FHS300 is based on the original imported FPGA integrated circuit from America’s Intel corporation. Its algorithm belongs to combination of threshold comparison gate circuit delay method and high-speed ADC correlation method. The main advantage is reflected in 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 It is different from other 99% domestic clamp-on ultrasonic flow meters which are using the outdated capacitor charging algorithm or using algorithm of either comparison or correlation alone.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 FHS300 belongs to 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.
Parameter :
Flow range | ±0.09ft/s ~ ±39ft/s (±0.03m/s ~ ±12m/s) |
Accuracy | ±1% of measured value |
Repeatability | 0.2% of measured value |
Linearity | ±1% |
Pipe size | DN25mm~DN1200mm(A pair of sensors) |
Outputs |
Analog output: 4~20mA, max load 750Ω .
Pulse output: 0~10KHz |
Communication | RS232/RS485 Modbus |
Power supply | 10~36VDC/AC90~245V |
Display | 240*128 backlit LCD |
Temperature |
Transmitter: -14℉~140℉(-20℃~60℃)
Transducer: -40℉~176℉(-40℃~80℃,TT01) Transducer: -40℉~266℉(-40℃~130℃,TT03) Transducer: -40℉~356℉(-40℃~180℃,TT02H) |
Humidity | Up to 99% RH,non-condensing |
Transmitter | PC+ABS,IP65 |
Transducer |
Encapsulated design,IP68
Double-shielded transducer cable Standard/maximum cable length:30ft/1000ft(9m/300m) |