4-20
Model 3550 LCR Meter Instruction Manual Operating Instructions
Front Panel Description cont’d:
21 DISPLAY C Measurement Panel – [FREQ] [ V ] [ I ] [CV/CC] [DOWN] [UP]
The keys on the DISPLAY C Measurement panel are used to set the measurement frequency,
constant voltage, voltage or constant current mode, test signal amplitude and the measurement
that will be shown on DISPLAY C.
[FREQ] – Test Frequency Select Key
When [FREQ] is pressed, the test frequency will be shown on DISPLAY C. The displayed
test frequency setting can be adjusted using the [DOWN] and [UP] Keys to increment or
decrement the existing test frequency setting. To define the test frequency value, decimal
point location and units refer to the [SHIFT] ĺ [0]: Frequency Set Mode section.
[V] – Show Test Voltage on DISPLAY C
When the [V] key is pressed the test voltage will be shown on DISPLAY C. Pressing either
the [UP] or [DOWN] keys will adjust the test voltage. The test voltage, decimal point and
units can be set by using the [SHIFT] ĺ [V] key sequence.
The Model 3550 has programmable test voltages from 0.01V~5.00V for test frequencies of
42.0Hz~1.00MHz. For test frequencies above 1.00MHz, the voltage can be adjusted
between 0.01V and 1.00V. Test voltages are adjustable in steps of 0.01V and are displayed
in DISPLAY C to three significant digits.
When in the constant voltage mode, and the [UP] or [DOWN] keys are pressed, DISPLAY C
will momentarily show the open circuit test voltage setting before displaying the constant
voltage applied to the actual test device terminals. If either the [UP] or [DOWN] key is
pressed and held, the voltage setting will display and the setting will either scroll up or
down (depending on whether the [UP] or [DOWN] key is pressed.
[I] – Show Test Current on DISPLAY C
When [I] is pressed, the test current flowing through the DUT will be displayed. Pressing
either the [UP] or [DOWN] keys will adjust the test current level. The test current, decimal
point and units can be set by using the [SHIFT] ĺ [I] key sequence.
Programmable test currents are available from 0.01mA~99.99mA for test frequencies of
42.0Hz~1.00MHz. For test frequencies above 1.00MHz, the current can be set between
0.01mA and 20.00mA. The 3550’s test current is adjustable in 0.01mA steps and is
displayed to three significant digits.
When in the constant current mode, and the [UP] or [DOWN] keys are pressed, DISPLAY C
will momentarily show the open circuit test voltage setting before displaying the actual
current flowing through the test device. If either the [UP] or [DOWN] key is pressed and
held, the voltage setting will display and the setting will either scroll up or down (depending
on whether the [UP] or [DOWN] key is pressed.
To Next Page
Loading...
