User manual SEFELEC 5x Series  20   v1.06 
 
Dielectric strength, 50 VA 
At current threshold IMAX 
Amplitude adjustable from  
 0.001 mA to 10.000 mA in steps of 0.001 mA. 
The device continuously measures the total current and the real current (AC) circulating through 
the sample under test and compares the latter according to two possibilities: 
The high threshold > 0.000 mA, the low thresh-
old is fixed at 0.000 mA  
If the measured current is greater than or 
equal to the threshold, the test is declared 
FAIL: Circuit break; if the current is < high 
threshold the test is declared PASS 
The low threshold > 0.000 mA and the high 
threshold is > low threshold 
If the current measured is inside the range 
defined by the thresholds, the test is PASS, if 
it is outside the test is declared FAIL: Circuit 
In the sensing modes above, it is possible to specify a minimum value of current flowing in the 
sample under test. The value of IMIN is adjustable from 0.000 mA to 10.000 mA. The use of 
IMIN ensures that the test sample is correctly connected to the device  
In this case no current monitoring is performed. 
There is no adjustment of the output voltage in relation to the load 
Warning: Permanent use of the device on a low-impedance charge can result 
in overheating of the amplification stage, with consequent stoppage of the 
generator for safety reasons. 
 
Measurement of the TOTAL permanent current  
The reading of the total current (resistive and capacitive) is obtained through a shunt located 
directly in the test circuit 
 In DC the accuracy is guaranteed for charging resistances > 1 MΩ.