual
40A
80
flow
rate
3
50A
(m3/h)150

0 (atmosphericpressure)
0
30
1.60
1.44
80.00
72.08
3.00
2.70
150.00 135.16

2
0
1.63
81.58
3.06
152.96

10
30
1.47
73.51
2.76
137.82

0
1.76
87.90
3.30
164.81

100
30
1.58
79.20
2.97
148.500
3.18
158.975.96
298.08500
30
2.86
143.245.37
268.5809.50
474.8717.81
890.3830
8.56
427.8716.05
802.26

Conversion standard temperature = 0°C, Conversion standard pressure = 0 kPa (gauge pressure)

Table 3 Standard conversion flow rate value [m3/h (Standard)] [Conversion example]
Pressure (kPa)
Temperature (°C)
1.6
Actual
40A
80
flow
rate
3
50A
(m3/h)150

0 (atmosphericpressure)
0
30
1.68
1.52
84.20
75.86
3.16
2.84
157.87 142.24

2
0
1.72
85.86
3.22
160.98

10
30
1.55
77.36
2.90
145.05

0
1.85
92.51
3.47
173.45

100
30
1.67
83.35
3.13
156.2903.35
167.316.27
313.7150030
3.02
150.755.65
282.660
10.00
499.7718.74
937.0730
9.01
450.31
16.89
844.33

Conversion standard temperature = 20°C, Conversion standard pressure = 2 kPa (gauge pressure)Pressure loss
Flow rate / Pressure loss characteristics

The pressure loss in the air is asshown in the figure on the left.
To calculate the pressure loss of each

Pressure loss [Pa]

gas type, multiply the specific gravity
40A

50A

Flow rate [m3/h]

34

shown below.
• City gas (13A): 0.64• Butane: 1.55• Propane: 2.0• Nitrogen: 0.97• Argon: 1.38

8.Setting of parameters
It is recommended to perform the settings of the flow meter prior to installation.
On this product, setting of the items shown in Table 4 can be made by button operation and
RS485 communication.
At the time of factory shipment, the standard factory delivery settings in Table 4 are set, andthe user can use the flow meter as it is. Change the settings according to the usage, if
needed.
For operation and setting of buttons, see 4.3 Setting of parameters in 4. Operation
Procedure.
For setting by RS485 communication, see communication specifications “TS-UX-002-TG."
You can download the communication specifications from our web site.

Panel
Display
F01
F02
F03
F04
F05

F06

F07
F08
F09
F10
F11
F12
F13
F14
F15

Table 4 Setting items and settings in Settings mode
Corresponding setting
Upon factory shipment
Scope of setting contents
item
Setting contents
Flow-rate conversion
selection
Conversion standard
temperature
Conversion standard
pressure
Output pulse constantOperating gas pressure
setting value

Alarm output selection

State of alarm output
contact
Alarm output lower limit
Alarm output upper limit
Alarm output
Hysteresis width
Analog output
Full scale flow-rate
Switchover of analog
outputCommunication bit rate
RTU address
Instantaneous flow-ratemoving average numberof times

OFF/ON

Type without pressure
sensor: OFF
Type with pressure
sensor: ON-10 to 60°C

0 °C

000.0 to 10.00 kPa

0.00 kPa

10, 100, 1000, 10000 L/P[UX] 0.00 to 100.00 kPa[UZ] 0.00 to 500.00 kPa[BT] Battery voltage decrease
alarm output
Flow rate upper and lower limit
alarm output[DC, AC] Accumulated value
upper limit alarm output
Flow rate upper and lower limit
alarm output
N.O (Normally open)
N.C (Normally closed)
0.0 to +9999.9 m3/h
0.0 to +9999.9 m3/h

1000 L/P

0.0 m3/h
9999.9 m3/h

0.0 to +9999.9 m3/h

0.0 m3/h

0.0 to +9999.9 m3/h

*See “F11” in 8-1.
Details of setting items.

10 kPaFlow rate upper andlower limit alarm output

N.O (Normally open)

Instantaneous flow-rate,
temperature, pressure
4800 bps, 9600 bps
001 to 247

9600 bps001

1 to 16 times

4 times

35

Instantaneous Flow-rate

PanelDisplay

Corresponding setting
item

Scope of setting contents

Upon factory shipment
Setting contents

F16

Test mode time
selection

3 min., 60 min., Unlimited

3 min.

F17

Gas type selection

13A, propane, butane, nitrogen,
argon

F18
F19
F20
F21

Low flow cutoff value*See “F18” in 8-1. Details of
setting items.

