PF3W Series 3 Color Display Digital Flow Switch for Water
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- Supplier: Ningbo Vpc Pneumatic Co. Ltd.
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Product Overview
Description
PF3W Series 3 Color Display Digital Flow Switch for Water
1. PF3W is a digital flow sensor that constantly monitors water or coolant flow.2. PF3W refreshes the design and operating performance of the legacy PF2W model. The body is up to 40% smaller in volume and requires shorter straight piping for improved installation flexibility. The upgraded 2-screen, 3-color numerical display rotates in both CW and CCW directions, offering improved visibility in a range of orientations.
3. Two outputs are available, including two switch signals, or a switch and analog signal.
4. Options include a mounting bracket, flow adjustment valve, and temperature sensor to monitor flow and temperature simultaneously.
5. PF3W is grease-free, IP65 rated, and C-UL-US, CE and RoHS compliant.
3. Two outputs are available, including two switch signals, or a switch and analog signal.
4. Options include a mounting bracket, flow adjustment valve, and temperature sensor to monitor flow and temperature simultaneously.
5. PF3W is grease-free, IP65 rated, and C-UL-US, CE and RoHS compliant.
Product Feature
1. 3-color/2-screen display.
2. Integrated display type, Separate monitor type, and PVC piping type.
3. Reduced required piping space.
4. Rotatable display: Counterclockwise 90°, Clockwise 225°. Display can be rotated in increments of 45° to suit the installation conditions.
5. Easy operation, improved visibility. New model PF3W721-14- -M. (Flow rate set from 20-350L/min).
2. Integrated display type, Separate monitor type, and PVC piping type.
3. Reduced required piping space.
4. Rotatable display: Counterclockwise 90°, Clockwise 225°. Display can be rotated in increments of 45° to suit the installation conditions.
5. Easy operation, improved visibility. New model PF3W721-14- -M. (Flow rate set from 20-350L/min).
PRODUCT SPECIFICATION
Model | PF3W704 | PF3W720 | PF3W740 | PF3W711 | PF2A721 | ||||||
Working medium | Water and ethylene glycol aqueous solution (with viscosity of 3MPa·s [3 cP] or less) | ||||||||||
Detection type | Karman vortex | ||||||||||
Rated flow range | 0.5 to 4 L/min | 2 to 16 L/min | 5 to 40 L/min | 10 to 100 L/min | 50 to 250 L/min | ||||||
Display flow range*1) | 0.35 to 5.5 L/min | 1.7 to 22 L/min | 3.5 to 55 L/min | 7 to 140 L/min | 20 to 350 L/min | ||||||
Set flow range | 0.35 to 5.5 L/min | 1.7 to 22 L/min | 3.5 to 55 L/min | 7 to 140 L/min | 20 to 350 L/min | ||||||
Smallest settable increment | 0.01L/min | 0.1L/min | 1L/min | 2L/min | |||||||
Conversion of accumulated pulse (Pulse width: 50ms) | 0.05L/pulse | 0.1L/pulse | 0.05L/pulse | 1L/pulse | 2L/pulse | ||||||
Fluid temperature (No freezing or condensation) | 0 to 90°C | 0 to 70°C | |||||||||
Display unit | Instantaneous flow: L/min, Accumulated flow: L | ||||||||||
Accuracy | Display value: ±3% F.S. Analog output: ±3% F.S. | ||||||||||
Repeatability | ±2.0% F.S.*2) | ||||||||||
Temperature characteristics | ±5.0% F.S. (25℃ reference) | ||||||||||
Operating pressure | 0 to 1MPa | ||||||||||
Proof pressure | 1.5MPa | ||||||||||
Pressure loss | 20kPa (at maximum flow rate) | ||||||||||
Pressure loss (Without flow adjustment valve) | 45 kPa or less at the max. flow | 60 kPa or less at the max. flow | |||||||||
Accumulated flow range*3) | 0 to 9,999,999,999L | 999,999,999L | |||||||||
By 0.1L | By 0.5L | By 1L | |||||||||
Pressure characteristics | ±1.5% F.S. (0.1 to 1.5 MPa, 0.7 MPa reference) | ||||||||||
Switch output | Nil | NPN open collector output | |||||||||
Max. load current | 80mA | ||||||||||
Max. applied voltage | DC 28V | ||||||||||
Internal voltage drop | NPN: 1V or less, PNP: 1.5V or less (at load current of 80 mA) | ||||||||||
Response time*2,4) | 0.5s/1s/2s | ||||||||||
Output protection | Short-circuit protection | ||||||||||
Flow rate output mode | Select from Hysteresis, Window comparator, Accumulated output, or Accumulated pulse output modes | ||||||||||
Temperature output mode | Select from Hysteresis mode or Window comparator mode | ||||||||||
Analog output | Response time*5） | 0.5s/1s/2s (linked with the switch output) | |||||||||
