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:
| 3000- | Intelligent Ultrasonic Liquid Level Gauge |
Main
material | N | Integrated liquid level gauge |
| F | Split-type liquid level gauge | A | Wall-mounted |
| B | Panel mounted |
| M | Open-channel meter | A | Wall-mounted |
| B | Panel mounted |
| C | ultrasonic level difference sensor |
| Range | 1 | 0~5m |
| 2 | 0~10m |
| 3 | 0~15m |
| 4 | 0~20m |
| 5 | 0~30m |
| Power supply | D | 24V DC |
| G | 220VAC |
| Output | 1 | 4~20mA(Two-wire system) |
| 2 | 4~20mA(Three-wire system or four-wire system) |
| 3 | 4~20mA+relay |
| 4 | RS-485,4~20mA |
| 5 | RS-485,4~20mA+relay |
| Accuracy | A | 0.25% |
| B | 0.5% |
| Material | O | Non-antibacterial |
| F | Antiseptic |
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.
