Insulation Resistance - Chauvin Arnoux C.A 6541 Manual De Instrucciones

I I I I I Accuracy : ±1% R ±3 cts, AC sinusoidal or DC voltage
I I I I I Input resistance : approx. 750 kΩ
!
WARNING: This instrument is Cat III 600 V, according to EN 61010-1 + A2 (ed. 95). It shall not be
connected to voltages > 600 V in relation to the earth.
7.2.2

Insulation resistance

I I I I I Method: Voltage-current method according to EN 61557-2 (ed. 02/97)
I I I I I Nominal output voltage: 50, 100, 250, 500, 1000 V
I I I I I Open-circuit voltage : ≤ 1.1 x Vn ± 5 V (50, 100, 250, 500, 1000 V)
I I I I I Nominal current: > 1 mA
I I I I I Short-circuit current: < 6 mA
I I I I I Max. overvoltage: U
I I I I I Measurement ranges :
50 V : 2 kΩ... 200 GΩ
100 V : 4 kΩ... 400 GΩ
250 V : 10 kΩ... 1 TΩ
500 V : 20 kΩ... 2 TΩ
1000 V : 40 kΩ... 4 TΩ
Range 2 ... 999 kΩ
1.000..3.999
MΩ
Resolution 1 kΩ
50, 100, 250 50, 100, 250 50, 100, 250, 50, 100, 250, 50, 100, 250,
Voltage
500, 1000 V
Accuracy
DC voltage measurement after insulation test
I I I I I DC Voltage range: 25...1000 V
I I I I I Resolution : 0.5% V
DC
I I I I I Accuracy: ±1% R ±3 cts
I I I I I Voltage Vs load curve
Capacitance measurement (following the discharging of test object)
I I I I I Range : 0.005...4.999 µF
I I I I I Resolution: 1 nF
I I I I I Accuracy : ± (10% + 1 ct)
Graphs showing the typical changes in test voltage as a function of the load
at the nominal voltage
DC
DC
max. = 1200 V AC and DC for 10 seconds between the "+" and "-" terminals
rms
660 V AC and DC between the "G" and "-" or "G" and "+" terminals
4.00..39.99 40,0..399,9
MΩ MΩ
10 kΩ 100 kΩ
500, 1000 V 500, 1000 V
±(5% L +3 ct)
50 V test voltage
60
50
40
30
20
10
0
60
100 90 80 70
Resistance (kW)
55
DC
400...999 MΩ
4.00..39.99
1.000..3.999
GΩ
GΩ
1 MΩ 10 MΩ
50, 100, 250,
500, 1000 V 500, 1000 V
50 40 30 20 10 0
400...999 GΩ
40.0..399.9
GΩ 1.000...3.999
TΩ
100 MΩ 1 GΩ
250 V,
500, 1000 V 500, 1000 V
±(15% L +10 ct)