Atmospheric pressure of
0.0 to 200.0 kPa
the working environment
Selection of with orwithout pressure value
No (1 time), Yes (10 times)
moving averaging
With or without pressurezero-cut"With zero-cut (ON) , Without
zero-cut (OFF)*The gas type specified
by the customer uponorder is set.
40A: 0.3 m3/h
50A: 0.6 m3/h
101.3 kPa
Yes (10 times)
Type with pressure
sensor: With zero-cut(ON)

The setting items can be divided mainly into 3 categories.

1)

1)
2)

Items related to fluid
Items related to measurement and display

3)

Items related to output
Setting of items related to fluid[1] Setting related to gas type [F17]
Setting related to gas type
F17
Gas type

Selection from 13A, propane, butane,
nitrogen, and argon

Set the gas type to be used. Since the gas type specified upon order is set at thetime of factory shipment, there is no need to change this setting.
“Air” displayed in the selection window is designed for maintenance, and therefore
you cannot select it for normal use.
[2] Setting related to pressure [F5] (Available only for actual flow-rate type)
Setting related to pressure
F5
Operating gas
pressure

Input of the operating gas
pressure setting value

Set the pressure value of the environment in gauge pressure.
Example) When the pressure value of the environment is 2.00 kPa in gaugepressure: Setting value in [F5] “2.00”

36

2)

Setting of items related to measurement and display
Settings related to measurement and display
Selection of “actual flow rate” or “conversion
flow rate”

F1
Conversion function selection

Actual flow rate

Conversion flowrate

F2
Conversion standard
temperature
F3
Conversion standard
pressure[1] Setting of conversion function selection [F1] (Available only for conversion flowrate type)
Set “Actual flow-rate” or “Conversion flow-rate”. When “Conversion flow rate” isselected, the accumulation display, instantaneous display, and output signal
correspond to the converted flow volume based on the settings of [F2] and [F3].
When the setting of [F1] Flow-rate conversion selection is changed, the setting
value of [F4] Output pulse constant is automatically changed to 1000 [L/P]. Aftersetting [F1], set [F4] again according to need.
[2] Setting of conversion standard temperature [F2] and setting of conversion
standard pressure [F3]When you select “Conversion flow rate” in [F1], set the standard temperatureand pressure to be used for conversion. When 0°C is set to the conversion
standard temperature, and 0.0 kPa is set to the conversion standard pressure,the conversion flow-rate becomes normal conversion flow-rate. When any value
other than 0°C is set to the conversion standard temperature, and any value
other than 0.0 kPa is set to the conversion standard pressure, the conversion
flow-rate becomes standard conversion flow-rate.
When you select “Actual flow rate” in [F1], the settings of the standard
temperature and pressure to be used for conversion become invalid.

37

3)

Setting of items related to output

Settings related to output
Setting of output pulse unit

F4
Output pulse unit

Selection of warning output

F6
Selection of warning output

Battery replacement alarm(Only for internal battery type)

F7

Upper limit alarm of accumulated
flow volume(Only for external power supply
type)State of alarm output contact

Flow rate upper and lower
limit alarm

F8
Alarm output lower limit value
F9
Alarm output upper limit value
F10
Alarm output hysteresis width

Selection of current output(Only for external power supply type)

F12
Current output selection

Instantaneous flow rate

F11
Analog output FS flow rate

Temperature[3] Setting of output pulse constant [F4]When you use pulse output, set the output pulse constant according to theusage in advance.
[4] Setting of alarm output selection [F6]The selectable alarm output items vary according to the power supply type asshown below:
Internal battery type

: Flow rate upper/lower limit alarmor battery replacement alarm
External power supply type (24 VDC, 100 VAC) : Flow rate upper/lower limit
alarm or upper limit alarm ofaccumulated flow volume
Flow rate upper/lower limit alarm can be output and stopped at any flow-ratevalue. When you select this function, set the alarm output lower limit value [F8],alarm output upper limit value [F9], and alarm output hysteresis width [F10].

38

[5] Analog output selection [F12]As the analog output type, you can select instantaneous flow-rate, temperature,or pressure according to the usage.
When you select instantaneous flow-rate, current based on the maximum flowrate value setting of analog output is output.
When you select temperature, 4 mA is output at -10°C, and 20 mA is output at+60°C.
You can select pressure only for the conversion flow-rate type. The currents
shown below are output according to the model.
[UX]: 4 mA at 0 kPa, 20 mA at 100 kPa[UZ]: 4 mA at 0 kPa, 20 mA at 500 kPa
Setting of maximum flow-rate value of analog output (Analog output FS flowrate) [F11]
When you use analog output for instantaneous flow-rate, it is recommended to
set the full scale flow-rate (FS flow-rate) of analog output based on the
maximum flow-rate. It is recommended to set a numeric value with margin as
the setting value of the FS flow-rate.
For reference, a conversion example is shown in Table 2 and Table 3 (page 34).

