Ultrasonic level gauge installation precautions

When the ultrasonic level meter transducer emits an ultrasonic pulse, it has an emission opening angle. When the ultrasonic level meter transducer emits an ultrasonic pulse, it has an emission opening angle. There shall be no obstacles in the area radiated by the transmitted ultrasonic beam from the lower edge of the transducer to the surface of the medium to be measured. Therefore, the instrument should be avoided when installing the instrument, such as: ladder, limit Switches, heating equipment, brackets, etc. It should be noted that the ultrasonic beam must not intersect the feed stream.

Ultrasonic level gauge installation instrument should pay attention to:
The highest material level shall not enter the measuring area; the outer surface of the tank wall shall be kept at a certain distance; the external device may make the transducer's emission direction straight to the liquid level. The appearance of the ultrasonic level gauge device in the explosion-proof area is subject to the regulations of the national explosion-proof danger zone. The intrinsically safe housing is made of plastic. Intrinsically safe instruments can be installed in places where there is an explosion-proof requirement, and the instrument has to be grounded.
Ultrasonic level gauge technical parameters Power: 24VDC or 220VAC
Sensing connection: 2-wire system (two-line screen is recommended)
Signal output: 4~20mA signal output (value of liquid level difference) optional 485 output.
Control output: 2 groups of 4 programmable relay outputs (2 high and 2 low, set the control parameter to the value of the liquid level difference)
Resolution: Range ≤ 10m: 1mm. Range ≥ 10m: 10mm.
Accuracy: 0.25 ~ 0.5%.
Ambient temperature: -25～+55°C.
Display mode: Dot matrix full Chinese 3 value with the same screen display (high liquid level, low liquid level and liquid level difference)
Meter size: 195 (high) with waterproof inlet connector × 185 (width) × 128 (deep).
Opening size: 152X76mm
Housing material: ABS engineering plastic and visual transparent cover. Performance characteristics
Robust and stable sensor for harsh industrial applications;
Strong anti-interference ability, can set upper and lower limit nodes and online output adjustment arbitrarily;
The transducer has a built-in temperature sensor, and the ultrasonic level gauge realizes real-time automatic temperature compensation of the measured value;
The blind zone can also be manually set to shield the interference signal near the probe;
4~20MA current output, optional fieldbus interface.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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