High Precision DN3~DN3000 Digital Mechanical Electromagnetic Water Flow Meter for Sale
An electromagnetic water meter is a type of flow meter that uses the principles of electromagnetic induction to measure the flow rate of water. This type of meter consists of a pipe that carries the water, with two electromagnetic coils positioned on either side and perpendicular to the direction of flow. When water flows through the pipe, it generates a voltage across the coils, which varies according to the velocity of the water. The meter calculates the flow rate by measuring the voltage, which is proportional to the volume of water passing through the meter. Electromagnetic water meters are commonly used in industrial and commercial applications, as they have high accuracy and can handle a wide range of flow rates.
Technical performance parameters:
main power |
AC220V 50Hz /DC24V/3.6V |
Power consumption |
<15W(Supporting power consumption with sensors) |
Display and buttons |
Display in Chinese and English, can display instantaneous flow, cumulative flow and alarm display (excitation open circuit alarm, empty pipe alarm, flow limit alarm). 4 membrane touch switches for data setting |
counter |
Forward total, reverse total |
output signal |
Analog output |
Two-way two-way, fully isolated 0~10mA/4~20mA |
Load resistance: 0 ~ 1.5kΩ when 0 ~ 10mA; 0 ~ 750Ω when 4 ~ 20mA |
Frequency output |
Forward and reverse flow output, the upper limit of output frequency can be set within 1 ~ 5000Hz. Open collector bidirectional output of transistor with photoelectric isolation. External power supply is not greater than 35V, the maximum current of the collector when conducting is 50mA. |
Alarm Output |
Two open-collector alarm outputs with photoelectric isolation transistors. The external power supply is not greater than 35V, and the maximum current of the collector when it is turned on is 250mA. Alarm status: fluid empty pipe, excitation disconnection, flow overrun. |
Pulse output |
Forward and reverse flow output, the upper limit of output pulse can reach 5000CP / S. The pulse equivalent is 0.0001 ~ 1.0m³ / P. The pulse width is automatically set to 20ms or square wave. Open collector output of transistor with photoelectric isolation. External power supply is not greater than 35V, the maximum current of the collector when conducting is 50mA |
Matching accuracy |
± 0.5% of market value, optional ± 0.2% or 1% of indicated value |
Damping time constant |
Continuous variable from 0 ~ 100s (90%) time grading optional |
communication |
Optional RS232C or RS485 serial communication interface, HART communication protocol, with anti-lightning protection |
Loss of power |
The internal design of the instrument has a power-off clock, which can store 16 drop-out records (10 years) |
Protection level |
IP65 |
Explosion-proof mark |
Exs[ia]ia||cT5 |