Features

Flow ratio^＊ 100:1　A wide range of flow measurement is possible with 1 product.

* he flow ratio is 20:1 for the existing model (PF2A7□H/Large flow type).

• Improved resistance to moisture and foreign matter

  The bypass construction reduces the moist air or foreign matter in contact with the sensor, reducing sensor accuracy deterioration and damage.

  

• Through bore construction (Excludes the modular type)

  ?Pressure loss: 75% reduction＊ (20 kPa → 5 kPa)

  * Compared with the existing model (PF2A7□H/Large flow

  ?Maintenance-free fluid passage

  

3-color/2-screen display

* 2-screen display: 2-row display of main screen and sub screen

Display rotates 90° and can be reversed.

The display can be rotated in increments of 90° according to the installation. The display can be reversed for easy operation.

• Smallest settable increment: 2 L/min

  * For the PF3A703H
  * 5 L/min for the existing model (PF2A703H/Large flow type)

• Grease-free

Functions

• Output operation
• External input function
• Reversible display mode
• Simple setting mode
• Forced output function
• Zero cut-off function
• Display color
• Accumulated value hold
• Selection of the display on the sub screen
• Reference condition
• Peak/Bottom value display
• Response time (Digital filter)
• Display OFF mode
• Analog output free range function
• FUNC output switching function
  (Analog output ? External input)
• Setting of a security code
• Key-lock function
• Error display function
• Reset to the default settings
• Zero-clear function
• Display fine adjustment function
• Selectable analog output function
• Measurement display setting

Application

Flow control of equipment, main line, and branch line

Select a digital flow switch to increase energy savings!

Flow control is necessary for promoting energy saving in any application.
Saving energy starts from numerical control of the flow consumption of equipment and lines and clarification of the purpose and effect.

Energy Saving Program

Click here for details on the energy saving program.

IO-Link Compatible PF3A□H-□□-L□-□□

3-Color Display Modular Type Digital Flow Switch PF3A701H/702H(-L) Series

4-Screen Display Modular Type Digital Flow Switch with Pressure/Temperature Sensor PF3A801H/802H-L Series

3-Screen Display Digital Flow Monitor PFG300 Series

?Allows for the monitoring of remote lines

?Visualization of settings

The sub screen (label) shows the item to be set.

?Easy screen switching

It is possible to change the settings while checking the measured value.

?Simple 3-step setting

設定値（P_1）When the S button is pressed and the set value (P_1) is being displayed, the set value (threshold value) can be set. When the S button is pressed and the hysteresis (H_1) is being displayed, the hysteresis value can be set.

• >?NPN/PNP switch function

  The number of stock items can be reduced.

  

  ?Analog output of 0 to 10 V is also available.

  

• ?Input range selection (for Pressure/Flow rate)

  The displayed value to the sensor input can be set as required. (Voltage input: 1 to 5 V/Current input: 4 to 20 mA)
  Pressure switch/Flow switch can be displayed.

  

• ?Convenient functions

  

• ?Compact & Lightweight

  

Output operation

• Output operation
• Forced output function
• Analog output free range function
• Simple setting mode
• Accumulated value hold
• Display color
• Peak/Bottom value display
• Error display function
• Delay time setting
• Setting of a security code
• Copy function
• Digital filter setting
• Key-lock function
• Selection of power saving mode
• FUNC output switching function
• Reset to the default settings
• Display with zero cut-off setting
• Selectable analog output function
• External input function
• Selection of the display on the sub screen

?Mounting

The bracket configuration allows for mounting in four orientations.

Flow Switch Flow Rate Variations

Flow Switch Variations / Basic Performance Table