03 | Keysight | 4285A Precision LCR Meter – Data Sheet
Test Signal
Frequency
75 kHz to 30 MHz, 100 Hz solution
Frequency accuracy
±0.01%
Signal modes
Normal – Program selected voltage or current at the measurement terminals when they
are opened or shorted, respectively
Constant – Maintains selected voltage or current at the device under test (DUT)
independent of changes in the device’s impedance.
Signal level
The following test signal level accuracy is specified for an ambient temperature range of
23 °C ± 5 °C and the test cable length is 0 m.
Mode
Range
5 mV to 2 V
Setting accuracy
±{(8 + 0.4 f )% + 1 mV
Voltage
Normal
Constant
Normal
Constant
}
rms
rms
rms
m
1
1
10 mV to 1 V
±{(6 + 0.2 fm)% + 1 mV
}
rms
rms
rms
Current
200 μA to 20 mA
±{(8 + 1 f )% + 40 μA
}
rms
rms
rms
m
100 μA to 20 mA
±{(6 + 0.2 f )% + 40 μA
}
rms
rms
rms
m
1. When the ALC function is set to ON
For the temperature range of 0 °C to 55 °C, multiply the temperature induced setting
error listed in Figure 1-5 to the test signal setting accuracy. When test cable length is
1 m or 2 m, add the following error due to test cable length.
0.2 x fm x L [%]
where:
fm = Test frequency [MHz]
L
= Test cable length [m]
Output impedance
The following output impedance is specified for the test cable length of 0 m:
2
(25 + 0.5 f ) Ω ± 10 + fm
%
)
(
m
–
3
where:
fm = Test frequency [MHz]
KEYSIGHT [ Keysight Technologies ]
