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AVF7000 : Vortex Flowmeter
เนื้อหา


AVF7000 Series
AVF7000 is a Vortex Flowmeter based on Von Karman theory of vortices generated by 
a bluff body in the pipe. The number of vortices are linearly proportional to the volumetric flow in the pipe.

The AVF7000 is versatile flowmeter widely used for Gases, Steam & Liquid applications. 
There are no moving parts and comes with either flange or wafer connection. Standard configuration
has local indication for flowrate and total flow as well as 4-20mA with HART signal and pulse output 
functions. The microprocessor design can filter out erroneous signals as well as interfence caused by pipe vibration.

FEATURES
• Simplified setup and self-diagnostic functions
• Auto. Temperature & Pressure compensation 
• 4-20mA with HART signal and pulse outputs, user selectable
• A very wide selection of sizes
• Wide temperature range up to 420 oC
• Non-volatile memory for setup and calibration

SPECIFICATION

Size:

Local Display:

15,20,25,32,40,50,65,80,100,125,150

2 lines LCD

200,250,300,350,400,450,500mm

6 digit flowrate

Measuring Range:

8 digit Totalizer

Steam - 1.6 to 540,000 Kg/Hr

Current Output:

Gas - 3 to 46,000 M3/Hr

4-20 mA (2 wire) with HART signal

Liquid - 0.3 to 4950 M3/Hr

Load

Material:

Max. 1000 Ω

Stainless Steel 301 / 304 / 316

Pulse Output:

Accuracy           Liquid:

Scale Pulse 

+/-0.7% value of reading

Load

Gas & Steam

1000 Ω  - 5000 Ω

+/-1.0% value of reading

Communication:

Unit:

HART(Compatible) or RS485 (MODBUS Protocol)

Nm3/h, Nm3/m, Nm3/s, m3/d, m3/h, m3/m

Data Storage:

m3/s, l/h, l/m, l/s, t/d, t/h, t/m, kg/d, kg/h

Operation parameter and totalizer

kg/m, kg/s, g/h, g/m, g/s

figures are stored by EEPROM for more

Repeatability:

than 10 years

+/-0.2% value of reading

Housing Material:

Process Connection:

Aluminum Alloy

Flange / Wafer

Cable Entry:

Flange type

Standard :M20 Option:1/2"NPTF

JIS 10K / JIS 20K / JIS 40K

Power supply:

ANSI 150# / ANSI 300# / ANSI 600#

12-32 VDC

DIN PN 10 / PN 16 / PN25 / PN 40

Ni-MH Battery (3 years working Hours)

Wafer type

KeyPad:

DN40~DN250 without Temp. / Pressure Sensor

3 internal keys for programming

Temperature:

and display control

-40 ~ +280 oC (Standard)

Option:

-40 ~ +420 oC (Optional)

Pressure Sensor

Ambient Temperature:

Pressure compensation

-20 ~ +60 oC

Signal output

Pressure:

0-30 mV DC (20 uA Power supply)

78 Kg/cm2 (Max.)

Temperature Sensor

Protection Class:

Temperature compensation

IP 65

Signal Output

Explosion Proof, Exd IIC T6

PT1000 (2 wires)

Intrinsically Safe, Eex ia IIC T4

 

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