LG magnetic flow meter is suitable for conductive medium with conductivity greater than 5μS/cm and with wide nominal diameter range. It is also suitable for various conductive environment conditions where is no pressure loss, with a variety of power supply modes and signal output. It uses standard RS-485 serial communication interface and support international common standards MODBUS-RTU communication protocols, GPRS and other wireless and wired communication networking methods. It can also provide wireless meter reading system (computer management software and database) that can be accessed by remote network.
Made in China. brand DDTOP, model LD
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The plug-in electromagnetic flow meter is composed of two parts: a plug-in sensor and a converter. The sensor is composed of a rod, an electrode, an exciting coil, a ball valve, a sealing connecting rod, etc. The converter includes an internal circuit board and a converter housing, whose function is to amplify, process and calculate the flow signal, which can display instantaneous flow, cumulative flow, and output pulse, analog current and other signals for the measurement and control of fluid flow. LD-C series plug-in electromagnetic flow meter adopts intelligent converter, which not only has measurement, display and other functions, but also supports data remote transmission, wireless remote control, alarm and other functions.
Functional Characteristics
• Compared with the conventional pipe flowmeter, the one-time input cost is low and the installation cost is low.
• Fixed size installation type product structure is simple, reliable, simple debugging and maintenance.
• Online pluggable installation type products can be easily installed and disassembled under low pressure or with pressure without stopping water.
• Can be simply installed in the existing pipeline, very suitable for the existing pipeline to increase flow measurement and monitoring points.
• The measurement accuracy is not affected by the temperature, pressure, density, viscosity, electrical conductivity (conductivity greater than 20µs/cm) of the measured medium.
• Sensor has almost no pressure loss and very low energy loss. Especially suitable for large and medium diameter pipeline flow measurement and control.
• Adopt advanced low frequency square wave excitation, zero stability, strong anti-interference ability, reliable operation.
• Wide flow measurement range, the full scale flow rate in the measured pipeline can be arbitrarily set from 0.5m/s to 10m/s, and the output signal is linear with the flow.
Working principle
According to Faraday’s law of electromagnetic induction, an induced voltage (Um) is generated when a conductor moves in a magnetic field (B). Using the electromagnetic induction measurement method, the fluid medium is equivalent to a conductor in motion, and the direction of fluid flow (V) is perpendicular to the direction of electromagnetic field (B1, B2). Since the constant alternating magnetic field is generated by switching DC current with alternating polarity, the distance between the magnetic field intensity (B) and the electrode (E1, E2) is constant. The induced voltage (Um) is proportional to the fluid flow rate (v). In the signal converter, the induced signal voltage is amplified and converted into analog and digital signals, and the fluid velocity and flow rate are calculated according to the pipe diameter
Features
1.Excellent measurement repeatability and linearity
2.Good reliability and anti-jamming performance
3.Good pressure tightness
4.Low pressure loss measuring tube
5.Intelligent
6.Maintenance-free
Applications
Crude Oil Treatment: Oil Field Sewage
| Applicable nominal diameter | DN100-DN2000 |
| Accuracy of measurement | When the flow rate is measured,v>lm/s, the measurement accuracy is ±1.5%;
When measuring the flow rate, 0.1m/s<v≤1m/s, the measurement accuracy is ±2.5% |
| Measured velocity range | 0.5m/s~10m/s |
| Maximum temperature of the measured medium | 0°C~+70°C |
| Ambient temperature | -10°C~60°C |
| Dielectric conductivity | >30uS/cm |
| Nominal pressure | 0.6MPa、l.0MPa、1.6MPa 2.0Mpa(Customizable up to 4.0MPa ) |
| Electrode structure | 2 electrode structure |
| Electrode material | 316L/ Hastelloy C276 |
| Insert probe housing material | Measuring head PEEK 120℃ |
| Connecting format | General purpose G2 pipe threaded connection, flange connection optional |
| Sensor protection class | One body IP65 ,Polytype IP68 |
| Split type special signal cable | Standard configuration 10m , 100m Collected |
| Model | Suffix Code | Instruction | |||||||||
| LD- | □ | □ | — | □ | □ | □ | □ | □ | □ | □ | Electromagnetic flowmeter |
| Pressure rating | 0.6 | 0.6 MPa (DN700 ~ DN2000) | |||||||||
| 1.0 | 1.0 MPa (DN100-DN600) | ||||||||||
| 1.6 | 1.6 MPa (DN100-DN600) | ||||||||||
| 2.0 | 2.0 MPa (DN100-DN600) | ||||||||||
| 4.0 | 4.0 MPa (DN100-DN150) | ||||||||||
| TypeType | C | Plug-in | |||||||||
| Diameter | 100 | Pipe minimum dia（see dia table) | |||||||||
| 2000 | Pipe max dia（see dia table) | ||||||||||
| Installation | F | Flange installation | |||||||||
| L | G2 thread installation | ||||||||||
| Electrode material | K1 | Stainless 316L | |||||||||
| K2 | Hastelloy C(HC) | ||||||||||
| Lining material | F7 | PEEK project plastic | |||||||||
| Protection Level | W65 | IP65 | |||||||||
| W68 | IP68 | ||||||||||
| Converter installation | C3 | One body | |||||||||
| S | Polytype | ||||||||||
| Power Supply | P0 | 100VAC-220VAC 50Hz/60Hz | |||||||||
| PI | 22V D0 24VDC | ||||||||||
| Selected function | /T1 | 4-20mA output | |||||||||
| /TH1 | 4-20mA output+ HART communication function | ||||||||||
| /EX | Explosion proof | ||||||||||
| /KD1 | OLED Scree | ||||||||||
Selection example
The model of the electromagnetic flowmeter, LD-1.0C-300FK1F7W65C3P0/T1, indicates that the function of the instrument is: Working pressure 1.0MPa, plug-in structure, pipe diameter DN300, flange connection, stainless steel 316L electrode, PEEK lining, protection grade IP65, one-type machine structure (meter head and sensor installed together), working power AC 110/220V, 1 channel 4-20mA signal output.
You can request the necessary certificates, documentation, instructions and user manuals for DDTOP LD using the special form.
You can buy DDTOP LD in UK or Europe at a favourable price in «DOLCHETRADE» by leaving a request on the website, by phone +441225535040 or by email dolce@dolcetrade.com. DDTOP LD price are subject to change depending on exchange rates. We deliver instruments by transport companies in the United Kingdom and Europe.
See also: Beverage & milk flow meters, Chemical flow meters, Digital flow meters, Electromagnetic flow meters, Flanged flow meters, Flow meters, Flow meters 4 20ma, Flow meters for large pipes, Flow meters rs485, Flow meters with analog output, Flow meters with hart protocol, Flow meters with pulse output, High pressure flow meters, Mass flow meters, Sewage & Wastewater flow meters, Smart flow meters, Stainless steel flow meters, Wireless flow meters
