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  • 会员价: 0 RMB
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    发布时间: 2019 - 01 - 15
    TDSP-2800GI Split Pipe Wall-mounted Ultrasonic Flowmeter Application Field:Process control: food, pharmacy, chemical industry, electronics, water treatment, cold and hot water supply, oil supply pipeline, central air conditioning systemEnvironmental protection of resources: civil and industrial water supply, water conservancy and hydropower, agricultural irrigation, clean water and sewage treatment, sewage monitoringPetrochemical industry: crude oil production, crude oil transportation, refined oil transportation, oil terminal trade settlementTDSP-2800GI Split Pipe Wall-mounted Ultrasonic Flowmeter Product Features:Fast response speed, suitable for flow run-to-run control, liquid quantitative distributionTwo-channel design, redundant judgment, greatly improved reliabilityIt is suitable for strong corrosion, high viscosity meter display, liquid crystal display and P degree occasions.Low flow rate, good performance, no pressure lossFlow measurement is not affected by fluid density, temperature, pressure and conductivity.The required upstream and downstream straight pipe sections are short, the transducer has good viscosity resistance, and regular cleaning is not required.Self-diagnosis technologyVarious output modes, such as secondary C communication monitoringTDSP-2800GI split pipe wall-mounted ultrasonic flowmeter technical parameters:Technical indicatorsApplicationMeasurable liquid: most single phase liquid. less than 5% particles or bubbles.Pipe size: DN50~DN2000Pipeline materials: stainless steel, carbon steel.Operating ambient temperature:-40℃ ~+60℃Measured fluid temperature:-40℃ ~+120℃Explosion-proof grade: explosion-proof ExidII BT4Intrinsic safety type: exiaibt4Intrinsic Safety Type: ExiaII BT4 Body and Hazardous Area of DustPerformance indexVelocity range: nominal accuracy velocity range 0.1 ~ 12.5 m/sMeasurement accuracy: 0.5%Sensitivity: 0.001 m/s.Measurement repeatability: 0.2%Electronic boxProtection grade: IP67Power supply: 12~24V DC, 0.5A 。Electrical interface: waterproof head 2×M20×1.5LCD display segment code typeKeyboard input: 4 keysInput and output signals: serial communication RS485/RS232, MODBUS protocol.Flow output: self-powered 4-20mA output, or 0-5V pulse output.
  • 会员价: 0 RMB
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    发布时间: 2019 - 01 - 15
    TDSP-2800GJ Split Insert Wall-mounted Ultrasonic Flowmeter Application Field:Process control: food, pharmacy, chemical industry, electronics, water treatment, cold and hot water supply, oil supply pipeline, central air conditioning systemEnvironmental protection of resources: civil and industrial water supply, water conservancy and hydropower, agricultural irrigation, clean water and sewage treatment, sewage monitoringPetrochemical industry: crude oil production, crude oil transportation, refined oil transportation, oil terminal trade settlementTDSP-2800GJ Separately Inserted Wall-mounted Ultrasonic Flowmeter Product Features:Fast response speed, suitable for flow run-to-run control, liquid quantitative distributionTwo-channel design, redundant judgment, greatly improved reliabilityIt is suitable for strong corrosion, high viscosity meter display, liquid crystal display and P degree occasions.Low flow rate, good performance, no pressure lossFlow measurement is not affected by fluid density, temperature, pressure and conductivity.The required upstream and downstream straight pipe sections are short, the transducer has good viscosity resistance, and regular cleaning is not required.Self-diagnosis technologyVarious output modes, such as secondary C communication monitoringTDSP-2800GJ Split Insertion Wall-mounted Ultrasonic Flowmeter Technical Parameters:Technical indicatorsApplicationMeasurable liquid: most single phase liquid. less than 5% particles or bubbles.Pipe size: DN50~DN2000Pipeline materials: stainless steel, carbon steel.Operating ambient temperature:-40℃ ~+60℃Measured fluid temperature:-40℃ ~+120℃Explosion-proof grade: explosion-proof ExidII BT4Intrinsic safety type: exiaibt4Intrinsic Safety Type: ExiaII BT4 Body and Hazardous Area of DustPerformance indexVelocity range: nominal accuracy velocity range 0.1 ~ 12.5 m/sMeasurement accuracy: 0.5%Sensitivity: 0.001 m/s.Measurement repeatability: 0.2%Electronic boxProtection grade: IP67Power supply: 12~24V DC, 0.5A 。Electrical interface: waterproof head 2×M20×1.5LCD display segment code typeKeyboard input: 4 keysInput and output signals: serial communication RS485/RS232, MODBUS protocol.Flow output: self-powered 4-20mA output, or 0-5V pulse output.
  • 会员价: 0 RMB
    市场价: 0 RMB
    发布时间: 2019 - 01 - 15
    1. Product introductionTDSP double-channel external clamp ultrasonic flowmeter is a double-channel ultrasonic flow measurement product adopting American technology. Each channel can achieve measurement accuracy. Double-channel redundancy greatly improves the accuracy and stability of the flowmeter, and overcomes the defect that mono-channel products are not suitable for flow field changes and have low accuracy and unstable flow.  The measurement principle is still based on the time delay method. Due to the optimized design of two channels, the influence of turbulence randomness on measurement is overcome to a great extent, and the adaptability and measurement accuracy to different working conditions are greatly improved, making small flow measurement more guaranteed.In addition, the TDSP double-channel external clamp ultrasonic flowmeter uses advanced digital signal processing technology to make the dead angle of sensor design very small, and it is not easy to accumulate impurities such as rust and scale, thus solving the biggest hidden danger of interference of common ultrasonic flowmeter by impurities such as iron filings and welding slag, and being especially suitable for water quality with high impurity content.TDSP double-channel external clamp ultrasonic flowmeter uses a high-speed DSP processor to make the response speed of the measurement system less than 0.1 second, which is more than 10 times faster than the common flowmeter. It can be used as a quantitative control measurement standard, especially suitable for flow measurement of high viscosity oil, chemical products and ultra-pure water. It can also be connected with two temperature sensors as calorimeters.  When more heat function is needed, GFM can also be used as the flow measurement part of calorimeter and connected to the calorimeter through 4-20mA as the flow measurement part.1.2 Product Features★ Flow measurement adopts double-channel ultrasonic technology to ensure measurement accuracy and stability;★ Adopt high-speed DSP processor, with response speed reaching 0.1 second;★ Advanced digital signal processing technology, the measurement is not interfered by iron filings, welding slag and other impurities;★ Different sensors can be connected to solve the problem of multi-bubble application on site1.3 Technical Indicators Technical indicatorsApplicationMeasurable liquidMost single-phase liquids. Less than 5% particles or bubbles.Pipe materialStainless steel, PVC, carbon steel.Operating ambient temperature-40℃~ +60℃Measured fluid temperature-20℃~ +120℃Explosion-proof gradeFlameproof ExidII BT4Intrinsically safe exiaibt4Dangerous areas of body and dustPerformance indexVelocity rangeNominal accuracy flow rate range 0.1 ~ 12.5 m/smeasurement accuracy±0.5%Sensitivity0.001m/s.Measurement repeatability±0.2%Electronic boxthe protection gradesIP65Power supply12~24V DC, 0.5A.Electrical interfaceWaterproof head2×M20×1.5 LCD display128*64 dot matrix liquid crystalKeyboard input4 keysInput and output signalSerial communicationRS485, MODBUS RTU Flow outputSelf-powered 4-20mA output or 0-24V pulse output
