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UTG21-HE two-wire explosion-proof ultrasonic level gauge
UTG21-HE two-wire explosion-proof ultrasonic level gauge
Product details
Thank you sincerely for choosing our company's explosion-proof productsUltrasonic level gaugeYe Li is a professional manufacturer of ultrasonic level gauges, and for details on how much the split type explosion-proof ultrasonic level gauge costs, please consult customer service. We offer discounts for larger quantities! This instrument contains multiple patented technologies and is characterized by safety, cleanliness, high precision, long service life, stability and reliability, and easy installation and maintenance. It is suitable for various fields such as acid, alkali, salt, corrosion prevention, and high temperature. This instrument can be connected to display meters or various DCS systems through 4-20mA or RS485 (Modbus protocol or other customized protocol), providing real-time liquid level data for industrial automation operation.
Ye Liexplosion-proofUltrasonic level gaugeHas the following characteristics:
Ye Liexplosion-proofUltrasonic level gaugeHas the following characteristics:
The circuit design selects high-quality power modules from the power supply section, and the components are imported with high stability and reliability, which can completely replace imported instruments of the same type.
The patented sound wave 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.
Our company's patented sound wave intelligent technology greatly improves the accuracy of the instrument, with a liquid level accuracy of 0.3% and the ability to resist various interference waves.
This instrument is a non-contact instrument that does not come into direct contact with liquids, resulting in a low failure rate. The instrument provides multiple installation methods, and users can calibrate the instrument completely through this manual.
The input and output lines of the instrument have lightning protection, overcurrent, and overvoltage protection.
The patented sound wave 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.
Our company's patented sound wave intelligent technology greatly improves the accuracy of the instrument, with a liquid level accuracy of 0.3% and the ability to resist various interference waves.
This instrument is a non-contact instrument that does not come into direct contact with liquids, resulting in a low failure rate. The instrument provides multiple installation methods, and users can calibrate the instrument completely through this manual.
The input and output lines of the instrument have lightning protection, overcurrent, and overvoltage protection.
2Technical indicators
Measurement range: 0-15m (selected according to the actual measurement range)
Blind zone: 0.25m to 0.5m
Distance measurement accuracy: ± 0.3% FS (standard conditions *)
Distance measurement resolution: 1mm
Pressure: below 4 atmospheres/altitude less than 2000 meters
Instrument display: Equipped with LCD to display liquid level or spatial distance
Power supply voltage: DC18V~36V/20mA, built-in lightning protection device
Analog output: 4-20mA loop current output, load less than 400 ohms
Environmental temperature: -20 ℃ to+60 ℃
Process temperature: -20 ℃ to+90 ℃ (requirements must be specified when ordering if exceeding+70 ℃)
Protection level: IP65
Explosion proof grade:Ex d（ia）ⅡBT6
* FSThe largest range of explosion-proof ultrasonic level gauge;*Standard conditions: 25℃±5℃, indoor environment without wind.
Measurement range: 0-15m (selected according to the actual measurement range)
Blind zone: 0.25m to 0.5m
Distance measurement accuracy: ± 0.3% FS (standard conditions *)
Distance measurement resolution: 1mm
Pressure: below 4 atmospheres/altitude less than 2000 meters
Instrument display: Equipped with LCD to display liquid level or spatial distance
Power supply voltage: DC18V~36V/20mA, built-in lightning protection device
Analog output: 4-20mA loop current output, load less than 400 ohms
Environmental temperature: -20 ℃ to+60 ℃
Process temperature: -20 ℃ to+90 ℃ (requirements must be specified when ordering if exceeding+70 ℃)
Protection level: IP65
Explosion proof grade:Ex d（ia）ⅡBT6
* FSThe largest range of explosion-proof ultrasonic level gauge;*Standard conditions: 25℃±5℃, indoor environment without wind.
2. Installation method
In open environments, bracket installation is generally used, and the instrument is fixed with its own flange. Cut a circular hole slightly larger than the probe diameter (60mm) in the installation position of the pool or tank, place the instrument in it, and then tighten the flange from bottom to top. The installation must ensure that the probe surface of the instrument is level with the measured liquid level,explosion-proofUltrasonic level gaugeThere are three installation methods to choose from.
2.5 Installation precautions
1) When installing instruments outdoors, it is recommended to install sun visors to extend the service life of the instruments.
2) Please make sure to tighten or block the waterproof joints at the cable inlet and outlet to prevent water from entering the instrument.
3) Although the instrument itself has lightning protection devicesexplosion-proofUltrasonic level gaugeWhen the instrument is used in areas with frequent thunderstorms, it is recommended to install specialized lightning protection devices at the inlet and outlet of the instrument.
1) When installing instruments outdoors, it is recommended to install sun visors to extend the service life of the instruments.
2) Please make sure to tighten or block the waterproof joints at the cable inlet and outlet to prevent water from entering the instrument.
3) Although the instrument itself has lightning protection devicesexplosion-proofUltrasonic level gaugeWhen the instrument is used in areas with frequent thunderstorms, it is recommended to install specialized lightning protection devices at the inlet and outlet of the instrument.
