Description
Overview
GAOTek insertion type ultrasonic flowmeter is based on the original imported FPGA integrated circuit from America’s Intel corporation. Its algorithm belongs to a combination of threshold comparison gate circuit delay method and high-speed ADC correlation method. The main advantage is reflected in the clamp-on ultrasonic flow meter. It is different from other 99% domestic clamp-on ultrasonic flow meters which are using the outdated capacitor charging algorithm or using algorithm of either comparison or correlation alone. So, our products belong to a high-end transit-time ultrasonic flow meter. Its measuring frequency can be more than 300 times per second (domestic other 99% clamp-on ultrasonic flow meters are less than 50 times per second, or even just once per second). Its accuracy is strictly controlled to be better than 1.0%. Moreover, its tolerance rate to bubbles in the measured pipe has been greatly improved, and the maximum tolerance time for continuous bubbles or impurities is 5 seconds.
Features
- It can be operated in ambient temperature -50°F to 122 °F (-10 ° C to 50 ° C).
- It has a dot matrix character backlit LCD display.
- Double-shielded transducer cable.
- It belongs to a high-end transit-time ultrasonic flow meter.
Technical Specifications
Performance | |
Flow range | ±0.09ft/s to ±39ft/s (±0.03m/s to ±12m/s) |
Accuracy | ±1% of measured value |
Repeatability | 0.2% of measured value |
Linearity | ±1% |
Pipe size | DN 0.98 in x 47.24 in (25 mm x 1200 mm)(A pair of sensors) |
Function | |
Outputs | Analog output: 4 mA to 20 mA, max load 750 Ω. Pulse output: 0 to 10 KHz |
Communication | RS232/RS485 Modbus |
Power supply | 10~36 VDC / AC 90~245 V |
Display | 240 x 128 backlit LCD |
Temperature | Transmitter: -14 ℉ to 140 ℉ (-20 ℃ to 60 ℃) Transducer: -40 ℉ to 176 ℉ (-40 ℃ to 80 ℃, TT01) Transducer: -40 ℉ to 266 ℉ (-40 ℃ to 130 ℃, TT03) Transducer: -40 ℉ to 356 ℉ (-40 ℃ to 180 ℃, TT02H) |
Humidity | Up to 99% RH, non-condensing |
Physical | |
Transmitter | PC+ABS, IP65 |
Transducer | Encapsulated design, IP68 Double-shielded transducer cable Standard/maximum cable length:30ft/1000ft(9m/300m) |