BE6000 Ultrasonic Flow Meter O&M Manual
Flomotion Systems, Inc. ~ FlomotionSystems.com
29
0.
4-20mA
5.
0-4-20mA
1.
0-20Ma
6.
20-0-20mA
2. 0-20mA Via RS-232
7. 4-20mA vs. Vel.
3. 4-20mA vs. Flow
8. 4-20mA vs. Energy
4. 20-4-20mA
The serial port controls the output according to the command and parameter entered in the RS232 to output
a definite current value through the current loop. The command formats are narrated in the command
explanations to Serial Port controls. For instance, if it is necessary to output a 6mA current through the
current loop, it can be realized by setting M56 to mode “0-20mA Via RS232” and giving a command
“AO6(CR)”. This function is able to make the flowmeter operate a control valve conveniently.
•
4mA or 0mA Output Value(M56)
Use this window to set the flow value to 4mA or 0mA. The flow unit is the same that was set at M31.
•
20mA Output Value(M57)
Use this window to set the flow value to 20mA. The flow unit is the same that was set at M31.
•
CL Check Verification(M58)
Check if the current loop has been calibrated before leaving the factory. Press ENT, move
5
or
6
separately
to display 0mA, 4mA till 24mA, and at the same time, check with an ammeter to verify that CL output
terminals No. 31 and 32 agree with the displayed values. It is necessary to re-calibrate the CL if over the
permitted tolerance. For more information, refer to Chapter 3- Operating Instructions. Section 3.29-Analog
Output Calibration.
•
CL Current Output(M59)
Display CL current output. The display of 10.0000mA indicates that CL current output value is 10.0000mA. If
the difference between displaying value and CL output value is too large, the current loop then needs to be
re-calibrated accordingly.
CL Current Output [59
0.0000mA
CL Checkup [58
Verification
CL 20mA Output Value[57
1200 m
3
/h
CL 4mA Output Value[56
0 m
3
/h
CL Mode Select [55
0.4-20mA
