02 | Keysight | 4285A Precision LCR Meter – Data Sheet
Specifications
The complete Keysight Technologies, Inc. 4285A specifications are listed below. These
specifications are the performance standards or limits against which the instrument is
tested. When shipped from the factory, the 4285A meets the specifications listed in this
section. The specification test procedures are covered in Keysight 4285A Maintenance
Manual (Keysight Part Number 04285-90030).
Measurement Functions
Measurement parameters
|Z| = Absolute value of impedance
|Y| = Absolute value of admittance
L
= Inductance
C
R
G
D
Q
= Capacitance
= Resistance
= Conductance
= Dissipation factor
= Quality factor
Rs = Equivalent series resistance
Rp = Parallel resistance
X
B
ø
= Reactance
= Suceptance
= Phase angle
Combinations of measurement parameters
|Z|, |Y|
L, C
D, Q, R , R , G
R
X
G
B
ø (deg), ø (rad)
s
p
Mathematical functions
The deviation and the percent of deviation of measurement values from a programmable
reference value.
Equivalent measurement circuit
Parallel and series
Ranging
Auto and manual (hold/up/down)
Trigger
Internal, external, BUS (GPIB), and manual
Delay time
Programmable delay from the trigger command to the start of the measurement,
0 to 60.000 s in 1 ms steps.
Measurement terminals
Four-terminal pair
Test cable length
0 m, 1 m, and 2 m selectable
Integration time
Short, medium, and long selectable (refer to Supplemental Performance Characteristics,
page 14, for the measurement time)
Averaging
1 to 256, programmable
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