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0102030405
ANPF2A7※※H series High-Precision Digital Flow Switch
Product Overview
The ANPF2A7※※H Series Digital Flow Switch is a high-performance electronic flow monitoring solution designed for large air flow applications. With a wide measurement range from 150 to 12,000 L/min (ANR), it enables precise flow detection, threshold setting, and real-time monitoring in pneumatic systems.
This all-in-one integrated design combines the sensor and digital display into a single compact unit, offering instant visualization of instantaneous flow or accumulated flow. Multiple output options—including switch output, analog output, and pulse output—ensure seamless integration with PLCs, controllers, and industrial automation systems.
Certified with CE and RoHS, the ANPF2A7※※H Series is ideal for factories seeking reliable, high-flow digital air monitoring with stable performance and fast response.
Technical Parameters
| Model | ANPF2A703H | ANPF2A706H | ANPF2A712H | ||
| Measuring Fluid | Dry Air, Nitrogen | ||||
| Detection Method | Hot | ||||
| Rated Flow Range (Note)1) | 150-3000L/Min | 300-6000/Min | 600-12000/Min | ||
| Set Minimum Unit (Note)1) | 5L/Min | 10L/Min | |||
| Display Units (Note)2) | Instantaneous Flow | L/Min, CFM | |||
| Cumulative Traffic | L,M³,M³×10³,T³,Ft³×10³,Ft³×106 | ||||
| Operating Pressure Range | 0.1~1.5MPa | ||||
| Pressure Resistance | 2.25MPa | ||||
| Pressure Loss | 20KPaAt Maximum Flow) | ||||
| Cumulative Traffic Range (Note)3) | 0~9,999,999,999L | ||||
| Accuracy (Note4) | ±1.5%FS (0.7MPa).,20℃) | ||||
| Repeatability | ±1.0%FS(0.7MPa),20℃)Analog Output±3.0%FS | ||||
| Pressure Characteristics | ±1.5%FS (0.1~1.5MPa,But With0.7MPaBased On) | ||||
| Temperature Characteristics | ±2.0%FS (0~50℃25℃ Standard) | ||||
| Output Specifications | Switch Output | NPNMaximum Open Collector Load Current:80MAMaximum Applied Voltage:30VInternal Voltage Drop:1Vthe Following(Load Current80MAhour) | |||
| (Note5) | PNPMaximum Open Collector Load Current80MAInternal Voltage Array:1.5Vthe Following(Load Current80MAhour) | ||||
| Cumulative Pulse Output (Note5) | NPNorPNPOpen Collector Each1Flow Rate Per Pulse: 100 L/Pulse, 10.0 Ft³/PulseEvery1PulseONtime:50 Msec/Pulse | ||||
| Analog Output (Note6) | Voltage OutputOutput Voltage1~5VMinimum Load Impedance:100KΩOutput Load Group Impedance1KΩ2) | ||||
| Current Output:4~20MAMaximum Load Impedance:250Ω | |||||
| Response Time | 1 Secthe Following | ||||
| Hysteresis | Hysteresis Mode Can Vary(Available From0Set Up)Upper And Lower Limit Comparison Mode: Fixed(0-3%FSconfigurable) | ||||
| Power Supply Voltage | DC24V±10% | ||||
| Consume Current | 150MAthe Following | ||||
| Environmental Resistance | Protection Level | Ip65 | |||
| Operating Temperature Range | 0~50℃(However, It Did Not Freeze Or Condense.) | ||||
| Withstand Voltage | Ac1000V 1MinuteExternal Terminals Together With The Housing | ||||
| Insulation Resistance | 50MΩ (DC500V)Megohmmeter)External Terminals Together With The Housing | ||||
| Vibration Resistance | 1000Vp-p Pulse width 1u5 Rise time 1ns | ||||
| Certification, Standards | CE,RoHS | ||||
| Quality | 1.1Kg (Excluding Wires) | 1Kg (Excluding Wires) | 2.0Kg (Excluding Wires) | ||
| Piping Diameter(Rc,NPT,G) | 1 1/22 | ||||
