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5.4.1
Opening Previously Stored Transients
The screen below can be accessed with the retrieve
transients previously stored in the memory.
1
2
If the "@" symbol appears as the first letter of the recording name (e.g. @EST
05), the data may be corrupted and should be checked carefully.
The status bar at the top displays the memory filled by stored transients.
Name and transient number (from 01 to 50) for each stored transient.
Transient recording time and date are displayed for each transient.
-
To select a transient, press the
button
-
To delete a selected transient, press the
button
the
5.4.2
Storing the Trigger
The threshold T in percent, defined as an envelope width (over and under) the last
cycle of signal V or A input signal. Its width W is calculated with the nominal mea-
surement range R for a channel (depending on the selected current sensor).
Example: Using the SR193 probe and a 2% trigger level, the width would be 1000A
x 2% = 20A. Therefore, a deviation of ±20A will cause a transient event to be cap-
tured.
54
SELECTION OF TRANSIENT
TEST 05
TEST 04
TEST 03
TEST 02
TEST 01
07/25/02 10:56
05/07/02 14:31:41
05/07/02 14:31:41
05/07/02 14:31:21
05/07/02 14:31:04
05/07/02 14:31:04
Figure 5-16
buttons, then select it with the
W = T x R
Power Quality Analyzer Model 3945-B
button. It displays a list
100%
button, then confirm it with
3
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