ultrasonic liquid level transmitters manual pdf

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To ensure that the ultrasonic transmission to the measured ultrasonic liquid level or material surface occasion.

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+0086-371-26665538

Principle

The sensor of the meter pulses in the direction of the product surface. There, they are reflected back and received by the sensor.The meter measures the time t between pulse transmission and reception. The meter uses the time t (and the velocity of sound) to calculate the distance D between the sensor membrane and the product surface:
D = c •t/2. As the device knows the empty distance H from a user entry, it can calculate the level as follows: L= H – D.

The ultrasonic velocity in gas is influenced by the gas temperature,So the level meter need to detect the gas temperature at work. So the material level meter need to detect the gas temperature at work,compensation for sound velocity.

Blanking distance: Span F may not extend into the blanking distance B. Level echo from the blanking distance cannot be evaluated due to the transient characteristics of the sensor.
Philemon Instrument Co, LTD. | Philemon CMS

Philemon Instrument Co, LTD. | Philemon CMS

B:Blanking distance D:distance value L:level value
H: installation height F:level span

Application
To ensure that the ultrasonic transmission to the measured ultrasonic liquid level or material surface occasion.

Such as: storage tank, chute, pool, Wells, drains, metering box, granary etc.

Features

♦ Integrated design, installed conveniently
♦ Protected in the excessive voltage and current , protected in the thunder and lightning

♦ The big show window of LCD is easy to debug and observe

♦ Over-voltage over-current protection, lightning protection

♦ Advanced since the clamp type terminal, to ensure that wiring never loose

♦ Intellectual signal treatment technology, guarantee that the instrument meets various kinds of operating occasion

♦ All plastic probe, acid and alkali resistant, adapt to bad environment

Range
The instrument has the following range specifications: Liquid level: 4m,6m,8m,12m,20m,30m;

Material level: 3m,5m,7m,10m,15m;

Note

♦ The above range level measurement only,Material level measuring the effective range of about 50% of the data,material level measuring proposal chooses four wire or split type level gauge.

♦ Cold area outdoor installing applications, should prevent the probe surface frost or freeze.Can choose pipe long material level meter, the internal probe into the container,above model and models.
Philemon Instrument Co, LTD. | Philemon CMS

4m, 6m, 8m 12m, 20m, 30m 20m, 30m horn type

Products parameters

Model Parameters	PLUT4	PLUT6	PLUT8	PLUT12	PLUT20	PLUT30
Application	Industrial Level Measurement
Measuring Range	liquid:0.2-4 m	liquid:0.25-6 m	liquid:0.3-8 m	liquid:0.5-12 m	liquid:0.8-20 m	liquid:1.2-30 m
Process Connection	G2 Thread			M95X2.0Thread
Energy Transducer Material	ABS,PVC,PTFE
Temperature	-40~ 75 Deg C (LCD：-20ºC~ +70ºC)
Temperature compensation	The whole range with automatic compensation
Process Pressure	±0.1MPa
Precision	0.2% of actual range
Signal output	4-20mA(Option: RS485 / HART / Alarm)
Power Supply	DC20V~32 ≥30mA
Display Resolution Ratio	1mm
Mode of Indication	4 Digit LCD
Cable Diameter	Ø 6-12mm
Single Wire Diameter	Ø 0.5-1.78mm
Cable Entry/Seal	M20/PG13.5
Beam Angle	8º(3db)
Measurement Cycle	1.5 second

Product introduction and advantages

Ultrasonic level meter is controlled by microprocessor digital level instrumentation,In the measurement of ultrasonic pulse made by sensor (transducer), sound waves by the liquid surface reflection by the same sensor after receiving or ultrasonic receiver, by piezoelectric crystal or magnetostrictive devices converted to electrical signals,and by sound waves between transmitting and receiving time to calculate the sensor to the measured distance on the surface of the liquid. Due to adopting noncontact measurement, almost unlimited measured medium, can be widely used in all kinds of liquid and solid material height measurement.

Inquiry

If you have any suggestions or opinions about our products,please leave a message,and we will immediately answer your questions. Thanks for your support.E-mail:philemoninstrument@gmail.com Tel:+0086-371-26665538

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