Ultrasonic level gauge quotation
2. Environmental conditions for the use of ultrasonic level gauges
1. Medium pressure: Acoustic waves cannot propagate in vacuum, but
can propagate in micro-vacuum. However, we recommend not to use it
in any vacuum environment, that is, under a slight vacuum, because
it may cause abnormal operation or large errors of the ultrasonic
2. Medium humidity: In dry or saturated humidity air, the speed of
sound will change by 2%. The air in the water vapor contains a
variety of gases, which affect the speed of ultrasonic emission
3. Space: there are obstacles or pipes under the sound wave, which
affect the ultrasonic emission and cause signal loss
4. Foam: A large number of bubbles produced by the measured medium
can easily absorb sound waves or interfere with sound emission.
5. Air flow: negligible when the wind speed is less than 50km/h.
When the wind speed is greater than 50km/h, it will affect the
measurement results
1. What is the ultrasonic level gauge?
Ultrasonic level gauge is a monitoring instrument for measuring
liquid height, tank height and material position. The instrument
itself can adopt two-wire, three-wire or four-wire technology. The
two-wire system is: the power supply and signal output are shared;
the three-wire system: the power supply circuit and the signal
output circuit are independent. When using DC 24v power supply, a
3-core cable can be used, and the negative power supply terminal
and the negative signal output terminal share one core; four-wire
system: when using AC 220v power supply, or when using DC 24v power
supply, the power supply circuit and the signal output circuit are
required to be completely isolated , A 4-core cable should be used.
DC or AC power supply, 4 ~ 20mADC, high and low switching output.
Household ultrasonic level gauge
2. What are the performance characteristics of the ultrasonic level
gauge?
Strong anti-interference performance. The upper and lower nodes can
be set at will, online output can be adjusted, and displayed on
site. Analog quantity, switch quantity, RS485 output are optional,
convenient to interface with related facilities.
Use polypropylene waterproof shell. The shell is small and sturdy,
with excellent chemical resistance. For inorganic compounds, no
matter acid, alkali or salt solution, there is almost no
destructive effect except strong oxidizing substances. Almost all
solvents are insoluble at room temperature and can be used for
alkanes, hydrocarbons, alcohols, phenols, and aldehydes. , Ketones
and other media.
Non-toxic. It can be used for the installation of equipment in the
pharmaceutical and food industries, and the maintenance is very
convenient.
