Ultrasonic flow meters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse).
Clamp-on or tube-segment ultrasonic flow meters are based on the principle of “velocity difference method” to measure the liquid flow in a circular tube. It adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, which makes the flow meter more suitable for the environment of the industrial site, and the measurement is more convenient, economical and accurate. The products have reached the advanced level at home and abroad, and can be widely used in petroleum, chemical, metallurgy, electric power, water supply and drainage and other fields.
Parameter :
| Principle | Transit-time |
| Precision | Flowmeter:±0.5%; Heat meter:±2% |
| Display | Can connect 2 × 10 backlit Chinese characters or 2 × 20 character LCD, support Chinese, English, Italian three languages |
| Signal output | 1 4 ~ 20mA current output, impedance 0-1K, accuracy 0.1%
1 OCT pulse output (pulse width 6-1000ms, default 200ms) 1 relay output |
| Signal input | 3 channels 4 ~ 20mA current input, accuracy 0.1%, can collect temperature, pressure, liquid level etc.
Can be connected to a three-wire PT100 platinum resistor for heat measurement. |
| Data interface | Isolated RS485 serial interface, the flowmeter can be upgraded through a PC, supporting protocols such as MODBUS |
| Pipe material | Steel, stainless steel, cast iron, cement pipes, copper, PVC, aluminum, fiberglass and other dense pipes are allowed to be lined |
| Inner diameter of tube | 15-1000mm |
| Straight pipe section | Sensor installation point 0 is good: 10D upstream, 5D downstream, 30D from the pump outlet (D refers to the pipe diameter) |
| Medium | Single, uniform liquid that can transmit ultrasonic waves, such as water(-30 ℃ ～ 160 ℃) |
| Temperature | Standard probe: -30 ～ 90 ℃, high temperature probe: -30 ～ 160 ℃ |
| Turbidity | 10000 ppm with low bubble content |
| Velocity | -12m/s ～12m / s |
| Temperature | Host: -20 ～ 60 ℃, flow sensor: -30 ℃ ～ 160 ℃ |
| Special cable | Shielded twisted-pair cable |
| Protection class | Main unit: IP65; sensor: IP68; |
| Explosion proof | DIIBT5 |
| Power supply | DC24V, AC85~264V;50Hz |
| Power consumption | 1.5W |