  • 会员价: 0 RMB
    市场价: 0 RMB
    发布时间: 2019 - 01 - 15
    Introduction of TDSP-2800U Dual Channel Ultrasonic Flowmeter;TDSP-2800U dual-channel ultrasonic flowmeter is a dual-channel ultrasonic flow measurement product using PhoTime technology in the United States.The method overcomes the defect that the monophonic ultrasonic flowmeter is not suitable for low flow field change precision and unstable flow rate, and the measurement principle is still based on the time delay method for measurement.Due to the optimized design of two channels, this ultrasonic flowmeter overcomes the influence of turbulence randomness on measurement to a great extent, and greatly improves the adaptability and measurement accuracy to different working conditions.Small flow measurement with ultrasonic flowmeter is more guaranteed.  It can be used as a measurement standard for quantitative control.  It is especially suitable for flow measurement of high viscosity oils, chemical products and ultra-pure water.Product Features of TDSP-2800U Dual Channel Ultrasonic Flowmeter;Applicable pipelines: DN10~DN32;;Measurement accuracy: 0.5%;Optionally, a meter with head or a digital display can be installed on the control cabinet.Flange connection or sanitary card clamp connectionApplication of TDSP-2800U Dual Channel Ultrasonic Flowmeter Products;Water treatment and cold and hot water supplyWhere high precision is requiredLaboratory flow measurementBatch control systemSanitary mediumHigh viscosity mediumOil supply lineTDSP-2800U type dual-channel ultrasonic flowmeter applicable medium:Conditions: less than 5% single-phase liquid with particles or bubbles.Medium: agricultural water, industrial water and sewage;  Crude oil, gasoline, fuel oil, diesel oil, heavy oil, engine oil and other oils;  Organic substances such as alcohol, propane, butane, etc.;  Weak acid, weak base, salt and other chemical reagents.Technical Parameters of TDSP-2800U Dual Channel Ultrasonic Flowmeter;  Power supply  DC 18 ~ 36 V1A;  Ac 100-240V,0.5A  Pipe material  Stainless steel  Connection mode  Flange connection or clamp connection  measurement accuracy  ±0.3%、±0.5%  Repeatability  0.2%  Velocity range  0.1~12.5m/s  response speed  1 millisecond Sensitivity  0.001m/s  output signal  Current 4 ~ 20mA;  Pulse 0 ~ 24V;  Frequency 0 ~ 2000 Hz  Communication  RS485  MODBUS Protocol  Operating ambient temperature  -40℃~+60℃ Medium temperature  -40℃~+120℃ pipeline pressure  Standard: 1.0MPa, specially customizable Electrical interface  Waterproof head 2×M20×1.5
  • 会员价: 0 RMB
    市场价: 0 RMB
    发布时间: 2019 - 01 - 15
    Brief Introduction of TDSP-2800E Dual Channel Ultrasonic Flowmeter Products;TDSP-2800E Dual-channel Ultrasonic Flowmeter is a dual-channel ultrasonic flow measurement product using PhoTime technology in the United States.The method overcomes the defect that the monophonic ultrasonic flowmeter is not suitable for low flow field change precision and unstable flow rate, and the measurement principle is still based on the time delay method for measurement.Due to the optimized design of two channels, this ultrasonic flowmeter overcomes the influence of turbulence randomness on measurement to a great extent, and greatly improves the adaptability and measurement accuracy to different working conditions.Small flow measurement with ultrasonic flowmeter is more guaranteed.  It can be used as a measurement standard for quantitative control.  It is especially suitable for flow measurement of high viscosity oils, chemical products and ultra-pure water.Product Features of TDSP-2800E Dual Channel Ultrasonic Flowmeter;Applicable pipelines: DN10~DN32;;Measurement accuracy: 0.5%;Optionally, a meter with head or a digital display can be installed on the control cabinet.Flange connection or sanitary card clamp connectionApplication of TDSP-2800E Dual Channel Ultrasonic Flowmeter Products;Water treatment and cold and hot water supplyWhere high precision is requiredLaboratory flow measurementBatch control systemSanitary mediumHigh viscosity mediumOil supply lineTDSP-2800E type dual-channel ultrasonic flowmeter applicable medium:Conditions: less than 5% single-phase liquid with particles or bubbles.Medium: agricultural water, industrial water and sewage;  Crude oil, gasoline, fuel oil, diesel oil, heavy oil, engine oil and other oils;  Organic substances such as alcohol, propane, butane, etc.;  Weak acid, weak base, salt and other chemical reagents.Technical parameters of TDSP-2800E dual-channel ultrasonic flowmeter:  Power supply  18~36VDC,1A Pipe material  Stainless steel  Connection mode  Flange connection or clamp connectionmeasurement accuracy  ±0.3%、±0.5% Repeatability  0.2% Velocity range  0.1~12.5m/s  response speed Sensitivity  0.001m/s  output signal  Current 4 ~ 20mA;  Pulse 0 ~ 24V;  Frequency 0 ~ 2000 Hz  Communication  RS485  MODBUS Protocol  Operating ambient temperature  -40℃~+60℃  Medium temperature  -40℃~+120℃  pipeline pressure  Standard: 1.0MPa, specially customizable  Electrical interface  Waterproof head2×M20×1.5
  • 会员价: 0 RMB
    市场价: 0 RMB
    发布时间: 2019 - 01 - 15
