Datasheet

ManualsBrandsSMC ManualsFlow SensorsDigital Flow Switch, 10 ... 100L/min, 10bar

How to Order

PF3W 7 04 03 AT M

Type

Remote sensor unit

Integrated display

Integrated

display

PF3W 5 04 03 1T

Remote

sensor unit

Thread type

—

NPT

0.5 to 4

/min

2 to 16

/min

5 to 40

/min

10 to 100

/min

Rated flow range (Flow range)

Symbol Rated flow range

Bracket (Option)

None

Bracket

—

Made to Order

(Refer to page 6.)

Seal material EPDM

X109

Output specification/

Temperature sensor

Symbol

OUT1

Flow rate

Flow rate Temperature

—

NPN

PNP

Analogue 1 to 5 V

Analogue 4 to 20 mA

Analogue 1 to 5 V

Analogue 4 to 20 mA

NPN

PNP

Analogue 1 to 5 V

Analogue 4 to 20 mA

Analogue 1 to 5 V

Analogue 4 to 20 mA

External input

Note 1)

External input

Note 1)

(NPN)

(PNP)

(Analogue 1 to 5 V)

(Analogue 4 to 20 mA)

(Analogue 1 to 5 V)

(Analogue 4 to 20 mA)

NPN

PNP

NPN

PNP

NPN

PNP

NPN

PNP

NPN

PNP

100

/min type is not available with flow

adjustment valve.

None

Yes

—

Flow adjustment valve

Symbol

Rated flow rate

With/without flow

adjustment valve



—

Port size

Symbol

Port

size

Rated flow range



—



—



—



3/8

1/2

3/4

Calibration certificate

(Only flow sensor)

None

With calibration certificate

—

∗

The certificate is written in both English and

Japanese. Integrated display type with

temperature sensor can only display flow rate.

Options/Part No.

When optional parts are required separately, use the following part numbers to place an order.

Part no. Qty.

Note

Description

ZS-40-K

ZS-40-L

ZS-40-M

ZS-40-A

For PF3W704/720/504/520

For

PF3W740/540

For

PF3W711/511

Bracket

Note)

Lead wire with M8 connector

Note 1) External input:

The accumulated

value, peak

value, and

bottom value can

be reset.

Note 2) For units with

temperature

sensor, OUT2

can be set as

either tempera-

ture output or

flow rate output.

Setting when

shipped is for

temperature

output.

Note) For units with flow adjustment valve, 2 brackets are required.

With 4 tapping screws (3 x 8)

With 4 tapping screws (4 x 10)

Lead wire length (3 m)

Integrated display/Unit specification

Symbol

Temperature

Instantaneous

flow rate

Accumulated

flow

°C

°F

/min

gal/min

/min

gal

Remote sensor unit/

Unit printed on label

Symbol Temperature

Instantaneous

flow rate

—

Accumulated

flow

°C

°F

/min

gal/min

/min

gal

Note) G, F, J: Made to Order

Reference: 1 [

/min] 0.2642 [gal

/min]

1 [gal

/min

] 3.785 [

/min]

°F = 9/5°C + 32

Note) G, F, J: Made to Order

Reference: 1 [

/min] 0.2642 [gal

/min]

1 [gal

/min

] 3.785 [

/min]

°F = 9/5°C + 32

OUT2

Temperature

sensor

None

With

temperature

sensor

Note 2)

Integrated display

Output specification/Temperature sensor

Symbol

OUT1

Flow rate

OUT2

Temperature

Temperature sensor

—

Analogue 1 to 5 V

With temperature sensor

None

Analogue 1 to 5 V

Analogue 4 to 20 mA

Analogue 1 to 5 V

Remote sensor unit

Series

PF3W

3-colour display

Digital Flow Switch for Water

Lead wire

With lead wire with M8

connector

(3 m)

—

Without lead wire

with M8

connector

RoHS

Specifications (Integrated Display)

Temperature Sensor Specifications

Note 1) The rated temperature range is for the temperature sensor alone.

The fluid temperature range specification of the flow switch as a whole

is 0 to 90°C.

Note 2) The response time is for the temperature sensor alone.

The OUT2 can be selected from the output for temperature or flow

rate by button operation.

Note 1) Refer to “Measurable Range for Ethylene Glycol Aqueous Solution” on page 4. Measurement can be performed with a fluid that does not corrode wetted parts

and has viscosity of 3 mPa·s [3 cP] or less.

Note 2) When 0.5 s is selected for the response time of the switch output, the repeatability becomes ±3% F.S.

Note 3) Operating pressure range and proof pressure change according to the fluid temperature. Refer to page 3.

Note 4) Cleared by turning off the power supply. It is possible to select the function to memorise it. (Every 2 or 5 minutes) When 5 minutes memorising is selected, the

lifetime of the memory element (electronic part) is 1 million times (5 minutes x 1 million times = 5 million minutes = Approx. 9.5 years for 24 hour energizing).

Calculate the lifetime based on your operating conditions before using the memorising function, and do not exceed it.

Note 5) The response time when the set value is 90% in relation to the step input. (The response time is 7 s when it is output by the temperature sensor.)

