U
SER
M
ANUAL
750000992/16
5-21
MTS
e
Addition of markers
Note
If only automatic measurements are to be made, verify that the lock
marker function is not activated (i.e. icon
not shown in the
title bar of the display).
Using this method of detection and measurement allows you to rapidly find all
the events on the fiber under test.
If an automatic measurement does not detect all the events, additional manual
measurements can be made.
To delete all the markers, select <Expert> followed by <Delete Results>.
When no measurements have been made, if you want to make an automatic
measurement, select <Expert> followed by <Auto measure>.
The following measurement sequence is recommended:
1.
Full automatic measurement
. The instrument automatically locates and
measures the events.
2.
Addition of markers
(in the case of low loss splices and close events). In this
case, the MTS
e
automatically measures the slopes before and after the
selected markers and measures the splice losses.
3.
Addition of manual measurements
if necessary (in the case of very close
events). The MTS
e
follows the user measurements. All previous
measurements are retained.
Note
If you only want to perform automatic measurements when a mea-
surement is already in place:
1. Press the <Expert> key.
2. Press the <Delete results> key.
3. Press the <Auto Measure> key.
Addition of markers
When performing measurements, it is recommended to use the following
configuration:
•
set thresholds to
All
in the
TEST SET UP
menu.
•
set
Results on trace
to
YES
in the
TEST SET UP
menu.
You can manually position event markers anywhere on the trace where you want
to make specific measurements using the automatic measurement mode with
markers.
You can also specify locations where you want to position additional markers to
those automatically placed during an automatic measurement. You can then use
the automatic measurement mode with markers to display the results of all
measurements made using the combination of these markers.
Display of markers
Markers are represented by :
•
if they are placed by automatic measurements or with the <Marker> key.
•
if they are placed by manual measurements in Expert mode.
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