4) When the instrument is used in extremely hot and cold places, where the ambient temperature may exceed the working requirements of the instrument, it is recommended to install high-temperature and low-temperature devices around the level gauge.
3. Troubleshooting
3.1 Distance displayed on the instrument panelLNot equal to the distance from the probe to the liquid surface
Indicating that the instrument did not measure the correct liquid level and instead measured an incorrect target object, such as protrusions, steps, beams, or enlarged blind spots at the end of extension pipes. Please locate the target object at the distance L displayed on the instrument. If the maximum liquid level is below the target object, it can be avoided by setting a blind spot (in menu P06). If the maximum liquid level will submerge the target, it can only be avoided by reducing the reflection echo of the target object, changing the installation position of the probe, tilting the probe appropriately, and adding a waveguide (see 3.4 for details).
3.2 The liquid level data fluctuates greatly
If the data fluctuation is less than 5cm, the response speed can be reasonably selected through the P05 menu to solve the problem. If the data fluctuation is greater than 5cm, it indicates that there is a significant ripple in the power supply and ground air. Solution: Equip the instrument with a separate DC24V power supply; Add a 4-20mA isolator;explosion-proofUltrasonic level gaugeMethods such as good grounding of instruments.
3. Troubleshooting
3.1 Distance displayed on the instrument panelLNot equal to the distance from the probe to the liquid surface
Indicating that the instrument did not measure the correct liquid level and instead measured an incorrect target object, such as protrusions, steps, beams, or enlarged blind spots at the end of extension pipes. Please locate the target object at the distance L displayed on the instrument. If the maximum liquid level is below the target object, it can be avoided by setting a blind spot (in menu P06). If the maximum liquid level will submerge the target, it can only be avoided by reducing the reflection echo of the target object, changing the installation position of the probe, tilting the probe appropriately, and adding a waveguide (see 3.4 for details).
3.2 The liquid level data fluctuates greatly
If the data fluctuation is less than 5cm, the response speed can be reasonably selected through the P05 menu to solve the problem. If the data fluctuation is greater than 5cm, it indicates that there is a significant ripple in the power supply and ground air. Solution: Equip the instrument with a separate DC24V power supply; Add a 4-20mA isolator;explosion-proofUltrasonic level gaugeMethods such as good grounding of instruments.
3.3 Physical Image Display
3.4 LCD without display
Please check the power supply voltage and startup current of the instrument first. The power supply voltage must be greater than 18V. The startup current of the instrument is around 3.5mA. If the startup current is greater than 4mA or less than 2.5mA, the instrument must be returned to the factory for maintenance.
3.5 The instrument cannot measure the liquid level perhaps The first row of the instrument LCD displays continuously“-----”
Please check if the measurement range exceeds the instrument range (increase the instrument range upon returning to the factory); Is the probe vertical; Whether there is foam or floating objects on the liquid level (use stilling well or wave adding catheter, see 3.4 for details); When the liquid level is high or close, the instrument can display data, while when the liquid level is low or far, the instrument displays - (probe power is insufficient, return to the factory to replace the probe).
3.6 The liquid level of the instrument matches the actual value, but the current output is incorrect
First enter menu P09 and fix the output current of the instrument to 20.000mA. Then use an ammeter to check if the output current of the instrument is equal to 20.000mA. If the output is correct, please check the instrument panel PLC、 Is the 20mA setting of the digital display consistent. If the output is incorrect, the instrument must be returned to the factory for repair.
[Note] If measuring current with a multimeter, it is necessary to confirm whether the battery of the multimeter is sufficient and whether the internal fuse is intact. The battery of the multimeter is insufficient, resulting in a higher current value. The current value is 0, and the internal fuse is broken.
3.4 LCD without display
Please check the power supply voltage and startup current of the instrument first. The power supply voltage must be greater than 18V. The startup current of the instrument is around 3.5mA. If the startup current is greater than 4mA or less than 2.5mA, the instrument must be returned to the factory for maintenance.
3.5 The instrument cannot measure the liquid level perhaps The first row of the instrument LCD displays continuously“-----”
Please check if the measurement range exceeds the instrument range (increase the instrument range upon returning to the factory); Is the probe vertical; Whether there is foam or floating objects on the liquid level (use stilling well or wave adding catheter, see 3.4 for details); When the liquid level is high or close, the instrument can display data, while when the liquid level is low or far, the instrument displays - (probe power is insufficient, return to the factory to replace the probe).
3.6 The liquid level of the instrument matches the actual value, but the current output is incorrect
First enter menu P09 and fix the output current of the instrument to 20.000mA. Then use an ammeter to check if the output current of the instrument is equal to 20.000mA. If the output is correct, please check the instrument panel PLC、 Is the 20mA setting of the digital display consistent. If the output is incorrect, the instrument must be returned to the factory for repair.
[Note] If measuring current with a multimeter, it is necessary to confirm whether the battery of the multimeter is sufficient and whether the internal fuse is intact. The battery of the multimeter is insufficient, resulting in a higher current value. The current value is 0, and the internal fuse is broken.
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