Agilent 4285A
Precision LCR Meter
Data Sheet
Specifications
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).
Mathematical functions
The deviation and the percent of deviation of
measurement values from a programmable refer-
ence 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
Sup-
plemental Performance Characteristics,
page 14,
for the measurement time)
Averaging
1 to 256, programmable
Measurement Functions
Measurement parameters
|Z| = Absolute value of impedance
|Y| = Absolute value of admittance
L = Inductance
C = Capacitance
R = Resistance
G = Conductance
D = Dissipation factor
Q = Quality factor
R
s
= Equivalent series resistance
R
p
= Parallel resistance
X = Reactance
B = Suceptance
θ
= Phase angle
Combinations of measurement parameters
|Z|, |Y|
θ
(deg),
θ
(rad)
L, C
D, Q, R
s
, R
p
, G
R
X
G
B
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
