Your Professional Digital Display Input Level Gauge Supplier
Xian Baochen Information Technology Co., Ltd. is located in high-tech Zone, Xi 'an, Shaanxi Province, China, is a focus on sensors, transmitters, inverters, power semiconductor devices and supporting instruments R & D, manufacturing, sales and service enterprises. The company invests in research and development team, cooperates with excellent universities, integrates industry resources, and provides the best quality solutions for domestic and foreign users. Enterprise mission: to meet user needs and create value for customers.
Why choose us
Sales Market
We Products are exported to Europe, America, Southeast Asia, West Asia, Central Asia and other countries around the world. Our products are well received in these markets.
Our Service
Able to quickly respond to customer needs, to provide personalized customization, timely delivery, professional technical support and perfect after-sales service.
Strict Quality Control System
Able to efficiently produce large quantities of products, advanced production processes and stable supply chains, the implementation of strict quality control system. Constantly introduce new technologies and new materials to improve product performance and production efficiency.
Wide Range of Applications
Through the EU CE, RoHs testing, products are widely used in petrochemical, water conservancy and hydrology, machinery and equipment, automobile manufacturing, industrial process control, weighing measurement, people's livelihood applications and other fields.
Digital Display Input Level Gauge
A digital display input level gauge (digital level gauge) is a measuring instrument that uses digital display technology to directly display the liquid height or liquid level percentage. Its core function is to convert the physical quantity of the liquid level into an electrical signal through a sensor, and then intuitively display the measurement results after digital processing.
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Application situation |
Liquid level |
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Measuring range |
The value ranges from 0 to 0.2 m to 500m |
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Comprehensive accuracy |
Level 0.5 (default) Level 0.3 (custom required) |
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Overload capacity |
200% |
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Medium temperature |
-40~60℃(temperature compensation-40~70℃) |
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Ambient temperature |
-40~85C |
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Supply voltage |
DC24V[15 to 36V DC](default), 12VDC power supply needs to be customized |
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Output signal |
4~20mA two wire, 0~5V three wire, 1~5V three wire |
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Stability performance |
±0.2%FS/ year |
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Seal class |
IP68 |
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Process connection |
Put type, put into the measured liquid |
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Electrical interface |
The tight wire waterproof nut is connected with the five-core air guide cable. |
Advantages of Digital Display Input Level Gauge
High Accuracy and Stability
The digital display eliminates human reading errors, achieving an accuracy of ±0.5% FS (full scale). Temperature compensation and linear correction technology ensure long-term stability.
Multi-Function Integration
Supports high/low level alarms, remote transmission, and automatic control. For example, in a chemical reactor, it can be linked to pumps and valves for automatic level adjustment.
Strong Anti-Interference Capability
The guided pulse digital level gauge uses microwave transmission, making it unaffected by steam and foam, making it suitable for harsh working conditions.
Flexible Installation
Supports various installation options, including side mounting, top mounting, and flange connection, to accommodate various container structures.
Type of Digital Display Input Level Gauge
Static Pressure Digital Level Gauge
A bottom-mounted pressure sensor directly measures the static pressure of the liquid. The sensor converts the pressure signal into a 4-20mA current or 1-5VDC voltage signal, which is digitally processed to display the liquid level.
Ultrasonic Digital Level Gauge
The probe (transducer) emits ultrasonic pulses and receives the reflected signal from the liquid surface. An internal timer records the time difference and digitally processes it to display the liquid level.
Guided Pulse (Radar) Digital Level Gauge
The antenna transmits microwave pulses, and the reflected signal from the liquid surface is captured by the receiver. An internal processor calculates the time difference and digitally filters it to display the liquid level.
Magnetic Flip-Type Digital Level Gauge
Combining buoyancy sensing and magnetic coupling technology, the magnet inside the float drives an external flip-up valve to indicate the liquid level. A digital display module can be added for digital display.
Capacitive Digital Level Gauge
A coaxial capacitance probe (or parallel plate capacitor) is inserted into the liquid. Changes in liquid level cause changes in capacitance. A capacitance-to-voltage conversion circuit converts this capacitance change into a voltage signal, which is digitally processed to display the liquid level.
Float-type digital level gauges
The float rises and falls with the liquid level, driving a potentiometer or encoder through a connecting rod or magnetic coupling. This mechanical displacement is converted into an electrical signal, which is then digitally processed to display the liquid level.
Chemical and Petroleum Industry
Monitoring tank and reactor liquid levels to prevent overflows or dry pumping. For example, in refineries, hydrostatic digital level gauges can measure crude oil tank levels with an accuracy of ±1mm.
Water Treatment System
In sewage treatment tanks, ultrasonic digital level gauges can monitor water levels in real time, triggering pump starts and stops to conserve water resources.
Food and Pharmaceutical Industry
Sanitary digital level gauges, made of 316L stainless steel and FDA-certified, are suitable for measuring high-viscosity liquids such as syrup and beer.
Power and Metallurgy Industry
For boiler drum water level monitoring, electric contact digital level gauges utilize the difference in electrical conductivity between water and steam to achieve long-distance, inertia-free measurement, ensuring safe boiler operation.
Working Principle
Buoyancy Sensing
A float (made of plastic or metal) moves as the liquid level rises or falls. Its buoyancy changes according to Archimedes' principle (buoyancy = liquid density × float volume × acceleration due to gravity). For example, in a hydrostatic digital level gauge, the float is connected to a pressure sensor via a connecting rod, which converts the liquid level into a pressure signal.
Sensor Conversion
Pressure Sensor:Measures the static pressure of the liquid (proportional to the liquid level) and outputs a 4-20mA current or 1-5VDC voltage signal.
Acoustic Sensor (Ultrasonic):
Transmits ultrasonic waves and receives reflected signals, calculating the distance to the liquid surface based on the time difference.
Microwave Sensor (Guided Pulse):
Transmits microwave pulses and uses the time difference between reflected signals to determine the liquid level. This sensor is suitable for high-precision applications.
Digital Display and Output
After analog-to-digital conversion, the measured signal directly displays the liquid level (in meters, centimeters) or as a percentage on the digital display.
Supporting standard signal outputs such as 4-20mA and 1-5VDC, it can be connected to a PLC, DCS control system, or alarm system.
Maintenance Tips
Regular Inspections
Check the float's fluidity, contact condition, and seals every six months.
For ultrasonic level gauges, clean the sensor surface to prevent signal attenuation.
Calibration and Debugging
For static pressure level gauges, regularly calibrate the pressure sensor's zero and span.
For guided pulse level gauges, verify the microwave propagation velocity compensation parameters.
Troubleshooting
●Contact sticking: Sand the contacts or replace the microswitch.
●For abnormal display: Check the power supply stability and signal cable connection.
FAQ
As one of the leading digital display input level gauge manufacturers and suppliers in China, we warmly welcome you to wholesale cheap digital display input level gauge in stock here from our factory. All customized products are with high quality and competitive price.
digital display input level gauge