7178-505

The following startup display is shown upon power-on.

4 Switch I/O Circuit<NPN transistor output ><製品側>side><ProductHandling Manual
Capacitive Electromagnetic Flowsensor
CX series<PNP transistor output ><ユーザ側>
<User
side>

Q

R

4K (Black)
4(黒）R

3K (Blue)
3(青）

＊

HY1
ON

OFF

OFF
P1

P1

Momentary flow rate

[Normal open](2) Window mode
HY1

HY1

OFF
Lo1

Display

Hi1

Lo1

Momentary flow rate

[Normal open]

ON

INC

Time
ON
OFF

Time
ON

Window mode

You can select frequently used settings by a shortcut operation from thenormal display.

Display

Momentary value display<The main screen selection>□(Current screen blinks)
Normal display□<OUT1: Level judgment mode>△ or ▽□ON[Normal open]□ + ▽Blinking
E007 (Excessive flow rate error)

Trip accumulated
output mode

Accumulated pulse
output mode

Alarm output mode(2) When OUT2 is selected by F4
One of the following is displayed according to the setting of the Function
mode F2: OUT2.
Digital input:
Digital input:
Accumulated output reset
Remote zero adjustment
Analog output[Normal close]

Normal50msec<OUT2: Analog output FS mode>△ or ▽<Flow direction>□(4) When arbitrary text is selectedby F4[Normal open][Normal open]

Normal50msecON

Normal display

10msec when the pulse rate is 0.01L/Pulse<Normal display: Total Accumulated value display>
The main screen shows the Accumulated value and sub screen shows theunit for the Accumulated value.
You can use the △ and ▽ buttons to change the unit in the sequence of"L" → "kL" → "ML."Tightening
torque10A

22 - 24Nm

15A

28 - 30Nm

20A

34 - 36Nm

5.4
5

21.6
20

Adjustable

1

4

Current output [mA]

Caliber

Voltage output [V]<OUT2 output ><Alarm display>
When an error is detected, the main screen shows an error code to
indicate the error. The error code remains until the error has been resolved.
Error correction

Normal display

Momentary flow rate [L/min]
15 [L/min] (voltage/current output)

3 Wiring

Pin No.
1

Terminal name
+V

2

OUT2

3
4

0V
OUT1

Description
24VDC power
Analog output/switch
input
Power GND
Switch output

6 Mode Selection
You can select the mode by shortcut mode operation in the measurement
mode. You can move from the measurement mode to the Function mode I
or Function mode II as shown below.
Press and hold □ for 2 sec.

Measurement

Body-side connector pin assignment

mode 7
Shortcut mode 8

Error code

Error

Description

E002

Memory error

An error occurred with theinternal data.

E003

Excitation
abnormality

An error occurred with theinternal circuit.

E004

Excessive current

An excessive current has
flowed in the switch
output .

E005

Measurementtarget fluid error

The flow rate cannot bemeasured correctly due toanabnormalcurrent
flowing in the target fluidor air is mixed with it.

Power off the product andcheck the target fluid forabnormality.

E006

Reverse flow

The fluid flows in the
direction opposite to theset direction.

Check the flow direction
setting.

E007

Excessive flowrate

The flow rate exceeds
120% of the maximum
flow rate.

Check the flow rate anddecrease it as necessary.

Function mode I 9Countermeasure
Power off the product andthen power it on again.

Power off the product andcheck the load.

Function mode II 10
Press and hold □ for 2 sec or leave it for 20 seconds.

Pin No.
1
2
3
4

Lead color
Brown
White
Blue
Black

Terminal name
+V
OUT2
0V
OUT1

Cable-side connector pin assignment

Description
24VDC power
Analog output/switch input
Power GND
Switch output

7 Normal Operation (Measurement Mode)<Overview>
The measurement mode is the normal operation mode enabled after thestartup display upon power-on to output and display measured values.
By switching from the measurement mode to the shortcut mode or Function
mode to change settings as necessary.
<Startup display>(Press and hold for
2 sec or longer)
1 sec after
setting.

Press △ or ▽to set and press □ toconfirm.

* While key lock is enabled, any other operations than key lock operation
are disabled. Disable the key lock in the same method. When you press a
key while key lock is enabled, "LOCK" is shown on the sub screen for 2
seconds.

