Error Diagnostics and Trouble Removal of JY500A6 Batching Weighing Controller Transmitter

1 Meaning of error code and simple solution

2 Handling method for calibration error 
When the calibration error occur,“Err-03” would be displayed on the lower window, you should calibrate again. If “Err-03”shown again, you should check the inner code.
1）If the inner code decrease after add something on the scale, that is SIG+ and SIG-(or EXC+ and EXC-) are reversed. Make sure the wiring is correct between load cell and instrument. And calibrate again.   
2）If the inner code is 0 or constant after add something on the scale, please check the load cell is good and the wiring is correct.
3）If the inner code is fluctuant, please check wiring is good and junction box without water in it etc.
4）If the inner code is normal but calibration error, please replace the instrument or contact with the manufacturer. 

When finishing the parameter setting, it will be return to weighing interface after pressing  3s.

3 Fault detection method for load cell 
a. Checking sensor input and output impedance before wiring , if it has been wired, you should disconnect and then measure it. Input impedance (between Ex+ and Ex-) should be 400±30Ω, (or 700±30Ω for high-impedance type), and output impedance (between SIG + and SIG -) should be 350±5Ω, (or 650±20Ω for high-impedance type), if not, you should replace the load cell;
b. If the weighing value is negative, swap the wiring between SIG+ and SIG-,and then a positive value would be shown;  
c. For power-on testing, the signal voltage shout be 0~16mV(1~7mV better) at zero point(namely empty scale);
d. Analog signal is sensitive to interference therefore the load cell cable should be used shield wires and as short as possible; kept away from other power lines and control lines.
Check and maintain instrument as following steps in case of wrong weighing display or unstable display during operation: 
1) Check connectors for moisture and electric leakage. Check connection between the load cell and instrument (see section 2.1).
2) Measure input and output impedance of load cell before it has been wired, or the internal resistance of the instrument would affect measurement results. Input impedance (between Ex+ and Ex-) should be 400±30Ω, (or 700±30Ω for high-impedance type), and output impedance (between SIG + and SIG -) should be 350±5Ω, (or 650±20Ω for high-impedance type),if not, please replace the load cell.
3) Load cell should be replaced if the zero-point voltage is not within the signal measured range(0~16mV).
4) Load cell should be tested one by one to find the broken load cell. 

5) Wiring for the first time, checking the color of SIG+ and SIG- is matched, or it would lead to unstable display after stressing load cell. 

4 Trouble removal for load cell 
1) Check input and output internal resistance of load cell. 
2) Test the voltage between SIG+ and SIG- at the state of empty scale after power on, it should be approximate to the calculated value(0~16mV); 
3) Test every load cell one by one. 
4) Test instrument with simulator or good-quality weighing hopper. 
5) Check connection between the load cell and instrument .Check connectors for moisture and electric leakage; 
6) Checking the color of SIG+ and SIG- is matched. Test each load cell separately. 

7) Check wiring between load cell and instrument, and check whether connector and contact is well connected . 

5 Automatic operation failure
Take following steps if the instrument is subject to automatic operation failure: 
1)Turn “Manual/AUTO” switch to “AUTO” position, access automatic operation interface. 
2)Observe displayed weight value on the screen. Pressing “0” can zero 
current displayed weight value, if it is failed, reset parameter “Zero setting range” (increase its setting vale), or remove sediments and deposits in the weighing hopper, or both. 
3)Take following procedures if fail to start operation after inputting “Start” signal: 
a. Check the wiring; 
b. Observe formula and confirm formula number;

c. Check if there is any error prompt.

Shen Zhen Zhuohe Instrumentation Co.,Ltd was founded in year of 2002.We specialize in providing BATCHING CONTROLLER,BELT SCALE CONTROLLER,PACKAGING CONTROLLER and WEIGHING TRANSMITTER.

If you are interested in our products, welcome to contact us via email.