Melan Measurement & Control Instruments (Shanghai) Co.,Ltd.
MELAN MEASUREMENT & CONTROL INSTRUMENTS (SHANGHAI) CO., LTD.
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Cost-effective Small Pipes 15mm-40mm Ultrasonic Flowmeter / Flow Meters With 4-20mA And RS485 Output
I. Working Principle
An ultrasonic flow meter construction can be done by using upstream and downstream transducers, sensor pipe and reflector. The working principle of ultrasonic flow meter is, it uses sound waves to resolve the velocity of a liquid within a pipe. There are two conditions in the pipe like no flow and flowing. In the first condition, the frequencies of ultrasonic waves are transmitted into a pipe & its indications from the fluid are similar.
II. Features
III. Specification
| Pipe Material | Metal /PVC, PP or PVDF rigid plastic pipe |
| Liquid Type | Water/other liquid (Single liquid medium without solid particles or impurities) |
| Temperature Range | 0-75℃ (No freezing on the surface) |
| Low velocity cut off value (Default by factory) | 0.1m/s |
| Display | 256*128 LCD |
| Reponse Time | 0.5-60m/s |
| Accuracy | ±2%, (±1% after calibration) |
| Data Storage Period | 300ms |
|
Memory for data backup | EEPROM (Data storage: over 10 years, data read/write frequency: over 1 million times) |
|
Power and I/O connection | M12 type aviation plug |
| Otuput | 4-20mA |
| Communication | Modbus RS485 |
| Option for Output | OCT (pulse output)/ One relay alarm (please contact the factory) |
| Power Supply | 10-24VDC |
| Electric Power | ＜3W |
|
Protective circuit | Power reverse connection protection, Power surge protection Output short circuit protection, Output surge protection |
| Enclosure Protection Class | IP65 |
| Environment Temperature | -10 to 60°C (No freezing) |
| Relative Humidity | 35 to 85% RH (No condensation) |
| Vibration resistance | 10 to 55 Hz double amplitude 1.5 mm, 2 hours in each XYZ axis |
| Impact resistant | 100 m/s2 16 ms pulse, 1000 times each for X, Y and Z axis |
| Main Material | Aluminum, Industrial Plastics |
| Cable Length | 2m(standard ), PT1000 sensor standard cable length is 9m |
IV. Flow Range
V. 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.
VI. 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.