6.0.5 Wire resistance measurement page  
Description  
FNB48 uses the differential pressure method to measure the internal resistance of the  
cable, which needs to be used with a constant current load.  
(1) Click the middle button: use the current voltage and current  
value as the reference value  
Measurement procedure  
(1) Connection mode: charger + FNB48 + constant current load (the  
current is adjusted to about 0.5-1A), and record the reference  
value.  
(2) Connection method: charger + cable + FNB48 + constant current  
load (the current is adjusted to about 0.5-1A, which needs to be  
similar to the current when the reference value is recorded),  
the system automatically calculates the internal resistance of  
the cable  
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