What is underwater pressure transducer?

Underwater pressure transducer refers to a type of pressure sensor that can be used underwater for a long time. The degree of protection of the underwater pressure sensor is IP68. For underwater installation, it is constructed to prevent water from entering sensitive components and damaging the sensor. The shell adopts all stainless steel structure, which has good moisture resistance and excellent media compatibility. The connecting cable emerges with a unique triple seal structure. Unique sealing performance and high sealing reliability.

Underwater Pressure Transducer

underwater pressure sensor

Underwater pressure transducer is also called underwater pressure sensor. It adopts stainless steel integral components, elastomer components, high-precision strain process, high-reliability amplifying circuit and precise temperature compensation. It has stable performance, good EMC electromagnetic compatibility and impact resistance.

GB 304 stainless steel seal welding. The structure is small and compact. It has good moisture resistance and excellent media compatibility.

Adopt waterproof device, reach IP68 waterproof level.

Extended Reading: Wireless Water Meter

submersible pressure transducer

Submersible pressure transducer with 4-20ma is a conventional liquid level measurement sensor. Such as water cans. Cable 0m ~ 300m, minimum range 0.5m.

SI-PCM261 Submersible Pressure Transducer

Submersible pressure transducer with 4-20mA output is Hydrostatic Level Sensor for level measurement. Submersible pressure transducer is based on the measured liquid static pressure proportional to the height of the liquid Principle. Convert static pressure into electrical signal. After temperature compensation and linear correction. Convert into standard electrical signal. Generally 4 ~ 20mA / 1 ~ 5VDC. It can also be called “static pressure liquid level gauge, liquid level transmission Device, liquid level sensor, water level sensor “. Bullet, cage, and flush tip models are available. Applications include pumps, downhole, oil tanks, lime slurry, and water tanks. There is a miniature submersible transmitter that is low power voltage.

ocean/Well water depth sensor

SI-PCM260 Deep Well Water Level Sensor

Deep Well water level sensor is to apply Hydrostatic Level Sensor to deep well. Well water level sensor submerged in deep well work together with submersible water pump. Range within 300m ~ 1000m.

Deep Wells Water level sensor is based on the principle that the measured liquid pressure is proportional to the height of the liquid. The piezoresistive effect of the advanced foreign isolated silicon diffused sensor is used. Change to electrical signal. After temperature compensation and linear correction, convert to 4-20mA standard electrical signal. Well water level sensor submerged in deep well work together with water pump. It is extremely difficult to replace and submit an inspection. Therefore, it adopts stainless steel cable, waterproof, sealing ring, and other four-level seals. Special cables and special water sealing technology make the transmitter highly reliable and stable.

ocean  water depth sensor

For ocean – sea water level measurement, Anti-corrosion materials are recommended. such as tetrafluoroethylene.

Submersible Level Transmitter is made of Anti-corrosive all-tetrafluoroethylene(PTFE) material. It has high temperature resistance, corrosion resistance and anti-clogging.

Submersible level transmitter made of PTFE is perfect in the harshest applications. Like Acid and alkali environment, Sludge and Slurries. Anti-corrosive Submersible Level Transmitter utilizes the linear change law of liquid height, density and pressure. It converts the change of liquid level into linear 4-20mADC standard signal output. Integrate temperature compensation calibration technology. Easy installation. Anti-corrosive Submersible Level Transmitter adopts two-wire system. 4 ~ 20mA output. 24V DC power supply. ATEX, 3 wire, remote mount transmitter optional.

Extended reading: how to calibrate a pressure transmitter

IP68-waterproof pressure sensor

We are all familiar with knowing that to purchase pressure transmitters for underwater use, IP68 needs to be met.

Sino-Inst provides a variety of waterproof pressure sensors that meet IP65-IP67-IP68.

So, what is the IP protection level of the liquid level sensor?

Introduction to Protection Levels

IP is the abbreviation of Ingress Protection. The IP rating is the degree of protection for the enclosure of electrical equipment against the intrusion of foreign objects.

The source is the standard IEC 60529 of the International Electrotechnical Commission.

This standard was also adopted as an American National Standard in 2004.

In this standard, the protection of electrical equipment enclosures against foreign objects.

The format of IP rating is IPXX, where XX is two Arabic numerals.

The first marked number indicates the contact protection and foreign object protection level. The second marked number indicates the waterproof protection level.

IP is the international code used to identify the protection level. The IP level is composed of two numbers. The first number means dustproof. The second number means waterproof. The larger the number, the better the group leader of protection.

In the protection level of the liquid level sensor, the protection level IP68 is the highest level of the waterproof level standard of the connector.

To evaluate the waterproof performance of the waterproof connector, it mainly depends on the two digits XX after the IPXX. The first X is from 0 to 6, and the highest level is 6. The second X is from 0 to 8, the highest level is 8;

Extended Reading: Resistive Pressure Transducer

analog water pressure sensor

Analog signal refers to information represented by a continuously changing physical quantity. The amplitude, or frequency, or phase of the signal changes continuously with time. In engineering, the output analog signal is generally 4-20mA or 1-5V electrical signal.

An analog signal is one in which the information parameters appear as continuous signals within a given range. Or in a continuous time interval. The characteristic quantity of its representative information can be presented as a signal of any value at any instant.

