ARSLU current type vortex flowmeter-Fornitore globale

Product Groups

Liquid level gauge

radar level gauge
Paperless recorder

Blue screen paperless recorder
Pressure gauge

pressure gauge

pressure transmitter

differential pressure transmitter

Wind pressure transmitter
Paper recorder

record paper

Paper recorder
Temperature instrument

temperature transmitter

Temperature and humidity transmitter
FLOW METER

Intelligent vortex flowmeter

Glass rotor flowmeter

Plastic tube rotor flowmeter

orifice meter

throttling device

Turbine Flowmeter

balanced flow meter

ultrasonic flowmeter

Metal float flowmeter

Firm Information

Transaction Level

VIP member
Contact
Phone

15995662383
Address

No. 99 Xiahe Road, Kunshan Economic Development Zone, Jiangsu Province

Contact Now

ARSLU current type vortex flowmeter

Product Code: 012 Product Name: ARSLU Current Vortex Flow Meter Product Specification: ARSLU Current Field Display Vortex Flow Meter Product Category:

Contact Supplier

More Products

Product details

1、 Working principle

ARSLUOn site display shows that the current output type vortex flowmeter is equipped with a triangular column vortex generator in the fluid, which alternately generates two columns of regular vortices from both sides of the vortex generator. This type of vortex is called Karman vortex street

ARSLUThe vortex column of the current type vortex flowmeter is asymmetrically arranged downstream of the vortex generator. Let the frequency of vortex occurrence befThe average velocity of the incoming flow of the tested medium isVThe width of the upstream face of the vortex generator isdThe diameter of the body isDAccording to the principle of Karman vortex street, there is the following relationship:

f=St.V/[]（1-1.25d/D）d[]

In the formula:

fFrequency of Karman vortex generated on one side of the body

StStrohal number

V- Average flow velocity of fluid

d- Column flow surface width

D-PIPE INNER DIAMETER

By installing capacitance detection probes or piezoelectric detection probes and corresponding matching circuits in the vortex generator, a capacitance detection vortex flow rate can be formed/Sensor or piezoelectric detection type vortex flow sensor.

In the curve tableSt＝0.17The frequency of vortex release is proportional to the flow velocity in the straight part of the vortex,That is, the measurement range of the vortex flow sensor. As long as the frequency is detectedfThe flow velocity of the fluid inside the pipe can be obtained by measuring the flow velocityVCalculate the volumetric flow rate.

　 Q＝3600f/KperhapsM=ρ3600 f/K

In the formula:K=Instrument constant（1/m³）。

M=mass flow

Q=Volume flow rate（m³/h）

ρ=Medium density（kg/m³）

F=frequencyHz

2、 Main technical indicators

outside(one)

Measurement medium	Liquid, gas, steam (single-phase medium or medium that can be considered single-phase)
	Saturated steam with dryness ≥85%When, it can be considered as a single-phase medium
medium temperature(℃)	-40～+300； 350～450(Capacitive, protocol ordering)
Medium pressure	1.6Mpa 2.5Mpa 4.0Mpa ≥4.0MpaThe specification agreement for ordering
Allow vibration acceleration	Capacitive sensor:1.0～2.0g Piezoelectric sensor: ≤0.2g
Uncertainty	1.0level 1.5level 2.5level
Range ratio	8:1 10:1 15:1
Flow range	Liquid:0.35~7.0m/s Gas:5.0~60.0m/s Steam:6.0~70.0m/s
Specifications	Full tube type	The flange card installation specification isDN15-DN300
	plug-in	DN200-DN1500(Exceeding)DN1500Special orders are available)
Material	304Other material agreement ordering
Reynolds number	normal2×10³~710 extend110~7*10
drag coefficient	Full tube typeCd≤2.6
protection grade	Ordinary type:IP65 Diving type:IP68
Explosion proof grade	Intrinsic safety type:EX（ia）ⅡCT2-T5 Explosion proof type:ExdⅡBT2-T5
environmental condition	ambient temperature	-40℃~+55℃ (non explosion proof location) -25℃~+55℃ (explosion-proof location)
	relative humidity	≤90%
	atmospheric pressure	86~106kPa
power supply	impulsive12VDC～+24VDC current mode12VDC～+24VDC 4-20mA On Battery3.6V
output signal	Frequency pulse signal2~3000Hz Low level ≤1V High level ≥5V
	two-wire system4-20mAExplosion proof signal load ≤300Ω Non explosion proof load ≤500Ω

3、 Flow Range Table of Vortex Flow Sensor under Reference Conditions

Instrument caliber (mm)	liquid		gas
Instrument caliber (mm)	measuring range (m³/h)	Output frequency range (Hz)	measuring range (m³/h)	Output frequency range (Hz)
15	0.3-6	88-580	2.2-38	240-2350
20	0.6-12	38-422	4-50	210-2132
25	1.2～16	25～336	8.8～55	190～1140
40	2～40	10～200	27～205	140～1040
50	3～60	8～160	35～380	94～1020
80	6.5～130	4.1～82	86～1100	55～690
100	15～220	4.7～69	133～1700	42～536
150	30～450	2.8～43	347～4000	33～380
200	45～800	2～31	560～8000	22～315
250	65～1250	1.5～25	890～11000	18～221
300	95～2000	1.2～24	1360～18000	16～213
(300)	100～1500	5.5～87	1560～15600	85～880
(400)	180～3000	5.6～87	2750～27000	85～880
(500)	300～4500	5.6～88	4300～43000	85～880
(600)	450～6500	5.7～89	6100～61000	85～880
(800)	750～10000	5.7～88	11000～110000	85～880
(1000)	1200～1700	5.8～88	17000～170000	85～880
>(1000)	agreement		agreement

Note: In the table(300)～(1000)The caliber is insertable

4、 Standard state density of commonly used gas media（20℃Absolute pressureP=0.1MPa）

Gas name	density(kg/m³)	Gas name	density(kg/m³)
air(shield)	1.2928	acetylene	1.1717
nitrogen	1.2506	ethylene	1.2604
oxygen	1.4289	propylene	1.9140
argon	1.7840	methane	0.7167
neon	0.9000	ethane	1.3567
ammonia	0.7710	propane	2.0050
hydrogen	0.08988	butane	2.7030
carbon monoxide	1.97704	natural gas	0.8280
carbon dioxide	1.3401	coal-to-gas	0.8020

5、 Selection of vortex flowmeter:

Specification code

describe

enterprise standard

ARS

Instrument type

L

FLOW METER

Working principle

U

Carmen Vortex Street

Product category

B

Common

C

Fixed insertion type

G

local display

Installation type

-2

Flange card installation

Tested fluid

2

liquid

3

gas

Path code

-01B

orifice15mm

02A

orifice20mm

02

orifice25mm

03

orifice32mm

04

orifice40mm

05

orifice50mm

06

orifice65mm

08

orifice80mm

10

orifice100mm

12

orifice125mm

15

orifice150mm

20

orifice200mm

25

orifice250mm

30

orifice300mm

35

orifice350mm

40

orifice400mm

45

orifice450mm

50

orifice500mm

XX(Only plug-in type)

orificeXX*10mm

Table body material

C

carbon steel

F

stainless steel

Converter type

-1

combined type

output signal

1

Pulse frequency output

2

0-10mAoutput

3

4-12mAoutput

Fluid temperature

1

Common-40┈+250oC

3

High temperature type+250oC┈+350oC

Online inquiry

Contacts
Company
Telephone
Email
WeChat
Verification Code
Message Content