详情描述

Overview:
    LRDSeriesElectromagnetic FlowmeterThe measurement principle is based on Faraday's Law of Electromagnetic Induction, and the main components of the sensor are: measuring tube, electrodes, excitation coil, core, and magnetic yoke shell.。Electromagnetic flowmeters are primarily used for measuring the volumetric flow of conductive liquids and slurry in closed pipes, including highly corrosive liquids such as acids, alkalis, and salts. They are widely applied in the production processes of various industries, such as petrochemicals, iron and steel metallurgy, water supply and drainage, irrigation, water treatment, environmental protection wastewater total control, papermaking, medicine, and food, for flow measurement and control. They are suitable for total volume measurement of conductive liquids.

Product Features:
1Programmable low-frequency rectangular wave excitation improves flow measurement stability with low power loss.
2Utilizing a 16-bit embedded microprocessor, fast computation speed and high precision.
3All-digital processing, strong anti-interference capability, reliable measurement, high accuracy, flow measurement range up to 1500:1.
4Ultra-low EMI switching power supply, suitable for a wide range of power voltage variations, and excellent EMC performance.
5Full Chinese menu operation, easy to use, simple to operate, and easy to learn and understand.
6High-resolution backlit LCD display
7Features bidirectional flow measurement and cumulative total function; offers bidirectional output for current and frequency.
8The unit features three accumulators that can separately display positive cumulative quantity, negative cumulative quantity, and difference cumulative quantity.
9、Features RS485 or RS232 digital communication signal output
10、With conductivity measurement capability, it can determine if the sensor is empty.
11、The constant current excitation current range is wide, compatible with different companies and types of electromagnetic flow sensors.
12、Features self-check and self-diagnostic functions;
13、Utilizing SMD components and surface mounting technology (SMT), the circuit offers high reliability.
14、The instrument features an internal design with a non-volatile clock, capable of recording up to 16 power-off times.

Primary Technical Data:
Complete unit and sensor technical dataStandard JB/T 9248-1999, Nominal Pipe Size 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000, Maximum Flow Rate 15 m/s, Accuracy ±0.5% (Flow Rate ≥ 1 m/s); ±3 mm/s (Flow Rate < 1 m/s) for DN10 to DN600, ±0.5% (Flow Rate ≥ 0.8 m/s); ±4 mm/s (Flow Rate < 0.8 m/s) for DN700 to DN3000, Fluid Conductivity ≥ 5 uS/cm, Nominal Pressure 4.0 MPa, 1.6 MPa, 1.0 MPa, 0.6 MPa, 6.3, 10 MPa, DN10 to DN80, DN100 to DN150, DN200 to DN1000, DN1200 to DN2000, Special Order Environment Temperature Sensor -25℃ to +60℃, Transmitter and Integrated Type -10℃ to +60℃, Lining Materials: PTFE, Chloroprene, Polyurethane, PTFE (F46), Woven PFA, Maximum Fluid Temperature: Integrated Type 70℃, Separated Type Chloroprene Lining 80℃; 120℃ (stated at order time), Polyurethane Lining 80℃, PTFE Lining 100℃; 150℃ (stated at order time), PTFE (F46) Woven PFA, Signal Electrode and Ground Electrode Materials: Stainless Steel 0Cr18Ni12M02Ti, Hastelloy C, Hastelloy B, Titanium, Tantalum, Platinum/Iridium Alloy, Stainless Steel Coated Carbide Electrode, Rake Mechanism DN300 to DN3000, Connection Flange Materials: Carbon Steel, Ground Flange Materials: Stainless Steel 1Cr18Ni9Ti, Imported Protection Flange Materials DN65 to DN150: Stainless Steel 1Cr18Ni9Ti, DN200 to DN600: Carbon Steel + Stainless Steel 1Cr18Ni9Ti, Shell Protection DN10 to DN3000: Separated Type Rubber or Polyurethane Lining Sensor IP65 or IP68, Other Sensors, Integrated Flow Meters and Separated Type Converters IP65, Spacing (Separated Type) Converter Distance from Sensor Generally Not Exceeding 100m.

Instrument selection
Range Confirmation
Typically, electromagnetic flow meters for general industrial use measure the flow velocity of the medium being tested.2～4m/sAdequate, in special cases, the minimum flow rate should not be less than0.2m/sNo more than8m/sIf the medium contains solid particles, the common flow rate should be less than3m/sTo prevent excessive friction between the liner and electrode; for viscous fluids, the flow rate can be chosen to be greater than2m/sHigher flow rates aid in automatically removing sticky substances from electrodes, benefiting the improvement of measurement accuracy.
In rangeQUnder the established conditions, proceed according to the aforementioned flow rate.VThe range determines the flow meter diameterDThe size, with a value calculated as follows:
                                                                                      Q=πD2V/4
Q:Flow rate (m³)/h） D:Pipe inner diameter VFlow Rate:m/s）
Electromagnetic Flow Meter RangeQThe capacity should exceed the anticipated maximum flow value, with the normal flow value slightly above the full scale of the flow meter.50Ago.

◆LRD Series Electromagnetic Flow Meters Reference Flow Range

Boremm

Flow Rangem3/h

Bore sizemm

Flow Rate Rangem3/h

φ100.16~2.5φ400250～4000

φ15

0.4~6

φ500

400～6000

φ20

0.6～12

φ600

600～10000

φ25

1.0～16

φ700

800～12000

φ321.6~25φ8001000～16000

φ40

2.5～40

φ900

1200～20000

φ50

4.0～60

φ1000

1600～25000

φ65

6.0～120

φ1200

2500～30000

φ80

10～160

φ1400

3000～50000

φ100

16～250

φ1600

3000～60000

φ12525~400φ18005000～60000

φ150

40～600

φ2000

6000～100000

φ200

60～1000

φ2200

1367.78～136778.4

φ250

100～1600

φ2400

1627.78～162777.6

φ300

160～2500

φ2600

1910.38～191037.6

φ350

200～3000




Product Range

Model

Bore size


LRD

10~2600



Code

Installation Type


Y

Integrated

F

Split-type


Code

Converter Model

ZA

Circular

ZB

Square (only applicable to split type)


Code

Output Signal

I.4

4~20mA

f

Frequency: 1 KHz

Rs

Serial Communication (485)

C

Control output


 Code

Explosion-proof requirements

 N

Non-explosive

EX

Explosion-proof (applicable only to split-type)


Code

Medium Temperature

T1

≤65℃

T2

≤120℃

T3

≤180℃ (Applicable only to split type)


Code

Lining Material

NE

Chloroprene rubber (≤65℃)

PVC

Polyvinyl Chloride (≤70℃)

PTFE

PTFE (≤180°C)


Code

Electrode Material

316L

Stainless Steel

HC

Hastelloy C

HB

Hastelloy B

Ti

Titanium

Ta

Tantalum

PtPlatinum

 


 

询价单

主题 *
内容 *
Your company's名
Contact person *
ContactPhone *
电子Email
验证码  
 点击确定代表您同意《服务条款》《隐私政策》