9 Basic Settings (Function Mode I)<Overview>(1) List of items for Function mode I
The Function mode I provides the following setting items.
Display
F1
F2
F3
F4
F5
F6

Item
OUT1
OUT2
Responsetime
Sub screen
Flow direction
Total
Accumulated
display unit

Description
Specifies the output method for OUT1.
Selects from analog output and switch input.
Sets the response time
Sets the contents of the sub screen.
Sets the flow direction of the target fluid.
Selects the unit for total Accumulated value display.

(2) How to switch to Function mode I

Press and hold □ for 2 sec or leave it for 20 seconds.
Press and hold □ for 4 sec.

Press □ to reset.
Press △ or ▽to cancel.

△ + ▽(5) When no sub screen display is selected by F4[Normal close][Normal close]*Perform F40<zero adjustment>each time after changing
the flow direction.

<Key lock enable/disable>

Error

ON
OFF

OFF

Press △ or ▽
to
set
the
flow
direction, and press□ to confirm.

<Total Accumulated value reset>□ + ▽(3) When flow direction is selectedby F4

Press △ or ▽to set F.S. and press□ to confirm.

□

Error

ON
OFF

Press □ to reset
the Accumulated value.

□(5) Alarm output modeON

Press △ or ▽ to
set the reference
value and press□ to confirm.

<OUT1: Trip accumulated output mode>

DEC

Time

Press △ or ▽toselect"momentary value
display" or "total
Accumulated value
display" and press□ to confirm.

On△ or ▽

OFF

OFF

When attaching a pipe or joint to the product, be sure to hold the baseon the installation side with a tool. Holding the base on the other side or
body may damage the product.

Level judgment
mode

DEC

[Normal close](4) Accumulated pulse output

2 Piping

Momentary flow rate

OFF

[Normal open]

Parallel mode display

NPN-V
NPN-A
PNP-V
PNP-A

8 Easy Setup (Shortcut Mode)

Decrement mode
Accumulated flow rate

Time

Accumulated flow rate

Accumulated flow rate

INC

Hi1

[Normal close](3) Trip accumulated output mode
Increment modeOFF

Sub screen

Outputspecifications
NPN，1-5V
NPN，4-20mA
PNP，1-5V
PNP，4-20mA

When the main screen shows the momentary value, the sub screen showssuch codes as "OUT1" or "OUT2" in accordance with the setting of the
Function mode (F4: Sub screen).
(1) When OUT1 is selected by F4
One of the following is displayed according to the setting of the Function
mode F1: OUT1.

HY1

ON

OFF

Base

Momentary flow rate

[Normal close]ON

connector

Display
15
60
60

When the main
screen is set tototal
Accumulated
value

Flow rate
0.0L/min to 110% of maximum
flow rate or lessOver 110% of maximum flowrate to 120% or lessOver 120% of maximum flow
rate

HY1

ON

HY1

Unit display

Figure 1

Model
CX10A
CX15A
CX20A

Press F2 to set to Switch input(Remote zero adjustment and
To "Normal display:
To "Normal display:
5 Output Mode and Output Operation Accumulated output reset).
Momentary value display"
Total Accumulated value display"<OUT1 output ><Normal display: Momentary value display>(1) Level judgment mode
The main screen shows the momentary value.

*Perform zero adjustment(F40)at the time of installation.

Main screen

1 sec

When the main
screen is set to
momentary
value
After warming up

2K (White)2(白）3K (Blue)3(青）3K(Blue)
3(青）Accumulated flow rate

*This product is for liquids that do not corrode wetted parts.
*It is not a product that guarantees absolute accuracy.
*Correct measurement is not ensured for fluids with lower conductivity(5μS/cm) are not guaranteed.
*Do not touch the electrical wire connection to avoid electrical shock.
Be sure to power off the product before connecting the wires. Also,
Do not touch the current carrying parts with a wet hand.
*Do not use the product with positive ground.
*Refer to "12 Cautions" at the end of this sheet for other cautions.

Output display

1 sec

4K (Black)
4(黒）

Q

!