39

8-1.Details of setting items
The items with *1 to *3 are displayed only for the corresponding models shown below andnot displayed for other models.
*1
*2
*3

Type with pressure sensor only
Type without pressure sensor only
DC type and AC type only[F1] About flow-rate conversion selection (*1)
As the flow-rate conversion, you can select the actual flow-rate, normal conversion
flow-rate, or standard conversion flow-rate.
You can select the actual flow-rate, normal conversion flow-rate, or standard
conversion flow-rate using the settings of [F1] Flow-rate conversion selection, [F2]Conversion standard temperature, and [F3] Conversion standard pressure. (SeeTable 5.)

Table 5 Display/output values based on [F1] to [F3] settings[F1] Flow-rate[F2] Conversion standard temperature,
conversion
Flow rate[F3] Conversion standard pressure
selection
No
Actual flow rate
Normal conversion flow0°C and 0.00 kPa
rate
Yes
Standard conversion
Other than “0°C and 0.00 kPa”
flow rate
If you select "Yes" for conversion, the "Normal" or "Standard" lamp above thepartition line will flash, and the accumulated flow volume display, instantaneous flowrate display, and output signal will all correspond to the converted flow volume.
If you select "No" for conversion, the "Normal" or "Standard" lamp above the partitionline will be turned OFF, and the accumulated flow volume display, instantaneous
flow-rate display, and output signal will all correspond to the actual flow-rate.
When flow-rate conversion selection is set (and even if the setting is not changed),the output pulse constant is automatically changed to 1000 [L/P], which is set at thetime of factory setting.
Example: When “No” is changed to “Yes”
Output pulse constant 10 L/P, No conversion↓ “Yes” is selected.
Output pulse constant 1000 L/P, Normal flow-rate or Standard flow-rate
Conversion is internally calculated as shown below.
Qn = (T + t0) / (T + t1) × (P + p1) / (P + p0) × Qr
Qr : Actual flow-rate [m3/h]
Qn : Conversion flow-rate [Normal (Standard)•m3/h]
T : 273.15 [K] (Absolute temperature of 0°C)
t1 : measured temperature [°C]t0 : Conversion standard temperature [°C] (Set in Settings mode [F2])P : 101.33 [kPa abs] (Absolute pressure of 1 atm)
p0 : Conversion standard pressure (Set in Settings mode [F3])p1 : measured pressure value (gauge pressure) [kPa]40

When you use both the external output function and conversion flow-rate, it isrecommended to set the output constant in reference to the conversion example
Table 2 and Table 3 (page 34).
[F2] Conversion standard temperature (*1)
When you select “Conversion flow rate” in [F1] Conversion function selection, set thetemperature to be used as the standard for conversion.
The value can be set within the range of -10℃ to 60℃ in 1℃ steps.
When you select “Actual flow rate”, the setting of the conversion standard
temperature becomes invalid.

[F3] Conversion standard pressure (*1)
When you select “Conversion flow rate” in [F1] Conversion function selection, set thepressure to be used as the standard for conversion.
When you select “Actual flow rate”, the setting of the conversion standard pressure
becomes invalid.

[F4] About output pulse constantSelect the output pulse constant from “10000”, “1000”, “100”, and “10”.
(Unit is [L/P].)
This setting may not be available depending on the combination of the model andflow-rate conversion selection.
An option indicating that the item cannot be selected is not displayed. (See Table 6.)
Table 6 Output pulse constantNominal Pressure
diameter sensor

Conversion

100

1000

10000









OFF









ON











































































0
40
UX

100
0

50

100

OFF
ON

0
40
UZ

500

OFF
ON

0
50



500

Output pulse constant [L/P]
10

OFF
ON

Selectable

Not selectable

When the setting of [F1] Conversion function selection is changed, the setting valueof [F4] Output pulse constant is automatically changed to 1000 [L/P]. After setting[F1], set [F4] again according to need.

41[F5] About operating gas pressure setting value (*2)
Set the pressure value of the environment in gauge pressure.
Set the value in the range of [UX] 0 to 100.00 [kPa] and [UZ] 0 to 500.00 [kPa] inincrements of 0.01 [kPa].

