HP 4284A - Page 193

Capacitor
Measurements
This paragraph describ es practical example of measuring a 470 pF
ceramic capacitor.
The basic pro cedure ow to perform this measurement is the same as
the BASIC MEASUREMENT PROCEDURE described previously.
In this example a 470 pF ceramic capacitor will b e measured under
the following conditions.
Sample (DUT) : 470 pF ceramic capacitor (HP Part Number
0160-3335)
Measurement
Conditions
Function : C
p
-D
Frequency : 1 MHz
Test Signal Level : 1.5 V
Do not apply DC voltage
or current to the UNKNOWN
terminals. Doing so will
damage the HP 4284A. Before
you measure a capacitor, be
sure the capacitor is fully
discharged.
1. Turn the HP 4284A ON.
2. Setup the HP 4284A's measurement conditions by lling in the
elds on the MEAS DISPLAY page.
Set FREQ eld to 1 MHz, and LEVEL eld to 1.5 V. (The other
functions, including the measurement function are left as the
default settings.)
a. Move the cursor to the FREQ eld. The current measurement
frequency, 1.00000kHz , is displayed in this eld.
b. Press 4
1
5 . 1 will be displayed on the system message line, and
the softkey lab els will change to the available units (
NNNNNNNN
Hz ,
NNNNNNNNNNN
kHz ,
and
NNNNNNNNNNN
MHz ). Press
NNNNNNNNNNN
MHz . 1.00000MHz is now displayed in the
FREQ eld.
Note
The FREQUENCY can b e changed using
NNNNNNNNNNNNNN
INCR and
NNNNNNNNNNNNNN
DECR displayed
when the CURSOR moved to the FREQ eld.
c. Move the cursor to the LEVEL eld. The current test signal
level, 1.00V , is displayed in this eld.
d. Press 4
1
5 , 4
.
5 , 4
5
5 . 1.5 will be displayed on the system message
line, and the softkey lab els are c
hanged to the available units
(
NNNNNNNN
mV ,
NNNNN
V ,
NNNNNNNN
 A ,
NNNNNNNN
mA and
NNNNN
A ). Press
NNNNN
V . 1.50V is now displayed in
the LEVEL eld.
Note
The OSC LEVEL can b e changed using with
NNNNNNNNNNNNNN
INCR and
NNNNNNNNNNNNNN
DECR
displayed when the cursor is moved to the LEVEL eld.
Note
These measurement conditions can also b e set from the MEAS
SETUP page which is displayed when 4
MEAS SETUP
5 is pressed. The
set up op eration from the MEAS SETUP page is the same as in the
preceding steps 1 to 4.
6-24 Measurement Procedure and Examples