Casio EA-200 Technical Reference page 13

Non-triggering Example (Trigger Edge = Rising)
Trigger
threshold
At start of trigger detection, sampled
value is greater than hysteresis lower limit.
To trigger at a target threshold, increase or decrease the hysteresis part with
the edge settings to specify the threshold.
However, make sure sampled value is outside of hysteresis range.
Countdown
(Trigger Source = 10)
1–10 Countdown (sec)
* Do not press SETUP, START/STOP, or ON/OFF key during countdown.
SONIC Trigger
(Trigger Source = 11)
Distance (meters)
6. Trigger Edge
Hard trigger
(Trigger Source = 2, 3, 4, 12)
0 Falling
Sampling started when [Sample Value] < [Trigger Threshold]
1 Rising
Sampling started when [Sample Value] > [Trigger Threshold]
2 Both (Rising and Falling)
Hysteresis
Does not exceed hysteresis upper limit.
SONIC Trigger
(Trigger Source = 11)
0 Falling
Sampling started when [Sample Value] < [Trigger Threshold]
1 Rising
Sampling started when [Sample Value] > [Trigger Threshold]
2 Difference Falling
Sampling started when [Sample Value] > [Trigger Threshold]
3 Difference Rising
Sampling started when [Current Value] – [Previous Value] > [Trigger
Threshold]
7. Clock Source
0 Timer
Conforms to sampling interval.
10 Same as Trigger Source
Sampled at same timing as Trigger Source.
Timer when Trigger Source is 0, 10, 11.
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