[F6] About alarm output selection
The selectable alarm output items vary according to the power supply type as shown
below:
Internal battery type
: Flow rate upper/lower limit alarm orbattery replacement alarm
External power supply type (24 VDC, 100 : Flow rate upper/lower limit alarm or
VAC)
upper limit alarm of accumulated flow
volume<Flow rate upper and lower limit alarm output>
In alarm output, an alarm signal is output when the instantaneous flow-rate exceeds
the alarm output upper limit value or it becomes lower than the alarm output lower
limit value. An alarm signal is stopped when the instantaneous flow-rate exceeds the(alarm output lower limit value + alarm output hysteresis width) or it becomes lower
than the (alarm output upper limit value - alarm output hysteresis width) while an
alarm is output.
Make the setting in a way that the (alarm output upper limit value) > (alarm output
lower limit value + alarm output hysteresis width).
<Battery replacement alarm>
When 5 years pass after the battery connector is connected (the power is turnedon), an alarm signal is output as the time to replace the battery.
<Upper limit alarm of accumulated flow volume>
When the accumulated flow volume for 1 hour after the power is turned on becomes
higher than the specified accumulated flow volume, an alarm signal is output, andthat state is kept for 1 hour.
When a message to reset the accumulated value upper limit alarm is received
through communication, the alarm output is stopped, but observation of theaccumulated value per hour continues.
With alarm

No alarm
Power isturned on

No alarm

No alarm
With alarm
Reset command
While alarm is stopped,
observation of the accumulated
value for 1 hour will continue.

The upper value of the accumulated flow volume is set via communication.
*For detailed communication specifications, download them from our web site.

42[F7] About state of alarm output contact
As the state of the alarm output contact, select either "Normally open (n. OP)" or"Normally closed (n. CL)."
Set this to "Normally open" in case of using a battery-powered signal receiving
device.

[F8] About alarm output lower limit
Set the flow-rate value at the lower limit side of the upper/lower limit flow-rate alarm
output. When it is used by “conversion flow-rate”, set the conversion value.

[F9] About alarm output upper limit
Set the flow-rate value at the upper limit side of the upper/lower limit flow-rate alarm
output. When it is used by “conversion flow-rate”, set the conversion value.

[F10] About hysteresis width for alarm outout
With regard to the flow-rate value defined for the upper and lower limits of theupper/lower limit flow-rate alarm output, set the flow-rate range to stop the alarm
output. When it is used by “conversion flow-rate”, set the conversion value.
For instance, when the upper limit of the flow-rate is set to 7.00 [m3/h], the lower limitof the flow-rate is set to 2.00 [m3/h], and alarm output hysteresis width is set to 1.00
[m3/h], an alarm is output when the flow rate exceeds 7.00 [m3/h], and the alarmstops when the flow rate becomes lower than 6.00 [m3/h] at the upper limit side.
Likewise, at the lower limit side, an alarm is output when the flow rate becomes
lower than 2.00 [m3/h], and the alarm stops when the flow rate becomes larger than
3.00 [m3/h].

[F11] About full scale flow-rate for analog output (*3)
Set the full scale flow-rate value when the instantaneous flow-rate is set for analog
output. When you use analog output for the conversion flow rate, set the converted
full scale flow-rate.
The flow rate values shown below are set at the time of factory shipment.
[Nominal
Full scale flow-rate value[Pressure]diameter][m3/h]
UX
40A
0
80
100
300
50A
0
150
100
600
UZ
40A
0
80
500
700
50A
0
150
500
1300

43



[F12] About analog output selection (*3)
Select the output signal of analog output from "Instantaneous flow-rate (FLo)","Temperature (tEP)", and "Pressure (PrS)".
Note that “Pressure” can be selected only for the conversion flow-rate type.
(“Pressure” is not displayed for the actual flow-rate type.)[F13] About communication bit rate (*3)
Select either 4800 bps (4800)" or "9600 bps (9600)” for your communication bit rate.

[F14] About RTU address (*3)
Select a value between 001 to 247 for the RTU address.

[F15] About moving average number of times
Select the moving average number of times for display and output of theinstantaneous flow-rate. The moving average number of times is set to 4 times upon
factory shipment, and the immediate 4 measurement values are adopted.
While there is no need to change the moving average number of times under normal
usage, you can select 1 to 16 times. When you select 1 time, “no moving average” isset.



