95x Series Operating Manual - May 17, 2022
Page
67
of
155
Test Voltage Overshoot
<5% (<0.25s ramp time)
<1%
Settling to <±0.1% of final value in <0.5sec
CURRENT MEASUREMENTS (DUT ISOLATED)
Measurements are performed in the
RETURN
terminal of the 95x.
Breakdown Current
1uA to 280mApk (DC-50kHz bandwidth)
<(± 1% ± 1uA) accuracy
<30usec detection time
<3msec response time (typically <500usec)
Leakage Current
0.0nA to 200mA
7.25msec measurement period (100ms for dwell time >2 sec)
<(± 0.25% ± 0.5nA) accuracy
Capacitive Loading Effects :
951i, 952i and 956i : add X * (± 0.2nA ± (2.5nA per KV))
953i, 954i and 955i : add X * (± 0.3nA ± (3.5nA per KV))
957i : add X * (± 0.5nA ± (5nA per KV))
X = (C/0.01uF) below 0.01uF, or X =
√(C/1uF) above 1uF, or otherwise
X = 1.0
Arc Current
1 to 30mArms (50KHz-5MHz bandwidth)
<(± 10% ± 1mA) accuracy at 1MHz
4us, 10us, 15us, 20us, 30us or 40us measurement period
Cable Compensation
<(± 1% of error)
RESISTANCE MEASUREMENTS (DUT ISOLATED)
Measurements are performed between the
HV
and
RETURN
terminals of the 95x.
For applied voltage, breakdown current and arc current accuracies see above.
In the chart below R is the reading in Ohms, C is the capacitive loading. Interpolate between voltages as needed,
for accuracies at capacitances above 5uF consult Vitrek. Accuracies are shown as the percentage of the reading.
Test
Voltage
C < 0.01uF
C = 0.01uF to 1uF
C = 1uF to 5uF
951i, 952i or 956i
50V
10K-30G
Ω
: ±0.8%±(R/1G
Ω
)%
10K-20G
Ω
:
±0.8%±(R/600M
Ω
)%
10K-10G
Ω
:
±0.8%±(R/400M
Ω
)%
100V
10K-60G
Ω
: ±0.7%±(R/2G
Ω
)%
10K-30G
Ω
: ±0.7%±(R/1G
Ω
)%
10K-20G
Ω
:
±0.7%±(R/600M
Ω
)%
250V
10K-150G
Ω
: ±0.6%±(R/5G
Ω
)%
10K-60G
Ω
: ±0.6%±(R/1.5G
Ω
)%
10K-30G
Ω
: ±0.6%±(R/1G
Ω
)%
500V
10K-300G
Ω
:
±0.6%±(R/10G
Ω
)%
10K-80G
Ω
: ±0.6%±(R/2.5G
Ω
)%
10K-40G
Ω
: ±0.6%±(R/1G
Ω
)%
1000V
20K-600G
Ω
:
±0.6%±(R/20G
Ω
)%
20K-100G
Ω
: ±0.6%±(R/3G
Ω
)%
20K-50G
Ω
: ±0.6%±(R/1.5G
Ω
)%
2500V
50K-1.5T
Ω
: ±0.6%±(R/50G
Ω
)%
50K-100G
Ω
: ±0.6%±(R/3G
Ω
)%
50K-50G
Ω
: ±0.6%±(R/1.5G
Ω
)%
5000V
100K-3T
Ω
:
±0.6%±(R/100G
Ω
)%
100K-100G
Ω
: ±0.6%±(R/3G
Ω
)%
100K-50G
Ω
:
±0.6%±(R/1.5G
Ω
)%
953i, 954i or 955i
50V
10K-30G
Ω
: ±0.8%±(R/1G
Ω
)%
10K-15G
Ω
:
±0.8%±(R/500M
Ω
)%
10K-10G
Ω
:
±0.8%±(R/300M
Ω
)%
