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8. SPECIfICAtIoNS
8.1. rEfErENCE CoNdItIoNS
Influence quantities
Reference values
Temperature
23 ± 3°C
Relative humidity
45 to 55% RH
Supply voltage
9 to 12V
Frequency range
DC and 15.3 … 65Hz
Capacitance in parallel on resistance
0µF
Electric field
null
Magnetic field
<40A/m
the intrinsic uncertainty
is the error specified for the reference conditions.
the operating uncertainty
includes the intrinsic uncertainty plus variations of the quantities of influence (supply voltage,
temperature, interference, etc.) as defined in standard IEC-61557.
8.2. CHArACtErIStICS PEr fUNCtIoN
8.2.1. VoLtAGE
Characteristics
Measurement range
1.0 … 99.9V
100 … 999V
1000 … 2500V
2501 … 4000V
Resolution
0.1V
1V
2V
2V
Intrinsic uncertainty
±(1% +5 pt)
±(1% +1 pt)
Frequency range
DC or 15 … 500 Hz
DC
Input impedance:
3M
W
8.2.2. CUrrENt
Specified
measurement
range (DC)
0.000 … 0.399 nA
0.400 … 3.999 nA
4.00 … 39.99 nA
40.0 … 399.9 nA
400 nA … 3.999 µA
Resolution
1 pA
1 pA
10 pA
100 pA
1 nA
Intrinsic
uncertainty
±(15% + 10 pt)
±10%
±5%
Specified
measurement
range (DC)
4.00 … 39.99 µA
40.0 … 399.9 µA
400 µA … 3.999 mA
4.00 …9.999 mA
Resolution
10 nA
100 nA
1 µA
10 µA
Intrinsic
uncertainty
±5%
8.2.3. INSULAtIoN rESIStANCE
Method
: Voltage-current measurement per IEC-61557-2 from 300 to 10,000V and per DIN VDE 0413 Part 1/09.80).
Nominal output voltage
:
500, 1000, 2,500, 5000, 10000, and 15000V
dc
for the C.A. 6555
or adjustable from 40 to 10,000V
dc
and 15,000V
dc
for the C.A. 6555
Intrinsic uncertainty ±1%
adjustable from 40 to 10,00V
dc
in 10-V steps
adjustable from 1000 to 15,000V
dc
in 100-V steps