The external mounted liquid level gauge adopts the principle of sonar ranging and utilizes external mounting

A dedicated probe outside the container wall collects sonar signals to

Using sonar wave processing technology as the system core, adopting advanced

High speed signal processing technology, utilizing specialized computing from Shaanxi Sound Technology

Accurately calculate the liquid level inside the container. Calculated liquid level

The value is displayed locally and a remote signal is output. Instruments can be accessed through

(4-20) mA analog signal, HART, RS-485 and other interfaces

Output the measurement results to the control center, and also

Online through interfaces such as HART, RS-485, infrared, etc

debugging

1. Pioneering two line system

Breaking through various technical difficulties, we have successfully developed a two wire externally attached liquid level gauge.

The two wire external mounted liquid level gauge achieves ultra-low power consumption and reaches industrial sites

The two-wire instrument standard simplifies on-site wiring requirements and is more conducive to safety prevention

Explosion.

2. Non contact liquid level measurement, safe

Realize true non-contact measurement, making installation and maintenance greatly simple and convenient.

3. Advanced automatic power control algorithm,

Can achieve small blind spots or no blind spots

When the liquid level is high, use higher power, and when the liquid level is low, use

Automatically switch probe power with lower power. This not only increases the measurement range, but also,

Reduced measurement blind spots again. Thus achieving small blind spots or even no blind spots

Measurement of.

4. Ultra high measurement accuracy, up to 1 ‰ FS

Automatic power control calculation through the built-in bottom boundary false wave suppression function

Method, automatic sampling rate control algorithm, and other functions greatly improve measurement accuracy

In some practical cases, the absolute accuracy is within 1cm.

5. Simultaneous measurement of liquid level boundary

It is possible to measure both liquid level and boundary level simultaneously. Configurable analog quantity, 485 and

The Modbus output is the limit or liquid level.

6. Equipped with bottom boundary false wave suppression function

In some cases, there may be other media at the bottom of the storage tank, which can form

The interface will affect the transmission of signals, thereby affecting normal measurement. This feature

It will automatically identify false waves, skip false waves, and search for the true echo signal.

7. Real time measurement of tank temperature and remote transmission of temperature signals

It can measure the temperature of the storage tank in real time and measure it through analog or digital signals

Remote transmission of temperature signals

8. Real time temperature calibration to improve measurement accuracy

Real time measurement of tank temperature for a certain degree of temperature compensation

For common media such as liquid ammonia, propylene, propane, LPG, etc

Sound velocity compensation can be used to further improve measurement accuracy.

9. Automatic calibration and self diagnosis functions

The automatic calibration function of the external mounted liquid level gauge overcomes the traditional liquid level

The problem of reduced accuracy after prolonged use. Their understanding of their own work status and

The hardware diagnostic function increases the reliability and stability of the externally mounted liquid level gauge,

.

10. Pipeline calibration, automatically enabled

When the liquid level is below half, the calibration probe on the side cannot be aligned

Normally calibrated, the liquid level gauge automatically enables pipeline calibration through the inlet and outlet pipelines

Conduct real-time calibration to further improve measurement accuracy.

11. Full range real-time tracking, no need to restart when entering empty tanks

Whether it is an empty tank or liquid, regardless of the level, the liquid level gauge can

Full range real-time tracking.

12. Installation and debugging are greatly simplified

The liquid level gauge is highly intelligent, greatly reducing on-site installation and debugging work,

Implement foolproof installation.

13. There are multiple options for displaying remote indicators on the liquid level gauge

The liquid level gauge can display remote liquid level, liquid level percentage, volume, and mass

Etc.

14. With relay output

Can achieve single point alarm or dual point alarm output.