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Ultrasonic water tank digital level meter sensor radar liquid level sensor

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Address: 5-6F, Building 8, No.115, Lane 1276, Nanle Road, Songjiang District Shanghai, 201600 China

Contact name:Sherry Xiong

Shanghai Zhaohui Pressure Apparatus Co., Ltd.

Ultrasonic water tank digital level meter sensor radar liquid level sensor

Country/Region	china
City & Province	shanghai shanghai

Product Details

Product Overview

Ultrasonic Level Meter

PT124B-607 is the latest professionally manufactured universal
integrated ultrasonic level meter. It takes advantage of its own
and domestic and international level meter to achieve full
digitization, data transmission and human-machine communication
functions. The main chip adopts imported industrial-grade
single-chip microcomputer, digital temperature compensation and
ultra-wide voltage input regulator. Has strong anti-interference
ability. You can arbitrarily set the upper and lower limit nodes
and online output adjustment. It can choose analog, and RS485
output. Interface to related facilities is convenient. It can meet
most liquid level measurement requirements without contacting
industrial media, thereby completely solving the disadvantages of
tangling, blocking, leakage, and media corrosion caused by
traditional measurement methods.

FEATURES AT A GLANCE

False echo storage function
Built-in temperature compensation beam is small
Simple commissioning and calibration
Aluminum enclosure, optional explosion-proof type,
both liquid and solids can be measured,
optional open channel flow function,
Chinese and English menu, with echo curve display function.
With frequency adjustment function, with noise filtering function;

PRODUCT SPECIFICATIONS

Item	Data
Measure range	Standard prob:	Liquid :	(0.3-10) m
		Solid :	(0.3-4) m
	Anti-corrosion sealed probe:	Liquid :	(0.3-8) m
		Solid :	(0.3-4) m
Output signal	4-20 mA / HART protocol (24V DC 2-wire / 4-wire ) 4-20 mA / HART protocol (220V AC 4-wire)
Process connection:	M95*2 or flange, support
Accuracy:	± 0.25% full scale
Process pressure:	(-0.02-0.1) MPa
Process temperature:	(-40-70) ° C
Transducer enclosure material:	PA66+GF30 or PVDF
Protection level:	IP67
Explosion-proof grade:	Exia IIB T6 Ga

Application

Generally suitable for liquid level measurement with regular and
flat surface,
Petroleum, mining, power plants, water treatment,
Chemical industry, electric power, metallurgy, petroleum,
semiconductor, etc.
Pollution occasions, Measurement of solid particles
Particularly suitable for corrosive (acid, alkali) media,
Level measurement in the case of substances that are prone to
adhesion.

Working principle

Ultrasonic level transmitter are mostly used for continuity
measurement, mainly using the principle that sound waves hit the
liquid surface to generate reflected waves, and measure the time
required from the emitted wave to the time when the reflected wave
returns. In practical applications, the ultrasonic level meter is
vertically installed on the liquid surface. When the ultrasonic
level meter works, it will emit an ultrasonic pulse to the liquid
surface. After a period of time, the sensor of the ultrasonic level
meter will be connected to the liquid surface. The returned signal
is based on the time difference between the ultrasonic level meter
transmitting and receiving the ultrasonic wave, so as to calculate
the distance from the liquid surface to the sensor, and the
specific height of the liquid level can be calculated. In the above
working principle, the speed of sound in the medium is c, the time
difference between the echo and the transmitted pulse is t, and
then the distance D between the sensor and the object surface is
calculated according to the formula D = c × t / 2. Please
understand the measurement principle of the ultrasonic level meter
in combination with the following figure. The calculation formula
is: L = E-D, where E is the empty tank distance, F is the range
(full tank distance), L is the material level, BD is the
measurement blind zone, and D The distance from the sensor housing
plane to the liquid surface.

Attention

In the application process of the ultrasonic level meter, the
following matters need attention:
1. If measure corrosive media, please choose an ultrasonic level
meter with anti-corrosion probe;
2. if measure flammable and explosive media, please choose an
ultrasonic level meter with explosion-proof performance;
3. Generally, the ultrasonic level meter is not suitable for
mediums with large temperature change spans and large uneven liquid
levels;
4, because the propagation of ultrasonic waves requires a medium,
the ultrasonic level meter cannot be used in a vacuum
environment;
5. Both steam and dust will hinder the sound wave transmission of
the ultrasonic level meter to some extent and affect the
measurement effect. Therefore, the ultrasonic level meter cannot be
used if there are many steam and dust conditions.

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