    Brief Introduction of Integrated Electromagnetic Flowmeter Products;Intelligent electromagnetic flowmeter is an electromagnetic induction type flow meter with nominal diameter ranging from 10 to 3000. It is a series of electromagnetic flowmeter products integrating intelligence, small size, light weight, multifunction, high precision and high reliability.  It consists of sensor and intelligent converter.The intelligent electromagnetic flowmeter is suitable for measuring liquid-solid two-phase fluid containing solid particles or fibers due to its smooth straight pipe with a measurement channel that is an open flow detection piece and is not easy to block.  At the same time, the electromagnetic flowmeter does not generate pressure loss caused by flow detection, and the resistance of the meter is only the resistance along the pipeline of the same length, so that the energy-saving effect is remarkable, and the electromagnetic flowmeter is most suitable for large-diameter water supply pipelines requiring low resistance loss;  The volume flow measured by electromagnetic flowmeter is not affected obviously by the changes of fluid density, viscosity, temperature, pressure and conductivity (as long as it is above a certain threshold value).  Compared with most other flow meters, the front straight pipe section requires less.  Electromagnetic flowmeter has a large measuring range, usually 20: 1 ~ 50: 1, with a wide optional flow range.  Its caliber range is wider than that of other types of flow meters, ranging from a few millimeters to 3 meters.  It can measure both positive and negative bidirectional flow rate and pulsating flow rate as long as the pulsating frequency is much lower than the excitation frequency.  The instrument output is linear in nature;  It is easy to select the material variety of the contact piece with the fluid, and can be applied to corrosive fluids and other advantages.Suitable media for integrated electromagnetic flowmeter:Conditions: Liquid with conductivity greater than 5μs/cm;  The conductivity of demineralized water should be greater than 20μs/cm.Medium: agricultural water, industrial water and sewage;  Salt, strong acid, strong alkali solution;  Mud, pulp, coal slurry, pulp two-phase body.Main Functions of Integrated Electromagnetic Flowmeter:★ Flow monitoring;★ Power failure metering function;★ Batch control function;★ Alarm output of upper and lower limit of instantaneous quantity;★ infrared hand-held operation keyboard;★ Automatically detect battery capacity, empty pipe and excitation current;★ Output 4 ~ 20mA signal and frequency signal corresponding to instantaneous quantity;★ RS485, RS232, PROFIBS or GPRS communication can be selected;Integrated Electromagnetic Flowmeter Application Industry:Chemical industry, environmental protection, textile, metallurgy, mining, medicine, paper making, water supply, food, sugar making, brewing, irrigation water and sewage treatment.  测量原理  法拉­第电磁感应定律  公称通径  DN10...2000(3/8…80')  连接方式  法兰连接  材    质  衬里:天然橡胶、氯丁橡胶、聚氨脂橡胶、硅氟橡胶、PTFA、PFA  电极:316L/哈氏B-4/哈氏C-2/钛/钽/铂铱  法兰:碳钢(标准)、不锈钢(可选)  电极形式  二电极;三电极  测量介质   电导率大于5μs/cm的液体(软化水大于20μs/cm)  测量精度  ±0.3%/±0.5%  重复性  ±0.1%  介质温度  衬里不同能承受的温度不一样,详见衬里选择表  压力等级  DN10~DN50:PN40;    DN50~DN100:PN25;  DN125~DN200:PN16;   DN200~DN600:PN10;其它可特殊定做。  测量范围  0.3~12m/s  流向方向  正向或反向  传感器上的箭头为正向 转换器类型  PTE200型:一体式开关电源24V或220V供电;  PTE300型:分体式开关电源24V或220V供;  PTE201型:一体式电池供电型,只带脉冲输出,可选GPRS通讯;  PTE301型:分体式电池供电型,只带脉冲输出,可选GPRS通讯。显示  显示屏:8位LCD带背光液晶显示  显示内容:正向累积、反向累积、总累积、                      瞬时流量、流速、空管报警、励磁报警  流速单位:L/h、L/m、L/s、  瞬时流量单位:m3/h、m3/m、m3/s  累积流量单位:m3、L语言  中文或英文(其它语言可定制)电源  电压范围:交流(85~250)VAC或直流(20~24)VDC或电池  功率:小于20W模拟量输出  0~10mA(负载0~1.5KΩ)  4~20mA(负载0~750KΩ)数字频率输出  输出范围:1~5000HZ  电气隔离:光电隔离,隔离电压:1000VDC  输出驱动:场效应管输出,最高承受电压36VDC,最大负载250mA数字脉冲输出  输出脉冲当量:0.001~1.000 m3/cp  输出脉冲宽度:0.001~1.000 Ltr/cp  电气隔离:光电隔离,隔离电压:1000VDC  输出驱动:场效应管输出,最高承受电压36VDC,最大负载250mA报警输出  报警输出点:上限报警、下限报警  电气隔离:光电隔离,隔离电压:1000VDC  输出驱动:达林顿管输出,最高承受电压36VDC,最大负载250mA通    讯  Modbus(RS485或RS232接口),E-REMOTE(HART),PROFIBS,GPRS自动检测功能  流体空管检测报警  励磁电流检测报警  电池容量检测报警(电池供电型)特殊功能  掉电计时功能:自动记录仪表系统电源间断时间,补算漏计流量  小时总量记录功能:以小时为单位记录流量总量,适用于分时计量控制  红外手持操作键盘:远距离非接触操盘转换器所有功能防护等级  标准:IP65  可选:IP68(分体式、电池供电可选)防爆等级  标准:无防爆  可选:隔爆(ExdⅡCT4)电气接口   2×M20×1.5工作环境  环境温度:-10℃~+60℃  相对湿度:5%~90%
  • 会员价: 0 RMB
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    发布时间: 2019 - 01 - 15
    Brief Introduction of Split Electromagnetic Flowmeter Products;Intelligent electromagnetic flowmeter is an electromagnetic induction type flow meter with nominal diameter ranging from 10 to 3000. It is a series of electromagnetic flowmeter products integrating intelligence, small size, light weight, multifunction, high precision and high reliability.  It consists of sensor and intelligent converter.The intelligent electromagnetic flowmeter is suitable for measuring liquid-solid two-phase fluid containing solid particles or fibers due to its smooth straight pipe with a measurement channel that is an open flow detection piece and is not easy to block.  At the same time, the electromagnetic flowmeter does not generate pressure loss caused by flow detection, and the resistance of the meter is only the resistance along the pipeline of the same length, so that the energy-saving effect is remarkable, and the electromagnetic flowmeter is most suitable for large-diameter water supply pipelines requiring low resistance loss;  The volume flow measured by electromagnetic flowmeter is not affected obviously by the changes of fluid density, viscosity, temperature, pressure and conductivity (as long as it is above a certain threshold value).  Compared with most other flow meters, the front straight pipe section requires less.  Electromagnetic flowmeter has a large measuring range, usually 20: 1 ~ 50: 1, with a wide optional flow range.  Its caliber range is wider than that of other types of flow meters, ranging from a few millimeters to 3 meters.  It can measure both positive and negative bidirectional flow rate and pulsating flow rate as long as the pulsating frequency is much lower than the excitation frequency.  The instrument output is linear in nature;  It is easy to select the material variety of the contact piece with the fluid, and can be applied to corrosive fluids and other advantages.Suitable media for split electromagnetic flowmeter:Conditions: Liquid with conductivity greater than 5μs/cm;  The conductivity of demineralized water should be greater than 20μs/cm.Medium: agricultural water, industrial water and sewage;  Salt, strong acid, strong alkali solution;  Mud, pulp, coal slurry, pulp two-phase body.Main functions of split electromagnetic flowmeter:★ Flow monitoring;★ Power failure metering function;★ Batch control function;★ Alarm output of upper and lower limit of instantaneous quantity;★ infrared hand-held operation keyboard;★ Automatically detect battery capacity, empty pipe and excitation current;★ Output 4 ~ 20mA signal and frequency signal corresponding to instantaneous quantity;★ RS485, RS232, PROFIBS or GPRS communication can be selected;Split Electromagnetic Flowmeter Application Industry:Chemical industry, environmental protection, textile, metallurgy, mining, medicine, paper making, water supply, food, sugar making, brewing, irrigation water and sewage treatment.Split Electromagnetic Flowmeter Application Industry:SensorPrinciple of measurementFaraday's Law of Electromagnetic InductionNominal diameterDN10...2000Connection modeflange couplingMaterialLining: natural rubber, neoprene, polyurethane rubber, silicofluororubber, PTFA, PFAElectrode: 316L/ Hastelloy B-4/ Hastelloy C-2/ Titanium/Tantalum/Platinum-IridiumFlange: carbon steel (standard), stainless