粉嫩Av在线|av电影天堂网|懂色av成人一区二区|《丰满的女邻居》韩国|完美世界小说全文免费|国产香蕉尹人视频在线|亚洲国产综合av|久久免费视频观看,国产精品蜜臀91导航,蜜芽AV无码专区,男女黄色片久久久

Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
 
 
 
 
 
Glass Tube Flowmeter
LZB/LZJ series glass rot...
Glass Tube Flowmeter
Glass Tube Flowmeter
LZB-()W/WB series micro ...
Glass Tube Flowmeter

 


Electromagnetic Flow meter

Summary
The electromagnetic flowmeter is composed of two parts by electromagnetic flow sensor and electromagnetic flow converter.The operation of an electromagnetic flowmeter is based on Faraday law of electromagnetic induction.The mainly parts of the sensor are: measuring tube,electrode poles,excitation coil,iron core,yoke and housing. The measuring tube of the sensor is a short alloy tube whose diameter is D, the inner surface of it has an insulating liner.Two electrodes are fixed in the measuring tube along with the diameter direction of it and they usually flush with the inner surface liner.When excitation coil pulsed by two-way square wave,there generates a working magnetic field with a flux density B in the vertical direction of the measurement axis.In the meantime,if some electrical conductivity liquid flows at an average velocity V through the measuring tube ,cuts lines of the magnetic field,there generates induced electromotive force E.Electromotive force E is directly proportional to the product of flux density B、measuring tube diameter D and average velocity V,that's: E BVD. Electromotive force E(flow signal) is measured by the electrodes and transmitted to transducer through cable.After the transducer handles the flow signal by magnifying it, the flow and total amount can be displayed,also will output pulse and analog current etc.
Main technical parameters


◆ Technical parameters of whole flowmeter and sensor


Chart 1

Carried Standard

ANSI/DIN/JIS

DN

3.6.10.15.20.25.32.40.50.65.80.100.125.150.200.250.300.350.400.450.500.
600.700.800.900.1000.1200.1400.1600.1800.2000.2200.2400.2600.2800.3000

Max.Flow Velocity

15m/s

Accuracy

±0.5% of indicating value(flow velocity 0.8m/s); ±4mm/s(flow velocity<0.8m/s )

Fluid Conductivity

≥5uS/cm

Nominal Pressure

4.0MPa

1.6MPa

1.0MPa

0.6MPa

6.3,10MPa etc.

DN3~DN150

DN15~DN600

DN200~DN1000

DN700~DN3000

Special Ordering

Lining Material

PTFE,Poly neoprene,Polyurethane,F46,PFA with net

 

Sensor

-25 deg.C~+60 deg.C

Convertor and integrated type

-10 deg.C~+60 deg.C

Fluid Max.Temperature

Integrated type

70 deg.C

Separated type

Poly Neoprene Lining

80 deg.C;120 deg.C(notes in order)

Polyurethane Lining

80 deg.C

PTFE Lining

100 deg.C;150 deg.C(notes in order)

FEP Teflon

PFA with net

Material of signal electrode and ground electrode

SS316L,HastelloyB,HastelloyC,Ti,Ta,Platinum-iridium alloy,Stainless steel coating with tungsten carbide

Electrode drawknife apparatus

DN80~DN3000

Connection flange material

Carbon steel

Connection ring material

Stainless steel1Cr18Ni9Ti

Enclosure protection

ND15~DN3000 separated sensor with rubber or PU lining

IP65 or IP68

Integrated(rounded converter)

IP65

Other sensors and separated converter

IP65

Explosion proof sensor and converter

IP65

Spacing(separated type)

Normally the separation distance between converter and sensor is less than 100m,if more please order specially.(Note: our company provide 10m length standardly,if need more, please indicate the length in order, and the cost will be add more)

Output of analog current

0~10mA     load resistance 0~1.5Ω

4~20mA     load resistance 0~750Ω

Frenquency output

1~5000Hz

Pulse output

Separated type output by two way: forward and reverse flow; integrated type output one way

Frenquency range:0~5KHz,uper limit 1~5 optionally

Square wave or pulse with 25ms pulse width

Transistor switch output with isolation protection,can absorb 250mA current and withstanding 35V voltage

Two-path alarm output

Alarmable(programable)high/low flow,blank pipe,fault condition,forward and reverse flow,simulation volume exceeds range,pulse volume exceeds range,disconnect pulse small signal

Transistor switch output with isolation protection,can absorb 250mA current and withstanding 35V voltage(Not isolated with pulse output)

Digital communications

RS232,RS485,HART(add specially)

Explosion proof mark

Integration ExdeiaⅡCT4

Separated Exd[ia] ⅡCT4(converter)     ExdeiaⅡCT4(sensor)

[Type Selection]
LDG □□□ □□ □□ □□
│   │    │  │ ││  ││   │  │  │
a    b     c   d  e f   g h    i   j   k


a. Connect type
A Flange connection
B Clamping connection

                                            e. electrode material
1.Stainless steel 0Cr18Ni12Mo2Ti
2.HastelloyB
3.HastelloyC
4.Titanium
5.Platinum-iridum alloy
6.Tantalum

b. Nominal bore(mm)
Code    DN      Code    DN      Code    DN
015     15        250      250      10A      1000
020      20        300      300      12A      1200
025      25        350      350      14A      1400
040      40        400      400      16A      1600
050      50        450      450      18A      1800
065      65        500      500      20A      2000
100      100      600      600      22A      2200
150      150      700      700      24A      2400
200      200      800      800      26A      2600
900      900      28A      2800
30A      3000

