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Capacitive type，High temperature vortex flowmeter

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Capacitive type，High temperature vortex flowmeter

[Product Name] Vortex Flowmeter
[Product Brand] Wei Liu
[Nominal diameter] DN10-DN600
[Connection form] Snap-in flange connection
[Power supply mode] Lithium battery / 24VDC
[Output signal] Maishen/4-20mARS485 [Display mode] Chinese display/English display
[Accuracy] 1.0%R 1.5%R
[Protection level] IP65 IP68 (need to be customized)
[Measuring medium] Liquid gas steam
[Body material] 304/316L stainless steel material
[Temperature] -150C~420C
[Pressure] 0.3MPa~4.0MPa

Category

Vortex flowmeter

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Hotline：+86-18660362576

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Product description

Parameters

Design & installation for meter and ensuring caliber

chart(II) extent table of reference condition under working condition

caliber (mm)	liquid			gas
	measurement range (m3/h)	Output		measurement range (m<3/h)	Output
		frequency range	Small-Signal		frequency range	Small-Signal
		(Hz)			(Hz)
15	0.4～4	40～400	15	3.0～12	280～1200	100


20	0.8～8	33～330	10	6～30	230～1100	80

25	1.2～12	25～250	8	9.0～55	200～1200	70

32	2.0～20	20～200	6	12～120	120～1200	60

40	3.0～30	15～150	6	20～200	100～1000	50
50	5.0～50	13～130	5	30～300	80～800	40
65	8.0～80	9.7～97	4	50～500	60～600	30

80	12～120	7.7～77	3	80～800	50～500	25
100	20～200	6.7～67	2	120～1200	40～400	20
125	30～300	5.0～50	2	200～2000	35～350	20

150	40～400	3.8～38	1	300～<3000	30～300
200	75～750	3.0～30	1	500～5000	20～200	10
250	110～1100	2.3～23	1	800～8000	16～160	5
300	160～1600	2.0～20	1	1100～11000	13～130	5
-300	160～1500	5.5～87	2	1560～15600	85～880	45

	180～3000	5.6～87	2	2750～27000	85～880	45
-500	300～4500	5.6～88	2	4300～43000	85～880	45
-600	450～6500	5.7～892	2	6100~61000	85~880	45
-800	750～10000	5.7～88	2	11000～110000	85～880	45
-1000	1200～17000	5.8～88	2	17000～170000	85～880	45
>(1000)	agreement			agreement

Tips：above table the caliber (300)～(1000) is plug-in

name	density (kg/m3)	name	密度(kg/m3)
air(dry)	1.2928	acetylene	1.1717
nitrogen	1.2506	ethylene	1.2604
oxygen	1.4289	propylene	1.914
argon	1.784	methane	0.7167
Ne	0.9	ethane	1.3567
ammonia	0.771	propane	2.005
hydrogen	0.08988	butane	2.703
carbon monoxide	1.97704	natural gas	0.828
carbon dioxide	1.3401	Coal gas	0.802

table(III)　the density of common gas under normal state(0℃，absolute pr

Design & installation for meter and ensuring caliber

Design & installation

It is important to install meter，if not installed well, then would affect precision, use-life and damage

(I)environmental request for installing:

To avoid strong current, high frequency and powerful switch set, power supply of meter shall be avoided to near by these equipments.

To avoid high-Temp & radiation source. if have to install it, need heat insulation & ventilated measure.

To avoid high-Temp & etchant gas, if have to install it, need ventilated measure.

vortex street flow meter shall be avoided to install on shaking part of pipeline. if have to install on it，shall add clamp device and vibration pad which located on 2D to enhance shake proof . meter has better to installed indoors, pay attention to waterproof when installing meter outdoors，special notice the joint, make cable conductor to U shape to avoid water get into the amplifier body Around installing place shall save enough space，so that install connection line and maintenance routine

(II)Request for installing of pipeline meter：

vortex street-flow meter need a request for about installing point up-down stream pipe，if not flow field of medium will be affected in pipeline，refer to measurement accuracy of meter。up-down stream pipe of meter as chart(III)

D is nominal caliber of meter UNIT: mm

sensor upstream pipe type	front and back straight pipe length	sensor upstream pipe type	front and back straight pipe length
concentric contract opening- valve		90 degree elbow
two 90 degree Elbow which on a same plane		two 90 degree Elbow which not on a same plane
concentric expan ded pipe		control valve half open the vale (not recommend)

chart(III)

Tips: control valve shall not install on upstream of meter, it better to the downstream 10D.

Up-down internal diameter of pipe shall be same. if not，than internal diameter of pipe Dp and vortex street meter inner diameter Db, shall be as follow

0.98Db≤Dp≤1.05Db

Designing pipeline & caliber set

Up-down internal diameter of pipe shall be concentric with inner diameter of flow meter，The non- axiality shall be less than 0.05Db

1. sealing gasket which between meter with flange，can not joint inside pipe when installing，and its inner diameter shall more than meter `s about 1~2mm

2.Design for temp & press point. When test pipeline need install temp & pressure transmitter，pressure tap may be downstream of 3-5D，thermometer hole may be downstream of 6-8D，see chart(VII)。D is nominal caliber，Unit：mm

3. Meter can be installed by horizontal, vertical and bias ways on pipeline.

4. When test air, gas can flow anywhere when under uptake pipe to install. if there some air inside pipe ,to prevent liquid into the test pipe，so the air may from below to top, as list(IV)a

5. When test for liquid，to ensure pipeline filled full，so install meter under vertical or bias working condition，shall ensure liquid flow from below to top。If there are some air inside of pipeline，meter may be installed under pipeline to prevent air into it.

As chart(IV)as follow:

Chart(IV) 正确=right , 液体=liquid, 错误=wrong，气泡= air bubble

when test high& low temp medium，may pay attention to heat preservation. inside changer(inside body of gauge outfit)must be not more than 70℃;if low temp inside will produce water into meter and reducing insulation.

Ordering Notice & Sample chart

1.Honorific client，Pls do things well as follow before you choose our product, and read model selection sample carefully

a. Check working condition :Tem, press, pipe size, etc. b. Check flow range of test medium, special minimum discharge to ensure meter size & pipe parameter. c.Ensure the mounting position & straight pipe，to clear the working condition before installing d.Fill order form fine，as Appendix III

2.Model selection table of vortex street flow meter(JB/T9294-1999 standard)

1.Model selection table of sensor

Model selection for LUGB/E series vortex street meter

Model chart							Describing
LU							vortex street meter
G							sensor
TEST WAY	B					piezoelectric transducer
	E					Capacitance sensor
Joint way	1					flanged joint type
	2					flanged installing type
	3					simple plug-in
	4					ball valve plug-in
Test medium		2					liquid
		3					gas
		4					vapor
inside nominal diameter			2				DN25
			…				… unit：mm
			30				DN300
service environment				P			ordinary type
				B			explosion proof type
output signal					1		output pulse
					2		4～20mA currentoutput，liquid-crystal display
					3		RS-485 communication
					4		battery supply feed, without Temp、get pressure
					5		Tem-pre system，4～20mA current output type
					6		Tem-pre system，battery supply feed type
model selection	e.g.： LUGE2405-P2 full package type capacitance vortex street meter，flanged installing type joint， medium is vapor drift diameter of meter is DN50, ordinary 4～20mA current signal output