steel (optional)Electrode formTwo electrodes;  Three electrodesMeasuring mediumLiquid with conductivity greater than 5μs/cm (demineralized water greater than 20μs/cm)measurement accuracy±0.3%/±0.5%Repeatability±0.1%Medium temperatureDifferent linings can bear different temperatures. Please refer to the lining selection table for details.Pressure ratingDN10~DN50:PN40; DN50~DN100:PN25;DN125~DN200:PN16; DN200~DN600:PN10;Other items can be specially made to order.measuring range0.3~12m/sDirection of flowForward or reverseThe arrow on the sensor is positive Converter TypePTE200: Integrated switching power supply 24V or 220V;PTE300: split switching power supply 24V or 220V;PTE201: Integrated battery-powered type, with pulse output only, GPRS communication optional;PTE301: Split battery powered, with pulse output only, GPRS communication optional.displayDisplay screen: 8-bit LCD with backlight LCDDisplay contents: forward accumulation, reverse accumulation, total accumulation,Instantaneous flow rate, flow rate, empty pipe alarm, excitation alarmFlow rate units: L/h, L/m, L/s,Instantaneous flow units: m3/h, m3/m, m3/sCumulative flow units: m3, lLanguageChinese or English (other languages can be customized)Power supplyVoltage range: AC (85 ~ 250) VAC or DC (20 ~ 24) VDC or batteryPower: less than 20WAnalog output0 ~ 10ma (load 0 ~ 1.5kΩ)4 ~ 20mA (load 0 ~ 750 kΩ)Digital frequency outputOutput range: 1 ~ 5000 HzElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: FET output, maximum withstand voltage 36VDC, maximum load 250mADigital pulse outputOutput pulse equivalent: 0.001~1.000 m3/cpOutput pulse width: 0.001 ~ 1.000ltr/cpElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: FET output, maximum withstand voltage 36VDC, maximum load 250mAAlarm outputAlarm output points: upper limit alarm and lower limit alarmElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: darlington tube output, maximum withstand voltage 36VDC, maximum load 250mACommunicationModbus(RS485/RS232),E-REMOTE(HART),PROFIBS,GPRSAutomatic detection functionFluid Empty Pipe Detection AlarmExcitation current detection alarmBattery capacity detection alarm (battery powered)Special functionPower failure timing function: automatically records the interruption time of the instrument system power supply, and supplements the leakage meter flowRecord function of total amount of hours: record the total amount of flow in units of hours, applicable to time-sharing metering control.Infrared Handheld Operating Keyboard: All Functions of Remote Contactless Manipulatorthe protection gradesStandard: IP65Optional: IP68 (split, battery-powered optional)Explosion-proof gradeStandard: No explosion proofOptional: flameproof (ExdⅡCT4)Electrical interface2×M20×1.5Working environmentAmbient temperature:-10℃ ~+60℃Relative humidity: 5% ~ 90%
  • 会员价: 0 RMB
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    发布时间: 2019 - 01 - 15
    Brief Introduction of Battery-powered Electromagnetic Flowmeter Products;Intelligent electromagnetic flowmeter is an electromagnetic induction type flow meter with nominal diameter ranging from 10 to 3000. It is a series of electromagnetic flowmeter products integrating intelligence, small size, light weight, multifunction, high precision and high reliability.  It consists of sensor and intelligent converter.The intelligent electromagnetic flowmeter is suitable for measuring liquid-solid two-phase fluid containing solid particles or fibers due to its smooth straight pipe with a measurement channel that is an open flow detection piece and is not easy to block.  At the same time, the electromagnetic flowmeter does not generate pressure loss caused by flow detection, and the resistance of the meter is only the resistance along the pipeline of the same length, so that the energy-saving effect is remarkable, and the electromagnetic flowmeter is most suitable for large-diameter water supply pipelines requiring low resistance loss;  The volume flow measured by electromagnetic flowmeter is not affected obviously by the changes of fluid density, viscosity, temperature, pressure and conductivity (as long as it is above a certain threshold value).  Compared with most other flow meters, the front straight pipe section requires less.  Electromagnetic flowmeter has a large measuring range, usually 20: 1 ~ 50: 1, with a wide optional flow range.  Its caliber range is wider than that of other types of flow meters, ranging from a few millimeters to 3 meters.  It can measure both positive and negative bidirectional flow rate and pulsating flow rate as long as the pulsating frequency is much lower than the excitation frequency.  The instrument output is linear in nature;  It is easy to select the material variety of the contact piece with the fluid, and can be applied to corrosive fluids and other advantages.Suitable media for battery-powered electromagnetic flowmeter:Conditions: Liquid with conductivity greater than 5μs/cm;  The conductivity of demineralized water should be greater than 20μs/cm.Medium: agricultural water, industrial water and sewage;  Salt, strong acid, strong alkali solution;  Mud, pulp, coal slurry, pulp two-phase body.Main functions of battery-powered electromagnetic flowmeter:★ Flow monitoring;★ Power failure metering function;★ Batch control function;★ Alarm output of upper and lower limit of instantaneous quantity;★ infrared hand-held operation keyboard;★ Automatically detect battery capacity, empty pipe and excitation current;★ Output 4 ~ 20mA signal and frequency signal corresponding to instantaneous quantity;★ RS485, RS232, PROFIBS or GPRS communication can be selectedBattery powered electromagnetic flowmeter application industry:Chemical industry, environmental protection, textile, metallurgy, mining, medicine, paper making, water supply, food, sugar making, brewing, irrigation water and sewage treatment.Battery powered electromagnetic flowmeter application industry:Sensor  Principle of measurementFaraday's Law of Electromagnetic Induction  Nominal diameter  DN10...2000Connection mode flange coupling  MaterialLining: natural rubber, neoprene, polyurethane rubber, silicofluororubber, ptfa, pfaElectrode: 316L/ Hastelloy B-4/ Hastelloy C-2/ Titanium/Tantalum/Platinum-IridiumFlange: carbon steel (standard), stainless steel (optional)Electrode formTwo electrodes;  Three electrodes Measuring mediumLiquid with conductivity greater than 5μs/cm (demineralized water greater than 20μs/cm) measurement accuracy  ±0.3%/±0.5%Repeatability  ±0.1% Medium temperature Different linings can bear different temperatures. Please refer to the lining selection table for details. Pressure rating  DN10~DN50:PN40;DN50~DN100:PN25;  DN125~DN200:PN16;DN200~DN600:PN10;Other items can be specially made to order. Velocity range  0.3~12m/sDirection of flow  Forward or reverse The arrow on the sensor is positive Converter Type