|
Measured variable
|
Volumetric flow
|
|
Nominal diameter
|
DN10~DN200 |
|
Range ratio
|
DN10: 1:6; DN15-DN200: 1:10 |
|
Transmitter output
|
Pulse width
|
Maximum 500ms (divided evenly according to frequency)
|
|
Pulse
frequency
|
(1~2000) Hz (depending on turbine diameter)
|
|
Pulse
coefficient
|
Depending on the turbine diameter
|
|
Power supply
|
DC: (12~24)V
|
| Power consumption |
24 VDC power supply: maximum 0.5 W; 12 VDC power supply: maximum 0.15 W |
|
Electrical
interface
|
Aviation connector, active pulse output
|
|
Accuracy
|
Level 0.5 / Level 1.0
|
|
Repeatability
|
1/3 of the accuracy level
|
|
Response time
|
250ms
|
|
Medium viscosity
|
less than 5×10 -6 m²/s (for liquids with a flow rate greater than 5×10 -6 m²/s, the flowmeter must be calibrated with actual liquid before use)
|
|
Medium temperature
|
(-20 ~ 80)℃ (stainless steel measuring tube)
|
| Process connection |
Threaded |
DN20-DN50: PN < 6.3 MPa |
| Flange |
DN20-DN50: PN < 1.6 MPa |
| Clamp |
DN20-DN50: PN < 1.6 MPa |
| Ambient conditions |
Temperature: (-20 to 60) C; Relative humidity: 5%-90% |
| Storage conditions |
Temperature: (-20 to 60) C; Relative humidity: <=85% |
The FLC420 turbine flowmeter is a velocity-type instrument used to measure the volumetric flow rate of low-viscosity liquids in closed pipelines, such as water, liquefied petroleum gas, refined petroleum products, light crude oil, and organic and inorganic liquids free of fibers and particulate impurities.
Featuring a simple structure, high accuracy, and easy installation, operation, and maintenance, the product is widely used for flow monitoring and control of small-flow media in industries such as pharmaceuticals, chemicals, food and beverage, and small-scale production lines. It is also a core flow measurement product for the computing power industry, where accurate monitoring of clean, water-like cooling liquids inside data center liquid cooling loops is essential.
* High accuracy and good repeatability: accuracy Level 0.5 or Level 1.0; repeatability is 1/3 of the accuracy level
* Wide range ratio: up to 10:1 (DN15-DN200; 1:6 for DN10)
* Multiple structural designs: threaded, flange, and clamp connections for convenient selection
* Simple structure, easy to install and use
* Low power consumption: maximum 0.15 W at 12 VDC, maximum 0.5 W at 24 VDC
* No sealing ring, no leakage
* Fast response: 250 ms response time
* Computing power & data centers: flow monitoring of clean, low-viscosity cooling liquids in liquid cooling circulation loops
* Pharmaceuticals: small-flow media monitoring and control
* Chemicals: flow measurement of organic and inorganic liquids free of fibers and particulate impurities
* Food and beverage: sanitary process flow monitoring
* Petroleum and energy: water, liquefied petroleum gas, refined petroleum products, and light crude oil measurement
* Small-scale production lines: compact flow monitoring and control
When the measured liquid flows through the flowmeter sensor, its internal impeller rotates with the help of the liquid's kinetic energy. At this time, the impeller blade causes the magnetic resistance in the detection device to change periodically. Therefore, an electric pulse signal proportional to the flow rate is induced at both ends of the detection coil and is amplified by the preamplifier, then sent to the display unit. The single chip microcomputer system in the display unit calculates according to the number of pulses measured and the meter coefficient K of the flowmeter, and displays the instantaneous flow rate and the accumulated total amount.
The relationship between the meter coefficient and instantaneous flow, frequency,
pulse number, and cumulative total is:
K=f/Q and K=N/V
In the formula:
f—flow signal frequency (Hz)
Q—instantaneous flow rate (m3 /s, or /L/s)
N—pulse number
V—Total volume (m3 )
| Nominal Diameter |
Flow Range (m3/h) |
Range Ratio |
Available Connections |
| DN10 |
(0.2-1.2) |
1:6 |
Flange / Threaded (incl. straight pipe section) / Clamp (incl. straight pipe section) |
| DN15 |
(0.6-6) |
1:10 |
Flange / Threaded / Clamp |
| DN20 |
(0.8-8) |
1:10 |
Flange / Threaded / Clamp |
| DN25 |
(1-10) |
1:10 |
Flange / Threaded / Clamp |
| DN32 |
(1.5-15) |
1:10 |
Flange / Threaded / Clamp |
| DN40 |
(2-20) |
1:10 |
Flange / Threaded / Clamp |
| DN50 |
(4-40) |
1:10 |
Flange / Threaded / Clamp |
| DN65 |
(7-70) |
1:10 |
Flange / Threaded / Clamp |
| DN80 |
(10-100) |
1:10 |
Flange / Threaded / Clamp |
| DN100 |
(20-200) |
1:10 |
Flange / Threaded / Clamp |
| DN125 |
(25-250) |
1:10 |
Flange only |
| DN150 |
(30-300) |
1:10 |
Flange only |
| DN200 |
(80-800) |
1:10 |
Flange only |
Q：What liquids can the FLC420 turbine flowmeter measure?
It measures the volumetric flow rate of low-viscosity liquids in closed pipelines, such as water, liquefied petroleum gas, refined petroleum products, light crude oil, and organic and inorganic liquids free of fibers and particulate impurities. Medium viscosity should be less than 5x10-6 m2/s; for liquids above this value, the flowmeter must be calibrated with the actual liquid before use.
Q：What sizes and flow ranges are available?
Nominal diameters from DN10 to DN200. Flow ranges: DN10 (0.2-1.2) m3/h up to DN200 (80-800) m3/h, with a range ratio of 1:6 for DN10 and 1:10 for DN15-DN200.
Q：What output signal does the FLC420 provide?
It provides active pulse output through an aviation connector. Pulse frequency is (1-2000) Hz depending on the turbine diameter, and the maximum pulse width is 500 ms (divided evenly according to frequency).
Q：What are the medium temperature and ambient limits?
Medium temperature: (-20 to 80) C with a stainless steel measuring tube. Ambient temperature: (-20 to 60) C with relative humidity of 5%-90%; storage temperature: (-20 to 60) C with relative humidity <=85%.
Q：What process connections are available?
Three connection types: threaded (DN20-DN50, PN < 6.3 MPa), flange (DN20-DN50, PN < 1.6 MPa, standard HG/T 20592-2009), and clamp (DN20-DN50, PN < 1.6 MPa). The flange connection covers DN10 to DN200. Body materials are 304SS or 316LSS.
