Liaoning Dragon mechanical and electrical professional production of magnetic level gauge

Overview magnetic sub-level gauge is based on GB / T 25153-2010 designed and manufactured to level measurement instruments "chemical pressure vessels magnetic sub-level gauge" standard, and its structure is based on the principle of buoyancy and magnetic design and production. Float with a magnet (the magnetic float) by the buoyancy effect in the measured medium position. Level changes lead to changes in magnetic float position, static magnetic coupling magnetic float and magnetic sub leads magnetic sub-flipping certain angle (different color magnetic sub-surface coating), and then reflect the level of the container. The gauge also can be used with the sensor (reed switch, etc.) and other sophisticated electronic components, such as sensor module and transmitter modules that can signal transmitter output resistance value, the current value (4 ~ 20mA) signal, switching signal as well as other electrical signals. Enabling in situ and perfect combination of remote control. The level gauge can be applied to almost all kinds of industrial automation and process control openings or pressure vessel level measurement and control of various media. It can be widely used in petroleum processing, food processing, chemical, water treatment, pharmaceutical, power, paper making, metallurgy, shipbuilding and boiler level measurement, control and monitoring. Gauge machine made of stainless steel, with explosion-proof models, it can be used for corrosive, toxic, flammable, explosive and other places. A device designed for level measurement principle of magnetic sub-level gauge is based on the principle of magnetic coupling, Archimedes (buoyancy) and other principles of a clever combination of the characteristics of mechanical drive and developed. On this basis, expanding its scope, extending a variety of types of products in the detection level at the same time we give them more practical function. This type of instrument has a float receiving cavity (referred to as the main pipe or casing), which form a flange or other communication via the interface and the container; its liquid cavity so that the liquid level within the container is the same height, so the cavity of the container with the liquid level float will lift and the lift; this time we can not see the level, so we installed a turned column display outside of the cavity, because we manufacture the float in the float and sink into the liquid portion of the junction installed floating magnet, when it float with the lift surface, which passes through the magnetic housing to turn the column display, push magnetic sub-flip 180 °; Since the magnetic sub is red, white two semi-cylindrical composite cylinder, so flip by 180 ° towards the outside of the display turned column will change color (red below the surface, more than white), two-color border that is the level of height. In order to expand its scope of use, it can also increase the level transmitter device according to relevant standards and requirements in order to output a variety of signals. Wherein, 4 ~ 20mA current signal is more commonly used. For example: while monitoring the level of magnetic switch signals can be used for liquid level control or alarm; on the basis of the gauge turned column adds 4 ~ 20mA transmitter sensor, on-site monitoring of the level at the same time, the liquid change in bit by transmission sensor, cable and instruments reached the control room, remote monitoring and control. Figure 1 is a block diagram level meter works 2 remote device electrical schematics Features measuring range, clear and intuitive readings; less seal the joint surface, easy to leakage, safe and reliable; indicating portion with the measured medium completely isolated; easy to install, easy maintenance. Scope With the changes in market demand to achieve the company's products are constantly upgrading and improving the quality and technology of the production process, broaden the application areas of the level gauge and scope. In addition, the output signal level meter diverse achieve remote level indication, detection, control and recording. The level gauge can be applied to almost all kinds of industrial automation and process control level measurement and control. It can be widely used in petroleum processing, food processing, chemical, water treatment, pharmaceutical, power, paper making, metallurgy, shipbuilding and boiler level measurement, control and monitoring. Basic technical parameters measuring range: 300 to arbitrarily selected within the range 10000mm indication error: ± 10mm medium density: ≥0.40g / cm3 medium temperature: -80 ~ 400 ℃ Working pressure: PN1.0,1.6,2.5,4.0MPa medium viscosity : ≤150cP wetted materials: 