Explosion-proof Ultrasonic Liquid Level Gauge

1. Product Brief Introduction:

Ultrasonic level gauge is widely used for liquid level and volume measurement in tanks, water tanks, reservoirs, and also for flow measurement in open channels. In practical applications, many interfaces cannot be touched, such as situations where the measurement equipment is corroded (by acids or alkalis), contaminated by the measurement equipment (in sewers), or where substances that cause adhesion (adhesives) are present on the measurement device. Since the measurement technology of the integrated ultrasonic level meter is based on the non-contact ultrasonic principle, the integrated ultrasonic level meter is suitable for liquid and material level positions that cannot be accessed by physical means.

2. Product Feature:

◆ Safe/using die cast aluminum alloy waterproof and explosion-proof shell; The explosion-proof level of the instrument reaches Exd (ia) Ⅱ BT4.

◆ Stable and reliable/We select high-quality modules and key components from the power supply section during circuit design, and choose highly stable and reliable devices for procurement, which can completely replace imported instruments from abroad.

The patented technology/ultrasonic intelligent technology software can perform intelligent echo analysis without any debugging or other special steps. This technology has the functions of dynamic thinking and dynamic analysis.

◆ High precision/Our company's patented sound wave intelligent technology greatly improves the accuracy of the ultrasonic level gauge, with a level accuracy of 0.3% and the ability to resist various interference waves.

◆ Low failure rate, easy installation, and easy maintenance/This instrument is a non-contact instrument that does not come into direct contact with liquids, so the failure rate is relatively low. The instrument provides multiple installation methods, and users can calibrate the instrument completely through this manual. Multiple protection/instrument protection levels reach IP65; All input and output lines have lightning protection and short-circuit protection functions.

3. Technical Specifications:

Measurement range: 0-20m (each range can be set, specially customized);
Blind zone: 0.25m to 0.5m;
Distance measurement accuracy: 0.3%;
Distance measurement resolution: 1mm;
Pressure: below 3 atmospheres;
Instrument display: Equipped with LCD to display liquid level or spatial distance;
Analog output: 4-20mA four wire system;

Digital output: RS485, Modbus protocol or customized protocol;
Power supply voltage: DC24V/AC220V, built-in lightning protection device;
Environmental temperature: -20 ℃ to+60 ℃; Protection level: IP65.

s of the intelligent type HQ1151/3051/3351/3851 flange level transmitter

4. Selection:

5. Installation:

1) The distance from the sensor emission surface to the lowest liquid level should be less than the range of the selected instrument.
2) The distance from the sensor emission surface to the highest liquid level should be greater than the blind spot of the selected instrument.
3) The emission surface of the sensor should be parallel to the liquid surface.
4) The installation position of the sensor should try to avoid positions where the liquid level fluctuates violently, such as the inlet and outlet directly below.
5) If the pool wall or tank wall is not smooth, the instrument needs to be at least 0.3m away from the pool wall or tank wall.
6) If the distance from the sensor emission surface to the maximum liquid level is less than the blind spot of the selected instrument, an extension tube should be installed with a diameter greater than 120mm and a length of 0.35m to 0.50m. The extension tube should be installed vertically with a smooth inner wall, and the opening on the tank should be larger than the inner diameter of the extension tube. Alternatively, the pipe can be directly connected to the bottom of the tank, with a diameter greater than 80mm, and a hole can be left at the bottom of the pipe to facilitate the flow of liquid.