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Front Panel Operation
3-42 2001-900-01 Rev. K/ August 2010
MAX-SIGNAL-LEVEL
The maximum signal level is used to specify the maximum
expected input voltage or current level for frequency
measurements. The maximum signal level is set as follows:
1. From the CONFIGURE FREQUENCY menu, select
MAX-SIGNAL-LEVEL and press ENTER. Depending
on the presently selected input terminals (VOLTAGE or
CURRENT), one of the following menus is displayed:
MAXIMUM SIGNAL LEVEL
1V 10V 100V 1000V TTL
or
MAXIMUM SIGNAL LEVEL
1mA 10mA 100mA 1A
2. Highlight the desired maximum signal level and press
ENTER. Selecting the TTL parameter configures the
maximum signal level to 10V and the trigger level to
+0.80V.
RESOLUTION
The available display resolutions are 4 digits and 5 digits.
There is no auto resolution parameter on the frequency
function.
You can set the resolution as follows:
1. From the CONFIGURE FREQUENCY menu, select
RESOLUTION and press ENTER. The following menu
is displayed:
SET FREQ RESOLUTION
4-DIGITS 5-DIGITS
2. Highlight the desired resolution and press ENTER.
INPUT-TERMINALS
Both the volts and amps input terminals can be used to
measure frequency. The upper limit on the voltage terminals
is 15MHz; on the amps terminals it is 1MHz. The voltage
limit is subject to the 2 10
7
V•Hz product.
The input terminals for frequency measuring are set as
follows:
1. From the CONFIGURE FREQUENCY menu, select
INPUT-TERMINALS and press ENTER. The follow-
ing menu is shown:
FREQ INPUT SOURCE
VOLTAGE CURRENT
2. Highlight the desired input source and press ENTER.
COUPLING
This parameter selects the input coupling for the frequency
function. When AC coupling is selected, a DC blocking
capacitor is placed in series with the input. This removes the
DC component of the input signal.
74


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