Recall the DEFAULT settings.
Press MEAS FUNC Volt Vpp A
Press INPUT A and select DC coupling.
Do not apply an input signal to Input A
yet.
The display should now indicate
(disregard the main parameter V
PP
):
V
MIN= 0 ± 0.015 V and VMAX= 0 ±
0.015 V
Adjust the current limit of the voltage
source to <200 mA.
Connect +2.500 VDC to Channel A, using
the external low-pass filter on the input.
The display should now
indicate: V
MIN = 2.500 ± 0.040
V and V
MAX = 2.500 ± 0.040 V
Repeat the measurement with inverted
polarity.
Press INPUT A and select 10x.
CAUTION: Before the next step, make sure
the input impedance is still 1 M
.
Applying more than 12 V without proper
current limiting may cause extensive
damage to the main PCB, if the
impedance is set to 50
.
Change the DC level to +50.00 V.
The display should now
indicate: V
MIN
= 50.00 ± 0.65 V
and V
MAX
= 50.00 ± 0.65 V
Repeat the measurement with inverted
polarity.
Disconnect the DC voltage from
Channel A.
Remove the external low-pass filter.
Press INPUT A and select 1x.
Connect a sinusoidal signal to Input A
with an amplitude of 4.000 Vpp and a
frequency of 100 kHz.
The display should now
indicate: 4.000 ± 0.150 VPP.
Press INPUT A and select 10x.
Change the amplitude to 18.00 VPP.
indicate: 18.00 ± 0.84 V
PP
.
Disconnect the signal from Channel A.
Press MEAS FUNC Volt Vpp B
Press INPUT B and select DC coupling.
Do not apply an input signal to Input B
yet.
The display should now indicate
(disregard the main parameter V
PP):
V
MIN
= 0 ±0.015 V and V
MAX
= 0 ±
0.015 V
Proceed by repeating the measurements
for Input B as described above for
USER MANUAL ● CNT 9x Series ● Rev.22 February 2020
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