Integrated LDG electromagnetic flowmeter LDG-150 explosion-proof electromagnetic flowmeter

Description :

　　This product has a flow rate range of 0.2-10m/s, with no obstructed flow components or pressure loss inside the measuring tube. The straight pipe section requires low requirements, and the converter can be integrated or separated from the sensor. The converter uses a 16 bit high-performance microprocessor, LCD display, convenient parameter setting, and reliable programming. The flowmeter is a bidirectional measurement system with three built-in integrators and multiple outputs: current, pulse, digital communication, etc HART。 This converter adopts a novel excitation method, with low power consumption, stable zero point, and high accuracy.

　　1、 Characteristics:

　　1. There are movable components and no flow barriers, which will not cause pressure loss, wear, blockage, or other issues.

　　2. It is a volumetric flow measurement instrument that is not affected by the temperature, viscosity, density, and conductivity (within a certain range) of the measured medium during the measurement process.

　　3. The range of electromagnetic flowmeter is wide, up to 1:100. In addition, electromagnetic flow meters are only proportional to the average flow velocity of the measured medium, and are independent of axisymmetric flow states (laminar or turbulent).

　　4. No mechanical inertia, sensitive response, can measure instantaneous pulsating flow rate, and has good linearity. Therefore, the measurement signal can be directly converted linearly into a standard signal output using a converter. It can be indicated locally and transmitted over long distances.

　　2、 Technical parameters:

　　1. nominal pressure: ordinary DN (4-80) -4.0MPa; DN（100～150）—1.6MPa；

　　DN（200～1000）—1.0MPa； DN（1100～2000） —0.6MPa。

　　High pressure DN (4-80) -6.3MPa, 10 MPa, 16 MPa, 25 MPa, 32 MPa;

　　DN（100～150）—2.5 MPa，4.0 MPa，6.3 MPa，10 MPa，16 MPa；

　　DN（200～600）—1.6 MPa，2.5 MPa，4.0 MPa；

　　DN（700～1000）—1.6 MPa，2.5 MPa；

　　DN（1100～2000）—1.0 MPa，1.6MPa。

　　2. Accuracy level: 0.2, 0.5 (indication error)

　　3. Flow velocity range: (0.1-15) m/s

　　4. Fluid conductivity: ≥ 5uS/cm

　　5. Protection level: IP65 (waterproof type), IP68 (submersible type)

　　6. Fluid temperature: (-30~+180) ℃

　　7. Working environment: (-25~+55) ℃, 5%~95% RH

　　8. Connection method: flange connection (GB9119-1988) or ANSI standard

　　9. Output signal: (0-1) kHz, (4-20) mA, or (0-10) mA

　　10. Power supply: 220VAC, 50Hz or 24VDC

　　3、 Installation:

　　1. Like other flow meters, although the measurement range ratio of electromagnetic flow meters is 30:1, which is higher than vortex flow meters and differential pressure flow meters, it is also limited. Many customers often compare it with water meters when ordering a meter, thinking that it can measure very low flow rates. Generally, it can only measure 0.1m/s. Below this flow rate, electromagnetic flow meters are difficult to measure correctly. So in the initial stage of ordering, it is necessary to clarify the flow range. When placing an order, it is not possible to order according to the original pipeline diameter. The instrument diameter should be determined based on your actual flow rate.

　　2. Like other flow meters, electromagnetic flow meters also have requirements for straight pipelines before and after installation, although the requirements are lower than other types of flow meters. However, the key point is to meet the requirement of full pipe and then full pipe. Insufficient flow can easily cause the flowmeter to jump:

　　3. Like other flow meters, electromagnetic flow meters also have protection levels. Generally, the protection level for integrated flow meters is IP65, and for split type flow meters (for sensors) it is IP68. If customers have requirements for the installation environment of the instrument and the installation location is in underground manholes or other humid places, it is recommended that customers choose split type flow meters. To avoid selecting the wrong one and causing damage to the instrument.

　　4. It can measure corrosive liquids, but in the initial stage of ordering, customers need to provide the correct properties of other measuring media to avoid errors in electrode selection during the selection process, which may result in the sensor being scrapped during later use, causing inconvenience and economic losses to customers.

AfterSalesService :

• Integrated LDG electromagnetic flowmeter