>> Ultrasonic Flow meter User Manual
Turn on or turn off the NEG(negative) totalizer
(1) Totalizer reset
(2) Restore the factory default settings parameters. Press the dot key followed by the
backspace key. Attention, It is recommended to make note on the parameters before
doing the restoration
Manual totalizer used for easier calibration. Press a key to start and press a key to stop
the manual totalizer.
Language selection.
The selection could also be changed automatically by the system, if English LCD
display is used as the display device.
Setup for local segmental LCD display. Enter 0 or 1 for the non-auto-scan mode; Enter
2~39 for the auto-scan mode. In the auto-scan mode the display will automatically scan
displaying from 00 to the entered number of the local segmental LCD display.
Flow rate damper for a stable value. The damping parameter ranges from 0 to 999
seconds.
0 means there is no damping. Factory default is 10 seconds
Low flow rate (or zero flow rate) cut-off to avoid invalid accumulation.
Zero calibration/Zero point setup. Make sure the liquid in the pipe is not running while
doing the setup.
Clear the zero point value, and restore the solidified zero point value.
Set up a flow bias. Generally this value should be 0.
Flow rate scale factor. The default value is ‘1’.
Keep this value as ‘1’, when no calibration has been made.
Networks address identification number. Any integer can be entered except 13(0DH,
carriage return), 10 (0AH, line feeding), 42 (2AH), 38, 65535.
Every set of the instrument in a network environment should have a unique IDN. Please
refer to the chapter for communication.
System locker to avoid modification of the system parameters.
If password is forgotten, you could send a command ‘LOCK0’ to the serial input to
unlock. Or you can write 0 to REGISTER49-50 under MODBUS protocol.
Entry to linearity correcting data inputs. By using of this function, the non-linearity of
flow meter will be corrected. Correcting data shall be obtained by careful calibration.
Displays the input contents for the serial port.
By checking the displays, you can know if the communication is ok.
Switches for the built-in data logger. There are as many as 22 different items can be
chosen. To turn this function, select ‘YES’ the system will ask for selecting the items.
There are 22 items available. Turn on all those items you want to output
Window to setup the time of scheduled output function (data logger, or Thermo-printer).
This includes start time, time interval and how many times of output. When a number
great than 8000 entered for the times of output, It means the output will be keeping
always. The minimum time interval is 1 second and the maximum is 24 hours.
Data logging direction control.
(1) If ‘Send to RS485’ is selected, all the data produced by the data logger will be
transmitted out through the RS-232/RS485 interface
(2) If ‘To the internal serial BUS is selected, the data will be transmitted to the
internal serial bus which allows a thermal printer, or a 4-20mA analog output
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