[Power ON] → See Figure 1

VV△Caution

Configuration switch<製品側> side> <User<ユーザ側>
side><ProductV

Follow the instructions given in this sheet when using the product.
Failure to do so may cause a damage to the product or an incident.
Keep this instructions sheet so that you can refer to it whenever necessary.

1 Part Names
Entire view

<Switch input><ユーザ側><User side><製品側><Product
side>

2 sec

(Press and hold□ for 2 sec)

Release □ when the function
display shown to the left
appears.
You can switch the Function display by pressing △ or ▽ .
Normal display(3) How to return to normal display
・Press and hold □ for 2 sec while "F*" is shown to return to the normal
display.
・The screen also returns automatically to the normal display if you do
nothing for 20 seconds. Note that if you do nothing for 20 seconds without
confirming the selected value and the screen automatically returns to thenormal display, the selected value will be cancelled.

F3 <Response time setting>□

Return to Function display (F3)

(Set)
□

The current response time (sec) is shown on the sub screen and you can change it bypressing △ and ▽ buttons to 0.25 sec, 0.5 sec, 1 sec, 2 sec, or 5 sec.

Output mode selection
Windowmode (2)Leveljudgementmode (1)△▽Trip
accumulated
outputmode(3)△ outpude (3)▽*As a condition, please wait for about1 minute when the wateris full and the water is stopped, and check that there is no□ + ▽flow before carrying out.
(Press and hold□△for 4 sec)

Alarm output
mode (5)

△

△

▽

▽

□
△
▽

OUT1

Flow direction

Contact logic selection

OUT2

Sub screen Off

Arbitrary text

△

△

△

△

▽

▽

▽

▽

△

□

(Set)

▽

Return to Function display (F4)□F5 <Flow direction setting>Flow direction selection

Screen according to the selected output mode
(1) Output mode: Level judgement mode
The current value is shown on the sub screen and you can change it bypressing △ and ▽ buttons.
Level standard value
Hysteresis width□□
Return to Function
display (F1)(Set)
(2) Output mode: Window mode
The current value is shown on the sub screen and you can change it bypressing △ and ▽ buttons.
Level standard value(lower limit)

Level standard value(upper limit)
□

□

▽

□

Accumulated level setting
□

□

□

□

□

(4) Output mode: Accumulated pulse output
The current value is shown on the sub screen and you can change it bypressing △ and ▽ buttons.
Pulse rate□
Return to Function display (F1)(Set)
You can set the pulse rate as follows depending on the flow rate range.

□

Flow rate range
0.5 to 15L/min
2.0 to 60L/min
〇
×
〇
〇
×
〇
〇
〇
×
〇

Analog output

Switch input
△
▽

□

(Set)

Return to Function display (F2)

OUT1
Outputs switch output ON. Output display 1 turns on.
OUT2
Outputs 5V or 20mA for analog output. Output display 2 turns on.
For digital input, output display 2 turns on synchronously with input ON.
During forced output, the screen does not return to the normal display
automatically even when you do nothing for 20 sec.

□

Normal mode and parallel mode selection
Normal mode

Parallel mode

□

□

△

Return to Function display (F6)Return to Function
display (F60)▽

F70 <Arbitrary text setting>Arbitrary text

10 Advanced Settings (Function Mode II)(3) How to return to normal display
・Press and hold □ for 2 sec while "F*" is shown to return to the normal
display.
・The screen also returns automatically to the normal display if you do
nothing for 20 seconds. Note that if you do nothing for 20 seconds without
confirming the selected value and the screen automatically returns to thenormal display, the selected value will be cancelled.
F10<Analog output FS setting>
□

□

(Set)
Sub screen turns on.
□

Return to Function display (F80)(Set)
ON/OFF is shown on the sub screen and you can change it by pressing△ and ▽ buttons. OFF means the normal display and ON means thereverse display.
□ + ▽Keep holding
F90<Factory default setting>(Press andthe button
hold for 1 sec)
when "ON"□△blinks on the
sub screen.
▽
Release the button.

