3/4" Digital Flow Switch for Water

$395.59

Favorable price digital water flow switch for sale, 3/4 inch thread port size, with digital display for real time monitoring, ±2% accuracy, measuring water and ethylene glycol aqueous solution, fluid temperature 0~90℃. This water flow switch comes with water sensor, which is designed for flow sensing to transmit data to the mainboard, Selectable signal output PNP or NPN.

SKU: ATO-FLOW-W34

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Delivery date: 6-12 days

Overview

Lightweight water flow switch with digital display can monitor data in real time. It is designed with water sensor, PNP or NPN signal output for transmitting data to the mainboard.

Specification

Model		ATO-NPF3W74006
Port Size Rc (PT)		3/4 inch
Applicable Fluid		Water, Ethylene glycol aqueous solution (with viscosity of 3 MPa·s [3 cP] or less)
Detection Method		Karman vortex
Rated Flow Range		5~40L/min
Display Flow Range		3.5~55.0L/min
Set Flow Range		3.5~55.0L/min
Smallest Settable Increment		0.1L/min
Conversion of Accumulated Pulse		0.05L/pulse
Fluid Temperature		0 to 90°C (No freezing or condensation)
Display Unit		Instantaneous flow: L/min, Accumulated Flow: L
Accuracy		Display value: ±3% F.S. Analog output: ±3% F.S.
Repeatability		±2% F.S
Temperature Characteristics		±5% F.S. (25°C standard)
Operating Pressure Range		0~1MPa
Proof Pressure		45kPa or less at the maximum flow
Accumulated Flow Range		99999999.9L
		By 1L
Switch Output	/	NPN or PNP
	Max. Load Current	80mA
	Max. Applied Voltage	DC28V
	Internal Voltage Drop	NPN: 1 V or less (at load current of 80 mA) PNP: 1.5 V or less (at load current of 80 mA)
	Response Time	0.5s/ 1s/ 2s
	Output Protection	Short-circuit protection
Analog Output	Voltage Output	Voltage output: 1 to 5 V Output impedance: 1 kΩ
	Current Output	Output current: 4 to 20 mA Max. load impedance: 300 Ω for 12 VDC, 600 Ω for 24 VDC
	Response Time	0.5s/ 1s/ 2s (linked with the switch output)
Hysteresis		Variable
External Input		Voltage free input: 0.4 V 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) Display values updated 5 times per second
Indicator Light		Output 1, Output 2: Orange
Power Supply Voltage		DC12~24V±10%
Current Consumption		Below 50mA
Environment	Enclosure	IP65
	Operating Temperature Range	0 to 50°C (No freezing or condensation)
	Operating Humidity Range	Operation, storage: 35 to 85% R.H. (No condensation)
	Withstand Voltage	1000 VAC for 1 minute between terminals and housing
	Insulation Resistance	50 MΩ or more (500 VDC measured via megohmmeter) between terminals and housing
Standards and Regulations		CE, UL(CSA), RoHS
Wetted Parts Material		PPS. SUS304. FKM. SCS13, Non-grease
Weight		1kg

Flow Rate Diagram

Voltage Output: A: 1V, B: 1.5V, C: 5V
Current Output: A: 4mA, B: 6mA, C: 20mA

Flow rate diagram of digital flow switch for water

Pin Number & Wire Color

Wire color of digital flow switch for water

Pin Number	Content	Wire Color
1	DC (+)	Brown
2	OUT2	White
3	DC (-)	Blue
4	OUT1	Black

Body Dimensions (Unit: mm)

Dimensions of digital water flow switch

Basic Dimensions
A	AA	B	D	E	F	G	H	J	K	L	N	P
98	71	38	68	48.6	19.2	32	28	49	35	28	16.8	φ2.7 deep 12

Bracket Dimensions
S	T	U	V	W	WX	Y	Z
34	30	42	48	58	4.5	5	1.5

M8 Lead Wire Dimensions (Unit: mm)

Dimensions of digital flow switch lead wire

Tips: What are the functions of water flow switches?

Detect whether the liquid in the pipeline flows and whether the flow meets the requirements, and at the same time, the on-off state of a signal is provided by the switch electrical contact.
The equipment system judges the working status of the pipeline system by detecting whether there is a signal or control current passing through this switch, and gives the corresponding control or operation mode or measures.
It is used to detect the flow of liquid in the water circulation pipe network system of the central air conditioner, the automatic sprinkler fire extinguishing system of the fire protection system, and a certain type of liquid circulation cooling system pipeline.

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