Electromagnetic Flow Meter

Flow meters:  Metal rotary flow meters, vortex flow meters and turbine flow meters, electromagnetic flow meters, oval gear wheel flow meters, precession vortex flow meters and roots flow meters.

 

A Flowmeter and Sensor
1 Application
1.1 Application Range
An electromagnetic flowmeter consists of a sensor and a transmitter. According to Faraday Law, the
flowmeter is used to measure volumetric flowrate for inductive liquids and pulps. Several output
signals are available. The main application range can be found in the following fields: chemical
industry, power generation and distribution, mine, water treatment, paper industry, pharmaceutical
industry, food and environmental protection.
1.2 Feature
a. The measurement is independence of the density, viscosity, temperature, pressure and
conductivity of the measured fluid.
b. No moving parts in the measuring tube. No pressure loss. Low requirement for the upstream
and downstream straight pipes. It has a special suitability for pulp measurement.
c. The analog output or frequency output is proportional to velocity of fluid. Wide measuring
range.
d. Magnetic field excitation with low frequency pulse. Low consumption. Stable zero point.
1.3 Application condition
Ambient temperature: -25℃～+55℃;
Relative humidity: 5%～100%;
Ambient pressure: 86～106kPa.
1.4 Process condition:
Conductivity of fluid: more than 5μs/cm;
Pressure : 4.0MPa(DN25～DN150)
1.6MPa(DN100～DN150)
1.0MPa(DN200～DN1000)
0.6MPa(DN1200～DN1600)
Operating temperature:
Remote version: <80℃（Soft rubber lining）
3
<60℃（Polyurethane lining）
<180℃（PTFE lining）
Compact version: <70℃
Power supply: 220V AC, 50Hz or DC 24V
2 Description and technical data
2.1 Standard:
The performance of the flowmeter is in accordance with JB/T 9248-1999 (China)
2.2 Description and technical data
2.2.1 Sensor
Nominal diameter :
25，（32），40，50，（65），80，100，（125），150，200，250，
300，350，400，450，500，600，700，800，900，1000，
1200，1400，1600
Note: The diameter with bracket has a lower priority.
Velocity range: 0.5m/s~15m/s
Accuracy: ± 0.2%, ± 0.3%, ± 0.5% of the measured value for
DN25~DN350;
±0.5% of the measured value for DN400~DN1600
Material of measuring tube: Stainless steel 1Cr18Ni9Ti
Material of lining: Soft rubber, polyurethane, PTFE
Material of electrode: Stainless steel 0Cr18Ni12Mo2Ti, Hastelloy B, Hastelloy C,
Titanium, Tantalum
Material of connecting flange: Carbon steel
Housing protection: IP68 ( only for RPmag62F remote version, sensor with Soft
rubber lining and polyurethane lining), IP65 (others)