Kofloc FML300-D Series User manual

MJ400309B1
Liquid Vortex Flow Meter
with Temperature Correction
(With Display)
FML300-D SERIES
INSTRUCTION MANUAL

MJ400309B1
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Please read this manual thoroughly prior to installing and using the product.
This way it is possible to ensure the performance and safety of the product and
prevent possible accidents and damage to the product due to incorrect use.
When the product has failed or is considered to require readjustment, please
contact our sales office. Our experienced technical staff will give you appropriate
advice. Please follow the instructions given.
Please note that if you repair/modify the product yourself, not only serious
accidents may occur, but our warranty will become void.
The contents of the manual are subject to change without notice for
improvement. Prior to shipment, every care has been taken in preparing this
manual not to mention the product itself, but if you notice any imperfections,
errors or omission, please contact KOFLOC.
<< Prior to use >> and << Precautions for use >>
Various alert symbols and signal words are used in this manual and attached to the
product to ensure correct use of the product and to prevent possible personal injury or
loss of life and property damage. The symbols and meanings of the signal words are as
follows:
Ignoring this symbol and handling the product incorrectly may
result in loss of life or serious injury.
Ignoring this symbol and handling the product
incorrectly may result in personal injury or damage to
property.
WARNING
CAUTION

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Table of Contents
1. Foreword ・・・・・・・・・・・・・・・・・・・・・・・・3
2. Precautions for Use ・・・・・・・・・・・・・・・・・・・3
3. Overview of the Product ・・・・・・・・・・・・・・・・・6
4. Specifications of the Product ・・・・・・・・・・・・・・・7
5. Connection Specifications・・・・・・・・・・・・・・・・・・8
6. Operation and Setting of the Display・・・・・・・・・・・・10
7. Range of Use・・・・・・・・・・・・・・・・・・・・・・・・17
8. External View・・・・・・・・・・・・・・・・・・・・・・・18
9. Communication Setting・・・・・・・・・・・・・・・・・・19
10. Product Warranty・・・・・・・・・・・・・・・・・・・・・22

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1. 1. Foreword
Thank you for your selection of the liquid vortex flow meter with temperature
correction FML300-D Series. Prior to using your new equipment, please read this
manual thoroughly to ensure it is used in the correct way. Please note that this
manual is subject to change without notice.
2. Precautions for Use
◆Prior to use
Every product ordered by you has been assembled and adjusted according to your
specifications. The flow rate range, output spec. and other data are shown on the
nameplate on the side face of the case. Please make sure they meet your ordered
specifications.
Symbol Description
301 0.3~2.5L/min.
302 0.4~4L/min.
303 2.0~16L/min.
304 5.0~50L/min.
305 10~100L/min.
306 25～250L/min
Symbol Description
O Tube end
X Special spec.
Symbol Description
O 3m
X Special spec.
Rated flow rate range
Connection type※
Cable length※
FML 30 － I / P － D － －
V 210511 - 022
Serial No.
※Not printed on the nameplate
Model

