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4800 Electromagnetic Flowmeter

Electromagnetic Flow meter consisted of 4800-type flow sensor and 4800-type smart converter 4800-E Sanitary type supporting. It applies to measure (is fit for the measurement of ) the volume flow of conductive medium including the acid, alkali, salt solution, slurry, pulp, paper pulp, waste water.

Application :

● tap water

● sewage treatment

● Metallurgy

● Chemical

● Textile

● Food

● Paper

● pharmaceutical 

Advantages
01It is the volume flow of liquid and solid two-phase fluid (It is used to measure the conductivity which is greater (bigger) than 5μs/cm of closed pipeline that and the volume flow of fluid and solid two-phase fluid flow rate.
02And it is not affected by the temperature of the liquid, viscosity, density, pressure, liquid-solid composition, conductivity of liquid. It has high accuracy and stable working ability.
03It can be used to measure the fluid medium of other conductive liquid or liquid-solid two-phase flow after the calibration just ordinary water without any additional calibration.
Resources

Holykell-Measuring Instrument

Technical Data

Item

Technical parameter

Main power

AC220V 50HZ/DC24V/DC12V/3.3V battery power supply

Power consumption

<15W (Supporting power consumption with sensors )

 

Display and buttons

Display in Chinese and English, can display instantaneous flow, accumulated flow and alarm display (excitation open circuit alarm, empty pipe alarm, flow over limit alarm). Four membrane touch switches for data setting

Counter

Forward total, reverse total

 

Output signal

Analog

output

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. The external power supply is not greater than 35V, and the maximum current of the collector when it is turned on is 50mA

 

 

Alarm output

Two-way open collector alarm output with photoelectric isolation transistor. 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 output pulse upper limit can reach 5000CP/S.

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. The external power supply is not greater than 35V, and the maximum current of the collector when conducting is 50mA

Matching accuracy

0.5%

Damping time constant

Continuous variable from 0~100s (90%) time grading optional

Communication

Optional RS232C or RS485 serial communication interface, HART communication protocol

Loss of power

The internal design of the instrument has a power-off clock, which can store 16 power-off records (10 years) (need to be customized)

Protection class

IP65

Explosion-proof mark

Ex d ia [ia Ga] q IIC T6 Gb

 

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