METREL MI 2893 User Manual

MI 2893 / MI 2892 / MI 2885 Measurement methods
208
voltage U
Rms(1/2)
values (one cycle RMS voltage refreshed each half cycle) is measured for each interval.
In following figures, Level triggering is shown.
Inrush, fluctuation or other event
Measured signal
Inrush record
t
U or I
t
I
R
ms(1/2)
or
U
Rms(1/2)
Trigger Level
Slope: Fall
U or I
Trigger point
Figure 173: Level triggering
Triggering slope
Slope: rise
t
t
Slope: fall
Figure 174: Triggering slope
5.1.20 Transient recorder
Transient recorder is similar to waveform recorder. It stores a selectable set of pre- and post-trigger
samples on trigger activation, but with higher sampling rate:
- 1MHz for MI 2893
- 49 kHz for MI 2892/MI 2885
Recorder can be triggered on envelope or level.
Envelope trigger is activated if difference between same samples on two consecutive periods of
triggering signal, is greater than given limit.

METREL MI 2893 Specifications

General

Brand	METREL
Model	MI 2893
Category	Measuring Instruments
Language	English