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◆Handling
(1) Use the meter with measuring tube filled with fluid to measure.
(2) Do not apply a water pressure exceeding the proof pressure nor wash with counter
flow. Such action may damage the sensor and cause troubles.
(3) Do not use the meter in a place under direct sunlight, or hot/humid place.
(4) Note that if fluid to measure inside the tube freezes, the sensor may be damaged.
If there is a possibility of freezing, provide heat insulation measures.
(5) FML300 Series is made of resin including the thread part. When installing it, be
careful not to apply an unnecessarily strong force.
(6) Do not hold the output cable when moving the meter. Such action may break the meter.
(7) Do not conduct insulation resistance/withstand voltage tests. Such tests may
damage the meter.
(8) To maintain the accuracy, warm up the meter (about 10 minutes after power on).
◆Installation and piping
Take the following precautions to use the product safely and accurately over a long period
of time:
(1) Fluid to measure is liquid. Use industrial water equivalent to pure water/tap water.
(2) Do not use the meter in a place under direct sunlight, or hot/humid place.
(3) Install the meter in a place free of corrosive gases.
(4) This product is of splash-proof structure, but avoid rain and water.
(5) Install the meter in a place free of vibration and impact.
(6) When laying piping, do not hold the cover, but hold down the body part.
(7) The meter may be installed in any posture. Match the direction of flow with the arrow
shown on the side of the main unit.
(8) To eliminate influence of turbulence and pulsating current, provide straight pipe as
long as possible. The recommended dimensions of straight pipe are as shown below.
(Unit: mm)
Model FML301 FML302 FML303 FML304 FML305 FML306
D (ID of tube) 6.35 6.35 9.50 15.88 22.20 33.70
A (product tube length) 60.0 60.0 60.0 60.0 50.0 85.0
IN side required straight pipe length: 10D
63.5 63.5 95.0 158.8 222.0 337.0
OUT side required straight pipe length: 5D
31.8 31.8 47.5 79.4 111.0 168.5

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When washing the tube of the product, be careful not to damage the
inside. Scratches are a cause of deterioration of accuracy.
Make sure that the connections of piping are not leaking. Using
unsafe liquid without such check may possibly result in serious
accidents.
◆Storage of the product
When the product is received, store it as described below until it is put in use:
(1) Store the product in the package in which it was received from KOFLOC.
(2) Store the product in a place free of rain and water.
(3) Store the product in a place free of vibration and impact.
(4) Store the product in a place of normal temperature and normal humidity (25℃,
65%RH).
(5) Store the product in a place free of dust and corrosive gases.
(6) Store the product free of a strong electric/magnetic field.
To store the product that has been used and has remaining measuring fluid in the
tube, wash it out completely before storing the product.
When disposing of the product, follow the local ordinance.
CAUTION
WARNING
CAUTION

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3. Overview of the Product
The liquid vortex flow meter with temperature correction FML300 Series is a device that
measures the velocity (vortex) of liquid (water) that flows in the tube and detects a vortex
frequency proportional to the velocity and then outputs appropriate values via a processing
circuit.
The flow passage of the product is made of New PFA to realize high mechanical strength and
chemical resistance.
Also, a simple structure with little liquid accumulation realizes a maintenance free feature
requiring no periodical maintenance and inspection.
Furthermore, fluid temperature correction by means of a built-in temperature sensor
enables highly accurate flow rate measurement in a wide range of fluid temperature.
Measurement principle
Vortex generator
V
ortex detector
Karman vortex
P
iezoelectric element
T
emperature detector

