Chapter 7 Display Functions
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7.2.2. Frequency Output
It is mainly used for manufacturer coefficient calibration and user measurement use.
In the third group configuration parameters setting: frequency corresponds to
real-time flow rate, upper frequency limit corresponds to max. flow rate.
Note: maximum frequency is set to 5000 Hz.
7.2.3. Current Output
Mainly used for transmitting output to other intelligent instruments, such as: digital
display table, recorder, PLC, DCS, etc.
The current output type: 4 - 20mA.
The current valve corresponds to real-time flow rate, 20mA corresponds to range
limit, 4 mA corresponds to range limit.
Conversion relationship
Notice:
Q
real time
Indicate real-time flow rate
Q
Max
Indicate current instrument range
I
real time
Indicate real-time current value
7.3. Communication
This instrument provides a standard RS485 communication interface, using the
international standard MODBUS-RTU communication protocol that supports 04
Read Holding Registers command.
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