Return to Function display (F90)
After 2 sec

Input mode selection△

Accumulated
output reset(Set)

Always: Green

△

△

△

▽

▽

▽

▽
□

(1): Size(2): Connection
10 (3/8)
A (Pipe taper thread Rc)
15 (1/2)
20 (3/4)

Display color selection
□

(Set)

Return to Function
display (F70)

F80 <Reverse display setting>

Return to Function display (F10)

ON: RedOFF: Green Always: Red

ON: Green
OFF: Red

selection(Press and hold for 1 sec)□□

Release □ when the
Function display shown
to the left appears.

□.........

Press △ and ▽ buttons to change the character ofthe blinking digit.

Description
Sets the full scale Function for the analog output.
Sets the display color for the main screen.
Enables/disables the ECO mode.
Runs zero adjustment.
Selects output functions to forcibly run.
Selects the parallel mode.
Selects arbitrary text shown on the sub screen.
Reverse the display direction upside down.
Returns the setting to the factory defaults.

□

□

□

<Overview>(1) List of items for Function mode II
The Function mode II provides the following setting items.
Item
Analog output FS
Display color
ECO mode
Zero adjustment
Forced output
Parallel mode
Arbitrary text
Reverse display
Factory defaults

Return toFunction
display (F20)□ + ▽(Press and hold for 3
sec after blinking)(3): Output
NV (NPN, voltage output )NA (NPN, current output )PV (PNP, voltage output )PA (PNP, current output )△▽F30 <ECO mode setting>□□

Output mode
AnalogoutputVoltage output
Current output

Switch input

Input time
Short current

Power supply voltage
Current consumption
Protection structure
Usage
temperature
range
Usage humidity range
Fluid contact material
Weight (body)

10
15
20
0.5 to 15 L/min
2.0 to 60 L/min
3% of the maximum flow rate within the measurement
range
0 to 85C (no freezing)
Momentary flow rate L/min Accumulated flow rate L, kL,
ML±2.0%F.S.
±5.0%F.S. (@25C)±5.0%F.S. (@25C)
0 to 1.0MPa (0 to 85℃) , 0 to 2.0MPa (0 to 50℃)
3.0MPa0.25s/0.5s/1s/2s/5s (initial setting: 1s)
0.0 to 99999999.9L
In 0.1L units
NPN or PNP transistor output
50mA
30VDC
NPN: 2.0V or less PNP: 2.4V or less
Rush current alarm, rush current protection
Selectable from level judgement mode, window mode,
trip accumulated output mode, accumulated pulse output
mode, alarm output mode
Voltage output: 1 to 5V Load impedance: 50kΩ or more
Current output : 4 to 20mA
Load impedance: 500Ω or less
20ms or more
Approx. 2mA
Dual screen (main screen green/red display,
sub screen White display)
Display refresh interval 5 times/s
24VDC±10% Ripple P-P±10% or less
65mA or less
IP65 or equivalent (with cable option C3)
0 to 50℃ (no dewing)
35 to 85%RH (no dewing)
PPS, FKM, CAC804
Approx. 460g
Approx. 490g
Approx. 520g

*The repeatability is the variation of the average value when measured for 240 seconds under
the same conditions.

12 Cautions

The current unit is shown on the sub screen and you can change
it by pressing △ and ▽ buttons to L, kL, or ML.

Display
F10
F20
F30
F40
F50
F60
F70
F80
F90

Repeat precision*
Temper Environmental
ature
Fluid
Pressure range
Pressure resistance
Response time

Display method(Set)
The current value is shown on the sub screen and you can use △ and ▽ 11 Specifications
buttons to set the full scale value of the analog output from 10 to 100% of the <Model name>maximum flow rate.(The unit enter is L/min)
CX □ □ □ – □ □(1) (2)(3)
F20 <Display color setting>

Remote zero adjustment□□△

Return to Function display (F5)□

Fluid temperature

Switch output
Maximum load current
Maximum applied voltage
Internal voltage drop
Output protection▽

F6 <Total Accumulated value unit setting>□

Output/input mode selectionF

F50 <Fcrced output setting>(Set)

F2<OUT2 setting> * Initial setting: Analog output mode□

FailureF60 <Parallel mode setting>If you install the devises next to each other, the devices should be set as
normal mode and pararell mode.

▽(Press and hold for 4 sec)
Do not release □ when the function mode I screen appears in 2 seconds.
You can switch the Function display by pressing △ or ▽ .