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4. Specifications of the Product
S
eries
FML
M
odel
301
-
D
302
-
D
303
-
D
304
-
D
305
-
D
3
06
-
D
F
luid
Pure water and chemicals
C
onnection
(inch)
I.D. 1/4”
O.D. 3/8”
I.D. 1/4”
O.D. 3/8”
I.D. 3/8”
O.D. 1/2”
I.D. 5/8”
O.D. 3/4”
I.D. 7/8”
O.D. 1”
I.D. 1(21/64)”
O.D. 1(1/2)”
Max. operating
pressure @25℃
1MPa 0.75MPa 0.65MPa
Material in contact
with liquid
New PFA
Flow rate range
0.3～2.5L/min 0.4～4.0L/min 2.0～16L/min 5.0～50L/min
10～100L/min
25～250L/min
Full scale (F.S.) 2.5L/min 4.0L/min 16L/min 50L/min 100L/min 250L/min
Measuring
max. flow rate
110%F.S.
Output1※1 ① Instantaneous flow rate output：4-20mA output (0-100%F.S.),
② Instantaneous flow rate output：Pulse output (1kHz @F.S., Duty:50%)
Output2※2 ③ Temperature output：4-20mA output (0℃-
100℃)※3
④ Integrated output：Pulse output
(Unit: 10mL/P, width:5ms)
③ Temperature output：4-20mA output (0℃-
100℃)※3
④Integrated output：Pulse output
(Unit: :100mL/P, width: 5ms)
Flow rate
accuracy※4
±2.0%F.S.
(Fluid temperature: 15℃ to 60℃)
±3.0%F.S.
(Fluid temp.: 15℃ to 60℃)
Reproducibility
±0.5%F.S.
Temperature
accuracy ±2℃ ±0.15×ΔT℃ ΔT : |ambient temp. – fluid temp.|
Fluid temperature
0
t
o 90℃
(no freezing, no boiling)
Ambient temperature
0
t
o 50℃
(no freezing)
Ambient humidity
95%RH
max.
Storage temperature
-
10
t
o
70
℃
(no freezing)
Power supply voltage
12
t
o 24VDC ±10%
C
urrent consumption 80mA
max.
D
isplay
OLED display (luminescent)：white, AL1,AL2 (red LED) ,
flow rate/temperature/integrated value indication※5
A
larm output
※6
AL1, AL2
Set by flow rate value/temperature value. NPN open collector output Independent
2 outputs
(Condition: Measured value ≧ set value, measured value ≦ set value, set value ≦
measured value ≦ set value)
Cover material
PBT
(Color: black)
Protection
structure Equivalent to IP65 (Drip-proof & dust-proof spec.)
Cable
4-pair (8-core)
s
hielded wire, length 3m, finished OD 5.0mm
Conductor: Tin plated annealed stranded wire AWG26(30/0.08TA)
Insulator: Lead-free heat resistant semirigid vinyl chloride mixture
Insulator OD 0.79mm
Sheath: Lead-free heat resistant vinyl chloride mixture Black (Matted)
A
pplicable
standard RoHS2 10 Substance、CE
W
eight (cable
included) Approx. 202g
Approx.
202g
Approx.
202g
Approx.
217g
Approx.
242g
Approx.
365g
※1 The output of either ① or ② only is selectable. Select the output by operation on the display.
※2 The output of either ③ or ④ only is selectable. Select the output by operation on the display.
※3 The output is valid only when liquid is let flow.
※4 Accuracy at ambient temperature 25℃.
※5 Select instantaneous flow rate indication, temperature indication and integrated value indication by
operation on the display.
※6 Set by operation on the display.

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5. Connection Specifications
◆OUT1: Instantaneous flow rate output [FLOW 4-20mA] ，
OUT2: Temperature output [TEMP.OUT] selected
W
ire
color
IN/OUT
S
ignal
name
D
escription
R
emarks
R
ed
IN
VIN
12V, 24V power
supply 12VDC, 24VDC ±10%
(Current consumption: 140mA max.)
G
reen
GND
0V power supply
O
range
OUT OUT1 Flow rate output
4-20mA output (0L/min.-F.S.L/min.)
Allowable load resistance: 24VDC
input 250Ω－500Ω
12VDC input 250Ω max.
B
lue
OUT
AL1
C
ontact output
NPN
open collector output
Max. 30VDC/80mA
W
hite
OUT OUT2 Temperature output
4-20mA output (0℃ - 100℃)
Allowable load resistance: 24VDC
input 250Ω－500Ω
12VDC input 250Ω max.
B
lack
OUT
AL2
C
ontact output
NPN
open collector output
Max. 30VDC/80mA
Y
ellow
－ TR(-)
S
erial communication
function
(RS485)
Modbus
RTU
supported
Transmission method: 2-wire, half
duplex
B
rown
－ TR(+)
FG －
S
hield
S
hielded wire
C
onnect to
frame ground (FG).
◆Connection diagram
※The shielded wire has been connected to GND inside the product.
Prior to turning on the power, make sure that wiring has been laid correctly.
Incorrect wiring is a cause of breakage, malfunction or fire.
Factory setting
Main unit
Load
Load
Load
Load
Power
supply
Power
supply
User unit
Communication
converter
Shielded wire
Grounding
Red
Orange
White
Yellow
Brown
Blue
Black
Green
WARNING

