General consideration
Let the probe be perpendicular to a wall, and make sure the measuring
distance is larger than the blacking distance, and no barriers within the
beam angle zone.
Wiring and connecting the instrument correctly according to the guide .
Turn on the power and after a few seconds the instrument will enter the
running mode. And press SEL key to check the instantaneous flow rate,
liquid level value, distance value and temperature value.
Move the probe slowly, the level value and distance value should change
slowly accordingly.
Press SEL and MOV keys simultaneously and then enter the operating
mode. Adjust the weir type number, and the installation height, then
press MOV and SEL keys simultaneously to exit, then the
instantaneous flow rate and level value should change accordingly, and
the accumulate flow rate will increase too.
Adjust the full scale of instantaneous flow rate, and test the output
current with a multi-meter, the output current should change, too.
Because the output current is always in accordance with the
instantaneous flow rate.
Adjust the status of relays, and test with a multi-meter whether the relays
act in correct time delay.
If the instrument has RS485 serial communication function, it should be
tested with the host computer online.
6. Serial communication-Modbus-RTU
The serial communication is optional for ULFM O.C.M, with standard Modbus protocol, RTU
serial transmission mode. (This function should be confirmed when it is ordered.)
Address number
The valid address numbers are in the range 0-247, and the address number is corresponding to the
address code in Modbus communication. It can be set in the programming mode.
Baud rate
This series allows the following baud rate(RTU mode): 19200bit/s, 9600bit/s, 4800bit/s. The baud
rate can be set in the programming mode.
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