1Cr18Ni9Ti connecting flange: PN≤2.5MPa JB / T81-94 / PN≥4.0MPa JB / T82.2-94 DN20, DN25 Looper flange sewage takeover: G1 / 2 (inside) insulation collet connector: G1 / 2 internal thread, pressure <0.3MPa overhead type measuring range: 500 ~ 3000 (mm) indication error: ± 10mm medium density: ≥0.45g / cm3 medium temperature: -80 ~ 400 ℃ Working pressure: PN1.0,1.6,2.5,4.0MPa medium viscosity: ≤150cP wetted materials: 1Cr18Ni9Ti connecting flange: PN1.6 DN150 JB / T81-94 alarm contact capacity: 24V 0.2A output form: normally open, normally closed switching signals Working life:> 105 times Power supply: DC 24V Ambient temperature: -40 ~ 60 ℃ and outlet: M20 × 1.5 (within) remote device Remote Range: 0 ~ 6000mm Accuracy: ± 10mm output signal: DC 4 ~ 20mA load resistance: 500Ω (when powered at DC 24V) Power supply: DC 24V Ambient temperature: -40 ~ 60 ℃ and outlet: M20 × 1.5 (within) proof in the form: flameproof ExdⅡBT4 structure and installation size magnetic sub-level gauge analog display type can be divided into the field, an analog display + lower limit alarm output type, analog display + transmitter output type, the structure shown in Figure 3. Top-mounted at the top of the underground tank installation shown in Figure 4. Site analog display analog display + transmitter output + alarm output analog display type 1, the measuring tube 2, the float assembly 3, a display 4, 5 transmitters, alarm 6, 3 sewage valve overhead type (top-mounted) Top Location Type (underground tank insulation jacket structure overhead type (top-mounted) overhead type (underground tank top-mounted) 1, the measuring tube 2, the display 3, the magnet 4, flange 5, the float rod 6, the stop ring 7, the float guard 4 pipe installation and use of this product must be installed vertically, without deviation ≤3 ° to the maximum level gauge body around 200mm from the ferromagnetic materials of the product over four meters, in the middle of the installation process, you must add support after installation should first use adjust the magnet along the flap surface moves slowly, so that all the red side toward the observer flap level gauge into the top run, you should open the valve, then slowly open the lower valve, the medium flows into the cylinder slowly let each flip flap track indication, and use the adjusting screw to adjust the zero level in the course, due to a sudden change in the level or other causes individual flap malfunction, the magnet can be used to adjust the correction made in the container before the pressure test, please communication valve closed and gauge maintenance and repair magnetic level gauge plate turned through long-term use, the body of a precipitate if the media will affect the normal operation of the float, must be cleaned regularly. Before cleaning first turn off the gas and liquid phase valve, remove the remaining material cylinder body after cleaning as is fitting, do not float upside down, the gasket should be replaced with anti-aging leak, tighten the screws. gauge for many years after use, especially when long-term high-temperature environment, If found ineffective magnetic flap indicator tracking, you should first check whether the float magnet demagnetization, such as the demagnetization, please replace the float. Orders In order to better serve you, please you based on your actual situation , with reference to selection description (not covered matters, please contact us), carefully chosen for your specific needs. When you understand your needs and the basic attributes of our products, the choice of instrument correctly according to design requirements and site conditions and press code for ordering the complete product specifications when according to the design and use requirements failed to elect the appropriate instrument, please ask questions and requirements, our professional staff will assist you in the selection or design and manufacture of special products, please provide the following information at least : work pressure, temperature, media name, the material requirements and other models described spectrum LTLF- □□□□□□□□□ magnetic sub-level gauge mounting C D top-mounted side-mounted X-demand customized structure Standard Type 0 1 2 cold frost insulation jacketed type 3 high temperature (≥150 ℃) 4 anti-corrosion 5 food type alarm switch 0 None A band, the lower limit alarm (not holding type, one-shot) B band lower limit alarm (hold type, bistable) remote output 0 None Y with 4 ~ 20mA output no ordinary explosion-proof 0 d flameproof (ExdⅡBT4) Operating Pressure 0 pressure (open container) 1 ≤1.6MPa 2 ≤2.5 MPa 3 ≤4.0MPa X higher pressure medium temperatures -T ℃, specific numerical medium density -ρ g / m3, the specific value of the measurement range -L mm, the specific values ??(500 to 6000)