7451A/7461A/7461P Digital Multimeter Operation Manual
5.8.4 Trigger Count Setting
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5.8.4
Trigger Count Setting
Although the trigger system usually returns to the Idle state when receiving a trigger, it can return to the
trigger waiting state to receive triggers.
Trigger count can be set only by using a remote command.
Trigger count: 1 to 50000
5.8.5
Level Trigger and Delta Trigger
Data can be acquired into the measurement memory by detecting the change of an input signal and gener-
ating the trigger event.
The measurement data is always stored in the memory and the data before detecting the trigger is output
according to the pre-trigger setting.
Procedure
1. Set the trigger source to LEVEL or DELTA.
2. Set the sampling count. (7451A/61A: up to 10000, 7461P: up to 16000)
3. Set the parameter for detecting a trigger level.(LEVEL, SLOPE, DELTA,
PATRN)
4. The measurement in the set sampling interval starts when the
key is
pressed or *TRG command is received. The sampling interval can be set from 1
ms.
5. The level judgment is performed in each measurement and the trigger event is
generated when the level exceeds the threshold value.
6. After the trigger event is generated, the number of measurements set in N.Smpl
is performed and then the sampling stops.
The number of measurements performed after a trigger is detected varies depend-
ing on the pre-trigger setting.
NOTE:
If the trigger source is set to LEVEL or DELTA, HOLD: ON, Auto-range:
OFF, Measurement data memory: ON, Scaling calculation: OFF, and dB/
dBm calculation: OFF are set automatically.
If the function is set to the continuity measurement, frequency measurement,
diode measurement or temperature measurement, data acquisition starts
without any trigger detection.
TRIG
