Iout 4-20/0-20mA debug process

Environment and parameter check

1. To confirm if the power supply works fine.

2. To confirm if the data on the LED screen is transferred to the system.

3. To confirm if the Iout function is still on. (Parameter E06)

4. To confirm if the low point value is 0 or 4mA. (Parameter E13)

5. To confirm the setting of the corresponding value range. (Parameter E07 E08)

6. To confirm if wire wiring is correct and the insulation of unused wires is finished.

Hardware, wiring, and program of the receiver check

1. To get into parameter E11 to check if the 4/0mA export and interpretation function of the receiver (If there is a difference between data to data, users could adjust it by the unit uA at this page) works fine.

2. To get into parameter E12 to check if the 20mA export and interpretation function of the receiver works fine. (If there is a difference between data to data, users could adjust it by the unit uA at this page.)

3. To confirm if the interpretation function of the receiver works fine under simulation mode when testing different data. Simulation mode must be switched off when testing is finished. (Users can switch on the simulation mode by parameter F02 too, and adjust the simulated data by parameter F01. Back to the main page while finishing data adjustment.)

4. If the wiring during the above test is different from the actual operation, please re-test.

Exporting of the device check

1. Separating the Iout wiring from the system, then using the multimeter MA stalls to confirm if the current export works fine.

Results and actions

1. If the data is still abnormal when both the Iout export function and the equipment and program of receiver work fine, some other possible reason, like pipe size, or paddle wheel abnormal, should be checked further.

2. The current device may be damaged possibly. If users have another device for cross test, please make sure receiving equipment, data processing program, or wiring work fine.

3. Contact the original manufacturer with the serial number, wiring diagram (all related wiring of the flowmeter), and the model and brand of receiver.

4. Make sure if receiving equipment, data processing program, or wiring work fine.

Users need to refer to the actual situation, detailed troubleshooting, please contact LORRIC.