The different Global triggers are:

Manual Trigger

A push on the start button starts the measurement immediately unless the Delay is different from 0. The Delay will wait the given number of seconds before the measurement starts.

Clock Trigger

The measurement will start when the clock reaches the preset trigger time.

On Next Full Hour

Starts the measurement when next full hour begins.

External Trigger

The instrument may be set to trig on an external electric signal. See the description of Digital I/O lines for details.

Threshold Triggers

In this case the measurement will start when the function reaching predefined level. Possible triggers are:

• Above - when the level is above the selected level
• Below - when the level is below the selected level
• Exceeds - when the exceeds above the selected level
• Drops - when the level drops below the selected level

Immediate start

"Manual Trigger", starting the measurement directly when the START/STOP button is pressed, with Delay = 0.

Conditional start

If a trigger sequence is initiated (when the START/STOP button is pressed) the instrument starts to look for the trigger condition (e.g. correct clock). The front led is blinking blue and a timeglass is shown in the status bar in the measurement pictures until the measurement is started.