The SG series is designed for external measurement in containers, storage tanks, silos, and other applications with complex process conditions. It is unaffected by changes in the physical properties of the measured medium. 

Key features include:

1.Two-wire technology

2.Suitable for explosion-proof environments

3.Non-contact and continuous measurement

4.Pulsed radar level meter with a maximum measurement distance of 70 meters .

• No dead zones at the bottom, with high precision.

• Utilizes two-wire technology, serving as an excellent alternative to differential pressure instruments, magnetostrictive, RF admittance, and magnetic flip-board instruments.

• Unaffected by vacuum, pressure fluctuations, temperature changes, inert gases, dust, steam, or other environmental factors.

4.Easy installation, robust and durable construction, and maintenance-free operation.

• Supports HART or PROFIBUS-PA communication protocols as well as Foundation Fieldbus protocols. Calibration is simplified via digital LCD display for on-site adjustments and SGPF software for intuitive configuration and programming.

• High measurement sensitivity and fast response speed.

• Suitable for high-temperature environments, with operating temperatures up to 200°C. When equipped with high-temperature extended antennas, performance is maintained at up to 350°C.

The SG1 series radar level gauge is suitable for non-contact continuous measurement of liquid, slurry, and granular material levels. It is designed for environments with significant temperature and pressure fluctuations, as well as those containing inert gases or volatile substances.

The device employs a microwave pulse measurement method and operates normally within the industrial frequency band. With low beam energy, it can be installed in various metallic or non-metallic containers or pipelines without causing harm to humans or the environment.

The radar level gauge emits low-energy, ultra-short microwave pulses through an antenna system, which are then received after reflecting off the material surface. The radar waves travel at the speed of light, and the travel time is converted into a level signal by electronic components. A specialized time extension method ensures stable and precise measurements within extremely short timeframes. Even in complex environments with false echoes, advanced microprocessor technology and diagnostic software can accurately identify the true material surface echo.

The antenna captures the reflected microwave pulse and transmits it to the electronic circuitry. The microprocessor analyzes the signal to identify the echo generated at the material surface. Intelligent software ensures accurate echo recognition with millimeter-level precision. The distance D to the material surface is proportional to the pulse travel time T, calculated as D=(C*T)/2, where C is the speed of light. Given the known empty tank height E, the actual level L is derived as L=E−D.

Configuration requires inputting the empty tank height E (= zero point), full tank height F (= full scale), and application parameters. These parameters automatically adapt the instrument to the measurement environment, with the level signal corresponding to a 4–20 mA output.

Debugging SG can be achieved through three methods:

    Via the Display Adjustment Module (GPM).

    Via the debugging software SGPF SOFTWARE.

    Via HART handheld programming.

Field Programming Module (GPM):

The GPM programmer consists of 6 buttons and 1 LCD screen, capable of displaying adjustment menus and parameter settings. Its functionality is equivalent to that of an analytical processing instrument.

The radar sensor can be debugged via software regardless of the signal output type (4–20 mA/HART, Profibus PA). When using the SGPF software for debugging, a CONNECTCAT driver is required for the instrument. The software and CONNECTCAT driver can be ordered as optional accessories. During software debugging, the radar instrument must be powered with 24VDC. Additionally, a 250Ω resistor must be added at the front end of the HART adapter. However, if the instrument is equipped with an integrated HART resistor (internal resistance of 250Ω), no external resistor is needed. In this case, the HART adapter can be connected in parallel with the 4–20 mA signal line.