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Lunan
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Flow meter
Intelligent anti-corrosion electromagnetic flowmeter

智能型防腐电磁流量计采用世界最新技术。 DXLDE series intelligent anti-corrosion electromagnetic flowmeter uses the latest technology in the world. The use of constant current low-frequency three-value rectangular wave or double-frequency rectangular wave excitation has the advantages of rectangular wave magnetic field and overcomes the sine wave.

The shortcomings of the magnetic field; it can also eliminate errors caused by power supply voltage fluctuations, power supply frequency changes and excitation coil impedance changes; and it has excellent zero point stability and is not affected by fluid noise

. So it has the characteristics of high stability and high reliability. 测量原理是基于法拉第电磁感应定律,智能型防腐电磁流量计由传感器和转 The measuring principle of the intelligent anti-corrosion electromagnetic flowmeter is based on Faraday's law of electromagnetic induction.

The sensor is installed on the measuring pipeline. The converter can be combined with the sensor and is called an integrated electromagnetic flowmeter. The converter is installed within 30 meters or 100 meters from the sensor.

In the case of inside, the two are connected by a shielded cable, which is called a separate electromagnetic flowmeter. 传感器主要组成部分是:测量管、电极、励磁线圈、铁芯 The main components of the intelligent anti-corrosion electromagnetic flowmeter sensor are: measuring tube, electrode, excitation coil, iron core

With yoke housing. 主要用于测量封闭管道中的导电液体和浆液中的体积流量。 Intelligent anti-corrosion electromagnetic flowmeter is mainly used to measure the volume flow of conductive liquid and slurry in closed pipelines. Such as water, sewage, mud, pulp, various acids, alkalis, salts

智能型防腐电磁流量计 广泛应用于石油、化工、冶金、纺织、食品、制药、造纸等行业以及环保、市政管理,水利建设 Solution, food slurry, etc. Intelligent anti-corrosion electromagnetic flowmeters are widely used in petroleum, chemical, metallurgical, textile, food, pharmaceutical, papermaking and other industries, as well as environmental protection, municipal management, and water conservancy construction

And other fields.

Features:
1.The measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity;
2. There are no obstructing flow parts in the measuring tube, no pressure loss, and low requirements for straight pipe sections;
3. The nominal diameter of the series is DN15 ~ DN3000. Multiple choices for sensor liner and electrode materials;
4. The converter uses a novel excitation method, low power consumption, stable zero point and high accuracy. Flow range can reach 1500: 1;
5. The converter can be integrated or separated with the sensor;
6. The converter uses a 16-bit high-performance microprocessor, 2x16 LCD display, convenient parameter setting and reliable programming;
7. The flow meter is a two-way measurement system with three totalizers: forward total, reverse total and difference total; it can be displayed. Zhuang, anti-flow, and has multiple outputs: current, pulse, digital communication, HART;
8. The converter uses surface-mount technology SMT, with self-checking and self-diagnostic functions;

Main technical data:
Machine and sensor technical data

Implementation standards

T 9248~1999 JBT 9248 ~ 1999

Nominal diameter

2025324050658010012515020025030035040045050060070080090010001200140016001800200022002400260028003000 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 , 1400 , 1600 , 1800 , 2000 , 2200 , 2400 , 2600 , 2800 , 3000

Maximum flow rate

s 15m s

Accuracy

DN600 DNl5DN600

%流速≥1ms±3mms流速<1ms Indicative value: ± 0.3 % flow velocity ≥1m / s ; ± 3mm / s flow velocity <1m / s

DN700 ~ DN3000

%流速≥0.8mS±4mms流速<0.8mS ± 0.5 % of the indicated value, flow velocity ≥ 0.8m / S ; ± 4mm / s, flow velocity <0.8m / S

Fluid conductivity

cm ≥5uScm

Nominal pressure

4.0MPa

1.6MPa

1.0MPa

0.6MPa

10MPa 6.310MPa

DN150 DNl5DN150

DN600 DNl5DN600

DN1000 DN200 to DN1000

DN3000 DN700 to DN3000

Special order

Ambient temperature

sensor

60℃ -25 ℃-+ 60 ℃

Converter and integrated

60℃ -10 ℃-+ 60 ℃

Lining material

、加网PFA Teflon, Polychloroprene rubber, Polyurethane, Polyperfluoroethylene propylene F46

