Application field of ultrasonic flowmeter
1. Water supply and drainage
5. Water Conservancy and Water Resources
9. Flow inspection, flow tracking and collection
2. Petroleum, chemical industry
6. Energy-saving monitoring, water-saving management
10. Calorie measurement, calorie balance
3. Metallurgy, mining
7. Papermaking and hull manufacturing industries
8. Food and Medicine
Features of ultrasonic flowmeter
The measurement linearity is better than 0.5%, the repeatability accuracy is better than 0.2%, and the time difference measurement resolution is as high as 40 picoseconds, so that the measurement accuracy can reach ±1%.
128 data acquisitions in each measurement cycle are assisted by the newly developed flowmeter time difference analysis software, which has excellent performance, more stable and accurate display data, and better linearity.
Isolated RS485 dual interface, the flowmeter and the secondary meter can communicate through the RS485 bus, and the transmission distance is more than kilometers.
Equipped with three-channel analog input interface with accuracy of 0.1%, which can be connected to signals such as temperature and pressure.
One 4-20 mA analog output can be used as a flow/heat transmitter.
2-way 3-wire PT100 resistance signal input can be used as a heat meter.
3 channels 4-20 mA analog input, can be used as a data collector, the analog input interface can also be used as a digital input interface.
With dual-channel isolated programmable OCT output, used to output accumulated pulses, working status, etc.
The measurement effect of sewage pipe is good, and it can carry out stable and reliable measurement on most sewage pipes.
Ultrasonic sensors can choose external clamp type, plug-in type, pipe segment type, and can also support water meter sensors installed at any angle, including parallel double-insertion sensors.
It has a two-way serial peripheral universal interface, which can directly connect multiple external devices such as 4-20 mA analog output board, frequency signal output board, thermal printer, data recorder and so on in series.
The working parameters of the flowmeter can be solidified into the FLASH memory in the machine, and the problem of parameter loss will not occur. The solidified working parameters can be selected to be automatically recalled when the power is turned on.
Hardware modular design. It consists of main board module, 4-20 mA output module, pulse output module, printer module, parallel port keyboard display module, serial keyboard display module, etc. Users can choose according to their needs.
Different software communication protocols such as MODBUS protocol, MBUS protocol, FUJI extended protocol, and simple water meter protocol are available for users to choose. The recommended protocol is MODBUS-RTU or MODBUS-ASCII protocol.
The first 64 days of daily accumulation and the first 32 months (2 years) of monthly accumulation can be recorded, and the contents of the year, month, and day are added. The accumulated data of year, month and day can be read out through the MODBUS protocol.
The flowmeter records 16 times of power-off time. The data can be read out through the MODBUS protocol.
Timing printing, data output function, automatically display the next print output time, 22 programmable timing printing content. The timing printing function can realize automatic timing output or automatic recording of data.
The pulse width of OCT1 cumulative pulse output can be set between 6 milliseconds and 1 second. The factory default value is 200 milliseconds.
Parallel interface with keyboard display, connected to display components to form a simple flow meter.
The serial keyboard display component can be directly connected to the serial port, and it can be plugged and unplugged after the parameter setting is completed.
It has the function of judging the type of fluid by the sound velocity of the fluid, and can identify the type of fluid.
It has a programmable built-in quantitative controller. It can be started by external input signal or MODBUS command.
A single 24V (using DC 8～36V) DC power supply works. The working current is less than 50 mA. (When the monitor is not connected, the buzzer does not sound).