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Product introduction

The LF800 series magnetic level indicator consists of a main body, a flap display panel (composed of red and white magnetic flaps), a float, flange covers, etc. It is used for liquid level measurement in various types of containers. It is suitable for applications such as high temperature, explosion-proof, corrosion-resistant environments, and food & beverage industries, serving both local and remote level indication and control.

The LF800 can achieve high sealing, leak-proof performance, and reliable level measurement under high temperature, high pressure, high viscosity, and highly corrosive conditions. It offers full-range measurement with no dead zones, clear display, and intuitive readings. With an optional level alarm and control switch, it can provide upper and lower limit alarms and controls. Equipped with a level transmitter, it converts the level/interface signal into a 2-wire 4–20 mA DC standard signal, enabling remote monitoring, indication, recording, and control.

LF800 series indicators adopt either top-mounted or side-mounted bypass tube installation. The main body is equipped with a magnetic flap display, level switch, and level transmitter. The magnetic unit is either placed inside the float or linked with the float via a rod. As the float moves with the liquid level, it flips the magnetic display flaps. The level switch activates at corresponding level points, while the level sensor outputs a resistance signal influenced by the float’s magnetic field. This resistance signal is then converted by a transmitter into a 4–20 mA current signal output.

Technical Specifications Product Applications Dimension Drawing Function Configuration And Selection Several Common Installation Methods Function Configuration & Options

Measuring Range: 150–8000 mm

Working Pressure: Atmospheric; 1.6 MPa; 4.0 MPa; 6.4 MPa; 10 MPa

Connection Type: Flange or Threaded

Body Material: 304 Stainless Steel

Flap Material: Aluminum Alloy

Medium Density: 0.8–1.0 g/cm³

Medium Viscosity: ≤ 0.4 Pa·s

Operating Temperature: -20 to 80°C

Medium Temperature: -20 to 100°C

Suitable for level measurement of a wide range of liquids; various installation options

The measuring medium is fully isolated from the display mechanism; excellent sealing and leak prevention

Capable of high-pressure, high-temperature measurement with high reliability

Integrated local display, remote transmission, and alarm control switch, fully adjustable

Bi-color luminous display strip for clear, continuous, and direct indication over a large range; adjustable viewing direction

Strong anti-vibration performance for fluctuating level environments

Simple structure, easy installation, and low maintenance costs

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Selection Guide

PN53E-

 

 

 

 

 

 

 

 

PN53E Series Electronic Digital Pressure Switch Transmitter

 

Z

 

 

 

 

 

 

 

Positive pressure

 

F

 

 

 

 

 

 

 

Negative pressure

 

 

A

 

 

 

 

 

 

Pressure Ranges :-1.. 1bar or 0.. 1bar

 

 

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Pressure Ranges :-1..2bar or 0..2bar

 

 

C

 

 

 

 

 

 

Pressure Ranges :-1..5bar or 0..5bar

 

 

D

 

 

 

 

 

 

Pressure Ranges :0.. 10bar

 

 

E

 

 

 

 

 

 

Pressure Ranges :0..25bar

 

 

F

 

 

 

 

 

 

Pressure Ranges :0.. 100bar

 

 

G

 

 

 

 

 

 

Pressure Ranges :0.. 160bar

 

 

H

 

 

 

 

 

 

Pressure Ranges :0..250bar

 

 

I

 

 

 

 

 

 

Pressure Ranges :0..400bar

 

 

J

 

 

 

 

 

 

Pressure Ranges :0..600bar

 

 

K

 

 

 

 

 

 

Custom range (e.g., 300 bar)

 

 

 

G4

 

 

 

 

 

G1/4 thread

 

 

 

G2

 

 

 

 

 

G1/2 thread

 

 

 

K5

 

 

 

 

 

Clamp connection (Ø50.5 mm, max 16 bar)

 

 

 

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Flush diaphragm connection

 

 

 

 

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Custom thread

 

 

 

 

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External thread

 

 

 

 

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Internal thread

 

 

 

 

 

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2 relay outputs

 

 

 

 

 

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2 relay outputs + 4–20mA analog output

 

 

 

 

 

 

Q

 

 

Direct cable output

 

 

 

 

 

 

 

Z

 

Damping screw (optional)

 

 

 

 

 

 

 

S

 

Heat sink (optional)

 

 

 

 

 

 

 

 

1

Axial

 

 

 

 

 

 

 

 

2

Radial

 

 

 

 

 

 

 

 

3

Axial flange type

For 316L stainless steel housing, please specify when ordering.
The selection guide is for reference only. Final product configuration is based on code assigned at the factory.

Shanghai Kayuan Electronic
Technology Co., Ltd.

Shanghai Kayuan Electronic Technology Co.,Ltd is an enterprise specializing in the production and R & D of industrial sensors and controllers. Its main products include switches and sensors for flow, pressure, temperature, and liquid level.

In 2008, our assembly plant was established in Shanghai China,PAKU INTELLIGENT EQUIPMENT(SHANGHAI)CO.,LTD a subsidiary of Kayuan to produce the PAKU series of products. We adopt advanced technology and manufacturing processes across the board. With our professional design and production technology, comprehensive product lines, excellent quality, and sales network services, we can not only provide users with timely and professional technical support but also offer high - quality one - stop services.

The company has set up various departments such as the purchasing department, R & D department, quality management department, finance department, sales department, after - sales department, general office, laboratory, archive room, calibration workshop, production workshop, inspection area, storage area, shipping area, and tea break rooms, aiming to provide products of excellent quality and sincere services.

We adhere to the customer - centric concept of creating value for customers. According to the industry needs of customers, we continuously update technology and optimize services, aiming to become a leader in the field of process automation.

PAKU products are now widely used in different industries, including automation complete sets of equipment, petroleum equipment, chemical equipment, power equipment, welding equipment, steel equipment, metallurgical equipment, automobiles, and water treatment. We have served many customers at home and abroad, and our products are sold to countries such as Canada, the United States, Brazil, Indonesia, Vietnam, Thailand, and Russia.

In the increasingly competitive global market in the future, PAKU will, as always, serve a wide range of domestic and foreign customers with excellent quality, reasonable and competitive prices, on-time delivery, and perfect after-sales service. We welcome extensive cooperation with OEM and ODM customers.

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