Chapter 6 Manual Zero Point Windows display codes
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Current Loop Mode Select
0. 4-20mA
set up the 4-20mA output to. be flow rate mode
1. 0-20mA
set up output range to be 0-20mA mode
2. 4-20mA vs.Vel.
set up the 4-20mA output to. be velocity mode
3. 4-20mA vs.Energy set up current loop output 4-20mAcorresponding energy
Other different current output characteristics are displayed in below figures. The
user can select one of them according to his actual requirements.
In two graphs shown above, flow F4mA indicates the value that the user entered
in Window M57; and flow F20mA indicates the value that the user entered in
Window M58. In the 4-20mA modes, F4mAand F20mA can be selected as a
positive or negative flow value as long as the two values are not the same.
CL 4mA Output Value
Set the CL output value according to
the flow value at 4mA. The flow
unit’s options are the same as those
in Window m31. Once "4-20mA vs.Vel."
is selected in Window M56, the unit
should be set as m/s.
0.
4- 20
mA
[55
CL mode Select
CL 4 mA Output Value
0.000 m3/h
