Thermal Flow Switch with High Reliability for Measure Water or Liquid Flow

• IP Rating: IP67
• Certification: RoHS, ISO9001, CE
• Type: Flow Switch
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QFS-400 flow switch
• Media Type: Liquid
• Measure Media: Liquid Such as Water,Oil
• Measure Range: 1~150cm/S(Water),3~300cm/S(Oil)
• Excitation Voltage: 24VDC
• Output Signal: Relay Output,NPN Output,PNP Output
• Display: 6 LED Real Time Display
• Response Time: 2s(1~15s)
• Initialize Time: 8s(2~15s)
• Case Material: 304 Ss
• Material (Wetted Parts): 304 Ss
• Application: Hydropower, Pipeline Fluid Flow Monitoring
• Transport Package: Standard Exporting Inner Box and Outer Carton
• Specification: CE, RoHS, ISO
• Trademark: QYE
• Origin: Shaanxi, China
• HS Code: 9032810000
• Production Capacity: 5000PCS/Month
• Package Size: 80.00cm * 40.00cm * 40.00cm
• Package Gross Weight: 0.760kg

Product Description

Product Introduction:

QFS-400 flow switch is a kind of real-time monitoring measurement instrument that used for liquid flow in pipeline .It adopts full metal jacket, no moving parts, output continuously adjustable, compact structure. 6 LED real time display the state of flow and output. Convenient installation, suitable for various pipe diameters. Widely used in hydropower and other pipeline fluid flow monitoring industry.

Model: QFS-400 Flow Switch
Range:1~150cm/s(water),3~300cm/s(oil)
 
Feature:
 
High accuracy, good stability, long working life and high reliability
Small in size,convenient installation
6 LED real time display.

Dimensions :( unit: mm)



 
Electrical connection:
 

Code	Color	NO.
Excitation +	Brown	1
Excitation -	Blue	3
Relay: Normally open	White	2
Relay: Normally close	Gray	5
Relay:COM	Black	4
Transistor:NPN	Black	4
Transistor:PNP	Black	4

 
 

 

Technical Specifications:

 

Measuring media	dilute non-corrosive liquids(water,oil…)
Measuring ranges	bar	1~150cm/s(water),3~300cm/s(oil)
Excitation voltage	Vdc	24±20%VDC
Output signal	Relay	SPDT(≤250VAC/30VDC, 3A)
	Transistor	NPN,PNP(≤24±20%VDC,1.2A)
Response time	s	2s(1~15s)
Initialize time	s	8s(2~15s)
Medium temp.	ºC	-20~80ºC
Environment temp.	ºC	-10~+70
Storage temp.	ºC	-25~85ºC
Consumption current	mA	<90mA
Overload pressure	Mpa	10Mpa
Environment protection	IP rating	IP 67
Case Material	304 SS
Material (wetted parts)	304 SS

 
Installation:

1. The wetted parts need to immersed in fluid.Installation in small diameter pipeline to ensure that the probe can't contact with pipe's inner wall.
2 .When the fluid can not completely fill the pipeline, products should be installed in the bottom of the pipe. (Figure 1)
 

3. If there may be sediment in the pipeline, please products installed in the pipeline side wall, horizontal mounting (Figure 2), to avoid the air and sediment


4. Installation in a straight pipe close to bend or intersection place, the pipe length should not be less than 4 times the diameter of pipeline.