Shaanxi, China
Business Type:
Business Range:
Agriculture & Food, Chemicals, Electrical & Electronics, Health & Medicine, Industrial ...
Year of Establishment:
Terms of Payment:
T/T, PayPal, Western Union, Alipay
OEM/ODM Availability:
OEM/ODM Service
Sample Available
MEI Awards

Flow switch, intelligent flow switch, water flow switch manufacturer / supplier in China, offering Thermo Intelligent Flow Switch (MFM500A), Accurate 19mm Piezoresistive Water Tank OEM mv Output Stainless Steel Small Size Pressure Sensor MPM280, All Welded Piezoresistive Oil Fuel Tank Use 3.5MPa Anti-corrosive OEM Differential Pressure Sensor MDM290 and so on.

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Thermo Intelligent Flow Switch (MFM500A)

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Min. Order: 1 Piece
Port: Xian, China
Transport Package: Standard Package
Payment Terms: T/T, Western Union
IP Rating: IP67
Certification: ISO9001
Type: Thermal Type
Media Type: Liquid
Power Supply: 24VDC or 220VAC
Measuring Range: 1cm/s~150cm/s (water);

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Basic Info

Model NO.
Output Signal
1 relay, 2 NPN, 2 PNP
Water Temp.
-20~80 C
Storage Temp.
Working Temp.
-20~70 C
Protection Class
Micro Sensor
ISO9001: 2008
Baoji China
Thermo Intelligent Flow Switch (MFM500A)
MFM500A Flow Switch is an intelligent thermal diffusion principle-based flow monitoring sensor. It can ensure measurement accuracy in the case of water temperature change and is available for real-time monitoring of pipe water flow.

With self-luminous OLED screen, it allows switchable display between the progress bar and digital display numbers. MFM500A supports quick action point set, also it has display inversion function that enables installation in any direction, and no need for frequent adjustment and maintenance.

1. Power generation,
2. Metallurgy
3. Steel
4. Paper
5. Boilers etc.

·Optional power supply 24VDC or 220VAC
·OLED screen, switchable display between the progress bar and digital display
·All stainless steel housing, IP67 protection
·Temperature compensation
·2-way PNP ¦ 2-way NPN ¦ 1 relay output are optional
·No moving parts, maintenance-free
·Switch output, control point setting continuously on panel
·Compact size, support inverted display
·Mounting joint can be equipped with different interfaces for a variety of pipe diameters requirement

Measure Range:1cm/s~150cm/s (water);
Optimal Range: 3cm/s~100cm/s (water)
Power Supply: (24±4.8)V DC / 220VAC
Working Current: ≤ 60mA
Switch Accuracy: ±10cm/s
Hysteresis: ±2cm/s~±8cm/s
Initial Time: 2s~15s, 8s(typ.)
Switch-off Time:1s~15s, 2s(typ.)
Switch-on Time:1s~13s, 2s(typ.)
Output Signal: 1 relay2 NPN2 PNP
Output Function: NO, NC(optional)
Relay Characters:
Switch voltage: ≤ 250V AC / 30V DC
  Switch current: ≤3A
Transistors Characters:
  Switch Voltage Drop: ≤ 1.5V
  Switch Current: ≤ 400mA
Display: OLED indicator, resolution 128×32
Electric Protection: Reverse, short-circuit,
Housing: S.S.
Button: PP
Probe: S.S.
Installation: Joint mounting + adaptor
Endurance Pressure: 10MPa
Set: Button
Electric Connection: M12×1 5-pin plug
Gross weight : 265g
Water Temp. : -20ºC~80ºC
Storage Temp. : -30ºC~85ºC
Working Temp. : -20ºC~70ºC
Protection: IP67
Temperature Compensation: 5ºC~50ºC(water)
Electromagnetic Compatibility: GB/T17626.2/3-2006, GB/T 17626.4-2008
Shock: ≤3g (GB/T JJG 882-2004)             
Impact: ≤ 50g/11ms (GB/T 2423.5-1995)

Note: The above specification test medium is water; 5cm/s~100cm/s; 20ºC(Factory defaults)

Outline Construction:

Thermo Intelligent Flow Switch (MFM500A)

Order Guide:
MFM500AFlow Switch 
  CodePower Supply 
   CodeProcess Connection 
C1M20×1.5 male adaptor(MS601) 
C3G1/2 male adaptor(MS602) 
J1×Relay Output 
N2×NPN Transistor Output 
P2×PNP Transistor Output 
  CodeProbe Length 
MFM500A  DC      C3     J        L1                     Whole Spec. 

Certificates We Have
Thermo Intelligent Flow Switch (MFM500A)

Company Overview
Thermo Intelligent Flow Switch (MFM500A)

Products Family
Thermo Intelligent Flow Switch (MFM500A)

1. Q: Are you manufacturer or trading company?
    A: We are 48-year professional manufacturer of Pressure/ Level/ Temperature/Flow transmitters with 4~20mA, Hart, Rs485 & Modbus protocols, pressure sensors with SDI, I2C, 4~20mA, 0.5~4.5V and etc, and wireless IOT measurement transmitters. We provide high quality products with high competitive factory price.
2. Q: What's your quality control system?
    A: As an ISO9001:2008 certificated manufacturer, we have strict quality control system, and each product is done fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
3Q: Is there MOQ with your product?
    A: We have no MOQ limits, 1pc for testing is acceptable.
4Q: Do you provide customized products?
    A: Yes, we can print your logo on our products; OEM, ODM & customization are welcomed.
5. Q: What is the warranty of your products? And after-sales service?
    A: Our warranty time is 12 months after shipment, and our after-sales will respond with your questions in 24hrs, remote instruction by PC network is always available.
6. Q: What is lead time of your product?
    A: We are factory, our lead time is always within 10~15 working days for products without customization, but lead time will vary based on different products. You can check detail lead time with our sales.

7. Q: What international certificates do you have for your products?
    A: we have CE, RoHS, UL, ATEX as well as ship-use DNV etc.


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