High Applicability Spdt Output Max 250º C/Min Pipeline Air Water Oil LED Disaplay Thermal Flow Switches

• Type: Electronic
• Number of Switch: Single Control Switch
• Structure: Power Built-in Type
• Usage: Control Switch
• Application: Industrial
• Explosion-proof Type: Non Explosion-proof
• Model NO.: QLK400
• Contact: Normally Open
• Contact Type: Type c Contact
• Detection Method: Correlation Type
• Brand: Xyt Meter
• Certification: CE
• Transport Package: Carton
• Specification: 0.5kg
• Trademark: XYT Meter
• Origin: China
• HS Code: 9026201090
• Production Capacity: 50000 Piece /Years

Product Description

Product Description

Overview
Flow switch is a measuring instrument that can monitor the liquid flow in the pipeline in real time by multiple LED disaplayers and provide signal output.
It can monitors following conditions:
Flow speed increasing or reducing, medium exists or not, the
medium is moving or not.
It is suitable for a variety of pipe diameter requirements, which can be used to protect idling pump and monitor the flow rate in the pipeline.

Features

1.All stainless-steel case without movable components,maintenance-free
2.Switching point could be connected and set on site
3.LED display shows flow state and on-off state
4.Small pressure loss, compact structure

 

Specification
 

Measuring range	1~150cm/s(water),3~300cm/s(oil)
Supply voltage	24±20%VDC
Current consumption	<90mA
Signal output	relay(SPDT),PNP
Transistor characteristics	Switch voltage: 24±20%VDC; Switch current: ≤1.2A;
The relay characteristics	Switch voltage: ≤250VAC/30VDC; Switch current: ≤3A
The initialization time	typical value 8s(2~15s)
Response time	typical value 2s(1~15s)
Temperature gradient	max250ºC/min
Medium temperature	-20~80ºC
Ambient temperature	-10~70ºC
Storage temperature range	-20~85 ºC
Pressure rating	10MPa
Probe materials	304 stainless steel
Housing material	304 stainless steel
Protection	IP67

 

Dimension
Electrical definitions
Installation


Regulation

After install the products on the pipe, please connect the wire connection according to the electrical definition. Switch on the power, then adjust product after 2 minutes.

As shown in the picture above, screw off the anti-dust screw, then we could see the adjustment point of potentiometer. Standing at the cable entry side, rotate the adjustment point in clockwise, the indicator would lights from left to tight in order, light off conversely.

For different applications, follow the steps below to adjust, If the adjustment effect is not ideal, it can be repeated for several times.
NOTE:When the velocity of fluid flow changes from 15 to 30 seconds, then adjust the potentiometer.

1.Medium flow / reduce the flow rate
   a.Set the minimum flow rate or the standard flow rate lower than the set monitoring flow rate
   b.Adjust the potentiometer, make the right indicator LED lights
   c.Restore the monitoring flow rate, adjust the potentiometer, make the yellow indicator lights and at least one green indicator lights
2.Media presence / absence
Adjust the potentiometer, when the pipeline medium does not flow, make the red indicator lights, when the medium flows, make yellow and at least one green indicator lights.
3.Medium flow / still
Adjust the potentiometer, when there is no medium in the pipeline, make the red indicator light on, when there is a medium in the pipeline or there is a certain flow rate, make the yellow and at least one green indicator light on.
 

 

Company Profile

Packaging & Shipping

FAQ

1. How long will you reply me?
Normally in 1 hours, no more than  12 hours.
2. How can I get the quotation?
Please provide specification and application including sensing element, pressure range, thread connection, pressure type, medium, electronic connection, shell material etc. More details, more accurate quotation and earlier response.
3. Can I get sample?
Contact with our staff online directly and they would check stock for you.
4. Can I visit your factory?
You are warmly welcomed, our factory is located at Baoji city, Shaanxi province, China.
5. Can we use our logo on the products?
Yes, we provide OEM/ODM service.
6. How long is your warranty period?
Warranty period from the date of acceptance of 12 months.
7. What is your terms of payment?
We could accept T/T, L/C, Western union, PayPal.