External Ultrasonic Level Controller | Non-Contact Monitor and Control of Liquid Level (also known as “external liquid level switch”) is a new type of liquid level measurement and alarm device. It is mainly used to detect the liquid level of storage tanks and achieve upper and lower limit alarms. Tank temperature display (Hig-Pro type) or monitoring whether there is liquid in the pipeline.
This technology is not affected by factors such as medium density, dielectric constant, conductivity, reflection coefficient, pressure, temperature, precipitation, etc., and is suitable for liquid level process control in medicine, petroleum, chemical industry, electric power, food and other industries. This product is an ideal choice for monitoring toxic and highly corrosive hazardous liquids.
Introduction to External Ultrasonic Level Controller
The high frequency ultrasonic pulse produced by the probe of the liquid level control can pass through tank wall and transmit between the tank wall and the liquid and then be reflected back.
By detecting and calculating the reflective behavior, the level control can identify whether there is liquid at the monitored position.
The liquid level control can send relay signal to succeeding devices or other equipment at the mean time, which can realize the function of simultaneous monitoring or controlling.
This instrument is especially suitable for monitoring liquid level in a tank and alarming when the level reaches maximum or minimum level, which enables to monitor two levels simultaneously with only one transmitter. It can also be used to identify the existence of liquid in pipe (dry condition protection).
The tank can be made of various kinds of metal, metalloid or unfoamed plastic. Such measurement technique is not affected by medium density, permittivity, conductivity, reflection coefficient, pressure, temperature, precipitation or other factors.
Therefore it can be applied to the level control of various types of liquid in industries of pharmaceuticals, petroleum, chemical, electricity, food and so on. It is an ideal choice for strong toxic, corrosive and dangerous liquid level control.
Our External Ultrasonic Level Controller is available in basic model and Pro model.
The external ultrasonic liquid level controller Pro is an enhanced liquid level measurement and alarm device. An advanced signal processing method has been added to overcome the influence of temperature drift. Built-in temperature sensor, monitors temperature changes 24 hours a day. It can also Provide temperature compensation for 4000V surge and 2000V group pulse protection, with stronger anti-interference.
Features
Base model:
- Wide application: It can be used to measure various liquid media in highly toxic, highly corrosive, high-pressure, various complex working conditions, and explosive gas environments;
- The installation can be done without stopping production, clearing the tank, and without starting a fire;
- Non-contact liquid level monitoring and control
- The tank wall has no openings and penetrations, and is especially suitable for highly corrosive or high-pressure liquids under complex operating conditions or explosive gas environments;
Pro model:
- Advanced signal processing methods can overcome the influence of temperature drift and have stronger anti-interference;
- The new installation method, adsorption type + adhesive type, can improve the stability of the probe’s work;
- Built-in temperature sensor, monitors temperature changes 24 hours a day, and can also perform temperature compensation;
- Adopting a new single probe mode, installation is more convenient and avoids repeated calibration;
- The handheld meter can be used to debug the instrument; it can detect the status of the probe and upgrade the software.
Technical Parameters
| Model | Basic type | Pro type |
| Item | Ordinary explosion-proof type; two-point monitoring explosion-proof type; intrinsically safe type; two-point monitoring intrinsically safe type; | |
| Accuracy | ±2mm | |
| Measurable wall thickness | max 70mm | |
| Output signal | Liquid level alarm | Available in 3 basic types |
| error alarm | 485 signal MODBUS | |
| 4-20mA (only intrinsically safe type) | PROFIBUS HART | |
| Foundation Field Bus | ||
| Relay capacity | DC 30V 6A/ AC250V 6A | |
| Power supply | DC24V | |
| Power | 1W | 2W |
| Electrical interface specifications | According to actual selection and configuration | |
| Threading hole diameter | Φ8mm (adaptive cable diameter Φ6~8mm) | |
| Explosion-proof signs | Exd II CT6 Gb | Exia II CT6 Ga |
| Shell material | Cast aluminum alloy | |
| Protection level | IP67 | |
| Applicable places | Other explosive gas environments except coal mines | |
| Host applicable ambient temperature | -50℃~+60℃ | |
| The host is suitable for ambient humidity | 15%~100%RH | |
| Ultrasonic probe operating temperature | Ordinary type: -50℃~+80℃; High temperature type: up to 200℃ | |
| Host size | 236/186*125*171.5mm | 155*241*129.4mm |
| Host weight | 2.5kg | 2.6kg |
| Handheld meter communication distance | none | 3 meters |
| Intrinsically safe parameters | Ui:28VDC li:93Ma Pi:0.65W Ci:44Nf Li:11uH | |
| Media requirements: | Pure liquid, milky liquid, suspended liquid, etc. | |
| Container under test: | Material: carbon steel, stainless steel, various hard metals, fiberglass, epoxy resin, hard plastic, ceramics, glass, hard rubber and other materials or other composite materials. | |
| Measurable tank types: | Horizontal tanks, spherical tanks, tank tanks, vertical tanks, etc.; | |
External Ultrasonic Level Controllers Application industry
External Ultrasonic Level Controllers Applicable media
| Liquified Gas | Ethylene | Hydrochloric Acid | Nitric Acid | Sulfuric Acid |
| Propylene | Aqua Carbolisata | Edible Oil | Crude Oil | Lacquer Thinner |
| Brine | Butadiene | Chlorethylene | Light Hydrocarbon | Caustic Soda Liquid |
| Methylamine | Toluene | Light Oil | Gasoline | C3 |
| Kerosene | Xylol | Oxalic Acid | Oxirane | Acetone |
| Carbinol | Ethanol | Dimethyl Ether | Diethyl Ether | Diesel |
More Featured Level Measurement
External Ultrasonic Level Controller is a new type of liquid level monitoring and alarm device. It is mainly used to monitor the liquid level of storage tanks, achieve upper and lower limit alarms or monitor whether there is medium in the pipeline (dry protection). Containers of various shapes such as spherical, vertical, and horizontal can be measured.
In addition to External Ultrasonic Level Controller, we at Sino-Inst also supply other types of ultrasonic level meters. Including explosion-proof ultrasonic level meter, portable ultrasonic liquid level indicator, etc. Support parameter customization. If you need to purchase an External Ultrasonic Level Controller or have related technical questions, please feel free to contact us.
External Ultrasonic Level Controller|Non-Contact Monitor&Control
External Ultrasonic Level Controller | Non-Contact Monitor and Control of Liquid Level (also known as "external liquid level switch") is a new type of liquid level measurement and alarm device. It is mainly used to detect the liquid level of storage tanks and achieve upper and lower limit alarms. Tank temperature display (Hig-Pro type) or monitoring whether there is liquid in the pipeline.
Product SKU: External Ultrasonic Level Controller | Non-Contact Monitor and Control of Liquid Level
Product Brand: Sino-Inst
Product Currency: USD
Product Price: 990
Price Valid Until: 2029-09-09
Product In-Stock: InStock
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