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◆OUT1: Instantaneous flow rate output [FLOW PULSE], OUT2: Integrated output [PULSE OUT] selected
Wire
color
IN/OUT Signal
name
Description Remarks
R
ed
IN VIN
12V, 24V power
supply 12VDC, 24VDC ±10%
(Current consumption: 140mA max.)
G
reen
GND
0V power supply
O
range
OUT OUT1 Flow rate output
Pulse
output (1kHz @F.S. Duty:50%)
NPN open collector output
Max. 30VDC/80mA
B
lue
OUT AL1
C
ontact output
NPN
open collector output
Max. 30VDC/80mA
White OUT OUT2
Integrated output
(Pulse output)
Pulse unit 10mL/P, width 5ms (301-D, 302-
D, 303-D)
Pulse unit 100mL/P, width 5ms (304-D,
305-D,306-D)
NPN open collector output
Max. 30VDC/80mA
B
lack
OUT AL2
C
ontact output
NPN
open collector output
Max. 30VDC/80mA
Y
ellow
－ TR(-)
S
erial communication
function
(RS485)
Modbus RTU
supported
Transmission method: 2-wire, half duplex
B
rown
－ TR(+)
FG － Shield
S
hielded wire
C
onnect to frame ground (FG).
◆Connection diagram
※The shielded wire has been connected to GND inside the product.
Prior to turning on the power, make sure that wiring has been laid correctly.
Incorrect wiring is a cause of breakage, malfunction or fire.
Main unit
Load
Load
Load Load
supply
supply
Power
Power
User unit
Shielded wire Grounding
Communication
converter
Red
Orange
White
Yellow
Brown
Blue
Black
Green
WARNING

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6. Operation and Setting of the Display
◆Display
Name Function
Main screen Shows an instantaneous flow rate value, temperature value and integrated
value.
UP button Used to select a mode.
SET button Used to select a mode and accept a set value.
DOWN button Used to select a mode.
AL1 indicator Lights when the AL1 contact is on and goes off when the AL1 contact is off.
(LED: red)
AL2 indicator Lights when the AL2 contact is on and goes off when the AL2 contact is off.
(LED: red)
◆Display operation and initial parameters
The factory setting of functions is as shown below. To change the setting, follow the display
operation procedures described on respective pages.
No. Setting item Display operation Factory setting
1 Contents change
Integrated value
display method
⇒ To page 11 ●Instantaneous flow rate indication,
temperature indication
2 OUT1 output
change
⇒ To page 12 [Flow 4-20mA]
●4-20mA output (0L/min.-F.S.L/min.）
3 OUT2 output
change
⇒ To page 13 [Temp.OUT] ●4-20mA output (0℃-100℃)
4 AL1 setting input ⇒ To page 14 [NONE] ●No alarm output setting
5 AL2 setting input ⇒ To page 14 [NONE] ●No alarm output setting
6 Set value check ⇒ To page 16 －
Main screen
UP button
SET button
DOWN button
AL1
indicator
AL2
indicator

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◆Procedure to change the setting of display contents
・The contents to show on the main screen and their directions can be changed and integrated
values can be shown.
＜Function flowchart＞
【Display change procedure】
【Integrated value display】
・The max. value to be integrated is “99999999”. When the upper limit value has been reached,
that value is held.
・The number of indicating digits is four. The upper 4 digits and lower 4 digits can be switched
over with / .
Normal display
：Pressed once
※1
：Pressed once
：
Pressed & held
：Pressed once ：Pressed
once
：Pressed & held
Normal display
Integrated display
※1 Auto transition after no operation for about 3 seconds.
※2 Auto transition to normal display after no operation
for about 10 seconds.
：Pressed & held
Pressed once：
：Pressed once
When “RESET” is selected,
the integrated value is reset.
When “NO” is selected, the
integrated value is not reset.
：Pressed & held
※２
※２

