Model 3550 LCR Meter Instruction Manual Instrument Description
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Instrument Description
The Model, 3550, is a high-speed LCR Meter capable of measuring Inductance (L), Capacitance(C),
Resistance (R), Absolute Impedance (|Z|), Absolute Admittance (|Y|), Dissipation factor (D),
Quality (Q), Serial Equivalent Resistance (Rs), Parallel Equivalent Resistance (Rp), Conductance
(G), Reactance (X), Susceptance (B), and Phase Angle (LJ). It has a wide measurement range, and
includes full adjustability of Measurement Frequency and Measurement Signal Level. It also
features Automatic adjustment for Zero Correction, Range Switching, and Series and Parallel Mode
Switching.
The basic comparator function of the 3550 is extended to allow sorting of components to up to 10
different bins. Up to 9 panels worth of measurement settings can be stored in the instrument’s
non-volatile memory for convenient recall. The instrument can perform a complete measurement
including a comparator judgment in as little as 40ms.
The 3550 has standard RS-232C and Control I/O Connector Interfaces with the availability of an
optional GPIB Interface. The Control I/Os are optically isolated thus making the instrument ideal
for noise immunity.
Feature Overview
The 3550 Programmable LCR Meter offers a complete solution for a wide variety of specialized LCR
measurement applications. Listed below are some of the features.
High Speed
The measurement time, including data display, zero correction, and comparator function is
approximately 40 milliseconds.
Extended Frequency Range
The Measurement Frequency can be adjusted between 42.0Hz - 5.00MHz.
Programmable Test Voltage and Current
The test signal level can be adjusted between 10mV to 5.00V in the constant voltage mode
and from 10µA to 99.99mA in the constant current mode.
Voltage & Current Monitor
The voltage at the test piece terminals and the current, which is flowing through the test
piece, can be displayed up to 3 significant digits.
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