Fluid temperature

Integrated

70 ℃

Separated

Polychloroprene lining

120℃订货时注明 80 ℃120 ℃ indicate when ordering

Polyurethane lining

80 ℃

Teflon lining

150℃订货时注明 100 ℃ ; 150 ℃ indicate when ordering

Teflon F46

Screened PFA

Signal electrode and ground electrode materials

、哈氏合金C 、哈氏合金B 、钛、钽、铂/铱合金、不锈钢涂覆碳化钨 Stainless steel 0Crl8Nil2M02Ti , Hastelloy C , Hastelloy B , titanium, tantalum, platinum / iridium alloy, stainless steel coated tungsten carbide

Electrode scraper mechanism

DN300—DN3000

Connection flange material

Carbon steel

Ground flange material

Stainless steel 1Crl8Ni9Ti

Imported protective flange material

DN65—DNl50

Stainless steel 1Crl8Ni9Ti

DNl600 DN200 to DNl600

Carbon steel ten stainless steel 1Crl8Ni9Ti

Shell protection

DN3000分离型橡胶或聚氨酯衬里传感器 DNl5 to DN3000 separate rubber or polyurethane lined sensors

IP68 IP65 or IP68

Other sensors, integrated flow meters and separate converters

IP65

Pitch separation type

Converter distance sensor generally does not exceed 100m

Converter technical data

power supply

communicate with

45—400Hz 85—265V , 45—400Hz

DC

11-40V

Operation keys and displays

Push-button

个薄膜按键可设定选择全部参数,也可利用PCRS232对转换器设定编程; 4 membrane buttons can be set to select all parameters, and the converter settings can also be programmed using PC RS232 ;

LCD宽视角、宽温、带背光显示; 3- line LCD wide viewing angle, wide temperature, with backlight display;

行显示流量值; Line 1 shows the flow value;

行显示流量单位; Line 2 shows the flow unit;

行显示流量百分比、正向总量、反向总量、差值总量、报警、流速。 Line 3 shows the flow percentage, forward total, reverse total, difference total, alarm, and flow rate.

Magnetic key

个磁键用于显示参数的选择和复位,利用PCRS232对转换器设定编程; 2 magnetic keys are used to select and reset display parameters, use PC RS232 to program converter settings;

LCD宽视角、宽温、带背光显示: 2- line LCD wide viewing angle, wide temperature, with backlight display:

:磁键选择:显示流量百分比、正向总量、反向总量、差值总量、报警、流速。 Line 1 : magnetic key selection : display flow percentage, forward total, reverse total, difference total, alarm, flow rate.

行:显示流量。 Line 2 : Shows traffic.

Internal totalizer

Forward total, reverse total, and difference total.

output signal

One-way analog output

Fully isolated, load ≤600D . 时; At 20mA

可选,每档lmAUpper limit: 0-21mA optional, lmA per file;

可选,每档1mALower limit: 0-21mA optional, 1mA per file;

Programming of forward and reverse flow output.

Bidirectional analog output

The lower limit is limited to. ,其他同单向模拟输出。 Or 4mA , others have the same unidirectional analog output.

Bi-directional pulse output

频率0800Hz,上限1~800Hz可选,每档IHzThe two outputs correspond to the forward and reverse flow , respectively . The frequency is 0 to 800Hz, and the upper limit is 1 to 800Hz . Each step is IHz .

Square wave or selected pulse width, upper limit of selected pulse width 2 . ,每档1ms5S , 1ms per file;

的电流,耐压35VPassive isolated transistor switch output, can absorb 250mA current, withstand voltage 35V .

