BOY-WR04-SP Pulse tube water level gauge

▋ Product Description

        BOY-WR04-SP pressure pipe water level gauge is a liquid level measuring instrument designed based on the principle of fluid statics, widely used in industrial fields such as petrochemicals, power, water treatment, etc., for monitoring the height of liquid in storage tanks, pipelines or containers. Its core working principle is to measure the linear relationship between liquid static pressure and liquid level height, and convert the pressure signal into a standard electrical signal (such as 4-20mA or RS485 digital signal), thereby achieving accurate monitoring of the liquid level. The device mainly consists of a pressure pipe, a pressure sensor/transmitter, and a signal processing unit. The pressure pipe is made of stainless steel and is connected to the measured container through flanges or threads to ensure stable pressure transmission. According to the working conditions, it can be divided into two types: single flange (suitable for atmospheric pressure environment) and double flange (can eliminate the influence of medium density, adapt to high temperature and corrosive media). The pressure pipe water level gauge has the advantages of compact structure, strong anti-interference ability, and low maintenance cost, especially suitable for complex scenarios with high pressure, high temperature, or volatile media. When using, attention should be paid to the viscosity of the medium, the risk of crystallization, and the problem of pressure pipe blockage. Regular drainage and cleaning can ensure long-term measurement accuracy.

▋ Measurement Method

        BOY-WR04-SP pressure tube water level gauge is based on the principle of fluid statics, and calculates the liquid level height by measuring the static pressure of the liquid. The equipment transmits the pressure at the bottom of the container to the pressure sensor through the pressure conduit. The sensor converts the pressure signal into an electrical signal (such as 4-20mA), which is linearized by the signal processor to display the liquid level value. In response to gas-phase pressure interference, the double flange design uses high and low pressure side pressure guiding pipes to connect the bottom and top of the container respectively, and eliminates the influence of gas-phase pressure through differential pressure transmitters. Filling the pressure tube with sealing liquid or isolation membrane can isolate corrosive media, and the built-in temperature sensor can compensate for the variation of medium density with temperature, ensuring measurement accuracy under complex working conditions. The entire process does not require mechanical moving parts, has strong vibration resistance, and is suitable for continuous and stable industrial liquid level monitoring.

▋ 产品尺寸

▋ Main Function

▋ Product Characteristics 

        BOY-WR04-SP pressure tube water level gauge has the advantages of anti-interference, small temperature drift, high measurement accuracy, good stability, and long service life. By using high-precision sensors and temperature compensation technology to accurately measure liquid levels, the error control can reach ± 0.5%. The main body is made of stainless steel, which can withstand high temperature, high pressure, and strong acid and alkali corrosion. The double flange differential pressure structure eliminates gas phase interference, and the anti crystallization pressure tube design and isolation diaphragm technology effectively avoid medium blockage. No mechanical components ensure strong vibration resistance, flange/thread dual interface simplifies installation, built-in 4-20mA, HART and other multi protocol outputs.

▋ Product Parameter

▋ Application scenarios

        BOY-WR04-SP pressure tube water level gauge is suitable for monitoring the liquid level of pipelines, storage tanks, and containers in industries such as water conservancy, petroleum, chemical, and power. It is particularly suitable for complex working conditions such as high temperature, high pressure, corrosive media, or volatile liquids. It has strong anti-interference and durability characteristics and is commonly used for continuous liquid level measurement in chemical storage tanks, boiler drums, and sewage treatment scenarios.

▋ FAQ

1、What is the difference between a pressure pipe water level gauge and a radar level gauge?

     The impulse pipe water level gauge relies on contact pressure measurement, which is suitable for high temperature, high pressure and foam media; Radar level gauges are non-contact, with higher accuracy but higher cost, and are sensitive to the dielectric constant of the medium.

2、How to install the equipment？

     Choose a place that is easy to operate and maintain for installation; It should be installed as far away as possible from vibration and heat sources; When installing the liquid level transmitter, the metal probe should sink to the bottom of the container.

3、How often does it need to be calibrated？

     It is recommended to calibrate once a year under normal operating conditions; Shorten extreme environments (such as high temperatures and strong corrosion) to six months; If there are data abnormalities or equipment repairs, calibration should be carried out immediately.

4、How to deal with unstable output signals？

     Check if the power supply voltage is stable; Eliminate electromagnetic interference (such as installing shielded cables); Confirm that there are no bubbles or liquid column separation in the pressure guiding pipeline; Restart the device or restore factory settings if necessary.

5、Possible reasons for large measurement errors？

     Common reasons include: blockage/leakage of the pressure tube, failure of temperature compensation, uncalibrated medium density changes, tilted installation position or sensor zero drift, which need to be investigated and recalibrated one by one.