Automatic power adjustment, gain control and temperature compensation.
Advanced detection technology and rich software functions adapt to various complex environments.
The new waveform calculation technology is adopted to improve the measurement accuracy of the instrument.
The suppression function of interference echo ensures the authenticity of measurement data.
16 bit D/A conversion to improve the accuracy and resolution of current output.
The sensor is made of tetrafluoroethylene and can be used in various corrosive situations.
Various output forms: programmable relay output, high-precision 4-20mA current output, Rs-485 digital communication output split ultrasonic liquid level probe.
Main parameters of integrated ultrasonic level gauge
Measuring range: 0-3, 5, 8, 10, 15, 20, 30, 40, 50 100m (model: QF-8000).
Accuracy: 0.25%
Blind zone: 0.15-0.7m.
Working temperature: -20℃-+60℃
Pressure range:-1- 16kg (model: QF-8000 or QF-9000 series)
Power supply: 24V DC, 220V AC.
Output: 4-20mA, Rs-485
Control: bidirectional relay
Protection grade: IP68
Display mode: 12864 point LCD display.
Corrosion resistant sensor housing
Main parameters of typing ultrasonic level gauge
Range: 0-3, 5, 8, 10, 15, 20m, 30, 40, 50, 60, 70m (model: QF-9000).
Accuracy: 0.25%
Blind zone: 0.15-1.2m.
Working temperature: transmitter -20℃-55℃, sensor -25℃-80℃
Pressure range:-1- 16kg (model: QF-8000 or QF-9000 series)
Power supply: 24V DC, 220V AC.
Output: 4-20mA, Rs-485
Control: Four-way relay
Protection grade: IP68
Display mode: 12864-point liquid crystal display corrosion-resistant sensor housing works with tetrafluoroethylene AL305 ultrasonic level gauge, high-frequency pulse sound waves are emitted by the transducer (probe), and are reflected when they meet the surface (water surface) of the measured object, and the reflected echoes are received by the same transducer (probe) and converted into electrical signals. The time between pulse sending and receiving (the moving time of sound wave) is directly proportional to the distance from the transducer to the surface of the object. The relationship between sound wave propagation distance S and sound velocity C and propagation time T can be expressed by the formula: S = C ⅹ t/2.
When installing the ultrasonic level gauge, the blind area of the ultrasonic level gauge must be considered. When the liquid level enters the blind zone, the ultrasonic transmitter cannot measure the liquid level, so when determining the range of the ultrasonic level gauge, a margin of 50 cm must be reserved. When installing, the probe of the transmitter must be about 50 cm above the maximum liquid level. Only in this way can the accurate monitoring of liquid level and the safety of ultrasonic level gauge be guaranteed.
In actual use, the liquid level meter is completely damaged due to poor installation consideration.
Characteristics of SGM ultrasonic level gauge
Low price, small size and light weight, it can be used for non-contact liquid level measurement of liquids and bulk solids in food, chemical industry, semiconductor and other industries, and can be used for remote liquid level monitoring and pump control.
Attention should be paid during mechanical installation: the installation should be perpendicular to the surface of the measured object, avoiding measuring objects with foam properties, and the distance from the surface of the measured object should be smaller than the blind area (blind area: every product will have a standard, and this standard will be known with the product). It should be considered that the beam should avoid blocking substances and not meet the pouring mouth and container wall. When detecting large solid objects, the direction of the probe should be adjusted to reduce the measurement error. Water supply and drainage treatment: pump house, collecting well, biochemical reaction tank, sedimentation tank, etc.
Electric power and mine: mortar pool, coal slurry pool and water treatment have strong anti-interference ability. Upper and lower nodes and online output adjustment can be set at will, with on-site display, and analog, switch and RS485 output can be selected to facilitate interface with related facilities.
Adopt polypropylene waterproof shell. The shell is small and strong, with excellent chemical resistance. For inorganic compounds, no matter acid, alkali or salt solution, there is almost no destructive effect except strong oxidizing substances. It is almost insoluble in all solvents at room temperature, and can be used in general alkanes, hydrocarbons, alcohols, phenols, aldehydes, ketones and other media.
Light weight, no scaling and no medium pollution.
No toxicity. Can be use for equipment installation in pharmaceutical and food industries, and is extremely convenient to maintain. Range: 0.3 ~ 5m, 0.3 ~ 8m, 0.5 ~ 12m.
Blind area:
Emission angle: 12 Minimum display resolution:1mm.
Accuracy: 0.3% × range
Display: 4-position 8-segment: 0.5-inch LED
Working frequency: 20 kHz ~ 43.0 kHz (depending on model and specification)
On-site setting: calibration is completed through the button of liquid level meter: factory calibration, which can be calibrated on site.
Analog output signal: 4 ~ 20ma load >: 300Ω; 0 ~ 5V 1~5V
Digital output: RS485 (supporting Modbus) NPN switch output.
Working voltage: DC12-24v power consumption.
Overall dimensions: φ 83× 145× M65.
Shell material: PP
Weight: 272g (5m); 4 10/0g (12m)
Installation method: external straight pipe thread M65× 1.5
Protection grade: IP65
Temperature:-10℃ ~ 60℃ 1, measure flow, liquid level, low gauge pressure, vacuum and specific gravity.
2. The maximum range of two-wire system can reach 30m.
3. The maximum range of four-wire system can reach 40m.
4. The minimum resolution is1mm.
5.LCD/LED large display screen
6. Intelligent signal processing technology
7. Equipped with high and low double relays (four-wire system only)
8. All-plastic anticorrosive shell (protection grade lP67)
9. Patented sensor structure (there is no requirement for the length of the flange nozzle when installing the flange of small-range level gauge).
10, simple key setting parameters (no need to wait for the container to be emptied or filled, no need for additional remote control)
1 1. Flexible installation method (thread/flange, fixing hole/bracket)
12, AC or DC power supply is optional (four-wire system only)