The ultrasonic flow meter is designed to measure the fluid velocity of liquid withina closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non- fouling operation and easy installation.
Description
Principle
Ultrasonic water meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of non- fouling operation and easy installation.
Transit time ultrasonic flow meter send and receive ultrasonic waves between transducers in both the upstream and downstream directions in the pipe. At no flow conditions, it takes the same time to travel upstream and downstream between the transducers. Under flowing conditions, the upstream wave will travel slower and take more time than the (faster) downstream wave. When the fluid moves faster, the difference between the upstream and downstream times increases. The transmitter processes upstream and downstream times to determine the flow rate.
Features
• 0.5% of linearity
• 0.2% of repeatability
• 4 flow totalizers
• Patent balanced lower-voltage multi-pulse ultrasonic igniting
• built-in date totalizers
• built-in data-logger
• Work properly near transverters
• 0.5 second totalizing period
• 100 Pico-second resolution of time measurement
Product parameters
| Linearity | 0.5% |
| Repeatability | 0.2% |
| Accuracy | ±1% of reading at rates>0.2 mps |
| Response Time | 0-999 seconds, user-configurable |
| Velocity | ±32 m/s |
| Pipe Size | 20mm-6000mm |
|
Rate Units |
Meter, Feet, Cubic Meter, Liter, Cubic Feet, USA Gallon, Imperial Gallon, Oil Barrel, USA Liquid Barrel, Imperial Liquid Barrel, Million
USA Gallons. User configurable. |
| Totalizer | 7-digit totals for net, positive and negative flow respectively |
| Liquid Types | Virtually all liquids |
| Security | Setup values Modification Lockout. Access code needs unlocking |
| Display | 4×8 Chinese characters or 4×16 English letters |
|
Communication Interface |
RS-232C, baud-rate: from 75 to 57600. Protocol made by the manufacturer and compatible with that of the FUJI ultrasonic flow meter. User protocols can be made on enquiry. |
| Transducers | Model M1 for standard, other 3 models for optional |
| Transducer cable
length |
Standard 2×10 meters, optional 2x 500 meters |
|
Power Supply |
3 AAA Ni-H built-in batteries. When fully recharged it will last over 10 hours of operation.
100V-240VAC for the charger |
| Data Logger | Built-in data logger can store over 2000 lines of data |
| Manual Totalizer | 7-digit press-key-to-go totalizer for calibration |
| Housing Material | ABS |