Analog Water Pressure Sensor means that the sensor that measures water pressure can output 4-20mA or 1-5V electrical signal.

Extended reading: How to convert a 4-20mA to 0-10V /1-5V signal?

The water pressure transducer is the most commonly used pressure transmitter in the field of industrial automation. It is widely used in pressure measurement and control of water supply equipment, building water supply system, residents, workshops, water conservancy, chemical industry, medical treatment, electric power, air conditioning, diamond press, metallurgy, vehicle braking, etc. The water pressure transmitter will have an immeasurable role in the future automation industry.

The core of the water pressure transmitter is usually made of diffused silicon. The working principle is that the pressure of the measured water pressure acts directly on the diaphragm of the sensor. Make the diaphragm produce a micro-displacement proportional to the water pressure. Change the resistance value of the sensor. and detect this change electronically. And convert and output a standard measurement signal corresponding to the pressure.

You can use a water pressure gauge to connect to the water pipe to measure. Ordinary oil pressure gauges can also be used temporarily, but pay attention to the range. The pressure is generally below 3MPa, which can be roughly estimated in this way.

Extended Reading: 3 inch (3″) Water Flow Meter

psi is an imperial unit of pressure. INH2O is the input mm water column. Units can be interchanged.

1 Inches of water = 0.0361 Pounds per square inch10 Inches of water = 0.3613 Pounds per square inch2500 Inches of water = 90.3157 Pounds per square inch
2 Inches of water = 0.0723 Pounds per square inch20 Inches of water = 0.7225 Pounds per square inch5000 Inches of water = 180.63 Pounds per square inch
3 Inches of water = 0.1084 Pounds per square inch30 Inches of water = 1.0838 Pounds per square inch10000 Inches of water = 361.26 Pounds per square inch
4 Inches of water = 0.1445 Pounds per square inch40 Inches of water = 1.4451 Pounds per square inch25000 Inches of water = 903.16 Pounds per square inch
5 Inches of water = 0.1806 Pounds per square inch50 Inches of water = 1.8063 Pounds per square inch50000 Inches of water = 1806.31 Pounds per square inch
6 Inches of water = 0.2168 Pounds per square inch100 Inches of water = 3.6126 Pounds per square inch100000 Inches of water = 3612.63 Pounds per square inch
7 Inches of water = 0.2529 Pounds per square inch250 Inches of water = 9.0316 Pounds per square inch250000 Inches of water = 9031.57 Pounds per square inch
8 Inches of water = 0.289 Pounds per square inch500 Inches of water = 18.0631 Pounds per square inch500000 Inches of water = 18063.14 Pounds per square inch
9 Inches of water = 0.3251 Pounds per square inch1000 Inches of water = 36.1263 Pounds per square inch1000000 Inches of water = 36126.28 Pounds per square inch


Wireless Water Level Sensor

The Wireless Level Sensor upgrades the LoRa wireless transmission function based on the Hydrostatic Level transmitter. Measure water or oil level. This product adopts the LORA debugging method, which can greatly increase the communication distance. It can be widely used in the field of short-distance Internet of Things wireless communication in various occasions.

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Frequently Asked Questions

Underwater pressure sensors are also called Submersible pressure transducers, or Submersible level transmitters.

Underwater pressure sensors are composed of a pressure sensor, a signal amplifier and a conversion circuit, which can be directly put into the water.

A silicon semiconductor pressure sensitive element is used as the detection element. A pressure sensitive element placed in the fluid interacts with the pressure in the depth of the fluid. Using the piezoresistive effect of silicon material, there will be an electrical signal output. So as to offset the impact of changes in the external atmospheric pressure, to ensure the accuracy of the measurement.

At present, the role of the water pressure sensor is mainly manifested in the following aspects:

  1. Determination of water pressure values in outdoor areas such as rivers, rivers, lakes and seas.
  2. Measurement of the pressure value of the water tank of automobiles and some high-end motorcycles.
  3. In various liquid level measurement sites, it can be used as a liquid level gauge.
  4. In the aerospace field, the water pressure measurement in the spacecraft also applies the water pressure sensor.
  5. Store and display the water pressure information of various fishing grounds. The high-end water pressure sensor can even directly control the water pressure changes in the fishing grounds.

Sino-Inst is a manufacturer of Underwater Pressure Transducers. Sino-Inst provides customers with the best water level measurement price.

Sino-Instrument offers detailed product specifications and data sheets for review. Our application engineers, can help ensure you choose exactly what you need for your specific installation. Or if you need the RFQ instantly, we can offer you with the submersible level transmitter price immediately.

Sino-Inst offers over 50 Underwater Pressure Transducers at best price.

About 50% of these are Submersible Pressure Transducer, 40% are Differential Pressure Gauge, and 40% are Diaphragm Seal Pressure transmitters.
A wide variety of Underwater Pressure Transducer options are available to you, such as free samples, paid samples. 

Sino-Inst is a globally recognized supplier and manufacturer of Underwater Pressure Transducer, located in China. Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Underwater Pressure Transducer products are most popular in Domestic Market, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

Readd more about: [What is and How it Works]Hydrostatic Level Sensor

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