Agilent 4285A
Precision LCR Meter
Data Sheet
Mathematical functions
Specifications
The deviation and the percent of deviation of
measurement values from a programmable refer-
ence value.
The complete Agilent Technologies 4285A specifi-
cations 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 Agilent 4285A Maintenance Manual
(Agilent Part Number 04285-90030).
Equivalent measurement circuit
Parallel and series
Ranging
Auto and manual (hold/up/down)
Measurement Functions
Trigger
Measurement parameters
Internal, external, BUS (GPIB), and manual
|Z| = Absolute value of impedance
|Y| = Absolute value of admittance
Delay time
L
= Inductance
Programmable delay from the trigger command to
the start of the measurement, 0 to 60.000 s in 1 ms
steps.
C
R
G
D
Q
= Capacitance
= Resistance
= Conductance
= Dissipation factor
= Quality factor
Measurement terminals
Four-terminal pair
Rs = Equivalent series resistance
Rp = Parallel resistance
Test cable length
0 m, 1 m, and 2 m selectable
X
B
θ
= Reactance
= Suceptance
= Phase angle
Integration time
Short, medium, and long selectable (refer to Sup-
plemental Performance Characteristics, page 14,
for the measurement time)
Combinations of measurement parameters
|Z|, |Y|
L, C
R
G
θ (deg), θ (rad)
D, Q, Rs, Rp, G
X
B
Averaging
1 to 256, programmable
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