Mindray DC-80A, Operator'S Manual

Page: 199 / 391

Physiological Signal 7-3
Tips:

The trigger mark is displayed in both freeze mode and live mode.

The marks in Dual trigger are different in color.

Trigger function is unavailable if the ECG trace is disappeared. Only the live 2D image can
be triggered.

No delay time or time interval shall less than the time required to scan a single image.

If the delay time is longer than a heart cycle, then the heart cycle between the delay time
is omitted, that is to say no trigger is occurred when R waveform is detected in the
duration.
7.1.2.2 Triggering Mode
There are three triggering modes available: Single, Dual and Timer.

Single Trigger: when an R waveform is detected, the image will be triggered after delay
time T1. The value of T1 can be changed in triggering status.

Dual Trigger: when an R waveform is detected, the image will be triggered respectively
after delay time T1 and T2. The value of T1 and T2 can be changed in triggering status.

Timer Trigger: an image will be triggered after a certain interval. The time interval can be
changed in triggering status.
The image trigger operation is described as follows (Take single trigger as an example):
1. Select exam mode.
2. Touch [Trig Mode] on the touch screen to enable the trigger.
3. Select [Single].
4. Set the delay time on the soft menu according to actual situation.
7.1.2.3 Real & Trigger
Click [Real & Trigger] on the soft menu to enable or disable the real trigger function.
After the [Real & Trigger] is turned on, two images are displayed respectively in two windows, one
is triggered by ECG, and the other is non-triggered real time image.