CFor Chemicals

Flow Controller

FLC-US40

Flow controller

Integrated flow meter and control valve for installation in narrow spaces.
High performance stepper motor incorporated■ Fully closed to fully open (0.3s response time)■ Multi communication (with Modbus RTU, up to 31 connections)■ Flow range (1:20)■ Overshoot suppression capability■ Totalized flow volume prediction capability■ Easy operation status confirmation (8-color LED display)■■

Model number selection
Connection
size

FLC-US40 -Units

Max. Flow- A

I/O type Error output I/O Cable length Comm. Cable length--ASpecialized item(s)-BSpecify length (m)Specify length (m)Max.
ABlankNoEYesA

4 – 20 mA

F

Serial communication＊2 m (standard)＊2 m (standard)Specify from Flow range

mL/minFlow range

Connection Size

15 – 300 mL/min
G08

25 – 500 mL/min

Tube1/4″

50 – 1000 mL/min
100 – 2000 mL/min
25 – 500 mL/min
50 – 1000 mL/min

G10

100 – 2000 mL/min

Tube 3/8″

150 – 3000 mL/min
250 – 5000 mL/min

LED
LED status
LED located on the top of this product indicates the below status.
ItemStatus
Green LED turned onControl OFFLight blue LED turned on

Adjustment in progressBlue LED flashed

Adjustment failed

Blue LED flashed twice

Valve life

Little life left

Orange LED flashed twice

Flow at 0% valve position

Flow above a certain level detected at 0% valve position

Orange LED turned on

Flow error

Measurement error

Yellow LED flashed twice

Pressure error

Pressure insufficient

Yellow LED turned on

Valve position input

No input signal detected

Red LED flashed twice

System halted

Red LED turned on

Motor error detected

Purple LED turned on

Error detection timeout

Pink LED turned on / off (1 sec interval)

Control halted

Pink LED flashed twice

Position sensor disconnected

Pink LED turned on

Flow meter error detected

Purple LED flashed twice

While in operation
Zero point adjustment

Warning※1

Internal memory
MotorError※1

Error processing※1

Position sensor※1

Flow sensor※1※1 Flow control forced stop function. Control is forced to stop when errors occur.

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薬液・純水用Specifications
Product nameFlow Controller

Drive unit

Stepper motor
G08

Flow range (mL/min)

15 – 300
Flow accuracy ※1Flow control accuracy

25 – 500

100 – 2000100 – 2000

150 – 3000

±1% R.D. ※ ≦ 20% F.S. : ±0.2% F.S(Min. : 4 mL/min)±1% R.D. ※ ≦ 20% F.S. : ±0.2% F.S.

±1% R.D. ※ ≦ 20% F.S. : ±0.2% F.S.

(Min. : 1 mL/min)(Min. : 2 mL/min)±2% R.D.※ ≦ 20% F.S. : ±0.4% F.S.

±2% R.D.※ ≦ 20% F.S. : ±0.4% F.S.

(Min. : 1 mL/min)(Min. : 2 mL/min)

Connection sizes±1% R.D±1% R.D.

(Min. : 1 mL/min)(Min. : 2 mL/min)

TUBE 1/4” (φ6.35×4.35)

TUBE 3/8” (φ9.52×6.35)

φ3

φ50.05 –φ3

φ50.1 – 0.3MPa(G)0.3MPa(G)0.05MPa

0.1MPaWithstand pressure

0.5MPa(G)Input analog signal vs flow rate

4 mA DC: 0 mL/min, 20 mA DC: Max. flow rate specified in above Control Range

Fluid type

DIW / Chemicals (To be discussed)

Specific. Gravity

1.0Viscosity

1.0mPa・s (To be discussed)

Fluid temperatures

10 – 90°C ※Non-condensing (Pressure limit varies with fluid temperatures used)

Operating temperatures

15 – 50°C ※Non-condensing

Wetted materials

PFA, PTFE

Valve response time ※30%→100%: approx.0.3 sec, From setpoint to setpoint: approx.1 sec

Setpoint input ※4

4 – 20 mA DC: input resistance 180 Ω

Flow data output

4 – 20 mA DC: loaded resistance 300 ΩControl activation

Control ON / OFF (non-voltage A contact)

250 – 5000

FLC-US40

Orifice size

Required differential pressure

50 – 1000(Min. : 2 mL/min)

Repeatability

Control pressure range

25 – 500±1% R.D. ※10 – 100% F.S.

Flow control accuracy
Stability ※2G1050 – 1000

フローコントローラ

Base model0.15 –0.3MPa(G)
0.15MPa※ Control is activated (Control ON) when the contacts are closed. (Operated with the contacts closed normally)

Valve forced full-open. (non-voltage A contact)

EXT1 Input※ Valve is forcedly full-open when the contacts are closed. Have the contacts open after use. (Operated with the contacts opened, normally)
Zero point adjustment or totalized flow volume reset. (non-voltage A contact)

EXT2 Input ※4※ Reset is made when the contacts are closed. Have the contacts open after use. (Operated with the contacts opened, normally)
NPN open collector output(EX2 Error output) ※5

Output applied voltage: ≦ 35 V DC

Reset switch ※6

Zero-point adjustment, totalized flow volume reset or button operation disabled.

