Pendulum CNT-90 Series User Manual

Using the Controls
have selected Frequency, you can then select
between Frequency, Frequency Ratio and
Frequency Burst. Finally you have to decide
which input channel(s) to use.
Autoset/Preset
By depressing this key once after selecting
the wanted measurement function and input
channel, you will most probably get a
measurement result. The
AUTOSET system
ensures that the trigger levels are set
optimally for each combination of
measurement function and input signal
amplitude, provided relatively normal signal
waveforms are applied. If Manual Trigger has
been selected before pressing the AUTOSET
key, the system will make the necessary
adjustments once (Auto Once) and then
return to its inactive condition.
AUTOSET performs the following functions:
•
Set automatic trigger levels
•
Switch attenuators to 1x
•
Turn on the display
•
Set Auto Trig Low Freq to
■
100 Hz, if f
in
>100Hz, or to
■
f
in,
if 10<f
in
<100 Hz, or to
■
10 Hz, if fin <10Hz
A higher value means faster settling time.
By depressing this key twice within two sec-
onds, you will enter the
Preset mode, and a
more extensive automatic setting will take
place. In addition to the functions above, the
following functions will be performed:
• Set Meas Time to 200 ms
• Switch off Hold-Off
• Set HOLD/RUN to RUN
• Switch off MATH/LIM
• Switch off Analog and Digital Filters
• Set Timebase Ref to Auto
• Switch off Arming
■ Default Settings
An even more comprehensive preset function
can be performed by recalling the factory de-
fault settings. See page 2-16.
Move Cursor
There are four arrow keys for moving the
cursor, normally marked by text inversion,
around the menu trees in two dimensions.
Display Contrast
When no cursor is visible (no active menu se-
lected), the
UP/DOWN arrows are used for
adjusting the LCD display contrast ratio.
Enter
The key marked ENTER enables you to con-
firm a choice without leaving your menu
position.
Save & Exit
This hard key is marked EXIT/OK. You will
confirm your selection by depressing it, and
at the same time you will leave the current
menu level for the next higher level.
Don't Save & Exit
This hard key is marked CANCEL. By de-
pressing it you will enter the preceding menu
level without confirming any selections made
at the current level.
If the instrument is in
REMOTE mode, this key
is used for returning to
LOCAL mode, unless
LOCAL LOCKOUT has been programmed.
USER MANUAL ● CNT 9x Series ● Rev.22 February 2020
2-8

Pendulum CNT-90 Series Specifications

General

Brand	Pendulum
Model	CNT-90 Series
Category	Measuring Instruments
Language	English