Return to Function display (F1)(Set)
Sub screen turns on.

Pulse rate
[L/Pulse]
0.01
0.1
0.2
1
10

△

▽

Normal display(Press and hold for 1 sec)□□△

(2) How to switch to Function mode II

The current value is shown on the sub screen and you can change it by pressing △ and ▽ buttons.

□

Success(Set)

Hysteresis width

Return toFunction(Set)
display (F1)
(3) Output mode: Accumulated output mode(Increment/Decrement)
Decrement mode
Increment mode
Increment mode/△
Decrement mode
selection□□Reverse flow detection
enable/disable

Low flow cut flow rate

Accumulated flow rate range△▽

Normal点論理 close
selection

Normal open□

Sub screen selection□□

In approx. 20 sec

Return to Function display (F40)

Caliber
Rated flow rate range

Display unit▽

F4 <Sub screen setting>Accumulated
pulse
mode (4)When zero adjustment
starts, the sub screen
shows an indicator in
5-sec intervals.

F40 <Zero adjustment>□

Environment

F1 <OUT1 setting> * Initial setting: Level judgement, Normal open
Selection of output mode and contact logic<Specifications>
Return to Function display (F30)(Set)
ON/OFF is shown on the sub screen and you can change it by pressing△ and ▽ buttons. If you set it to ON, the ECO mode is enabled and thescreen turns off when you do nothing for 1 minute.

Caliber
Applicable fluid
Applicable conductivity of fluid
Detection method

10
15
20
Water and fluid which are not corrosive to the fluid contact
material.
5μS/cm to 3mS/cm
Capacitance Electromagnetic

・Use the product within the rated specification ranges.
・Do not use the product in a way where it directly contacts beverage, food,or medical fluid.
・Do not use the product in a flammable gas atmosphere.
・Do not use the product where condensation can form inside the product.
Note that if a fluid with a lower temperature than the ambient temperature
flows through the product, condensation may form inside the product,
which may adversely affect its performance.
・Observe the rated fluid temperature range and take a freezing prevention
measure (e.g., using antifreeze) in a cold environment.
・Observe the rated pressure range.
・Observe the rated flow rate range.
・Ensure that no gas is mixed in the pipe.
・Stop the product before changing any of the settings.
・Do not use any display or output during the warming up period (10seconds) after power-on.
・Do not press the button with a sharp-pointed object.
・Do not place the product where it is exposed to a direct sunlight or heatradiated from a heat source.
・The product can be installed in any orientation, however, for horizontal
piping, it is recommended to install it so that the display surface is parallelto the ground in order to minimize influence by bubbles.
・Set the flow directions of pipes and flowsensor correctly.
・Do not drop, hit, or apply an excessive impact to the product. Hold the bodywhen you handle the product (never hold the cables).
・ Do not install the product where it is exposed to a strong compression
power, tension, load, or vibration.
・Do not install the product on a footstep or do not place a heavy object on it.
・Be careful so that sealing tape or adhesive does not get out of the piping
connection.
・Use a straight pipe immediately before the sensor as much as possible andbe sure that there is no obstacle (e.g., extra packing) which disturbs theflow.
・Attach the flow rate adjustment valve and other parts at the downstream ofthe sensor.
・If there is a foreign material or oil inside the pipe, wash it before installingthe sensor.
・Wrong wiring may cause a failure.
・Check the wire colors before wiring.
・It is recommended to isolate the power supply and receivers electricallyfrom other devices.
・Do not apply an excessive tension to the cables.
・Keep the cables away from the power and motor cables.
・Keep the product away from a strong magnet or magnetic field.
・Pressure within a fluid seal circuit can increase due to temperature change
and may damage the product. Provide the system with a relieve valve to
avoid a fluid seal circuit.
・With sensors arranged in parallel, if the display readings and analog output
do not stabilize, they can be stabilized by setting longer response time orusing parallel mode.
・In case of consideration to arrange plural pieces of the products for a Flow
Rate Type Filling Apparatus, please judge such usage after checking thePatent Number JP3916032B2.

Chitose, Atsuta-ku, Nagoya, Aichi Prefecture 456-8691 JAPANhttps://www.aichitokei.co.jp/
Ver6.0202211