PTE200: Integrated switching power supply 24V or 220V;PTE300: split switching power supply 24V or 220V;PTE201: Integrated battery-powered type, with pulse output only, GPRS communication optional;PTE301: Split battery powered, with pulse output only, GPRS communication optional.displayDisplay screen: 8-bit LCD with backlight LCDDisplay contents: forward accumulation, reverse accumulation, total accumulation,Instantaneous flow rate, flow rate, empty pipe alarm, excitation alarm Flow rate units: L/h, L/m, L/s,Instantaneous flow units: m3/h, m3/m, m3/sCumulative flow units: m3, lLanguage Chinese or English (other languages can be customized)Power supply Voltage range: AC (85 ~ 250) VAC or DC (20 ~ 24) VDC or battery Power: less than 20WAnalog output0 ~ 10ma (load 0 ~ 1.5kΩ)4 ~ 20mA (load 0 ~ 750 kΩ)Digital frequency output Output range: 1 ~ 5000 HzElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: FET output, maximum withstand voltage 36VDC, maximum load 250mADigital pulse output Output pulse equivalent: 0.001~1.000 m3/cpOutput pulse width: 0.001 ~ 1.000ltr/cpElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: FET output, maximum withstand voltage 36VDC, maximum load 250mAAlarm outputAlarm output points: upper limit alarm and lower limit alarmElectrical isolation: photoelectric isolation, isolation voltage: 1000VDCOutput drive: darlington tube output, maximum withstand voltage 36VDC, maximum load 250mACommunicationModbus(RS485 or RS232 interface), E-REMOTE(HART),PROFIBS, GPRSAutomatic detection function Fluid Empty Pipe Detection AlarmExcitation current detection alarmBattery capacity detection alarm (battery powered)Special function Power failure timing function: automatically records the interruption time of the instrument system power supply, and supplements the leakage meter flow  Record function of total amount of hours: record the total amount of flow in units of hours, applicable to time-sharing metering control. Infrared Handheld Operating Keyboard: All Functions of Remote Contactless Manipulatorthe protection gradesStandard: IP65Optional: IP68 (split, battery-powered optional)Explosion-proof grade Standard: No explosion proof Optional: flameproof (ExdⅡCT4)Electrical interface  2×M20×1.5Working environment  Ambient temperature:-10℃ ~+60℃  Relative humidity: 5% ~ 90%
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    TDSP-2800GI Split Pipe Wall-mounted Ultrasonic Flowmeter Application Field:Process control: food, pharmacy, chemical industry, electronics, water treatment, cold and hot water supply, oil supply pipeline, central air conditioning systemEnvironmental protection of resources: civil and industrial water supply, water conservancy and hydropower, agricultural irrigation, clean water and sewage treatment, sewage monitoringPetrochemical industry: crude oil production, crude oil transportation, refined oil transportation, oil terminal trade settlementTDSP-2800GI Split Pipe Wall-mounted Ultrasonic Flowmeter Product Features:Fast response speed, suitable for flow run-to-run control, liquid quantitative distributionTwo-channel design, redundant judgment, greatly improved reliabilityIt is suitable for strong corrosion, high viscosity meter display, liquid crystal display and P degree occasions.Low flow rate, good performance, no pressure lossFlow measurement is not affected by fluid density, temperature, pressure and conductivity.The required upstream and downstream straight pipe sections are short, the transducer has good viscosity resistance, and regular cleaning is not required.Self-diagnosis technologyVarious output modes, such as secondary C communication monitoringTDSP-2800GI split pipe wall-mounted ultrasonic flowmeter technical parameters:Technical indicatorsApplicationMeasurable liquid: most single phase liquid. less than 5% particles or bubbles.Pipe size: DN50~DN2000Pipeline materials: stainless steel, carbon steel.Operating ambient temperature:-40℃ ~+60℃Measured fluid temperature:-40℃ ~+120℃Explosion-proof grade: explosion-proof ExidII BT4Intrinsic safety type: exiaibt4Intrinsic Safety Type: ExiaII BT4 Body and Hazardous Area of DustPerformance indexVelocity range: nominal accuracy velocity range 0.1 ~ 12.5 m/sMeasurement accuracy: 0.5%Sensitivity: 0.001 m/s.Measurement repeatability: 0.2%Electronic boxProtection grade: IP67Power supply: 12~24V DC, 0.5A 。Electrical interface: waterproof head 2×M20×1.5LCD display segment code typeKeyboard input: 4 keysInput and output signals: serial communication RS485/RS232, MODBUS protocol.Flow output: self-powered 4-20mA output, or 0-5V pulse output.
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    TDSP-2800GJ Split Insert Wall-mounted Ultrasonic Flowmeter Application Field:Process control: food, pharmacy, chemical industry, electronics, water treatment, cold and hot water supply, oil supply pipeline, central air conditioning systemEnvironmental protection of resources: civil and industrial water supply, water conservancy and hydropower, agricultural irrigation, clean water and sewage treatment, sewage monitoringPetrochemical industry: crude oil production, crude oil transportation, refined oil transportation, oil terminal trade settlementTDSP-2800GJ Separately Inserted Wall-mounted Ultrasonic Flowmeter Product Features:Fast response speed, suitable for flow run-to-run control, liquid quantitative distributionTwo-channel design, redundant judgment, greatly improved reliabilityIt is suitable for strong corrosion, high viscosity meter display, liquid crystal display and P degree occasions.Low flow rate, good performance, no pressure lossFlow measurement is not affected by fluid density, temperature, pressure and conductivity.The required upstream and downstream straight pipe sections are short, the transducer has good viscosity resistance, and regular cleaning is not required.Self-diagnosis technologyVarious output modes, such as secondary C communication monitoringTDSP-2800GJ Split Insertion Wall-mounted Ultrasonic Flowmeter Technical Parameters:Technical indicatorsApplicationMeasurable liquid: most single phase liquid. less than 5% particles or bubbles.Pipe size: DN50~DN2000Pipeline materials: stainless steel, carbon steel.Operating ambient temperature:-40℃ ~+60℃Measured fluid temperature:-40℃ ~+120℃Explosion-proof grade: explosion-proof ExidII BT4Intrinsic safety type: exiaibt4Intrinsic Safety Type: ExiaII BT4 Body and Hazardous Area of DustPerformance indexVelocity range: nominal accuracy velocity range 0.1 ~ 12.5 m/sMeasurement accuracy: 0.5%Sensitivity: 0.001 m/s.Measurement repeatability: 0.2%Electronic boxProtection grade: IP67Power supply: 12~24V DC, 0.5A 。Electrical interface: waterproof head 2×M20×1.5LCD display segment code typeKeyboard input: 4 keysInput and output signals: serial communication RS485/RS232, MODBUS protocol.Flow output: self-powered 4-20mA output, or 0-5V pulse output.
