④
④
Trigger Level
(Manual/TTL/ECL/50%)
Sets the trigger level for the signal to acquire by comparing with the trigger
source. Set the trigger level, adjust trigger level by rotating ENCODER.
Present level voltage value is displayed with position with ICON.
- Manual setting
Manually change the trigger level by rotating the TRIGGER LEVEL knob
or VARIABLE knob. The value of the changed trigger level will display.
- TTL
Sets the trigger level to to automatically recognize High/Low when the
observed signal is a TTL signal. Trigger level set at 1.4V
- ECL
Sets the trigger level to to automatically determine High/Low when the
observed signal is an ECL signal. Trigger level set at -1.3V
- SET TO 50%
This automatically sets the trigger level to the center of the high-low value
of the waveform currently displayed. This function is convenient when the
trigger level is beyond the display.Press Key longer than 2 seconds
to enter or exit the mode
Even at the falling edge, it is difficult to
acquire the waveform and observe the
signal due to signal noise.
Set to Noise Reject coupling to remove
the trigger source noise and the signal
will be acquired only at the rising edge
as desired.
Pattern Trigger
Press Key and press Key to select the mode.
Use this function to set each of the two trigger source High/Lows and to observe
the wavelength according to the area length matching the setting.
- Set the Source1,2 level and condition with the Encoder Switch.
- In condition, Between refers to time within ±7% of the set value of the Period.
Non-Between refers to time beyond this percentage range.
CH A High, CH A Low, CH B High,
CH B Low
Trigger Source1, Trigger Level, Manual, TTL,
ECL, Set to 50%
CH A High, CH A Low, CH B High,
CH B Low
Trigger Source2, Trigger Level, Manual, TTL,
ECC, Set to 50%
AND/OR/NAND/NOR
Shorter
(<)
, Longer
(>)
,
Equal
(=)
,
Not-Equal
(≠)
Input 1 Source and
Logic
Input 1 Level
Input 2 Source and
Logic
Input 2 Level
Gate
Condition / Period
Type
Sub menu
Setting
More 1/3
More 2/3
More 3/3
6. Oscilloscope Function
6. Oscilloscope Function
30
Hand-held Digital Oscilloscope Meter
31