The external ultrasonic tank level sensors is the first choice for measuring liquid level and material level on various industrial tanks.

Features of External Ultrasonic Tank Level Sensor

• The probe is external, no need to open a hole to the container under test.. Really realize non-contact measurement.
• It is suitable for accurate measurement of the liquid level of toxic, volatile, flammable, explosive, and highly corrosive liquid media in various closed containers.
• The instrument has no mechanical moving parts and has a long life. No corrosion, no pollution, wide use area.
• The instrument has built-in ASIC (Intelligent Ultrasonic Special Hardware Integrated Circuit), which makes the instrument small in size, stable and reliable in measurement results. It can be suitable for all kinds of liquids and containers to be tested, and it is easy to install on site without complicated on-site calibration.
• The instrument has built-in various calibration functions such as automatic temperature correction and automatic fixed distance calibration. The measurement results are more accurate and reliable.
• The instrument has complete functions, with RS485 output, 4-20mA output, and switch output.
• Multiple power supply methods available
• Backup and restore configuration parameters
• The analog output can be adjusted arbitrarily
• With digital filtering and echo recognition functions
• Fixed interference filtering function can be manually set
• Support Bluetooth, GPRS communication, GPS satellite positioning, etc. (Order to buy)
• Support custom serial data format
• Support custom main display interface
• Support MiniSD card data collection (order option)

Extended reading: The Secret of Ultrasonic Level Measurement

Technical Parameter of External Ultrasonic Tank Level Sensor

Range	1m, 3m, 5m, 8m, 10m, 15m, 20m, 25m, 30m
Accuracy	±1mm-±0.3%FS
	different from the sensor, too thick tank wall, unstable pressure and temperature may affect accuracy
Display	Chinese and English large screen LCD, color screen TFT (optional)
Display resolution	1MM
Output	4～20mA (maximum load 350Ω), RS485, switch value, TF card, GPRS, GPS
Power supply	DC12-24V or AC220V
Shell material	cast aluminum
Protection level	IP65
Probe material	ABS
Installation method	direct magnetic adsorption or adhesive transfer sheet (ferromagnetic), then magnetic adsorption
Sensor outlet cable	with standard 10M (optional length, optional sensor cable sheath)
Dimensions	host 230X210X129/135X180X86
Electrical interface specification	M20X1.5
Diameter of threading hole	5-15mm
Material	Copper plating
Power inlet cable	10m (optional length)
Ambient temperature of the host	-20℃~+70℃
The ambient temperature of the ultrasonic probe	-40℃～+100℃
Humidity	15%～100% RH

Extended reading: Guide to Ultrasonic Level Transmitters

Application Industry:

1. Pharmaceutical manufacturing industry: liquid level control of reaction liquid in pipelines and storage tanks, etc.
2. Petrochemical industry: oil pipeline, internal liquid level control of storage tanks, etc.
3. Food industry: liquid level detection and monitoring projects in brewing, beverage, milk production, storage tanks, pipelines, etc.

Read more about: 7 Level Senors for Tank Level Measurement

Application Conditions:

Media Purity

the liquid cannot be filled with dense bubbles. A large amount of solids, such as crystals, cannot be suspended in the liquid.The bottom of the container cannot deposit a large amount of sand and sediment.

Medium Viscosity

When the dynamic viscosity is less than 10mPaS, it is measured normally. When 10mPaS<dynamic viscosity<30mPaS, the range of the instrument may be reduced. It cannot be measured when the dynamic viscosity is >30mPaS.

note: As the temperature increases, the viscosity decreases, and most high-viscosity liquids are more affected by temperature. Therefore, pay attention to the effect of liquid temperature when measuring viscous liquids.

Container Under Test

1. Material: The container wall where the measuring probe is installed is required to be made of hard materials that can transmit signals well. Examples: carbon steel, stainless steel, various hard metals, glass steel, hard plastics, ceramics, glass, hard rubber and other materials or their composite materials. If the container wall where the measuring probe is installed is of multilayer material, the layers should be in close contact with no bubbles or gas interlayers. The inner and outer surfaces of the container wall should be flat. Examples: vulcanized hard rubber lining, stainless steel lining, titanium lining Floor.
2. Wall thickness: 1-100mm
3. Tank type: spherical tank, horizontal tank, vertical tank, etc.

Probe Installation Requirements:

1. For iron containers, you can apply silicone grease to the working end of the probe and stick it directly to the bottom of the container with a magnetic suction cup; if the container shell is made of glass or other materials, you can use glue to fix the probe or use a bracket to fix it. The bottom of the container. The probe point must be on the same straight line as the measured distance.
2. There are no obstructions such as coils directly above the probe;
3. Keep away from the liquid inlet at the bottom of the tank to avoid the influence of the violent flow of the liquid on the measurement;
4. Keep away from the position below the liquid inlet on the top of the tank to avoid the impact of the liquid inlet and the violent fluctuation of the liquid level to affect the measurement;
5. It is higher than the liquid outlet or the sewage outlet to avoid the influence of long-term deposits on the bottom of the tank on the measurement. If the conditions are not met, measures should be taken to ensure that the bottom of the tank is regularly removed;
6. When the liquid level measuring head is installed by magnetic or welding/adhesive fixing method, the installation surface size on the container wall should not be less than the round surface of Ф80, the surface roughness should reach 1.6, and the inclination should be less than 3°(bypass pipe exce

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Sino-Inst offers over 10 External Ultrasonic Tank Level Sensors and transmitters for level measurement. About 50% of these are liquid level meters, 40% is the level switches.

A wide variety of External Ultrasonic Tank Level Sensors and transmitters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of External Ultrasonic Tank Level Sensors and transmitters instrumentation, located in China.

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