Piano Dip switch

Communication settings. (Baud rate, device address)

Address switch

Device address settings.

Sink current: ≦ 100 mA (Vol=1.3 V)

Power source
Dimensions

24 V DC ± 10% (Current consumption: while in operation: approx.0.3A)
Body

170 mm×40 mm×142 mm ※Tube, cable and protrusions excluded.

Cable

I/O cable: φ6.9 mm × 2000 mm, Communication cable: φ4.8 mm × 2000 mm

WeightApprox.1,000g ※ Cable excluded.

※1 Flow control accuracy doesnʼt include the flow accuracy of the flow sensor.
※2 Stability differs according to stability, etc. of supply pressure.
※3 100% of valve position is set at Factory.
※4 Some parameter settings are required at Factory. Not available with "E" selected.
※5 Available if "E" at Error output is selected. Type of error is selectable, so contact us for more detail.
Zero-point adjustment or totalized flow volume reset is not usable. Use Reset switch or operate via RS-485.
※6 Some parameter settings are required at Factory.

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System diagram

Flow controller

FLC-US
FluidIN

Fluid (controlled)

Flow control valve

Flow sensor

OUT

Circuit board
Flow data
Setpoint input ※1(Target flow rate: 4 – 20 mADC)

Flow data output(4 – 20 mADC)

EXT1(Valve forced full-open)Your system
I/O

EXT2 ※2(Zero-point adjustment or totalized flow volume)
Flow control activation(Control ON / OFF)EX2 Error output ※3(NPN open collector)

Power source(24 V DC)

F.G.

Serial communication ※1(Modbus RTU, 57600bps)

PC Software for maintenanceYour system
I/O

Circuit board

FLC-US software

・Parameter settings
・Monitoring (flow rate, valve position, input signals, etc.)※1: The setpoint input (target flow rate setting) can be made from "analog input signal" or "serial communication". This setting is made at Factory, so inform us of which input you prefer to use when ordering.
With the serial communication (FLC-US software, etc.), you are allowed to change your settings after purchase.
※2: EXT2 input is selectable between "zero-point adjustment" and "totalized flow volume reset". This setting is made at Factory, so inform us of which input you prefer to use when ordering.
With the serial communication (FLC-US software, etc.), you are allowed to change your settings after purchase.With "E" selected, zero-point adjustment or totalized flow volume rest is not available.
Use Reset switch or operate via RS-485.
※3: NPN open collector output, which is available if "E" at Error output is selected. You can select from available errors on your own via serial communication such as using the exclusive Software made for FLC-US40.

Cables and wires

I/O Cable (AWG26×12C, OD φ6.9)

Ground wire: AWG22(70)(70)
Ground wire: AWG22

White

24 V DC: Power source (+)

Black0 V DC: Power source (COM)Brown

SET FLOW (+): Setpoint input (4 – 20 mADC)

Brown / BlackSET FLOW (COM): Setpoint input (COM)

Yellow

CONTROL INPUT (+): Flow control input (+)

Yellow / BlackCONTROL INPUT (COM): Flow control input (COM)

PurpleEXT 1 (+): Valve forced full-open

Gray

EXT 2 (+): Zero-point adjustment / Totalized flow volume reset ※Purple / Black

EXT (COM): EXT (COM)Orange

FLOW OUTPUT (+): Flow output (4 – 20 mADC)

Orange / BlackFLOW OUTPUT (COM): Flow output (COM)Green / Black

F.G.: Frame ground

Communication cable (AWG26×3C, OD φ4.8)
Blue

TRx - : RS-485 communicationRed

TRx + : RS-485 communicationGreen

TRx COM: RS-485 communication※ Changeable to Error output

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薬液・純水用Outline drawing

Reset switch (Zero-point adjustment or totalized flow volume reset)⑦

Address switch

Serial number

フローコントローラ

Piano Dip switch
HR30 Series connector plug madeby HRS (12-Pin)

Model number⑥
Under switch cover④PFA TUBE
G08: 1/4” (φ6.35×φ4.35)
G10: 3/8” (φ9.53×φ6.33)⑤3⑧

Status LED

HR30 Series connector plug madeby HRS (6-Pin)

FLC-US40①142②81952③(70)140(70)Materials

2Communication connector

PPS etc.

3CapCR

4

Body case

PBT

5Label−6Switch cover

PPRemarks997

I/O connector cable−

Gray / 2 m

153

8Comm. connector cable−Black / 2 m

170

40

PPS etc.

26

I/O connector

5.5

Material

15.5Part nameNo.

Installation orientation

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