                                              f. Shell protection
1.IP65
2.IP68+IP65(IP68sensor+IP65converter)(c only can select 2,3;g only select 0;i only select CR;K only select 01,02)
3.IP67(c only select 2,3;g only select 0;i only select CH; k only select 02)

g. Explosion-proof mark
0.Nothing
1.Integrated type (f only select 1,k only select 03)
2.Separated type (f only select1,k only select 02)

  1. Nominal pressure(MPa)

06        0.6           (DN700~DN3000)
10        1.0           (DN15~DN1000)
16        1.6           (DN15~DN600)
40        4.0           (DN15~DN150)
xx for special order

                                             h.Accessory

  1. Nothing
  2. Grounding electrode(DN25~DN3000)
  3. Grounding ring(DN15~DN3000)
  4. Electrode scraper structure(DN80~DN3000)

                  i. Structure
CR Divided type
CH Integrated type

j. Power supply
1.85~265V  AC  45~400Hz
2.16~40V DC  3.Lithium battery

  1. lining material

 

1.FTFE(F4)                (DN15~DN1000)
2.Polychloroprene        (DN15~DN3000)
3.Polyurethane             (DN15~DN600)
4.FEP(F46)                 (DN15~DN250)
5.screened PFA           (DN50~DN250)

k. Converter type
01.Square separated type/single current/dipluse/double knock
02.Round separated type/single current/dipluse/double knock
03.Round integrated type/single current/single pulse/double knock
04.Square integrated type/single current/single pulse/double knock
Notes: 1. Communication protocol: RS232,RS485.HART optional
2.Batch control function optional
3.GPRS remote monitoring function optional



? 2012 Changzhou Chengfeng Flowmeter Co.,Ltd All Rights Reserved   Main Products:Electromagnetic Flow meter  Metal Tube Flow Meter  Glass Tube flow Meter
Design by Lingdong Internet  Switchboard:86-519-85503558,86-519-85503688  Fax:86-519-85505269,86-519-85503588-8008
Friendly Links:成豐儀表阿里巴巴店鋪    新浪    
精品毛片大全| 成人直播在线| 大鸡巴AV大香蕉| 超碰免费公开人人cao91| 日韩美女乱伦| 九七激情网| 视频一区二区三区欧美日韩| AV语音天堂| 久草Av亚五月婷五月婷| 爱爱3p视频| 乱伦图五月天| Julia爆乳无码AV一二三| 爱爱麻豆| 色呦呦资源91n人妻资源站| 亚洲国产成人va在线观看天堂| 人操人免费视频| 丁香五月性| 超碰中文丝袜| 只有两根大鸡巴才能满足的淫荡人妻 | 老司机毛茸茸色导航| 亚洲精品AV无码精品不卡| 爽人人妻人人爽人人爽| 国产一级特黄免费视频| 色呦呦免费视频日韩国产一区| 最新加勒比天堂网东京热99 | 91视频,嗯嗯嗯,,啊啊啊| 日韩在线免费AV| 护士人妻HD中文字幕| 国产精品va在线播放| 黄日三级片在线免费| 岛国性网址| 日韩肏屄视频/| 玖玖草草草| 精美人妻一区| av丁香五月天加勒比在线| 91国产人人| 超碰搞少妇| 日韩操碧视频| 欧美熟女亚洲巨乳中文字幕| 超碰人人做爱| 操熟女,91| 欧洲色欲亚洲| 伊人影院AV在线| 中文AV三级| 欧美日韩国产在线专区| 91社久久| 亚洲天堂美女av一区二区三区| 黑人大吊熟女AAA| 日本 熟女BT自拍论坛| 农村乱伦五月天| 久久久受WWW免费人成| 亚洲欧美日韩香蕉视频| 撸一撸操再操| 久久精品视频一及毛片| 影音先锋男人一区| 91黄色视频在线观看| 日韩av操逼中出骚女色妇淫穴| 涩涩亚洲精品视频| 91青春草视频在线观看| 狼人大香蕉婷婷五月天www强| 左山爱影院| 九哥AV| 激情五月成人开心网| 嫩草影院人妻,操出白浆| 51精品国产综合久久久久久 | 手机久草av看片| 欧美无套高清| 夜夜嗨AV妲己| 欧洲一级黄片| 亚洲白色av社区| 欧美亚洲综合一区二区三区鲁大师| 2025av亚洲欧美天堂| 吃下面视频免费在线一起97| 越南女子杂交内谢1| 熟妇精品91| AV无码不| 无码极品干炮中文字幕| 色色伊人阁| 美女抠逼国产精品| 色情五月久久婷婷丁香综合| 麻豆视频三级| 午夜寂寞大| 人妻AV无码一区| 色久悠悠| 午夜福利精品人妻| 亚洲无码少妇| 美姉妹 剥! 电影| 欧美一级二级三级在线观看视频|