Made by mayante Remote magnetic level indicator It is the combination of basic type and remote transmitter, which can realize the functions of signal remote transmission, liquid level alarm and control. UHZ type magnetic flap level gauge is intuitive, eye-catching, cost-effective, temperature resistant, pressure resistant, anti-corrosion, explosion-proof characteristics, so that it is widely used in power, petroleum, chemical, metallurgy, environmental protection and other industries in the production process of liquid level measurement and automatic control.
?? Principle of liquid level gauge with remote magnetic flap
Based on the buoyancy principle and magnetic coupling effect, the magnetic flap level gauge produced by meiante company is developed. When the liquid level in the measured vessel rises or falls, the float in the main tube of the liquid level gauge rises and falls. The permanent magnetic steel in the float is transmitted to the field indicator through magnetic coupling to drive the red and white column to turn 180 degrees. When the liquid level rises, the turnover column turns from white to red. When the liquid level drops, the turning column turns from red to white. The red and white boundary of the indicator is the medium level in the container The actual height, so as to realize the liquid level indication.
The remote transmission of electric signal of magnetic flap level gauge produced by meiante company is realized by the combination of basic type and liquid level remote transmission device. The liquid level remote transmission device is composed of ur type resistance sensor and UB type R / I conversion module. The sensor of the transmitter is fixed on the outside of the main pipe of UHZ magnetic flap level gauge in the form of binding, so that it is in the same magnetic coupling system of the liquid level gauge. When the magnetic float moves up and down with the liquid level, the reed tube corresponding to the liquid level is pulled in by the magnetic field in the float, and the resistance value of the resistance chain changes. The changed resistance signal is converted into a two-wire 4-20madc standard signal output through the conversion module. The signal can be conveniently used with electric type III instrument and display instrument, and can also be used with light column indication and digital display adjustment alarm device In order to achieve the purpose of display, control, adjustment and alarm.
The control and alarm of magnetic flap level gauge produced by meiante company is operated according to the given value of liquid level through reed tube or mercury contact switch, so as to achieve the purpose of liquid level alarm, control and accident interlocking.
Technical parameters of explosion-proof remote magnetic flap level gauge
A. Basic type
Measurement range: ± 5 mm to 15000 mm
Working temperature: - 40 ～ 250 ℃ (ABS, PP-R, PVC: - 40 ～ 80 ℃), special type can reach 450 ℃
Working pressure: ≤ 2.5MPa (more than 2.5MPa, additional juice can be set) anticorrosive type ≤ 0.6MPa
Medium viscosity: ≤ 1st (10-4m2 / s) medium density: ≥ 450kg / m3
Medium density difference: ≥ 150kg / m3 sewage interface: ZG1 / 2 "(inside)
Environmental vibration: frequency ≤ 25Hz, amplitude ≤ 0.5mm, following speed: ≤ 0.08m/s
Liquid contact material: stainless steel (1Cr18Ni9Ti, 316316L)
Stainless steel lined with polytetrafluoroethylene (1Cr18Ni9Ti lined with PTFE,)
PVC plastics (PVC), PP-R, ABS
Connection process: side mounted hg20592-97 DN25 pn4.0 (or user specified)
Top mounted hg20592-97 DN 100 pn1.6 (or user specified)
Jacket flange hg20592-97 DN 15 pn1.6 (or user specified)
B. Remote transmission device
Output signal: 4 ~ 20mA, load impedance: 350 Ω (at 24 VDC)
Power supply: 18 ~ 30VDC (rated 24VDC), ambient temperature: - 40 ~ 80 ℃
Relative humidity: ≤ 90% RH power consumption: 0.5W
Intrinsically safe type: ibiict4 flameproof type: diibt4
C. Control alarm switch
Output type: normally open and normally closed switch signal; alarm accuracy: + 10mm
Ambient temperature: - 40 ~ 80 ℃ working life: ≥ 105 times
Outlet interface: M20 ? 1.5 or internal thread 3 / 4 ″
Characteristics of remote magnetic level gauge
It is suitable for the measurement of liquid level and boundary position of pressure vessels. It can be used for on-site indication, remote output and control alarm.
The indication is novel and the reading is intuitive and eye-catching. The observation angle can be changed according to the user's convenience.
The tank height is not limited.
The indicating mechanism is completely isolated from the measured medium, so it is well sealed, highly reliable and safe to use.
High temperature resistant, can use colorless ceramic turnover column.
It has the advantages of simple structure, convenient installation and low maintenance cost.