Nanjing Hanhua Fluid Technology Co., Ltd

Anti-vibration vortex street flow meter.

Brand: Hanhua.

Series: NCF-AVMP Series.

Product introduction:
NCF-AVMP adaptive vibration-resistant multi-participation vortex street flow meter is an upgraded version of the last generation of vibration-resistant multi-participating vortex street mass flow meter, fully inherited the advantages of the last generation of vortex street mass flow meter, adapt to a variety of media, simple installation (no pressure and ancillary equipment), vibration performance outstanding, low starting flow rate, rugged (immune components) and calibration of unaffected media. Can be widely used in petroleum, chemical, metallurgy, electricity, light industry and urban heating, gas supply, water supply and drainage and other industries flow measurement.

Product performance tables:
Serial number Name Common anti-vibration vortex street flow meter NCF-AVMP.
1 Poor vibration resistance.
2 Anti-jamming noise is generally strong.
3 Liquid Minimum flow rate 0.4m/s 0.2m/s.
4 Range ratio 10:1 30:1.
5 Measurement error 1.0% 1.0%
6 Gas Minimum flow rate 6m/s 2m/s.
7 range ratio 5:1 20:1.
8 Measurement error 1.5% 1.0%
9 Steam minimum flow rate 6m/s 2m/s.
10 range ratio 5:1 20:1.
11 Measurement error 1.5% 1.0%
12 Directly determine that the sensor fault and interference are not possible.

Product technical indicators.
1. Measuring media:
Gas, steam, low viscosity liquid.

2. Specifications (commonly known as pass):
1) Full tube series.
DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300.
2) Plug-in series.
A round tube with any tube diameter between 200mm and 4000mm.
Rectangular tubes with a length of not more than 4000mm.

3. Measurement range:
1) Gas.
Measurement lower limit: Re≥5000, and operating flow rate ≥, for fluid operating condition density, units ( )
Maximum measurement: 60m/s ≤ flow rate.
2) Steam.
Measurement lower limit: Re≥5000, and operating flow rate ≥, for fluid operating condition density, units ( )
Maximum measurement: 80m/s ≤ flow rate.
3) Liquid.
Measurement lower limit: Re≥5000, and operating flow rate ≥, for fluid operating condition density, units ( )
Measurement upper limit: 6m/s ≤ flow rate.

4. Accuracy level:
Level 1.0.
Level 1.5.

5. Pressure level:
1.6MPa.
2.5 MPa.
4 MPa.
Can be customized according to the conditions of the measuring medium.

6. Temperature range of the medium under test:
Low temperature type: -10 degrees C to 150 degrees C.
Medium temperature type: -10 degrees C to 250 degrees C.
High temperature type: -10 degrees C to 350 degrees C.

7. Output signal:
Frequency signal output: three lines, the active square wave output with a hollow ratio of about 50%, high-level≈ supply supply voltage-1V, low-≤1V.
Current signal output: 4 to 20mA two-wire system.
Pulse equivalent output:
Communication output: RS485, modbus RTU.

8. Power supply and load requirements:
Power supply: DC12V to 36V.
Load: RL ≤ (VCC-12V)/20mA K.

9. Explosion-proof rating:
Ben-type EX (ia) IICT6.

10. Protection rating:
IP65.

11. Vibration interferes with immunity:
At room temperature and pressure air 4m/s measured at the lower limit sensitivity, the immune vibration acceleration ≤5m/s2 continuous vibration and burst vibration.
Higher fluid density or lower measurement limits result in stronger vibrations that interfere with immunity.

12. Material:
Table body: stainless steel.
Transmitter housing: cast aluminum alloy.

13. Ambient temperature range (operating status):
No in-place display: -40C to 85C.
With LCD: -20C to 70C.

14. Ambient humidity range:
5% to 90% RH, no condensation.