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◆OUT 1 setting change procedure
・The OUT 1 output can be selected between instantaneous flow rate (4 – 20 mA) and
instantaneous flow rate (pulse).
＜Function flowchart＞
※1 Auto transition after no operation for about 3 seconds.
※2 Auto transition to normal display after no operation for about 10 seconds.
Refer to “5. Connection Specifications” to lay wiring correctly.
Normal display
※1
：Pressed & held
：Pressed & held
Instantaneous flow rate output: 4 – 20 mA
output (0 – 100% F.S.)
Instantaneous flow rate output: Pulse output
(1kHz @F.S.,Duty:50%)
：Pressed once
：Pressed once
：Pressed once ：Pressed
once
：Pressed
& held
※２
※２
WARNING

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◆OUT 2 setting change procedure
・The OUT 2 output can be selected between temperature (4 – 20 mA) and integrated output
(pulse output).
＜Function flowchart＞
※1 Auto transition after no operation for about 3 seconds.
※2 Auto transition to normal display after no operation for about 10 seconds.
Refer to “5. Connection Specifications” to lay wiring correctly.
Normal display
※1
：Pressed & held
：Pressed & held
Temperature output: 4-20mA output (0℃
- 100℃)
Integrated output: Pulse output
：Pressed once
：Pressed once
：Pressed once
：Pressed
once
：Pressed
& held
※２
※２
WARNING

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◆AL1 and AL2 setting items
・The following conditions can be set to AL1 and AL2 respectively.
Item selected Main screen selected Output
Hysteresis mode
(Upper limit
alarm)
Set by flow rate value
[Instantaneous flow rate≧set value]
Set by temperature valu
e
[ Measured temperature≧set value]
Hysteresis mode
(Lower limit
alarm)
S
et by flow rate
value
[Instantaneous flow rate≦set value]
S
et by temperature
value
[Measured temperature≦set value]
Wind comparator
mode
(Upper/lower limit
alarm)
S
et by flow rate value
[Set value≦measured value≦set value]
S
et by temperature
value
[ Set value≦measured value≦set value]
※A value of flow rate value: 0 – 110% and temperature value: 0 – 100℃ can be set.
※For a detailed explanation of the settable range, refer to “Alarm Set Range” on page 21.
Hysteresis
width
Hysteresis
width
Hysteresis
width
width
Hysteresis
Hysteresis
width
Hysteresis
width
Hysteresis
width
Hysteresis
width
Flow rate small
Flow rate small
Flow rate small
Flow rate large
Flow rate large
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Set value
Temp. low
Temp. low
Temp. low
Temp. high
Temp. high
Temp. high
Flow rate large

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◆AL1 and AL2 setting method
＜Function flowchart＞
Normal display
※1
Pressed & held
Pressed once：
：Pressed once ：Pressed once
：Pressed once
：Pressed & held
※5
：
Numeric value select (Selected digit flashes)
： Digit select (Select digit moves to right.)
After a digit moves from least sig. digit, all digits flash.
： Pressed & held to reflect a set value.
：
Pressed once to return to digit select.
.
Set value input
： Pressed once
※
1
A
uto transition after no operation for about 3 seconds.
※2 Auto transition to normal display after no operation for about 10 seconds and also
when is pressed and held.
※3 Auto transition to normal display after no operation for about 10 seconds and
transition to FUNCTION when is pressed and held.
※4 All digits flashing
※5 When all digits are flashing, pressing and holding reflects a set value.
If is pressed and held when a digit is being selected, a set value is not reflected.
：
Numeric value select (Selected digit flashes)
： Digit select (Select digit moves to right.)
After a digit moves from least sig. digit, all digits flash.
： Pressed & held to reflect a set value.
：
Pressed once to return to digit select.
Hysteresis width input
：Pressed & held※4
：Pressed once
※2
※
3
：
Numeric value select (Selected digit flashes)
： Digit select (Select digit moves to right.)
After a digit moves from least sig. digit, all digits flash.
： Pressed & held to reflect a set value.
：
Pressed once to return to digit
select
.
：
Numeric value select (Selected digit flashes)
： Digit select (Select digit moves to right.)
After a digit moves from least sig. digit, all digits flash.
： Pressed & held to reflect a set value.
：
Pressed once to return to digit select.
：Pressed & held※4
Pressed &
held ※4
：Pressed once
※3
※3 ※3
※3
：Pressed once
Set value 1 input
Set value 2 input

