Magnetic flap liquid level gauge

Overview of magnetic flap level gauge:
The magnetic flap level gauge (also called a magnetic float level gauge) is developed based on the buoyancy principle and magnetic coupling. When the liquid level in the measured container rises and falls, the magnetic float in the body tube of the liquid level gauge also rises and falls. The permanent magnet in the float is transmitted to the magnetic flip column indicator through magnetic coupling, driving the red and white flip columns to flip. When the liquid level rises, the flip column changes from white to red. When the liquid level drops, the flip column changes from red to white. The red and white junction of the indicator is the actual height of the liquid level inside the container, thus achieving a clear indication of the liquid level. It can be used in high temperature, explosion-proof, anti-corrosion, food and beverage and other occasions for local display or remote display and control of liquid level.
The series of magnetic flap liquid level gauges can achieve high sealing, leakage prevention, and safe and reliable liquid level measurement under high temperature, high pressure, high viscosity, and strong corrosive conditions. The whole process of measurement has no blind areas and eye-catching displays. , the reading is intuitive, and the measuring range is large. Equipped with liquid level alarm and control switch, it can realize the upper and lower limit alarm and control of liquid level or boundary level. With liquid level transmitter, the liquid level can be measured. The interface signal is converted into a standard signal of the two-wire system to realize long-distance detection, indication, recording and control.
The magnetic flap liquid level meter is widely used for liquid level measurement and control in the production processes of electric power, petroleum, chemical industry, metallurgy, environmental protection, shipbuilding, construction, food and other industries.
Technical parameters of magnetic flap level gauge:
Ambient temperature: ℃～℃
Relative humidity: %～% (including condensation and direct moisture)
Atmospheric pressure:～< br/> Measuring range: ~ binning
Measuring accuracy: float indicator
Tilting column indicator
Working pressure:,.,.,,.
Medium density: ~.Binning
Medium viscosity: b
Medium temperature: ~℃, (high temperature type ~℃), (patented high temperature type ~℃)
Tracking speed:
Contact medium material :r Polytetrafluoroethylene
Control point error
Hysteresis: no more than the basic error
Repeatability error: no more than the basic error
Contact capacity of the switch control point: or (pure Resistive load)
Minimum distance between control points:
Shell protection level:
Display instrument: Digital display meter (upper and lower limit alarms and output ~ signals can be set)
Explosion-proof level :ⅡB
Main technical indicators of magnetic flap level gauge:
Measuring range: ~
Medium density: ~.
Medium viscosity:
Working temperature: ~.℃
Pressure level:
Measurement accuracy.
Installation method: side-mounted, top-mounted, bottom-mounted
Protection level:
Explosion-proof level: bⅡ (intrinsically safe Type), IIB (Explosionproof type)
Transmission method: ~ or switching value
Interface flange: (side-mounted type)
Structure and working principle of magnetic flap level gauge:
, Basic type:
According to the principle of buoyancy, the float moves up and down in the measuring tube as the liquid level rises and falls. The permanent magnet in the float drives the red and white flip columns to flip through coupling, and the liquid level rises. The turning column turns from white to red when it falls, and turns from red to white when it falls, thereby achieving liquid level indication.
, Electrical remote transmission:
Install a transmitter on the float level gauge, move the float up and down, and make the measuring elements in the guide rod act in sequence through magnetic coupling, obtain the resistance signal change, and convert it into ~ Or ~ standard signal output, connected with the display instrument or computer to achieve the purpose of remote transmission.
, Upper and lower limit switch output:
A controller is installed on the liquid level meter standpipe at the upper and lower limit positions set by the user. The controller has a reed switch with a self-maintaining function, and uses a magnetic float to follow the When the liquid level moves and causes the reed switch to operate, alarm or limit control is achieved.
Magnetic flap liquid level gauge system composition and wiring:
, upper and lower limit switch output:
It is composed of a reed switch and a converter with self-maintaining function. The reed switch and converter are respectively Installed on site and in the control room, the converter provides three pairs of contact switches.
, Electrical remote transmission:
It is composed of two parts: measurement unit and transmission unit.
, Intrinsically safe explosion-proof:
With intrinsically safe explosion-proof, upper and lower limit switch output type
The explosion-proof switch consists of a reed switch and a safety barrier with relay contacts, which can directly provide users with a For normally open or normally closed contacts. If users need more contacts, special designs and orders can be made.
b With intrinsically safe explosion-proof remote transmission type
Suitable for use in electrical equipment (for factory use), grade 1 gas, and the highest surface temperature group (℃).
Precautions for use
The transmitter housing is equipped with an external ground, and the user must ground it reliably when using it.
The use of safety barriers should comply with the relevant instructions.
The connecting cable between the transmitter and the intrinsically safe end of the safety barrier is a two-core shielded cable. The cross-sectional area of the core wire is >., and the allowable distributed capacitance of the cable is.