*LDG electromagnetic flowmeter LDG-400S electromagnetic flowmeter

Description :

　　The main structure of this product consists of a magnetic circuit system, measuring conduit, electrode, housing, lining, and converter. Advantages include: measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity; There are also advantages such as unobstructed flow components inside the measuring tube, no pressure loss, and high measurement accuracy.

　　1、 Characteristics:

　　The sensor adopts an integral welded structure with good sealing performance;

　　The structure is simple and reliable, with no moving parts inside and almost no pressure loss;

　　The measurement accuracy is not affected by changes in physical parameters such as pressure, temperature, density, viscosity, etc. of the measured medium; Accuracy is not sensitive to changes in velocity distribution (except for vortices);

　　Equipped with conductivity measurement function, it can distinguish whether the sensor is empty or not; Adopting a 16 bit embedded microprocessor, it has fast computing speed and high accuracy; There are two integrators inside, which display forward and reverse accumulation and difference accumulation respectively; Capable of outputting RS485 or RS232C digital communication signals;

　　Containing digital processing, strong resistance to F-interference, reliable measurement, and high accuracy; The instrument is sensitive, the output signal is proportional to the current, and the range ratio is wide;

　　Ultra low EMI switching power supply is suitable for a wide range of power supply voltage changes and has good EMC resistance performance; It includes Chinese and English menu operations, easy to use, simple to operate, easy to learn and understand.

　　2、 Technical parameters:

　　Instrument accuracy: pipeline type 0.5 level, 1.0 level; Insertion type 2.5 level

　　Measurement medium: various liquid and liquid-solid two-phase fluids with conductivity greater than 5 μ S/cm.

　　Flow velocity range: 0.2-8m/s

　　Work pressure: 1.6MPa

　　Environmental temperature: -40 ℃~50 ℃

　　Medium temperature: PTFE lining ≤ 180 ℃

　　Rubber material lining ≤ 65 ℃

　　3、 Installation requirements:

　　1. In terms of installation environment:

　　It is advisable to stay away from equipment with strong electromagnetic fields, such as large motors, transformers, and frequency converters.

　　The installation site should not have strong vibrations, the pipeline should be securely fixed, and the ambient temperature should not change significantly (to prevent solid-liquid two-phase changes).

　　The installation environment should be easy to install and maintain.

　　2. In terms of installation location:

　　The installation position must ensure that the pipeline is always filled with the measured liquid.

　　Choose a location with low liquid flow pulses, which should be away from local resistance components such as pumps, valves, and elbows.

　　When measuring biphasic (solid, liquid, gas, liquid) liquids, a location that is not prone to phase separation should be selected.

　　The inner diameter or circumference of the tested pipeline should be easy to measure, and the ellipticity should be small.

　　3. In terms of the length of the straight pipe section:

　　The length of the straight pipe section on the upstream side of the sensor installation pipeline should be greater than or equal to 10D, and the downstream side should not be less than 5D (D is the diameter of the measured pipeline).

　　4. Regarding flow control valves and regulating valves:

　　The flow control valve should be installed in the measured pipeline upstream of the sensor, and the flow control valve should be installed downstream of the sensor.

　　When it comes to flow, the flow control valve should usually be fully open.

AfterSalesService :

• Authentic LDG electromagnetic flowmeter