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◆Set value check
・The set parameter values can be checked by the following procedure:
＜Function flowchart＞
Same contents as ALM1.
Normal display
or
or
For details of setting method, go to page 12.
UP/DOWN
pressed & held
simultaneously
：Pressed & held
or
・
Software version is shown.
or or
or
For details of setting method, go to page 13.
For details of setting method, go to page 15.
For details of setting method, go to page 15.
or or
or or
For details of setting method, go to page 19.

MJ400309B1
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7. Range of Use
◆The relation between the flow rate output range and the accuracy guarantee range is as
shown below. Check to see if it matches the conditions of use again.
◆The coefficients of kinematic viscosity to guarantee the accuracy are as shown below.
Check to see if they match the conditions of use again.
FML304
Flow rate output range
Accuracy guarantee range
Flow rate (F.S.)
FML30X Series Flow Rate Output Range and Accuracy Guarantee Range
Fluid temperature (℃)
Coefficient of kinematic viscosity
(×10-6m2/s)
Coefficient of kinematic viscosity
(×10-6m2/s)
Coefficient of kinematic viscosity
(×10-6m2/s)
Coefficient of kinematic viscosity
(×10-6m2/s)
Fluid temperature (℃)
Fluid temperature (℃)
Fluid temperature (℃)
Fluid temperature (℃)
FML305
Fluid temperature (℃)
Coefficient of kinematic viscosity
(×10-6m2/s)
FML301 FML302 FML303
FML306
Fluid temperature (℃)
Coefficient of kinematic viscosity
(×10-6m2/s)

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8. External View
◆FML301-D～FML305-D
O.D. I.D. H H0
FML301-D 3/8 inch 9.52 6.35 50.5 13.0
FML302-D 3/8 inch 9.52 6.35 50.5 13.0
FML303-D 1/2 inch 12.70 9.52 50.5 13.0
FML304-D 3/4 inch 19.05 15.87 52.5 12.0
FML305-D 1 inch 25.40 22.20 61.2 15.7
FML306-D 1(1/2) inch 38.10 33.70 75.5 22.5
Dimensions(mm)
Connection tube
size
Model
*Inside ( ) dimension: FML-306-D

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9. Communication Setting
This product supports Modbus RTU communication. Follow the standard to use the product.
◆RS-485 basic specifications
＜Function flowchart＞
Item Description Remarks
Synchronization method Start-stop －
Transmission speed 38400 / 19200 / 9600bps Set on main screen
Start-stop bit 1 bit －
Data length 8 bits －
Parity NONE / ODD / EVEN Set on main screen
Transmission method 2-wire, half duplex
Isolation Between communication – control: Non-isolated
Communication ID 1 – 247 Set on main screen
Normal display
：Pressed & held
：
Numeric value select (Selected digit flashes)
： Digit select (Select digit moves to right.)
After a digit moves from least sig. digit, all digits flash.
： Pressed & held to reflect a set value.
：
Pressed once to return to digit
select
.
Com. ID set
：Pressed once
：Pressed & held (with all digits flashing)
Trans. speed set
Parity set
：Pressed once
：Pressed once
：Pressed & held
：
Pressed & held (Auto transition after no operation for
about 10 seconds.)