Note 6)

The response time until the set value reaches 90% in relation to the step input. (The response time is 7 s when it is analogue output by the temperature sensor.)

Note 7) When the temperature sensor is used, it will be 250 VAC.

Note 8) Refer to “Wetted Parts Construction” on page 7 for details.

Model

PF3W704 PF3W720 PF3W711PF3W740

Applicable fluid

Detection method

Rated flow range

Display flow range

Set flow range

Minimum setting unit

Conversion of accumulated pulse (Pulse width: 50 ms)

Fluid temperature

Display unit

Accuracy

Repeatability

Temperature characteristics

Operating pressure range

Note 3)

Proof pressure

Note 3)

Pressure loss

Accumulated flow range

Note 4)

Switch output

Hysteresis

External input

Display method

Indicator light

Power supply voltage

Current consumption

Environment

Standards and regulations

Wetted parts material

Note 8)

Piping port size

Maximum load current

Maximum applied voltage

Internal voltage drop

Response time

Note 2), 5)

Output protection

Output

mode

Response time

Note 6)

Voltage output

Current output

Enclosure

Operating temperature range

Operating humidity range

Withstand voltage

Note 7)

Insulation resistance

Without temperature sensor/Without flow adjustment valve

With temperature sensor/Without flow adjustment valve

Without temperature sensor/With flow adjustment valve

With temperature sensor/With flow adjustment valve

With lead wire with connector

Water and ethylene glycol aqueous solution (with viscosity of 3 mPa·s [3 cP] or less)

Note 1)

Karman vortex

0.1

l/min

0 to 90°C (with no freezing and condensation)

Instantaneous flow rate:

l/min, Accumulated flow: l

Display value: ±3% F.S. Analogue output: ±3% F.S.

±2% F.S.

Note 2)

±5% F.S. (25°C reference)

0 to 1 MPa

1.5 MPa

45 kPa at the maximum flow (without flow adjustment valve)

NPN or PNP open collector output

80 mA

28 VDC

NPN: 1 V or less (at 80 mA load current) PNP: 1.5 V or less (at 80 mA load current)

0.5s / 1s / 2s

Short circuit protection

Select from hysteresis mode, window comparator mode, accumulated output mode, or accumulated pulse output mode.

Select from hysteresis mode or window comparator mode.

0.5s / 1s / 2s (linked with the switch output)

Voltage output: 1 to 5 V Output impedance: 1 kΩ

Output current: 4 to 20 mA Max. load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC

Variable

Voltage free input: 0.4 V or less (Reed or Solid state), input for 30 ms or longer

2-screen display (Main screen: 4-digit, 7-segment, 2-colour, Red/Green Sub screen: 6-digit, 11-segment, White) Display values updated 5 times per second

Output 1, Output 2: Orange

12 to 24 VDC ±10%

50 mA or less

IP65

0 to 50°C (with no freezing and condensation)

Operation, Storage: 35 to 85% R.H. (with no condensation)

1000 VAC for 1 minute between whole live part and enclosure

50 MΩ or more (500 VDC mega metre) between whole live part and enclosure

CE marking, UL (CSA), RoHS

PPS, Stainless steel 304, FKM, SCS13

Non-grease

2 to 16

l/min

1.7 to 22.0

l/min

0.1

/pulse

5 to 40

l/min

3.5 to 55.0

l/min

0.5

/pulse

10 to 100

l/min

7 to 140

l/min

/pulse

0.5 to 4

l/min

0.35 to 5.50

l/min

0.01

l/min

0.05

/pulse

3/8, 1/2

260 g

335 g

360 g

435 g

1/2, 3/4

410 g

530 g

610 g

730 g

3/4, 1

720 g

860 g

—

3/8

210 g

285 g

310 g

385 g

By 0.1

l By 0.5 l

99999999.9 l

999999999 l

By 1 l

The output related to the temperature sensor is OUT2 only.

Flow rate detecting circuit

OUT1 Switch output

OUT2 Switch output

Analogue output

Main circuit

Temperature detecting circuit

Brown DC (+)

Black OUT1

White OUT2

Blue DC (–)

Flow rate

Temperature

+85 g

0.35 to 5.50

l/min

(Flow under 0.35 l/min is displayed as “0.00”)

1.7 to 22.0 l/min

(Flow under 1.7 l/min is displayed as “0.0”)

3.5 to 55.0 l/min

(Flow under 3.5 l/min is displayed as “0.0”)

7 to 140 l/min

(Flow under 7 l/min is displayed as “0”)

Weight

Analogue output

Rated temperature range

Setting/Display temperature range

Minimum setting unit

Display unit

Display accuracy

Analogue output accuracy

Response time

Ambient temperature characteristics

0 to 100°C

Note 1)

–10 to 110°C

1°C

°C

±2°C

±3% F.S.

7 s

Note 2)

±5% F.S.

3-Colour Display Digital Flow Switch for PVC Piping

PF3W

3-Colour Display Digital Flow Monitor for Water

PF3W3

3-Colour Display Digital Flow Switch for Water

PF3W

Function

Details

Digital Flow Switch for Water

Series

PF3W

3-colour display