5-3
IM 710105-03E
Specifications
1
2
3
4
5
App
Index
5.2 Triggering Section
Item
Specifications
Trigger modes
Auto, Auto Level, Normal, Single, N Single
The DLM2000 measures in Single mode when you start acquisition by pressing the SINGLE key
or when you start acquisition by pressing the RUN/STOP key when the record length setting only
allows for single acquisition.
Trigger sources
CH1 to CH4
1
Signals received through input terminals
LINE:
The connected commercial power supply signal (only Edge trigger can be used)
EXT:
The signal received through the TRIG IN terminal (EXT. terminal on the
DLM2022, DLM2032, and DLM2052)
Logic bits 0 to 7
2
Signals received through the logic signal input port terminals
Trigger coupling
CH1 to CH4:
1
DC/AC
EXT:
DC
HF rejection
Trigger source bandwidth limit can be specified separately for CH1 to CH4.
1
OFF:
No bandwidth limit
15 kHz:
DC to approximately 15 kHz
20 MHz :
DC to approximately 20 MHz
Noise rejection
Noise rejection can be turned on or off (trigger level hysteresis can be selected) for CH1 to CH4
1
separately. Noise rejection cannot be specified on channels set to TV trigger.
OFF:
Approximately 0.3 divisions* of hysteresis
ON:
Approximately 1.0 divisions* of hysteresis
Selectable trigger level range CH1 to CH4:
1
±4 divisions from the screen center
EXT:
±2 V (DLM2024, DLM2034, DLM2054)
±1 V (±1 V range on the DLM2022, DLM2032, DLM2052)
±10 V (±10 V range on the DLM2022, DLM2032, DLM2052)
Trigger level resolution
CH1 to CH4:
1
0.01 divisions (0.1 divisions for TV triggers)
EXT:
5 mV (DLM2024, DLM2034, DLM2054)
5 mV (±1 V range on the DLM2022, DLM2032, DLM2052)
50 mV (±10 V range on the DLM2022, DLM2032, DLM2052)
Trigger level accuracy
CH1 to CH4:
1, 3
±(0.2 div 10% of the trigger level)
EXT:
4
±(50 mV + 10% of the trigger level) for DLM2024, DLM2034, DLM2054
±(50 mV + 10% of the trigger level) for the ±1 V range on the DLM2022,
DLM2032, DLM2052
±(500 mV + 10% of the trigger level) for the ±10 V range on the DLM2022,
DLM2032, DLM2052
Window comparator setting Window comparator can be turned on or off for CH1 to CH4
1
separately
OFF:
Normal comparator
Edge polarities: Rise and Fall. Qualifications: H, L, and X.
ON:
Window comparator
Edge polarities: Enter and Exit. Qualifications: IN, OUT, and X.
Selectable window trigger
level range
CH1 to CH4
1
separately
Center:
±4 divisions from the screen center
Width:
±4 divisions around the center
Window trigger level
accuracy
The following trigger level accuracy applies to the upper and lower limits of the window that are
specified using the Center and Width settings. The upper and lower limits are set separately for
CH1 to CH4.
1
±(0.2 div 10% of the trigger level)
However, the accuracy does not apply to an upper or lower limit that falls outside ±4 divisions from
the screen center.
External trigger probe
attenuation setting
1:1, 10:1
Trigger sensitivity
CH1 to CH4
1
:
1 div
P-P
DC to the maximum bandwidth (with noise rejection set to
off)
EXT:
100 mV
P-P
DC to 100 MHz (DLM2024, DLM2034, DLM2054)
100 mV
P-P
DC to 100 MHz (±1 V range on the DLM2022, DLM2032,
DLM2052)
1 V
P-P
DC to 100 MHz (±10 V range on the DLM2022, DLM2032,
DLM2052)
Trigger position
Can be set as a percentage of the display record length in 0.1% steps