Voltage output | Output voltage: 1 to 5V Output impedance: 1 kΩ | ||||||||||
Current output | Output current: 4 to 20 mA Max. load impedance: 300 Ω for DC 12V, 600 Ω for DC 24V | ||||||||||
Hysteresis | Variable | ||||||||||
External input | Voltage free input: 0.4V or less (Reed or Solid state), input for 30ms or longer | ||||||||||
Display method | 2-screen display (Main screen: 4-digit, 7-segment, 2-color, Red/Green Sub screen: 6-digit, 11-segment, White) | ||||||||||
Indicator light | Output 1, Output 2: Orange | ||||||||||
Power supply voltage | DC12 to 24 V ±10% | ||||||||||
Current consumption | 50 mA or less | ||||||||||
Environment | Enclosure | IP65 | |||||||||
Working temperature | 0 to 50℃ (with no freezing and condensation) | ||||||||||
Working humidity | Operation, Storage: 35 to 85% R.H. (No condensation) | ||||||||||
Withstand voltage*6) | AC 1000V for 1 minute between terminals and housing | ||||||||||
Insulation resistance | 50 MΩ or more (DC 500V measured via megohmmeter) between terminals and housing | ||||||||||
Standards and regulations | CE, RoHS | ||||||||||
Wetted parts material | PPS, FKM, SCS13, SUS304 | ||||||||||
Non-grease | |||||||||||
Piping port size*7） | 3/8 | 3/8, 1/2 | 1/2, 3/4 | 3/4, 1 | 1 1/4, 1 1/2 | ||||||
*1) When the actual flow rate is less than the minimum display flow range, the display will show "0.00", "0.0" or "0 ".
*2) If 0.5s is selected for the response time of the switch output, the repeatability will be ±3% F.S.
*3) Cleared when the power supply is turned off. The hold function can be selected. (Intervals of 2 or 5 minutes can be selected.) If the 5-minute interval is selected, the life of the memory element (electronic parts) is limited to 1 million times. (If energized for 24 hours, life is calculated as 5 minutes × 1 million = 5 million minutes = about 9.5 years.) Therefore, if using the hold function, calculate the memory life for your operating conditions, and use within this life.
*4) The response time when the set value is 90% in relation to the step input (The response time is 7s when it is output by the temperature sensor.)
*5) The response time until the set value reaches 90% in relation to the step input (The response time is 7s when it is analog output by the temperature sensor.)
*6) When the temperature sensor is used, it will be AC 250V.
*7) When the piping diameter or piping passage is restricted, the specififications may not be satisfified.
*8) Products with tiny scratches, marks, or display color or brightness variations which do not affect the performance of the product are verified as conforming products.
*2) If 0.5s is selected for the response time of the switch output, the repeatability will be ±3% F.S.
*3) Cleared when the power supply is turned off. The hold function can be selected. (Intervals of 2 or 5 minutes can be selected.) If the 5-minute interval is selected, the life of the memory element (electronic parts) is limited to 1 million times. (If energized for 24 hours, life is calculated as 5 minutes × 1 million = 5 million minutes = about 9.5 years.) Therefore, if using the hold function, calculate the memory life for your operating conditions, and use within this life.
*4) The response time when the set value is 90% in relation to the step input (The response time is 7s when it is output by the temperature sensor.)
*5) The response time until the set value reaches 90% in relation to the step input (The response time is 7s when it is analog output by the temperature sensor.)
*6) When the temperature sensor is used, it will be AC 250V.
*7) When the piping diameter or piping passage is restricted, the specififications may not be satisfified.
*8) Products with tiny scratches, marks, or display color or brightness variations which do not affect the performance of the product are verified as conforming products.
Flow Rate/Analog output
When only optional parts are required, order with the part numbers listed below.
Description | Part NO. | Qty. | Note | |||
Bracket* | ZS-40-K | 1 | For PF3W704/720 | With 4 tapping screws (3×8) | ||
ZS-40-L | 1 | For PF3W740 | With 4 tapping screws (3×8) | |||
ZS-40-M | 1 | For PF3W711 | With 4 tapping screws (4×10) | |||
Lead wire with M8 connector | ZS-40-A | Lead wire length: 3m | ||||
* For units with flflow adjustment valve, 2 brackets are required.
