Buzzer Switch Setting; Basic Performance Indicators; Measurement Parameter; Equivalent Mode - East Tester ET4501 User Manual

ET4501/4502/4510 台式 LCR 数字电桥操作手册

4.2.20 Buzzer Switch Setting

Step 1: Turn on the instrument to enter the interface of measurement display, and press the
key to enter the Interface of System Setting.
Step 2: Move the cursor to the "buzzer" via the left and right direction keys, and then switch
the buzzer switch (ON and OFF) through the up and down direction keys.
The selection range for the system setting parameters is as shown in the table below.
System Chinese, English
Language
Brightness 30%, 50%, 70%, 100%
Adjustment
Power-on Default value, previous value
Setting
Buzzer OFF, ON

5 Basic Performance Indicators

5.1 Measurement Parameter

(1) Main parameter: L: inductance; C: capacitance; R: resistance; Z: impedance.
(2) Secondary parameter: X: reactance; D: loss; Q: quality factor; θ: impedance angle ESR: series
equivalent resistance.
(3) Measurement Parameter combination: the combination of main parameter and any secondary
parameter
5.2

Equivalent Mode

SER: series connection; PAR: parallel connection.
The actual inductance, capacitance and resistance are not the ideal pure reactance or
resistance elements, but the complex impedance elements in series or parallel form; this
instrument calculates the required value according to the series or parallel equivalent circuit with
different equivalent circuit obtaining different results. The two equivalent circuits can be
converted through the formula listed in the table Equivalent Circuit Conversion. Q and D are the
same regardless of what equivalent mode.
The circuit models and formulas of the six series and parallel equivalent circuits are
described below: capacitance, inductance and resistance. The formula contains all the types of first
measurement and second measurement.
Capacitance(C)
Diagram of Parallel Connection
杭州中创电子有限公司
Series/parallel Circuit Model
Schematic Diagram of Series Connection Schematic
19