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0102030405
Digital Water Flow Switch – ANPF3W Series
Product Overview
High-precision ANPF3W digital water flow switch with dual/tri-color display, rotatable module, 20–350 L/min flow range, IP65 protection, and IO-Link compatibility for industrial automation and coolant system monitoring.
The ANPF3W Series is a high-precision digital flow switch designed for accurate monitoring of water or coolant flow in industrial systems. Combining compact modular design with flexible display options, it offers reliable performance while saving valuable installation space.
Application Spotlight
Ideal for industrial automation, cooling systems, water circuits, and production lines where precise flow monitoring and control are critical. Its modular, compact design makes it perfect for space-constrained installations and multi-station setups.
Technical Parameters
| If needed, please order according to the following models. | ||
| Optional | Model | Notes |
| Bracket | NZS-40-K | For ANPF3W704/720/504/520 |
| NZS-40-L | For ANPF3W740/540 | |
| NZS-40-M | For ANPF3W711/511 | |
| M8 with plug and cable | NZS-40-A | Wire length: 3m |
| Model(Note1) | ANPF3W704-03-□-M | ANPF3W720-04-□-M | ANPF3W740-06-□-M | ANPF3W711-10-□-M | ANPF3W721-14-□-M | ||
| Measuring fluid | Water and ethylene glycol aqueous solution(But viscosity3 mPa·s [3cP]the following | ||||||
| Detection method | Karman vortex street | ||||||
| Rated flow range(Note2) | 0.5-4L/min | 2-16L/min | 5-40L/min | 10-100L/min | 50-250L/min | ||
| Display flow range | 0.35-5.50 L/min | 1.7-22.0 L/min | 3.5-55.0L/min | 7-140L/min | 20-350L/min | ||
| Set flow range | 0.35-5.50 L/min | 1.7-22.0 L/min | 3.5-55.0L/min | 7-140L/min | 20-350L/min | ||
| Set minimum unit | 0.01L/min | 0.1L/min | 0.1L/min | 1L/min | 2L/min | ||
| Cumulative pulse conversion value(Pulse width=50ms) | 0.05L/pulse | 0.1L/pulse | 0.5L/pulse | 1L/pulse | 2L/pulse | ||
| Use fluid temperature | 0-90℃(Unfrozen and without condensation) | ||||||
| Display unit | Instantaneous flowL/minCumulative trafficL | ||||||
| accuracy | Display value:±3%FS;Simulated output:±3%FS | ||||||
| Repeatability | ±2%FS(Note3) | ||||||
| Temperature characteristics | ±5%FS (25℃ standard) | ||||||
| Operating pressure range | 0-1MPa | ||||||
| Pressure loss | At maximum flow45 kPaNo flow regulating valve) | At maximum flow60 kPaNo flow regulating valve) | |||||
| Cumulative traffic range(Note4) | 99999999.9L | 999999999L | |||||
| Every0.1L | Every0.5L | Every1L | |||||
| NPNorPNPOpen collector output | |||||||
| Switch output | Maximum load voltage | 80mA | |||||
| Maximum applied voltage | DC28V | ||||||
| Internal voltage drop | NPN: 1Vthe following(Load current80mA) PNP: 1.5Vthe following(Load current80mAhour) | ||||||
| Response time(Note5) | 0.5s/1s/2s | ||||||
| Output protection | Short circuit protection | ||||||
| Output mode | Flow | Select from hysteresis mode, upper and lower limit comparison mode, cumulative output mode, and cumulative pulse output mode. | |||||
| Temperature | Hysteresis mode, upper and lower limit comparison mode selection | ||||||
| Analog output | Response time(Note6) | 0.5s/1s/2s (Linked with switch output) | |||||
| Voltage output | Output simulation:1-5VOutput impedance:1K | ||||||
| Current output | Output current:4-20mALoad impedance: DC12Vhour300Ω, DC24Vhour600Ω | ||||||
| Hysteresis | variable | ||||||
| External input | No voltage input:0.4Vthe following(With or without contacts),enter30msabove | ||||||
| Display method | 2Screen display(Home screen4Bit7part2Red is displayed/Green, secondary screen6Bit11Duan Bai) | ||||||
| Action indicator light | Output1Output2:orange | ||||||
| Power supply voltage | DC12-24V±10% | ||||||
| Consume current | 50mAthe following | ||||||
| Environmental resistance | Protection level | IP65 | |||||
| Operating temperature range | 0-50℃(Not frozen, not condensed) | ||||||
| Operating temperature range | During action, during save:35-85%RH.No condensation) | ||||||
| Withstand voltage(Note7) | AC1000V1minutesThere are external terminals and housing | ||||||
| Insulation resistance | 50MΩabove(DC500VMegohmmeter )All external terminals and housing | ||||||
| Material of wetted parts | PPS.SUS304.FKM.SCS13 | ||||||
| Grease-free specifications | |||||||
| Note 1) Specifications with temperature sensor and analog output with throttling and PNP are also available; please contact our company. Note 2) When the actual flow rate is less than the minimum display range, the display will show "0.00", "0.0", or "0". Note 3) When the response time of the switch input is selected as 0.5s, the repeatability is ±3%. Note 4) This is cleared when the power is off. Memory function is selectable. (Selectable interval: 2 minutes or 5 minutes) When selecting a 5-minute interval, 5 minutes x 1 million times = 5 million minutes = approximately 9.5). Note 5) This is the response time relative to when the switch output reaches 90% of the set value. (7s for temperature sensor output.) Note 6) This is the response time relative to when the switch output reaches 90%. (7s for analog temperature sensor output.) Note 7) For modern temperature sensors, the withstand voltage is 250VAC. |
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| *:□ - Represents output specifications | |||
| □ | OUT1 | OUT2 | Remark |
| A | NPN | NPN | - |
| C | NPN | Analog voltage 1-5V output | |
| D | NPN | Analog current 4-20mA output | |
| AT | NPN | NPN* | With temperature sensor |
| CT | NPN | Analog voltage 1-5V output* | |
| DT | NPN | Analog current 4-20mA output* | |
| *OUT2 can be set by a flow or temperature sensor; a version with a throttle valve and PNP switch is also available. | |||
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Can the ANPF3W replace existing mechanical or older digital flow switches?
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Are mounting brackets and cables included or optional?
Mounting brackets and M8 connector cables are optional accessories and can be selected based on your installation method and layout.