[F16] About test mode time selection
You can select the test mode time. At the time of factory shipment, “3 min. (3)” is set.
You can select “60 min. (60)” and “Unlimited (--)” in addition to 3 min.

[F17] Gas type selection
Select the gas type to be measured from “13 A (13A)” “Propane (Pro)”, “Butane(but)”, “Nitrogen (n2)”, and “Argon (Ar)”.
“Air” displayed in the selection window is designed for maintenance, and therefore
you cannot select it for normal use.
Since the gas type specified upon order is set at the time of factory shipment, there
is no need to change this setting under normal use.

[F18] Low flow cutoff value
Set the low flow cutoff value where the instantaneous flow-rate is 0 m3/h.
The settable range is defined as 0 ≤ Low flow cutoff value < Q (See Table 7).
When you use this value for the conversion flow-rate, set the conversion value.
Table 7 Upper limit of low flow cutoff value
Flow-rate Q
Model[m3/h]UX40 6.00
UX50

20.00

UZ40

20.00

UZ50

30.00

44



[F19] Atmospheric pressure of the working environment
Set the atmospheric pressure of the working environment in absolute pressure [kPa].
At the time of factory shipment, 101.3 [kPa] is set.
There is no need to change this setting under normal use. However, if the setting
value at the time of factory shipment is used at a high altitude place, error in
accuracy occurs when calculating the conversion flow-rate.
The relationship between the altitude, atmospheric pressure, and maximum error in
accuracy is shown in Table 8. (Reference value)
Table 8 Atmospheric pressure of the working environment
Max. error in accuracy (%)
Atmospheric pressure
Atmospheric pressure of the working
Altitude(absolute pressure)environment: 101.3 kPa(m)Measured pressure value: 0 kPa(kPa)(gauge pressure)



0

101.3

±0.0

200

98.95

+2.4

400

96.61

+4.9

1000

89.87

+12.7

[F20] Selection of with or without pressure value moving averaging (*1)
Select either "With averaging (10)" or "No averaging (1)" for pressure values.
If "With averaging" is selected, the moving average value of the 10 most recently
measured pressures is used for display and output.

[F21] With or without pressure zero-cut (*1)
Select "With zero-cut (on)" or "Without zero-cut (oFF)" for zero-cut of pressure value.
If "With zero-cut (on)" is selected, in the case that the measured pressure value is
5[kPa] or less, the pressure value is indicated and outputted as 0[kPa]. In the casethe setting of "pressure value averaging" is "With averaging", zero-cut judgment is tobe done based on the pressure value of moving average after such averaging.

45

A diagram showing the display changeover in each setting mode is given below.
Center button Measurement
ormode
No operation for 3
min.

Center button
Yes

Left button + rightbuttonLeft button

Left button

No

Flow rate
conversion selection

Right button

Left button + rightbuttonRight button

Left button*The flickering value is incremented by
1 every time the right button is pressed.

Left button
Left button

FlickerFlicker

Left button

Flicker

Left button + rightbuttonConversion
standard
temperature

Right button

Left button + right
Right button
buttonFlicker

Right button
Left button

Left button

Left button + rightbuttonFlicker Left button Flicker Left button

Flicker Left button*The flickering value is incremented
by 1 every time the right button ispressed.

FlickerConversion
standard pressure
Left button + rightbuttonRight button

Left button

Left button

Left button + rightbuttonLeft button

Left button

Left button

Output pulse unit
Left button + rightbuttonRight button

Left button

Left button
Left button + rightbuttonFlicker Left button

Flicker Left button Flicker Left button

Left button

Operating gas
pressure setting
value
Left button + rightbuttonLeft button

Left button

Right button

Flow rate upper / lower limit alarm
Left button

Battery replacement
alarm

Flow rate upper / lower limit alarm
Left button

Alarm output
selection
Left button + rightbuttonLeft button

Left button

Left button

Right button

Left button + rightbuttonNormally open

Left button

Normally closed

State of alarm
output contact
Left button + rightbuttonRight button

Flicker

External power supply typeInternal battery typeLeft button + rightbuttonFlicker*The flickeringvalue isincremented by
1 every time theright button ispressed.

Left button

Left button

Fig. 7 Display changeover in each setting mode

46

Accumulated value upper
limit alarm

F7State of alarm
output contact

Right button

F8

Left button

Alarm output
lower limit flow
rate

Left button + rightbuttonFlicker Left button

Flicker Left button

Flicker Left button

Flicker Left button

Left button + rightbuttonLeft button

Right button

Alarm output
upper limit flowrate

Right button

Left button + rightbuttonFlicker
Left button

Left button

Left button + rightbutton*The flickeringvalue isincremented by 1
every time theright button ispressed.
Flicker

Left button

Flicker
Left button

Flicker
Left button

Flicker
Left button*The flickeringvalue isincremented by 1
every time theright button ispressed.