Flow Rate/Analog Output
(PF3W704/720/740)
Symbol | A | B | C |
Voltage output | 1V | 1.5V | 5V |
Current output | 4mA | 6mA | 20mA |
(PF3W711)
Symbol | A | B | C |
Voltage output | 1V | 1.4V | 5V |
Current output | 4mA | 5.6mA | 20mA |
(PF3W721)
Symbol | A | B | C |
Voltage output | 1V | 1.8V | 5V |
Current output | 4mA | 7.2mA | 20mA |
Model | Rated flow [L/min] | ||
Mini. | Max. | ||
PF3W704 | 0.5 | 4 | |
PF3W720 | 2 | 16 | |
PF3W740 | 5 | 40 | |
PF3W711 | 10 | 100 | |
PF3W721 | 30 | 250 | |
How to order
Ording Code PF3W Series 3-Color Display Digital Flow Switch for Water
PF3W7① 04② - □③ 03④ - AT⑤ □⑥ - M⑦ □⑧
①→ Type | 7: Integrated display | |||||||||||
②→ Flow rate range | ||||||||||||
Symbol | 4 | 20 | 40 | 11 | 21 | |||||||
Rated flow rate | 0.5 to 4 L/min | 2 to 16 L/min | 5 to 40 L/min | 10 to 100 L/min | 50 to 250L/min (With metal piping) | 50 to 250L/min (With PVC piping) | ||||||
③→ Thread type | ||||||||||||
Nil: Rc | N: NPT | F: G | ||||||||||
④→ Port size | ||||||||||||
Symbol | Port size | Rated flow rate | ||||||||||
4 | 20 | 40 | 11 | 21 | ||||||||
03 | 3/8 | ● | ● | — | — | — | ||||||
04 | 1/2 | — | ● | ● | — | — | ||||||
05 | 3/4 | — | — | ● | ● | — | ||||||
10 | 1/1 | — | — | — | ● | — | ||||||
12 | 1 1/4 | — | — | — | — | ● | ||||||
14 | 1 1/2 | — | — | — | — | ● | ||||||
25 | 25A | — | — | — | ● | — | ||||||
30 | 30A | — | — | — | — | ● | ||||||
⑤→ Output specifications/Temperature sensor | ||||||||||||
Symbol | OUT1 | OUT2 | Temperature sensor | |||||||||
Flow rate | Flow rate | Temperature | ||||||||||
A | NPN | NPN | — | None | ||||||||
B | PNP | PNP | — | |||||||||
C | NPN | Analog 1 to 5V | — | |||||||||
D | NPN | Analog 4 to 20mA | — | |||||||||
E | PNP | Analog 1 to 5V | — | |||||||||
F | PNP | Analog 4 to 20mA | — | |||||||||
AT | NPN | (NPN)⇄NPN | With temperature sensor | |||||||||
CT | NPN | (Analog 1 to 5V)⇄Analog 1 to 5V | ||||||||||
DT | NPN | (Analog 4 to 20mA)⇄Analog 4 to 20mA | ||||||||||
⑥→ Lead wire (Option) | ||||||||||||
Nil: With lead wire with M8 connector (3 m) | ||||||||||||
N: Without lead wire with M8 connector | ||||||||||||
⑦→ Unit | ||||||||||||
Symbol | Instantaneous flow | Accumulated flow | Temperature | |||||||||
M | L/min | L | ℃ | |||||||||
⑧→ Bracket | ||||||||||||
Symbol | Bracket type | Rated flow rate | ||||||||||
4 | 20 | 40 | 11 | 21 | ||||||||
Nil | None | ● | ● | ● | ● | ● | ||||||
R | With bracket | ● | ● | ● | ● | — | ||||||
Order Example
2 NPN switch outputs, port size Rc3/8, with temperature sensor.
Model: NPF3W704-03-AT-M
2 NPN switch outputs, port size Rc3/8, with temperature sensor.
Model: NPF3W704-03-AT-M
Main Dimensions
CERTIFICATES
OUR CERTIFICATE
FAQ
Q1: What is your quality assurance？
A: We will inspect one by one before delivery. If the product is damaged in transit or has quality problems, you can choose to refund or resend the product, and the freight will be borne by us.
Q2: What are your terms of payment?
A: TT, we'll show you the photos of the products and packages before you pay the balance.
B: Paypal payment, Bank transfer, Alibaba Trade Assurance order also available.
Q3: How about the lead time?
A: Normally it will take 3-7 days for our routine products.
Q4: What is your sample policy?
A: Some free samples can be offered if you contact us.
Q5: How about the warranty?
A: 1 year warranty.
A: We will inspect one by one before delivery. If the product is damaged in transit or has quality problems, you can choose to refund or resend the product, and the freight will be borne by us.
Q2: What are your terms of payment?
A: TT, we'll show you the photos of the products and packages before you pay the balance.
B: Paypal payment, Bank transfer, Alibaba Trade Assurance order also available.
Q3: How about the lead time?
A: Normally it will take 3-7 days for our routine products.
Q4: What is your sample policy?
A: Some free samples can be offered if you contact us.
Q5: How about the warranty?
A: 1 year warranty.
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