Dual alarm output

Alarm programming high / low flow, empty tube, fault status, forward, reverse flow, analog overrange, pulse overrange, pulse small signal removal, output polarity selectable;

可吸收250mA的电流,耐压35V.与脉冲输出不隔离 Transistor switch output with isolation protection , can absorb 250mA current , withstand voltage 35V. Not isolated from pulse output

Digital communication

 

RS485HART RS232 , RS485 , HART

Choice of lining

Lining material

Main performance

Maximum medium temperature

Scope of application

体型 —Body type

Separated

 

Teflon ( F4

It is a kind of plastic with the most stable chemical properties. It is resistant to boiling hydrochloric acid, sulfuric acid, nitric acid and aqua regia. Not resistant to the corrosion of chlorine trifluoride, high temperature chlorine trifluoride, high flow rate liquid fluorine, liquid oxygen, and autogenous oxygen.

70 ℃

需特殊订货 Special order for 100 ℃ and 150 ℃

、浓酸、碱等强腐蚀性介质。 1. Strong corrosive media such as concentrated acid and alkali. 、卫生类介质。 2. Sanitary media.

Polyperfluoroethylene ( F46)

,耐磨性、抗负压能力高于F4Same as F4 , the abrasion resistance and negative pressure resistance are higher than F4 .

Ibid

 

Polyfluoroethylene ( Fs

The upper temperature limit is lower than PTFE, but the cost is also lower.

80 ℃

 

Polychloroprene rubber

、有极好的弹性,高度的扯断力,耐磨性能好。 1. Excellent elasticity, high breaking force and good wear resistance. 、耐一般低浓度酸、碱、盐介质的腐蚀,不耐氧化介质的腐蚀。 2. Resistant to the corrosion of general low-concentration acid, alkali and salt media, and not resistant to the oxidation media.

需特殊订货 80 ℃ 120 ℃ need special order

Water, sewage, weak abrasive mud.

Polyurethane rubber

、耐磨性能极强。 1. Extremely strong abrasion resistance.

、耐腐蚀性能较差。 2. Poor corrosion resistance.

80 ℃

Neutral and strong abrasion slurry, coal slurry, mud

Selection of inlet protection flange and ground flange or ground ring

Flange type

Scope of application

Ground flange or ground ring

Suitable for non-conductor pipes, such as plastic pipes, but not required for sensors with ground electrodes.

Import protection flange

Use when the media has strong abrasion.

Selection of electrodes

Electrode material

Corrosion and wear resistance

Stainless steel 0Crl8Nil2M02Ti

Used for industrial water, domestic water, sewage and other weakly corrosive media, suitable for petroleum, chemical, steel and other industrial sectors, as well as municipal, environmental protection and other fields.

Hastelloy B

It has good corrosion resistance to hydrochloric acid at all concentrations below the boiling point, and it is also resistant to the corrosion of non-chlorinated acids, alkalis, and non-oxidizing salts such as sulfuric acid, phosphoric acid, hydrofluoric acid, and organic acids.

Hastelloy C

" 、、 Cu"下或含其他氧化剂的腐蚀,如高于常温的次氯酸盐溶液、海水的腐蚀 Resistant to corrosion by non-oxidizing acids, such as nitric acid, mixed acids, or mixed media of chromic acid and sulfuric acid, and also resistant to oxidative salts such as: Fe , " ,, Cu" or containing other oxidants, such as above normal temperature Corrosion of hypochlorite solution and seawater

titanium

Resistant to seawater, various chlorides and hypochlorites, oxidizing acids including fuming sulfuric acid, organic acids, and alkalis. ++、 Cu ++时,则腐蚀大为降低。 It is not resistant to the corrosion of relatively pure reducing acids such as sulfuric acid and hydrochloric acid, but if the acid contains oxidants such as nitric acid, Fc ++, Cu ++, the corrosion is greatly reduced.

Tantalum

Has excellent corrosion resistance and is very similar to glass. 以下的硫酸的腐蚀。 With the exception of hydrofluoric acid, fuming sulfuric acid, and alkali, it can withstand the corrosion of almost all chemical media including boiling point hydrochloric acid, nitric acid, and sulfuric acid below 50 ° C. Diao in alkali; corrosion resistance.

Platinum / titanium alloy

Resistant to almost all chemical media, but not suitable for aqua regia and ammonium salts.

Stainless steel coated tungsten carbide

For non-corrosive and abrasive media.