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    1. Product introductionTDSP double-channel external clamp ultrasonic flowmeter is a double-channel ultrasonic flow measurement product adopting American technology. Each channel can achieve measurement accuracy. Double-channel redundancy greatly improves the accuracy and stability of the flowmeter, and overcomes the defect that mono-channel products are not suitable for flow field changes and have low accuracy and unstable flow.  The measurement principle is still based on the time delay method. Due to the optimized design of two channels, the influence of turbulence randomness on measurement is overcome to a great extent, and the adaptability and measurement accuracy to different working conditions are greatly improved, making small flow measurement more guaranteed.In addition, the TDSP double-channel external clamp ultrasonic flowmeter uses advanced digital signal processing technology to make the dead angle of sensor design very small, and it is not easy to accumulate impurities such as rust and scale, thus solving the biggest hidden danger of interference of common ultrasonic flowmeter by impurities such as iron filings and welding slag, and being especially suitable for water quality with high impurity content.TDSP double-channel external clamp ultrasonic flowmeter uses a high-speed DSP processor to make the response speed of the measurement system less than 0.1 second, which is more than 10 times faster than the common flowmeter. It can be used as a quantitative control measurement standard, especially suitable for flow measurement of high viscosity oil, chemical products and ultra-pure water. It can also be connected with two temperature sensors as calorimeters.  When more heat function is needed, GFM can also be used as the flow measurement part of calorimeter and connected to the calorimeter through 4-20mA as the flow measurement part.1.2 Product Features★ Flow measurement adopts double-channel ultrasonic technology to ensure measurement accuracy and stability;★ Adopt high-speed DSP processor, with response speed reaching 0.1 second;★ Advanced digital signal processing technology, the measurement is not interfered by iron filings, welding slag and other impurities;★ Different sensors can be connected to solve the problem of multi-bubble application on site1.3 Technical Indicators Technical indicatorsApplicationMeasurable liquidMost single-phase liquids. Less than 5% particles or bubbles.Pipe materialStainless steel, PVC, carbon steel.Operating ambient temperature-40℃~ +60℃Measured fluid temperature-20℃~ +120℃Explosion-proof gradeFlameproof ExidII BT4Intrinsically safe exiaibt4Dangerous areas of body and dustPerformance indexVelocity rangeNominal accuracy flow rate range 0.1 ~ 12.5 m/smeasurement accuracy±0.5%Sensitivity0.001m/s.Measurement repeatability±0.2%Electronic boxthe protection gradesIP65Power supply12~24V DC, 0.5A.Electrical interfaceWaterproof head2×M20×1.5 LCD display128*64 dot matrix liquid crystalKeyboard input4 keysInput and output signalSerial communicationRS485, MODBUS RTU Flow outputSelf-powered 4-20mA output or 0-24V pulse output
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    Introduction of TDSP-2800U Dual Channel Ultrasonic Flowmeter;TDSP-2800U dual-channel ultrasonic flowmeter is a dual-channel ultrasonic flow measurement product using PhoTime technology in the United States.The method overcomes the defect that the monophonic ultrasonic flowmeter is not suitable for low flow field change precision and unstable flow rate, and the measurement principle is still based on the time delay method for measurement.Due to the optimized design of two channels, this ultrasonic flowmeter overcomes the influence of turbulence randomness on measurement to a great extent, and greatly improves the adaptability and measurement accuracy to different working conditions.Small flow measurement with ultrasonic flowmeter is more guaranteed.  It can be used as a measurement standard for quantitative control.  It is especially suitable for flow measurement of high viscosity oils, chemical products and ultra-pure water.Product Features of TDSP-2800U Dual Channel Ultrasonic Flowmeter;Applicable pipelines: DN10~DN32;;Measurement accuracy: 0.5%;Optionally, a meter with head or a digital display can be installed on the control cabinet.Flange connection or sanitary card clamp connectionApplication of TDSP-2800U Dual Channel Ultrasonic Flowmeter Products;Water treatment and cold and hot water supplyWhere high precision is requiredLaboratory flow measurementBatch control systemSanitary mediumHigh viscosity mediumOil supply lineTDSP-2800U type dual-channel ultrasonic flowmeter applicable medium:Conditions: less than 5% single-phase liquid with particles or bubbles.Medium: agricultural water, industrial water and sewage;  Crude oil, gasoline, fuel oil, diesel oil, heavy oil, engine oil and other oils;  Organic substances such as alcohol, propane, butane, etc.;  Weak acid, weak base, salt and other chemical reagents.Technical Parameters of TDSP-2800U Dual Channel Ultrasonic Flowmeter;  Power supply  DC 18 ~ 36 V1A;  Ac 100-240V,0.5A  Pipe material  Stainless steel  Connection mode  Flange connection or clamp connection  measurement accuracy  ±0.3%、±0.5%  Repeatability  0.2%  Velocity range  0.1~12.5m/s  response speed  1 millisecond Sensitivity  0.001m/s  output signal  Current 4 ~ 20mA;  Pulse 0 ~ 24V;  Frequency 0 ~ 2000 Hz  Communication  RS485  MODBUS Protocol  Operating ambient temperature  -40℃~+60℃ Medium temperature  -40℃~+120℃ pipeline pressure  Standard: 1.0MPa, specially customizable Electrical interface  Waterproof head 2×M20×1.5
