A Variety Of Outputs In-Pipe Liquid Flow Measurement NYLD Pipeline
Type Electromagnetic Flow Meter
NYLL type electromagnetic flow meter is a kind of flow meter with
high accuracy and high reliability. It is used to measure the
volume flow of conductive liquids and slurries in closed pipes, and
is widely used in steel, electric power, petroleum, chemical, coal,
metallurgy, minerals, paper making, water supply and drainage,
food, medicine and other industries.
NYLD Electromagnetic Flow Meter Working Principle
The measurement principle is based on Faraday's law of
electromagnetic induction. That is: the conductive liquid in the
magnetic field for cutting magnetic lines of force movement, the
conductor induction electromotive force, E for: E = KBVD
D: the inner diameter of the measuring tube
K: instrumentation constants
V: measuring tube section of the average flow rate
B: magnetic induction strength
When measuring flow, the fluid flows through a magnetic field
perpendicular to the direction of flow. The flow of a conductive
fluid induces a voltage signal proportional to the average flow
rate (i.e., volume flow). The induced voltage signal is detected by
two electrodes in direct contact with the fluid and transmitted via
a cable to an amplifier, which is then converted into a uniform
current output signal.
NYLD Electromagnetic Flow Meter Technical Parameters
| Typical application | In-pipe liquid flow measurement |
| Antenna material | PFA(optional) |
| Power consumption | <15W (and sensor matching power consumption) |
| Counters | Positive total, negative total |
| Power supply | AC220V 50Hz /DC24V/3.6V |
| Environment temperature | -25~+60℃ |
| Process connection | flange (optional) |
| Damping time constant | Continuous variable from 0 to 100s (90%) time staging selectable |
| Protection level | IP67,IP68,IP65(optional) |
| Explosion-proof grade | Exia II CT5 Ga, Exd II CT5 Gb(optional) |
| Signal output | Analog output, frequency output, alarm output, pulse output |
NYLD Electromagnetic Flow Meter Design Feature
1. Measurement accuracy is not affected by changes in fluid
density, viscosity, temperature, pressure and conductivity. No
obstructive flow parts in the measuring tube, no pressure loss, and
low requirement for straight pipe section.
2. The converter adopts liquid crystal backlight display, which
makes it easy to read under direct sunlight or in dark rooms.
3. Infrared touch button to set parameters, in harsh environments
without opening the cover of the converter can be set safely.
4. The flow meter is a two-way measurement system, with three
accumulators inside: forward, reverse and total difference; can
display forward and reverse flow.
5. And has a variety of outputs: current, pulse, digital
communication, HART.
6. The converter has self-diagnostic alarm output, empty load
detection alarm output, flow rate upper and lower limit alarm
output, batch control and other functions.
7. Not only can be used for general process detection, but also for
the measurement of mineral pulp, pulp and paste liquid.
8. High pressure electromagnetic flow meter using PFA plus network
lining technology, high pressure resistance, negative pressure
resistance, specifically applied to petrochemical, mineral and
other industries.
9. Explosion-proof type meters can be used in the corresponding
explosion-proof places.