Left button + rightbuttonFlicker

Left button

Left button

Left button + rightbuttonF11

Flicker
Left button

Left button

Alarm judgment
value
Hysteresis width

Right button

Flicker
Left button

Left button

Left button + rightbuttonFlicker

F10

Flicker

Left button
Flicker

F9*The flickeringvalue isincremented by 1
every time theright button ispressed.

Flicker

Left button

Flicker

Left button

FlickerFlicker
Left button

Left button

Current output fullscale flow rate
Left button + rightbuttonRight button

Left button + rightbuttonF12Instantaneous
flow rate Left button Temperature

Right button

Left button

Left button
Left button + rightbutton9600 bps Left button 4800 bps

Communication
bit rate
Left button + rightbuttonRight button

Left button

Left button
Left button + rightbutton

F14

Left button Pressure

Current output
selection
Left button + rightbuttonF13

Flicker

Left button

Left button

Flicker
Left button

Flicker

Right button

Flicker*The flickering value is incremented by 1
every time the right button is pressed.

RTU address
Left button + rightbuttonLeft button

Left button

Left button

Fig. 8 Display changeover in each setting mode

47

*The flickeringvalue isincremented by 1
every time theright button ispressed.

RTU address

Right button

Left button
Left button + rightbutton

4 times

5 times

Left button

Left button

Left button

2 times

Left button

3 timesMoving average
number of times
Left button + rightbuttonRight button

Left button

Left button
Left button + rightbutton3 min. Left button 60 min.

Left button

Unlimited

Test mode time
selection
Left button + rightbuttonLeft button

Left button

Right button

Left button + rightbuttonLeft button Propane Left button Butane Left button Nitrogen Left button

Air

Left button Argon

Gas type
selection

Right button

Left button + rightbuttonLeft button

Left button*Do not select Air, which is prepared only for maintenance.

Left button + rightbuttonFlicker
Left button

Flicker
Left button

Left button* The flickering value isincremented by 1 every time theright button is pressed.

Low flow cutoff
value
Left button +right button
Right button

Flicker

Left button

Atmospheric pressureof the working
environment

Left button + rightbuttonFlicker
Left button

Left button + rightbuttonRight button

Left button

Flicker

Left button
Flicker
Left button

Left button

Flicker
Left button

FlickerWith averaging (10Without averaging (10times)
times)Left button

Left button + rightbuttonSelection of with orwithout pressure value
moving averaging

Left button + rightbuttonWith or withoutpressure zerocut

Left button

Left button + rightWithout pressure zerobuttonWith pressure zero-cut
cut
Left button
Left button + rightbuttonLeft button

Fig. 9 Display changeover in each setting mode48

Warranty and after-sale service1) Warranty period
For the period of one year after purchase, in case of a failure that is explicitly attributable toour manufacturing process, we will exchange the product for free.

2) Scope of warranty
The followings are not included in the scope of warranty.
Failure caused by force majeure, such as natural disaster, etc.
Disassembly or alteration of the product.
Failure caused by mishandling.
Failure caused by use in excess of the scope of the specifications (environment, etc.)
Other cases determined to be not attributable to our responsibility
Warranty specified here applies to our product itself, and any damage (loss and/or damageof any products other than our product, lost earning, and lost opportunity, etc.) incurred by
the customer due to a failure of our product is excluded from the scope of warranty.

3) Requesting for service
Regardless of whether or not your warrantee has expired, please contact the company you
purchased the product from or our branch or sales office branch or sales office with the
product name, model, construction work number, serial number, and a detailed descriptionof the failure.

4) Points to note for long-term use
Warning [Designed standard operating period] 10 years
The designed standard operating period refers to the standard period in which the productcan be used after installation without safety problems against time-related degradation

under the standard conditions (environment temperature 20°C, environment humidity
65%RH).
If you use the product longer than the designed standard operating period, safety problemsof the product itself may occur such as deterioration of water-proof/dust-proof performance,
smoke, fire, and electrical shock, etc.
If the designed standard operating period has passed, please use the product as checking
if there is any failure in the product and consider replacing it with a new one.
The designed standard operating period is different from the warranty period. It does notguarantee that a general failure will not occur.

49

Ver. 122023.07