Magnetic Float Level Gauge

I. Structural Features:

Basic level gauge operates on the principle of buoyancy. The float inside the measuring tube moves up and down with the liquid level. The magnetic steel within the float drives the red and white pointers to flip 180 degrees through magnetic coupling. As the level rises, the pointers change from white to red, and when it falls, they change from red to white, indicating the liquid level accordingly.

Limit switch output utilizes a magnetic float to move with the liquid level, causing the spring switch installed at the set position of the level gauge's vertical tube to activate, achieving ON-OFF control or alarm.

Transmitter installed on an electromagnetic float level gauge. The transmitter consists of a sensor and a converter, which, through the up and down movement of the electromagnetic float, causes the measuring components inside the conduit to act sequentially via magnetic coupling. This results in a change in resistance signal, which is then converted into a standard current signal of 0~10mA or 4~20mA for output. This allows for connection to digital display meters or computers, enabling remote display.

Section II: Working Principle:

This product consists of the main body, a flip-top box (comprised of red and white dual-color magnetic flip tops), a float, a flange cover, and a level transmitter, as shown in the diagram. The working principle is as follows: The flip-top box and transmitter outside the main body are actuated by the internal float (equipped with a directional magnetic source, specifically designed for different media and pressures) to flip the lids and display red and white colors, indicating different liquid levels as the float moves. Meanwhile, the level transmitter transmits the liquid level signal to the control center for level indication and control, and can also be centrally monitored via a computer.

Section 3: Key Technical Parameters:

Model No.

The composition of the magnetic float level gauge with tilting rod is as follows:

2. Model Marking Example:

UFYZ-34-1111, L=2500, ρ=0.6, Side-mounted, ABS (0.6MPa), Standard Model, Installation Spacing 2500mm, Medium Density 0.6g/cm³.

UFYZ-34-2232 □ L=2500 L1=3000 ρ=0.5 Top-mounted, Stainless Steel (2.5MPa), with Upper/Lower Limit Switch Outputs, Measuring Range 2500mm. Installation Depth 3000mm, Medium Density 0.5g/cm³.

Order Instructions:

Please specify the model and specifications, measurement range, installation depth, medium density, medium temperature, and working pressure when placing an order.

If you're using flanges in JB, HG specifications, or other sizes, please specify. Our factory's professionals will assist you in selecting the right type or design and manufacture a special product for you.

Customers must provide the flanges and gaskets, etc., as listed in the table below. The relevant dimensions of the flanges provided by the customer, as well as the sealing dimensions, can be found in the image and table below:

V. Extensible Technology of Jinglai Electronics

1. Outputs a 4-20mA analog continuous signal.

2. Connected to the upper PLC control system for automated operation (mainly recommended for Mitsubishi series PLC, Siemens PLC, and Schneider PLC).

3. Bluetooth mobile display function, showing liquid level height on the phone (Bluetooth range of 10 meters).

4. Supports GPRS remote transmission and GSM remote communication.

5. Supports 232, 485 communication, including MODBUS communication protocols, etc.

6. Supports DCS configuration display.

Section 6: Instructions for Use

1. When using the level gauge, first slowly open the valve to allow fluid entry, then preheat the special glass tube for 20-30 minutes. Once it reaches a certain temperature, you can fully open both ends to fill with water or other medium.

2. Regular descaling is required during use to prevent blockages and false water level readings due to sediment buildup.

3. In the event of accidental damage to the quartz tube, by turning the caps of the upper and lower plugs 90 degrees using the upper and lower handles of the gauge, the medium inside the container can be prevented from continuing to leak out. At this point, the damaged part can be replaced.

Section 7: Usage and Maintenance:

1. After packaging, the water level gauge can be transported using standard means of transport, but it should be avoided from severe vibrations and direct erosion by rain and snow.

2. The level gauge should be placed in a dry, well-ventilated room with a temperature of 0~40°C and a relative humidity not exceeding 80%. Outdoor air should not contain corrosive substances for the instrument.

3. The water level gauge must be installed vertically, with an inclination deviation of less than 3 degrees.

4. A shut-off valve should be installed between the level gauge and the container to isolate the medium during cleaning and maintenance.

5. Depending on the medium, the main tube should be cleaned regularly to remove any debris inside.

Section 8: Order Instructions:

1. Model and Specifications

2. Measurement Range (Center Distance L)

3. Work pressure

4. Operating Temperature

5. Material Requirements

6. Flange Standard