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    Brief Introduction of TDSP-2800E Dual Channel Ultrasonic Flowmeter Products;TDSP-2800E Dual-channel Ultrasonic Flowmeter is a dual-channel ultrasonic flow measurement product using PhoTime technology in the United States.The method overcomes the defect that the monophonic ultrasonic flowmeter is not suitable for low flow field change precision and unstable flow rate, and the measurement principle is still based on the time delay method for measurement.Due to the optimized design of two channels, this ultrasonic flowmeter overcomes the influence of turbulence randomness on measurement to a great extent, and greatly improves the adaptability and measurement accuracy to different working conditions.Small flow measurement with ultrasonic flowmeter is more guaranteed.  It can be used as a measurement standard for quantitative control.  It is especially suitable for flow measurement of high viscosity oils, chemical products and ultra-pure water.Product Features of TDSP-2800E Dual Channel Ultrasonic Flowmeter;Applicable pipelines: DN10~DN32;;Measurement accuracy: 0.5%;Optionally, a meter with head or a digital display can be installed on the control cabinet.Flange connection or sanitary card clamp connectionApplication of TDSP-2800E Dual Channel Ultrasonic Flowmeter Products;Water treatment and cold and hot water supplyWhere high precision is requiredLaboratory flow measurementBatch control systemSanitary mediumHigh viscosity mediumOil supply lineTDSP-2800E type dual-channel ultrasonic flowmeter applicable medium:Conditions: less than 5% single-phase liquid with particles or bubbles.Medium: agricultural water, industrial water and sewage;  Crude oil, gasoline, fuel oil, diesel oil, heavy oil, engine oil and other oils;  Organic substances such as alcohol, propane, butane, etc.;  Weak acid, weak base, salt and other chemical reagents.Technical parameters of TDSP-2800E dual-channel ultrasonic flowmeter:  Power supply  18~36VDC,1A Pipe material  Stainless steel  Connection mode  Flange connection or clamp connectionmeasurement accuracy  ±0.3%、±0.5% Repeatability  0.2% Velocity range  0.1~12.5m/s  response speed Sensitivity  0.001m/s  output signal  Current 4 ~ 20mA;  Pulse 0 ~ 24V;  Frequency 0 ~ 2000 Hz  Communication  RS485  MODBUS Protocol  Operating ambient temperature  -40℃~+60℃  Medium temperature  -40℃~+120℃  pipeline pressure  Standard: 1.0MPa, specially customizable  Electrical interface  Waterproof head2×M20×1.5
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    涡轮流量计产品简介: 涡轮流量计基于力矩平衡原理,属于速度式流量仪表。传感器有结构简单、轻巧、精度高、重复性好、反应灵敏,安装维护使用方便等特点,广泛用于石油、化工、冶金、供水、造纸等行业,是流量计和节能的理想仪表。传感器与显示仪表配套使用,适用于测量封闭管道中且无纤维、颗粒等杂质的液体。若与具有特殊功能的显示仪表配套,还可以进行定量控制、超量报警等。选用本产品的防爆型式,可在有爆炸危险的环境中使用。传感器适用于在工作温度下粘度小于5×10-6m2/s的介质,对于粘度大于小5×10-6m2/s的液体,要对传感器进行实液标定后使用。 涡轮流量计产品特点: ★   高精确度, 一般可达±1%、±0.5%,高精度型可达±0.2%★   重复性好,短期重复性可达0.05%~0.2%,正是由于具有良好的重复性,如经常校准或在线校准可得到极高的精确度,在贸易结算中是优先选用的流量计;★   输出脉冲频率信号,适于总量计量及与计算机连接,无零点漂移,抗干扰能力强。★   测量范围度宽,中大口径可达1:20,小口径为1:10;★   结构紧凑轻巧,安装维护方便,流通能力大;★   适用于高压测量,仪表表体上不必开孔,易制成高压型仪表。  涡轮流量计技术参数:    仪表口径及连接方式  4、6、10、15、20、25、32、40(可螺纹连接)  15、20、25、32、40、50、65、80、100、125、150、200  测量介质  液体、气体  精度等级  ±1.0%、±0.5%  量程比  1:10;1:15;1:20  仪表材质  304不锈钢、316L、普通不锈钢  被测介质温度(℃)  -20~+120℃  环境条件  -10~+60℃  输出信号  两线制4~20mA;脉冲  供电电源  24VDC;3.6V锂电池  信号传输线  屏蔽电缆3×0.3(三线制);2×0.3(二线制)  传输距离  ≤1000m  信号线接口  基本型:贺斯曼接头;  防爆型:内螺纹M20×1.5  防爆等级  基本型:非防爆产品;  防爆型:ExdⅡBT6  防护等级  IP65
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    涡轮流量计产品简介:涡轮流量计基于力矩平衡原理,属于速度式流量仪表。传感器有结构简单、轻巧、精度高、重复性好、反应灵敏,安装维护使用方便等特点,广泛用于石油、化工、冶金、供水、造纸等行业,是流量计和节能的理想仪表。传感器与显示仪表配套使用,适用于测量封闭管道中且无纤维、颗粒等杂质的液体。若与具有特殊功能的显示仪表配套,还可以进行定量控制、超量报警等。选用本产品的防爆型式,可在有爆炸危险的环境中使用。传感器适用于在工作温度下粘度小于5×10-6m2/s的介质,对于粘度大于小5×10-6m2/s的液体,要对传感器进行实液标定后使用。 涡轮流量计产品特点:★ 高精确度, 一般可达±1%、±0.5%,高精度型可达±0.2%★ 重复性好,短期重复性可达0.05%~0.2%,正是由于具有良好的重复性,如经常校准或在线校准可得到极高的精确度,在贸易结算中是优先选用的流量计;★ 输出脉冲频率信号,适于总量计量及与计算机连接,无零点漂移,抗干扰能力强。★ 测量范围度宽,中大口径可达1:20,小口径为1:10;★ 结构紧凑轻巧,安装维护方便,流通能力大;★ 适用于高压测量,仪表表体上不必开孔,易制成高压型仪表。  涡轮流量计技术参数:仪表口径及连接方式4、6、10、15、20、25、32、40(可螺纹连接)15、20、25、32、40、50、65、80、100、125、150、200测量介质液体、气体精度等级±1.0%、±0.5%量程比1:10;1:15;1:20仪表材质304不锈钢、316L、普通不锈钢被测介质温度(℃)-20~+120℃环境条件-10~+60℃输出信号两线制4~20mA;脉冲供电电源24VDC;3.6V锂电池信号传输线屏蔽电缆3×0.3(三线制);2×0.3(二线制)传输距离≤1000m信号线接口基本型:贺斯曼接头;防爆型:内螺纹M20×1.5防爆等级基本型:非防爆产品;防爆型:ExdⅡBT6防护等级IP65
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Cause Analysis of Vortex Flowmeter Damage for Steam Measurement-Sensor
Fang Shi's Instrument Technician Through Years of Experience and Technical Summary in Application of Vortex Flowmeter for Steam MeasurementThis article provides an analysis of the causes of damage to vortex flowmeter sensors for steam measurement (field application cases):A business specializing in dry cleaning has several sub-workshops. The thermal power plant supplies steam to them through a main pipe and installs a differential pressure vortex mass flowmeter as a total meter.In order to facilitate independent accounting, each workshop has installed a vortex flowmeter with temperature and pressure compensation function as a sub-meter.This has been working for nearly two years and the measurement is still accurate.  The sum of the measurements in each sub-meter is approximately equal to the reading in the general meter.  There was a sudden increase in the reading error between the sum of the sub-meters and the total meter last month.After investigation, under the conditi...
