LCX_UserManual_en_08_1.pdf - 第36页
Getting started R&S ® LCX Series 36 User Manual 1 179.2260.02 ─ 08 5. On the front panel, press the [Auto] key to enable automatic detection of the mea- surement function according to the component type of the DUT . …
Getting started
R&S
®
LCX Series
35User Manual 1179.2260.02 ─ 08
a) Press the [settings] key at the front panel.
On the front panel, press the [settings] button.
b) In the "Device" tab, select "Save/Recall Device Settings".
c) Select "Default Settings".
The instrument prompts you to confirm the operation.
d) Confirm with "Ok".
The R&S LCX resets all parameters except for system settings.
e)
Select
to return to the settings menu.
Connecting the test fixture
The figure shows schematically the elements to be connected.
► To connect the test fixture, proceed as described in Section 4.1.9, "Connecting a
test fixture", on page 25.
Setting up the test signal
To configure the test signal:
1. To set the frequency:
a) On the screen, select "Frequency".
b) Enter, e.g. 10 kHz using the keypad on the screen.
c)
Confirm with
.
2. To select the level parameter:
Before setting the test signal level, you can select either the signal voltage, or the
signal current for the level setting:
a) Press the [settings] at the front panel.
b) Select the "Measurement" tab.
c) Select "Test Signal Level".
d) Select, e.g. "Voltage".
e) Confirm with "Set".
f) Press the [home] key to return to the measurement window.
The R&S LCX provides the selected parameter for the level setting on the screen.
3. To set the test signal level:
a) On the screen, select "Level".
b) Enter, e.g. 1.3 VRMS.
c)
Confirm with
.
4. If you know the expected range, set the range as follows.
Otherwise skip this step and proceed with step 5:
a) Select "Range".
b) In the "Select Measurement Range" dialog, select the expected impedance,
e.g. 10 kΩ.
c) Confirm with "Set".
Trying out the instrument
Getting started
R&S
®
LCX Series
36User Manual 1179.2260.02 ─ 08
5. On the front panel, press the [Auto] key to enable automatic detection of the mea-
surement function according to the component type of the DUT.
Aligning the instrument on all frequencies
To compensate impacts and measurement errors, you can align the instrument on all
frequencies before starting the measurement.
This example describes how to execute a short and an open correction with the con-
nected SMD test fixture (R&S LCX-Z3).
During the correction procedure, the R&S LCX sweeps through defined frequency
steps that are determined by the selected source impedance and the correction mode.
For information on the frequency steps, see Table 8-1.
1. Press the [Comp.] key at the front panel.
The "Open/Short/Load Correction" dialog opens.
2. Execute a short correction:
a) Short-circuit the contact devices, i.e. the clamps or pins, according to the used
test fixture.
b) In the "Open/Short/Load Correction" dialog, select "Short correction".
c) Set "Enabled" > "ON".
d) Select "Start Short Correction (Full)".
The short correction takes about 2 minutes.
3. Execute an open correction:
a) Open the contact devices.
Depending on the test fixture, take care that you set the required position.
For example, Kelvin clamps require the same position as expected for the mea-
surement, or the spacing between SMD pins must correspond to the size of the
measurement sample.
b) In the "Open/Short/Load Correction" dialog, select "Open correction".
c) Set "Enabled" > "ON".
d) Select "Start Open Correction (Full)".
The open correction also lasts for about 2 minutes.
Note: For information on corrections with other test fixtures, see Section 6.1,
"About test fixtures", on page 53.
Measuring a resistor
1. To select the resistor measurement (DUT component type), press the [R] key.
2. To select the parameters for measurement results display:
a) Select the softkey in the upper left corner, to open the selection editor.
b) Select the parameters "R-X" (resistance, reactance).
c) Repeat the steps to select the second parameters, e.g. select "Z-Θ" (impe-
dance, phase angle).
Trying out the instrument
Getting started
R&S
®
LCX Series
37User Manual 1179.2260.02 ─ 08
3. Insert the sample resistor in the test fixture as follows:
a) To open the contact pins, relax and hold the lever to the left.
b) Carefully position the sample between the contacts in the center.
c) Release the lever to fix the sample.
The measurement starts and you can see the readings on the screen.
4.4 Instrument control
This section provides an overview on how to work with the R&S LCX. It introduces the
possibilities for operating the instrument and describes the basic functionality of the
control elements. If a measurement configuration requires specific operating steps, the
corresponding settings description in the user manual points it out separately.
● Ways to operate the instrument.............................................................................. 37
● Means of manual interaction...................................................................................37
● Remote control........................................................................................................48
4.4.1 Ways to operate the instrument
You can operate an R&S LCX in two ways:
●
Manual operation
Use the touchscreen and the front panel controls to configure general and mea-
surement settings.
See Section 4.4.2, "Means of manual interaction", on page 37 for basic informa-
tion on the manual operation of the instrument.
●
Remote control
Create programs to automatize repeating settings, tests and measurements. A
controller PC with remote access to the instrument runs the programs.
See Section 4.4.3, "Remote control", on page 48 for an overview of the interfaces
provided for remote control.
4.4.2 Means of manual interaction
For manual interaction of the R&S LCX, use the touchscreen and front panel controls,
see front panel. The display shows the current settings, menus and dialogs, when you
perform your settings.
For the manual interaction with the R&S LCX, you have several methods that you can
use as an alternative to perform a task:
●
Touchscreen
Touchscreen operation is the most direct way to interact with the instrument.
Almost all control elements and actions on the screen are based on the standard
operating system concept. You can tap any user interface element to set parame-
ters in dialogs, enter data, or scroll within a dialog.
Instrument control