Supplemental information, Settling time, Measurement circuit protection – Atec Agilent-E4980A User Manual
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Settling time
Table 50. Test frequency setting time
Test frequency setting time
Test frequency (Fm)
5 ms
Fm ≥ 1 kHz
12 ms
1 kHz > Fm ≥ 250 Hz
22 ms
250 Hz > Fm ≥ 60 Hz
42 ms
60 Hz > Fm
Table 51. Test signal voltage setting time
Test signal voltage setting time
Test frequency (Fm)
11 ms
Fm ≥ 1 kHz
18 ms
1 kHz > Fm ≥ 250 Hz
26 ms
250 Hz > Fm ≥ 60 Hz
48 ms
60 Hz > Fm
Switching of the impedance range is as follows:
≤ 5 ms/ range switching
Measurement circuit protection
The maximum discharge withstand voltage, where the internal circuit remains protected
if a charged capacitor is connected to the UNKNOWN terminal, is given below.
Table 52. Maximum discharge withstand voltage
Maximum discharge withstand voltage Range of capacitance value C of DUT
1000 V
C < 2 µF
√ 2/C V
2 µF ≤ C
Figure 8. Maximum discharge withstand voltage
Supplemental
Information
Note
Discharge capacitors before connecting them
to the UNKNOWN terminal or a test fixture to
avoid damages to the instrument.
0
200
400
600
800
1000
1200
1.E–15
1.E–13
1.E–11
1.E–09
1.E–07
1.E–05
1.E–03
Voltage [V]
Capacitance [F]