Insulation Resistance; Measurement Ranges - Chauvin Arnoux C.A 6549 Manual De Instrucciones

 During an insulation measurement:
Measurement 0.000 ...
range DC 0.250 nA
Resolution 1 pA
Accuracy 15% + 10 ct

7.2.3. INSULATION RESISTANCE

 Method: voltage-current measurement as per IEC 61557-2 or per DIN VDE 0413 Part 1/09.80.
 Nominal output voltage:
 Nominal current:   1 mA
 Short-circuit current: < 1.6 mA
 Maximum acceptable AC voltage: (1.1 + dISt) x Un + 60 V
 Measurement ranges:
500 V : 10 k  ... 1.999 T 
1000 V : 10 k  ... 3.999 T 
2500 V : 10 k  ... 9.99 T 
5000 V : 10 k  ... 9.99 T 
Var 40 V ... 5100 V: to be interpolate between the fi xed values above.
 Accuracy and resistance range in fi xed-voltage mode
Test voltage
Specifi ed
1.000 ... 3.999 M 
measurement
range
Resolution
Accuracy
Test voltage
Specifi ed
400 ... 999 M 
measurement
1.000 ... 3.999 G 
range
1 M 
Resolution
Accuracy ±5% + 3 ct
0.251 ... 10.00 ... 100.0 ...
9.999 nA 99.99 nA 999.9 nA
10 pA 100 pA
10% 5%
500, 1000, 2500, 5000 V
Accuracy ± 2%
adjustable from 40 to 1000 V
adjustable from 1000 to 5100 V
DC
±5% (3.1 mA maximum at start-up)
DC
500 V - 1000 V - 2500 V - 5000 V
4.00 ... 39.99 M 
10 ... 999 k 
1 k 
500 V - 1000 V - 2500 V - 5000 V
4.00 ... 40.0 ...
39.99 G  399.9 G 
10 M  100 M 
105
1.000 ... 10.00 ... 100.0 ...
9.999 µA 99.99 µA
1 nA 10 nA
3%
(or adjustable from 40 V to 5100 V)
DC
in 10-V steps
DC
in 100-V steps
DC
40.0 ... 399.9 M 
10 k 
±5% + 3 ct
1000 V - 2500 V
5000 V
400 ... 999 G 
2.000 ...
1.000 ... 1.999 T  3.999 T 
1 G 
±15% + 10 ct
1 0 0 0 ...
999.9 µA 3000 µA
100 nA 1 µA
100 k 
2500 V
5000 V
4.00 ...
9.99 T 
10 G 