Note: Due to the variety of media, its corrosivity is affected by complex factors such as temperature, concentration, and flow rate, so this table is for reference only. The user should make his own choice according to the actual situation, and if necessary, should perform the corrosion resistance test of the material to be selected, such as the hanging sheet test.

Model selection of DXLDE series intelligent flowmeter

◆ Range confirmation

智能型防腐电磁流量计 被测介质流速以2~4m/s为宜,在特殊情况下,最低流速应不小于0.2m/s,最高应不大于8m/s。 In general, the intelligent anti-corrosion electromagnetic flowmeter for industrial use should measure the flow velocity of 2 ~ 4m / s. In special cases, the minimum flow rate should be no less than 0.2m / s and the highest should be no more than 8m / s. If the medium contains solid particles, the commonly used flow rate should be less than 3m / s to prevent excessive friction between the lining and the electrode. For viscous fluids, the flow rate can be selected to be greater than 2m / s. A larger flow rate helps to automatically eliminate stickiness on the electrode. The role of stagnation is conducive to improving measurement accuracy.

流量计 口径D的大小,其值由下式计算: Under the condition that the range Q has been determined, the size of the flowmeter diameter D can be determined according to the above range of the flow velocity V , and the value is calculated by the following formula:

Q = πD2V / 4
Q: Flow rate (㎡ / h) D: Pipe inner diameter V: Flow rate (m / h)

的量程Q应大于预计的最大流量值,而正常的流量值以稍大于流量计满量程刻度的50为宜。 The range Q of the intelligent anti-corrosion flowmeter should be greater than the expected maximum flow value, and the normal flow value should be slightly larger than 50 of the full scale of the flowmeter.

智能型防腐电磁流量计 参考流量范围 ◆ DXLDE series intelligent anti-corrosion electromagnetic flowmeter reference flow range

Caliber mm

Flow range m3 / h

Caliber mm

Flow range m3 / h

φ15

0.06 ~ 6.36

φ450

5722.65 57.235722.65

φ20

11.3 0.11 to 11.3

φ500

7065.00 70.657065.00

φ25

17.66 0.18 to 17.66

φ600

10173.6 101.7410173.6

φ40

45.22 0.4545.22

φ700

13847.4 138.4713847.4

φ50

70.65 0.7170.65

φ800

18086.4 180.8618086.4

φ65

119.4 1.19119.4

φ900

22890.6 228.9122890.6

φ80

180.86 1.81180.86

φ1000

40694.4 406.9440694.4

φ100

282.60 2.83282.60

φ1200

55389.6 553.9055389.6

φ150

635.85 6.36635.85

φ1600

72345.6 723.4672345.6

φ200

1130.4 11.31130.4

φ1800

91562.4 915.6291562.4

φ250

176.25. 17.66176.25.

φ2000

113040.00 1130.4113040.00

φ300

2543.40 25.432543.40

φ2200

136778.4 1367.78136778.4

φ350

3461.85 34.623461.85

φ2400

162777.6 1627.78162777.6

φ400

4521.6 45.224521.6

φ2600

191037.6 1910.38191037.6

智能型防腐电磁流量计 选型 Selection of DXLDE series intelligent anti-corrosion electromagnetic flowmeter

model

caliber

 

DXLDE

15 ~ 2600

 

 

Code

Installation form

 

Y

One-piece

F

Split

 

Code

Converter model

ZA

Round

ZB

Square

 

Code

output signal

I.4

4 ~ 20mA

f

Frequency 1KHz

Rs

Serial communication (485)

C

Control output

 

Code

Explosion-proof requirements

N

No explosion

EX

Explosion-proof (only for split type)

 

Code

Medium temperature

T1

≤65 ℃

T2

≤120 ℃

T3

≤180 ℃ (only applicable to split type)

 

Code

Lining material

NE

Neoprene (≤65 ℃)

PTFE

Polytetrafluoroethylene (≤189 ℃)

PVC

Polyvinyl chloride (≤70 ℃)

 

Code

Electrode material

316L

stainless steel

HC

Hastelloy C

HB

Hastelloy B

Ti

titanium

Ta

Tantalum