2019 - 01 - 16
Cause Analysis of Vortex Flowmeter Damage for Steam Measurement-Sensor
Fang Shi's Instrument Technician Through Years of Experience and Technical Summary in Application of Vortex Flowmeter for Steam MeasurementThis article provides an analysis of the causes of damage to vortex flowmeter sensors for steam measurement (field application cases):A business specializing in dry cleaning has several sub-workshops. The thermal power plant supplies steam to them through a main pipe and installs a differential pressure vortex mass flowmeter as a total meter.In order to facilitate independent accounting, each workshop has installed a vortex flowmeter with temperature and pressure compensation function as a sub-meter.This has been working for nearly two years and the measurement is still accurate.  The sum of the measurements in each sub-meter is approximately equal to the reading in the general meter.  There was a sudden increase in the reading error between the sum of the sub-meters and the total meter last month.After investigation, under the conditi...
2019 - 01 - 16
Performance summary of TF180C-U integrated ultrasonic flowmeter.
TF180C-U integrated ultrasonic flowmeter applicable occasions:1. Process control: chemical industry, pharmacy, food, water treatment, oil products, semiconductors, etc2. Suitable for medium and small pipelines.  Stainless steel, carbon steel and other metal pipes and plastic pipes with a diameter of 1 to 6 inches (25mm to 150mm pipes).TF180C-U integrated ultrasonic flowmeter product features:1. The measurement of flowmeter does not touch liquid at all, and there is no need to interrupt the measured process or cut off the pipeline;2. No moving parts, low maintenance cost and long service life;3. Large measurable flow range and good long-term stability;4. The additional flow resistance to the fluid is extremely low, thus saving the operation energy of industrial system equipment;5. For corrosive liquid, ultra-pure water, non-conductive liquid and other applications, it has obvious advantages over electromagnetic flowmeter.Features of PT-SCAN software included with TF180C-U:1. It is ...
2019 - 01 - 16
The 14th Guangzhou Valve+Fluid Engineering+Process Industry Process Equipment Exhibition
Our company will participate in the 14th Guangzhou Valve+Fluid Engineering+Process Industry Process Equipment Exhibition soonTime: May 18-20, 2011 (Wednesday-Friday)Address: China Import and Export Fair, Pazhou Exhibition HallFLOWEXPO is a professional event in the field of fluids (liquids and gases), which was founded in 1997 and is held annually in Guangzhou.The audience and exhibitors invited by FLOWEXPO come from more than 40 countries and regions. The audience includes buyers from China, the United States, Germany, France, Britain, Italy, Australia, Canada, Japan, Denmark, Spain, Norway, South Korea, Singapore, India, Pakistan, Iran, Kuwait, Iraq, Vietnam and other countries and regions, including major engineering projects, industrial users, distributors, agents, traders, producers, import and export companies, international trading companies and other buyers.FLOWEXPO is famous for its 'professional exhibition, matching audience and remarkable effect', which is unanimousl...
2019 - 01 - 16
March 2011 15th Guangzhou International Industrial Automation Technology and Equipment Exhibition
The 15th Guangzhou International Industrial Automation Technology and Equipment Exhibition in 2011Time: 9 -11 March 2011Location: Pazhou Exhibition Hall of China Import and Export Commodities FairOrganizer: China Foreign Trade Center (Group) (Canton Fair Exhibition Company)Frankfurt exhibition co., GermanyGuangdong Automation Society Guangzhou Automation SocietyCo-organizer: Fenghua Pneumatic Industry Association of Guangzhou Instrument and Meter AssociationHydraulic and Pneumatic Branch of Guangdong Mechanical Engineering SocietySupport unit: Guangdong Provincial Science and Technology Association, Automation Society of South-Central Six Provinces (Regions)Organizer: China foreign trade Guangzhou exhibition corporation Germany meisaigao Frankfurt exhibition co., ltdThe biggest characteristics of SIAF in 2011 are:★ 100,000 square meters of industrial pageant gathering in Guangzhou;★ Germany's SPS, the world's largest automation exhibition, will join in with all its strength and...
2019 - 01 - 16
Interference Measures of Ultrasonic Flowmeter Against Inverter
With the gradual improvement of industrial production automation technology and the gradual increase of frequency converter application scope, electromagnetic interference caused by higher harmonic of frequency converter is becoming more and more serious.Especially in high-precision instruments and microelectronic control systems, electromagnetic interference is particularly prominent.If the fault that the ultrasonic flowmeter does not display instantaneous flow is caused by the electromagnetic wave of the frequency converter interfering with the signal intensity transmitted by the signal line of the flowmeter,In order to reduce the influence of frequency converter on signal strength to a greater extent, the following measures should be taken:1. Reasonable layout.  Reasonable layout shall be made during installation. Flowmeter and data transmission line shall be as far away from frequency converter as possible.The control line should be as far away from the frequency converter as ...
2019 - 01 - 16
The Birth of Two-channel Ultrasonic Flowmeter
Ultrasonic flowmeter technology first appeared in the 1980s. Compared with other flow measurement technologies, it is a relatively new measurement technology.Most of the early models are analog, while the digital ultrasonic flowmeter has strong stability and adaptability, but it requires high frequency, high precision and high response signal acquisition and processing capabilities.It was not until recent years that it began to be widely used with the rapid development of integrated circuit technology and became the fastest growing measurement technology in the field of flow measurement.And there is a tendency to gradually replace other types of flow meters in many applications.  The main advantages of ultrasonic flow measurement technology are non-contact, no flow resistance, large measuring flow velocity range, less maintenance, flexible use and long service life.Especially in the application of corrosive, high purity, non-conductive and other fluids, it has incomparable advanta...
2019 - 01 - 16
History of Ultrasonic Flowmeter
In 1928, the German developed the first ultrasonic flowmeter and obtained a patent.  Ultrasonic flowmeter has a history of 75 years.In 1955, it was first applied to Marcussen flowmeter to measure aviation combustion oil, which is a liquid flowmeter composed of two groups of probes (transducers) based on acoustic circulation method.In 1958, a A.L.H-ERDRICH et al. invented the refractive probe. their research can further eliminate the phase distortion caused by the reverberation of the pipe wall, and also provide a theoretical basis for clamping outside the pipe.After entering the 1970s:Due to the development of integrated circuit and phase-locked loop technology, ultrasonic flowmeter has been able to overcome the previous fatal weaknesses of low accuracy, slow response, poor stability and reliability, so that practical ultrasonic flowmeter has been developed.In the past 20 years, especially in the past 10 years, the rapid development of processing technology and micro-processing te...
2019 - 01 - 16
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