用于低温到高温，真空到高压等各种环境，是石油、化工等工业部门的理想液位测量产品。 XY-UHZ side-mounted magnetic flap level gauge is
used in low temperature to high temperature, vacuum to high pressure and other environments. It is an ideal level measurement product for petroleum, chemical and other industrial sectors. Depending on the installation position in the container, there are two types of side mounting and top mounting. According to the working medium, three materials are available: stainless steel, ABS, and PP-R engineering plastics. Among them, ABS and PP-R are suitable for acid, alkali and other corrosive media.
Product structure and working principle:
1. The float is used as the measuring element. The magnetic steel drives the column display, no energy is needed.
2. Equipped with upper and lower limit switch output, which can realize remote alarm and limit control.
According to the principle of buoyancy, the float moves up and down with the rise and fall of the liquid level in the measuring tube. The coupling of the *** magnetic steel in the float drives the red and white flip columns to turn 180 °. It is red, and changes from red to white when descending, so as to realize the level indication.
Install the transmitter on the float level gauge, move the float up and down, and make the measuring element in the guide rod act sequentially through the magnetic coupling effect to obtain the change of the resistance signal and convert it into a standard signal output of 0-10mA or 4-20mA, and display Instrument or computer connection for remote transmission.
3. Upper and lower limit switch output
The controller is set on the upper and lower limit positions of the liquid level gauge stand by the user. The controller has a self-retaining reed switch. When the magnetic float moves with the liquid level to make the reed switch act, the alarm or limit is realized. Bit control.
1. Upper and lower limit switch output
It consists of a self-retaining reed switch and a converter. The reed switch and the converter are respectively installed in the field and the control room. The converter provides three pairs of contact switches.
It consists of a measurement unit and a transmission unit.
3.Intrinsically safe explosion-proof
a With intrinsically safe explosion-proof, upper and lower limit switch output type
Explosion-proof switches are composed of reed switches and safety barriers with relay contacts, which can provide users with a pair of normally open or normally closed contacts directly. If users need more contacts, they can be specially designed and ordered. (Figure III)
b With intrinsic safety explosion-proof remote transmission type
Suitable for use in ∏-type electrical equipment (factory use), Class C gas, higher surface temperature group T4 (135 ° C).
c Precautions for use
① The transmitter housing is provided with an external ground. The user must be reliably grounded during use.
② The use of safety barriers should comply with the relevant instructions.
③ The connecting cable between the transmitter and the intrinsically safe end of the safety barrier is a two-core shielded cable with a cross-sectional area of the core wire> 0.5m, and the allowed distributed capacitance of the cable is 0.8μF.
Technical parameter selection: