Chauvin Arnoux C.A 6549 Manual De Instrucciones página 106

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 Precision and resistance range in variable- / adjustable- voltage mode
Max. resistance measured = test voltage / 250 pA
Test voltage
Min. measured resistance
Max. measured resistance
Note: the precision in variable mode must be interpolated from the precision tables provided for fi xed
test voltages.
 Measurement of DC voltage during insulation test
Specifi ed measurement range
Resolution
Accuracy
During the measurement, the maximum acceptable voltage on the terminals is (AC or DC):
U peak = U nominal * (1.1 + dlSt) where dlSt = 3%, 10% or 20%
 Measurement of DC voltage during discharge phase of an insulation test
Specifi ed measurement range
Resolution
Accuracy
 Typical curves, test voltage versus load
V
600
500
400
300
200
100
0
0,01
40 ... 160 V
170 ... 510 V
10 k 
30 k 
160.0 G  ...
640.0 G  ...
640.0 G 
2.040 T 
40.0 ... 99.9 V
100 ... 1500 V
0.1 V
25 ... 5100 V
0.2% Un
5% + 3 ct
Range 500 V
0,1
106
520 ... 1500 V
1600 ... 5100 V
100 k 
300 k 
2.080 T  ...
6.40 T  ...
6.00 T 
10.00 T 
1501 ... 5100 V
1 V
2 V
1%
M 
1

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