| Note 1) Flow Rate Is Displayed At A Reference State Of 0℃ And 101.3KPa, Which Can Be Converted To A Standard State (ANR) Of 20℃, 101.3KPa, And 65%RH. Note 2) For Applications With Unit Switching Function (For Applications Without Unit Switching Function, It Is Fixed In SI Units (L/Mn Or L, M³, M³×10³).) Note 3) Accumulated Flow Rate Is Cleared When The Power Is Off. The Accumulated Value Can Be Retained Without Being Cleared. In This Case, The Data Is Written To The EEPROM (Memory Element) At 4-Minute Intervals. The EEPROM Guarantees 1 Million Write Cycles (4 Minutes × 1 Million = 4 Million Minutes, 7.9 Years) Without Use. Note 4) High Airflow Type Corresponds To CE Marking. However, The Linearity Under Noise Is Below ±5%FS. Note 5) Switch Output And Accumulated Pulse Output Are Selected By Button (Key). Note 6) Analog Output Only Operates When Displaying The Flow Rate In The Direction Of The Current, And Does Not Operate When Displaying The Accumulated Flow Rate. |
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Flow characteristics(pressure loss)
Structure diagram of the fluid contact part
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Components | |||
| Serial Number | Name | Material | Notes | |
| 1 | Connector | Aluminum alloy | Anodizing treatment | |
| 2 | Seal | H·NBR | 一 | |
| 3 | Mesh | SUS | 一 | |
| 4 | Main Body | Aluminum alloy | Anodizing treatment | |
| 5 | Sensor | PPS | 一 | |
| 6 | Spacer | PBT | 一 | |
Application Spotlight
・Pneumatic automation systems
・Industrial compressed air monitoring
・Large-flow air supply lines
・Factory air consumption monitoring
・Semiconductor and electronics manufacturing
・Packaging and assembly equipment
・Automotive production lines
・Energy management and air leakage detection
・Nitrogen supply monitoring systems
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Pin serial number | Pin Name |
| 1 | DC(+) | |
| 2 | Analog output | |
| 3 | DC(-) | |
| 4 | OUT1 |
| The intake side must be designed with a straight pipe section with a diameter at least 8 times that of the piping. | ||||||||||
| Model | A | B | C | D | E | F | G | H | 1 | J |
| ANPF2A703H | 55 | 160 | 40 | 92 | 67 | 55 | Rc1,NPT1,G1 | 36 | M5×0.8 | 8 |
| ANPF2A706H | 65 | 180 | 45 | 104 | 79 | 65 | Rc11/2,NPT1/2,G1/2 | 46 | M6×1 | 9 |
| ANPF2A712H | 75 | 220 | 55 | 114 | 89 | 75 | Rc2,NPT2,G2 | 56 | M6×1 | 9 |
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Wire specifications | ||
| Conductor | Nominal cross-sectional area | AWG23 | |
| Outer diameter | About 0.7mm | ||
| Insulator | Material | Bridged vinyl chloride | |
| Outer diameter | About1.1mm | ||
| Color | Tea, white, blue, black | ||
| Outer sheath | Material | Oil-resistant vinyl chloride | |
| Finished product outer diameter | 4 | ||
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| Model | Minimum rated flow rate [L/min] | Maximum rated flow rate [L/min] | Model | Minimum rated flow rate [L/min] | Maximum rated flow rate [L/min] | |
| ANPF2A703H-□-28 ANPF2A703H-□-68 |
150 | 3000 | ANPF2A703H-□-29 ANPF2A703H-□-69 |
150 | 3000 | |
| ANPF2A706H-□-28 ANPF2A706H-□-68 |
300 | 6000 | ANPF2A706H-□-29 ANPF2A706H-□-69 |
300 | 6000 | |
| ANPF2A712H-□-28 ANPF2A712H-□-68 |
600 | 12000 | ANPF2A712H-□-29 ANPF2A712H-□-69 |
600 | 12000 | |
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Does the flow switch display real-time flow values?
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What is the accuracy of the ANPF2A7H digital flow switch?
The flow switch offers high accuracy up to ±1.5% F.S., with excellent repeatability and stable performance under typical industrial conditions. This ensures reliable flow monitoring even in large-flow applications.