Remote Sensor PN40 Magnetic Fuel Level Indicator
The UHC type magnetic flap liquid level gauge is made up of measuring body,dual-colored display cylinder, ruler, top&low flange, magnetic ball and transmitter (4-20mA). Based on buoyance principle, the magnetic ball in the body of the level gauge is up or down with the liquid level changing and makes dual-colored turning to show the level of medium. Each cylinder is with two-color axisymmetric structures. The distance of two cylinders is 10mm. Red side of display cylinder indicates liquid and white side display cylinder indicates air. Besides measuring liquid level, it also could measure the interface of the two kinds of liquid.
1. Simple structure, good stability and reliability.
2. Independent of medium’s physical and chemical states such as conductivity, dielectric constants, foam etc.
3. Appliable for all kinds of medium environment such as corrosive, toxic and explosive one.
4. Interface measurement or level measurement of 2 kinds of medium with different density.
5. Two-wire 4~20mADC signal output, 0.8’’ or 0.56” LED digital display.
|(1) Center-center distance:||150~6000mm|
|(2) Medium density:||More than 0.45g/cm3|
|(3) Nominal pressure:||PN2.5~PN40, PN40~PN320(x 0.1MPa)|
|(4) Material:||SS304, 316L, PP, PTFE, or customized|
|(5)Operating temperature:||-190 ~ +425 °C|
|(6) Process connection:||DN20~DN80/RF/14,DN80~DN250/RF/14|
|A: Al &ABS flap cylinder||B: Al flap plate|
|C: PVC ABS flap cylinder||D: PP&ABS flap cylinder|
|E: AL &LED||F: PP&LED|
(8) Structure of top chamber:
2.welding cover with M14*1.5 plug screw
4.flange with M14*1.5 plug screw
5.welding cover with DN20 flange
6.flange with DN20 flange
7.welding cover with air valve
8.flange with air valve
(9) Structure of bottom chamber:
2.flange with drain plug screw
3.flange with DN20 welding tube
4.with DN20 flange
5.with needle/ball valve
(11)Application: Widely used in petroleum, chemical industry, oil field, pharmaceuticals industry,
food, wine industry etc., suitable for level measurements under the environment of high/low
temp., high pressure, strong corrosion, toxicity.
Note: Basic type, top mounted type, heat tracing type, LPG specialized type, anti-corrosive
type, boiler steam specialized type etc, they have some differences in technical parameter.
Different pressure has different flange specification.
Workshop and Processing
Principle of the remote magnetic flap level gauge
Because the remote magnetic flap level gauge is composed of a magnetic flap level gauge and a reed remote transmitter, combining the two components of the magnetic flap level gauge &1 introduces the working principle of the magnetic flap level gauge. The basic type of magnetic flap level gauge is a magnetic flap level gauge, also known as a magnetic float level gauge. Based on the structure of the connector, the principle of buoyancy and the magnetic coupling characteristics, real-time measurement of the liquid level is realized. When the liquid level in the measured container rises or falls, the magnetic float used to sense the change of the liquid level in the main measuring tube will also rise or fall. The permanent magnet steel in the float drives the magnetic flap outside the main measuring tube to flip 180&; 180 flux magnetic coupling; the two sides of the valve are painted with different colors (usually red and white) to indicate the position of the liquid level. When the liquid level in the container rises, the valve changes from white to red. When the liquid level in the container drops, the valve changes from red to white. The red and white junction of the indicator is the actual height of the liquid level in the container, so as to realize the accurate measurement and local display of the liquid level.
Technical parameters that users need to know and provide
|1.Installation method:||Side-mounted (as shown in Figure 1) Top-mounted (as shown in Figure 2)|
|2. Measuring medium:||such as water, oil, other chemical solvents and liquid raw materials|
|3. Material requirements:||such as 304 stainless steel, 316L stainless steel, stainless steel lined with PTFE, PP, PVC (if the user is unclear, after providing relevant parameters, our technicians can help to choose)|
|4. Measuring the temperature of the medium:||the difference in temperature determines the different choices of the material type of the float and the display panel. When the temperature is too low in winter, it is necessary to install a potential heat or a steam jacket for heat preservation. The medium temperature that can be measured by the liquid level gauge is -20℃~500℃.|
|5. Working pressure:||The size of the pressure determines the thickness of the main conduit and the different processing techniques such as welding. The highest pressure of the medium that can be measured by the level gauge can reach 10MPa.|
|6. Connection method:||the top-mounted magnetic flap liquid level gauge series products generally use DN80 or DN100 connection flange, and the side-mounted magnetic flap liquid level gauge has three connection methods: flange connection (such as DN25), clamp connection, threaded connection.|
|7. Measurement range:||
1. The side-mounted type is connected to the container to be measured by the two upper and lower pipes, so the measurement range is the distance between the centers of the two pipes, referred to as the center distance.
2. The top-mounted type is inserted into the container from the top, so the measurement range is the distance between the top and bottom of the container that needs to be measured.
|8. Remote transmission and alarm signal:||magnetic flap level gauge can realize remote transmission 4-20mA, 485 communication, Modbus protocol and switch signal, alarm function.|