

Add to Cart
Ultrasonic Liquid Level Meter 0-40M With Output 4-20mA / 1-5V / RS485
1. Working Principle
Ultrasonic sensors emit short, high-frequency sound pulses at regular intervals. These propagate in the air at the velocity of sound. If they strike an object, then they are reflected back as echo signals to the sensor, which itself computes the distance to the target based on the time-span between emitting the signal and receiving the echo.
2. Characteristics
1) Compact continuous non-contact liquid level measurement;
2) Body design, easy installation;
3) Over-voltage, over-current protection, lightning protection;
4) LCD or LED large display window, easy to debug and observe;
5) Anti-interference ability;
6) 4-20mA output;
7) Intelligent signal processing technology to ensure that the instrument meets all kinds of workplace
8) All metal case (IP67), sealed, alkali resistant, meet harsh environment.
3. Technical data:
Basic data
Type | MLT |
Power supply | DC24V (±10%) 60mA |
Display | 4 digit LCD |
Accuracy | 0.2% of full span (in air) |
Output current | 4-20mA |
Output load | 0-500Ω |
Temperature range | -40℃~80℃ |
Pressure range | ±0.1MP (press definitely) |
Measure cycle | 1 second (changeable ) |
Beam angle | 8º(3db) for range :4m 6m 8m 5º(3db) for range :12m 15m 20m 30m |
Parameter set up | 3 induction buttons |
Cable connection | PG13.5 |
Material | The electronic unit : metal The sensor: ABS |
Protect grade | IP67 |
Fix | Screw or Flange |
The measuring range:
MODEL | MLT4 | MLT6 | MLT8 | MLT12 | MLT15 | MLT20 | MLT30 |
LIQUID | 4.00m | 6.00m | 8.00m | 12.00m | 15.00m | 20.00m | 30.00m |
SOLID | 3.00m | 5.00m | 7.00m | 10.00m | 15.00 |
Note: When using to measuring solid level, the most energy of ultrasonic is absorbed or scattered by solid level, so the back wave is very little, the valid measuring range of solid level is about 50% of liquid level. And the valid measuring range of solid level is determined by the installing location and rang.
MODEL | MLT4 | MLT6 | MLT8 | MLT12 | MLT15 | MLT20 | MLT30 |
Blacking distance | 0.20m | 0.25m | 0.30m | 0.45m | 0.60m | 0.80m | 1.20m |
4. Advantages And Disadvantages
5. Company Profile
Melan Measurement & Control Instruments is located in Shanghai City. It is a high-tech manufacturer specialized in the design, development, manufacturing and sale of measurement and control instruments.
Our products are widely used in various fields, including
electricity, chemical industry, metallurgy, brewing, oil and gas,
textile, water conservancy, environmential protection, etc.
We own independent-courtyard modemized manufacturing workshops and
an open office building. Melan has accumlated production and
management experience in instruments from European and American and
domestic famous companies.
We own first-class talent team, and all the products have reached
advanced level at home and abroad. We provide our customers with
complete and professional test control solutions and high-tech and
high-quality products.
Melan is your reliable friend and partner. We are willing to try
our best as dedication and perfection as motivation.
6. FAQ
Q: How long will you give me the reply?
A: We will contact you in 5 hours as soon as we can.
Q: What is the warranty of your prducts?
A: Our warranty is 12 months after the shipping date.
Q: What is the lead time of your products?
A: Normally our factory lead time is 10-12 working days.
Q: Can I OEM your products?
A: OEM and ODM customization are welcomed.
Q: What is your MOQ?
A: We have no MOQ limit, small quantity order is acceptable.
Q:What is the transport?
A: Express such as DHL, FedEx, UPS for freight prepaid, and we can
also use your own courier account to do the freight collect. For
more goods we can arrange by air or by sea.