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Ultrasonic flowmeters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse). According to the principle of signal detection ultrasonic flowmeter can be divided into transmission velocity difference method (direct time difference method, time difference method, phase difference method and frequency difference method), beam migration method, Doppler method, cross-correlation method, space filter method and noise method. Ultrasonic flowmeter and electromagnetic flowmeter, because the instrument flow channel is not set up any obstruction, are unimpeded flowmeter, is suitable to solve the flow measurement of difficult problems of a kind of flowmeter, especially in the large flow measurement has more outstanding advantages, it is one of the rapid development of a kind of flowmeter.
1. Measurement accuracy: 1%;
2. Working power supply: isolated DC8-36V or AC85-264V;
3. Power consumption: working current 50mA(not connected to the keyboard and buzzer does not sound);
4. Optional output: 1 road sign brick isolation RS485 output;
5.1 channel isolation 4-20mA or 0-20mA output (active or passive optional);
6. Display: 2×10 Chinese backlit display (Chinese and English bilingual option);
7. Operation: 16 button or 4 button window operation;
8. Other functions: automatic memory of the first 512 days, the first 128 months, the first 10 years of positive and negative net accumulated traffic automatic memory of the first 30 times on, power off time and traffic and can be automatically or manually added, and can be read through MODBUS protocol;
9. Flow sensor: external application type, insert type and tube section type.
Ultrasonic flowmeters are instruments that measure flow by detecting the effect of fluid flow on an ultrasonic beam (or ultrasonic pulse). According to the principle of signal detection ultrasonic flowmeter can be divided into transmission velocity difference method (direct time difference method, time difference method, phase difference method and frequency difference method), beam migration method, Doppler method, cross-correlation method, space filter method and noise method. Ultrasonic flowmeter and electromagnetic flowmeter, because the instrument flow channel is not set up any obstruction, are unimpeded flowmeter, is suitable to solve the flow measurement of difficult problems of a kind of flowmeter, especially in the large flow measurement has more outstanding advantages, it is one of the rapid development of a kind of flowmeter.
1. Measurement accuracy: 1%;
2. Working power supply: isolated DC8-36V or AC85-264V;
3. Power consumption: working current 50mA(not connected to the keyboard and buzzer does not sound);
4. Optional output: 1 road sign brick isolation RS485 output;
5.1 channel isolation 4-20mA or 0-20mA output (active or passive optional);
6. Display: 2×10 Chinese backlit display (Chinese and English bilingual option);
7. Operation: 16 button or 4 button window operation;
8. Other functions: automatic memory of the first 512 days, the first 128 months, the first 10 years of positive and negative net accumulated traffic automatic memory of the first 30 times on, power off time and traffic and can be automatically or manually added, and can be read through MODBUS protocol;
9. Flow sensor: external application type, insert type and tube section type.
