AFT Split Type Electromagnetic Flow Meter

Apure AFT Split Type Electromagnetic Flow Meter as the product of long-term experience in the field of flux instrument, has the functions of rapid response and output noise elimination Its design and quality control system have guaranteed the high accuracy and reliability of the product, and the application of lining makes the electromagnetic flowmeter applied more widely.

Split magnetic flow meter consists of two parts: the sensor and the converter, the sensor is installed in the measuring pipe, the converter is installed within 30 meters or 100 meters from the sensor, the two are connected by shielded cable.

Split electromagnetic flowmeter works on the same principle as the integrated electromagnetic flowmeter, which is based on Faraday’s law of electromagnetic induction. When the conductive liquid flows through the sensor installed in the pipe, a potential difference proportional to the flow rate will be induced in the magnetic field. Measuring electrodes are located in the magnetic field to measure the magnitude of the induced voltage. A converter is used to process the induced potential difference signal from the sensor and convert it to a standard current or voltage signal output.

Structure of split electromagnetic flow meter

• Sensor: the sensor is the core component of the electromagnetic flowmeter, consisting of measuring tube, electrode, excitation coil, iron core and yoke shell and so on. Measuring tube connected to the pipe, conductive liquid flow through the measuring tube will be induced in the magnetic field potential difference. The electrodes are located inside the measuring tube and are used to measure the induced potential difference. The excitation coil is energized to produce a magnetic field. The iron core and the yoke shell form a magnetic circuit, so that the magnetic field is evenly distributed in the measuring tube.
• Converter: The converter is used to process the induced potential difference signal output from the sensor and convert it to a standard current or voltage signal output. The converter is mainly composed of amplifier, filter, rectifier, A/D converter and other circuits.

Flow direction	positive and negative net flow
Measure extention ratio	150:1
Repeating erro	±0.1% of the meterage
Accuracy grade	pipeline style: 0.5 1.0
The temperature of themeasured medium	ordinary rubber underlay:-20~+60 High temperature rubber underlay:-20~+90 Polythene underlay: -30~+100 High temperature underlay:-30~+180
Rating work pressure	Pipeline style : DN10-65:≤2.5MPA DN80-DN150:≤1.6MPA DN200- DN 1200:≤1.0MP

Features

1. Easy installation and maintenance
   Split electromagnetic flowmeter sensor installed in the pipeline, the converter can be installed in the control room away from the pipeline, so easy to install and maintain. Integral electromagnetic flowmeter sensor and converter integrated design, installed in the pipeline, maintenance needs to dismantle the pipeline, more trouble.
2. Wide measuring range
   Split electromagnetic flowmeter measuring range is wide, up to 10:1 or even wider. One-piece electromagnetic flowmeter measuring range is generally 5:1.
3. High accuracy
   Split electromagnetic flowmeter measurement accuracy is high, generally up to 0.5 or higher. Integral electromagnetic flowmeter measurement accuracy is generally 1.0 level or higher.
4. Corrosion resistance
   Split electromagnetic flowmeter measuring element is not in direct contact with the fluid, so good corrosion resistance. One-piece electromagnetic flowmeter measuring element is directly exposed to the fluid, so the corrosion resistance is poor.
5. High safety
   Split electromagnetic flowmeter converter can be installed away from the pipeline control room, so high security. One-piece electromagnetic flowmeter converter installed in the pipeline, there are potential safety hazards.
6. Wide range of application
   Split electromagnetic flowmeter can be used to measure the flow of a variety of conductive liquids, including strong corrosive liquids, high-viscosity liquids, liquids with high suspended solids content. One-piece electromagnetic flowmeter has certain restrictions on the measured liquid.

Main technical parameter

Nominal path series DN(mm)

Piped PTFE Lining:10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600

Piped rubber lining:40 50 65 80 100 125 150 200 250 300 350 400 500 600 800 1000 1200