8 Inspection and Maintenance
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2  Judging Criteria
 
■
Whether there is liquid leakage. 
 
■
Whether the safe valve has projected.  
 
■
Measure the static capacitance. 
 
■
Measure the insulating resistance.
3  Replacement
controller
Do not replace the electrolytic capacitor yourself. If replacement is required, contact 
us.
8.4 Storage
For storage of the controller, pay attention to the following two aspects:
 
■
Pack the controller with the original packing box provided by Inovance.
 
■
Do not put the controller in the environment of high humidity or temperature, or 
direct sunlight for a long time.
 
■
Long-term storage degrades the electrolytic capacitor. Thus, the controller must 
be energized once every six months, each time lasting at least 5 hours. The input 
voltage must be increased slowly to the rated value with the regulator.