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Vortex flow meter is an instrument that placing a non-streamlined vortex generating body in fluid to alternately separate the fluid in the body sides and release two bunches of regular staggered vortex, and the frequency of separating vortex is directly proportional to flow in a certain range. It is researched and produced based on the principle of the Karman Vortex Street, and has characteristics of high accuracy and small pressure loss. Our clamping type vortex flow meter (LF501) has better performance and functions.
1,It has the functions of resetting cumulative flow and recovering data.
2,Its backlight LCD can let users clearly read results under direct sunlight or in dim room.
3,It can display instantaneous flow, cumulative flow and alarm status.
4,Available rotated 90 degree around the display from the standard position to meet visibility requirement that a flow meter is installed in different location.
5,Conform to the CE mark and the RoHS compliant.
Liquid, gases, steam
-40 ~ 200°C(-40 ~ 392°F)
-40 ~ 420°C(-40 ~ 788°F)
-25 ~ 85°C(-13 ~ 185°F)
Gauge Body Temperature:
-40 ~ 110°C(-40 ~ 230°F)
Transportation and Storage:
-40 ~ 85°C(-40 ~ 185°F)
Liquid:± 0.75% of reading
Gases and steam: ± 0.1% of reading
Note: These values are the accuracy of pulse output, if there is analog output, the above values need to plus ± 0.15% of full scale.
± 0.2% of indication
± 0.2%/per year
Effect of Environment Temperature:
Has no effect on digital and pulse output
For analog output, ± 0.15% of range(-25 ~ 85°C)
Effect of Installation Location:
When the instrument is installed in horizontal, vertical, or sloped pipe, it can meet accuracy index.
HART Analog: in the case of 30A/m, the output error is less than ± 0.15% of full scale, in line with the IEC60770-1984
Effect of Power Supply:
HART Analog: less than 0.005% of full scale/ per volt
Aluminum alloy (ADC12)
Toughened glass (thickness 10mm)
Aluminum (thickness 0.5mm)
Standard: Acrylic baking resin
Cover: dark blue
Housing: light gray
Analog, Pulse, HART
Can display flow value, temperature and accumulated flow at the same time by percentage or engineering units
Can be adjusted 90 degrees to the left or right
Self-diagnostic and Alarm:
If it occurs hardware fault of CPU or EEPROM, outrange signal output, EEPROM error, or abnormal state of vibration noise, congestion or bubbles and so on, there will be alarm output signal and displayed on the display.
Less than 1W