![3M Dynatel 965AMS-BT Скачать руководство пользователя страница 47](http://html1.mh-extra.com/html/3m/dynatel-965ams-bt/dynatel-965ams-bt_user-manual_444015047.webp)
47
3M™ Dynatel™ Advanced Modular System 965AMS
Measurement Functions
Opens>
Operation
5.
The T-R measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
Press
Ring Gnd
to display
the R-G distance.
6.
The T-G measurement will
be saved on the screen in
a smaller box until a new
measurement updates the
screen.
7.
All measurements are erased when you exit this function.
Normal Range:
A good pair should have the T-G, R-G and T-R
within about 5% of each other. If they are not within 2%, the
shortest distance will be the location of the fault and the other
distances will not provide accurate distances. Typically this will
be an open ground bond or a broken Tip or Ring.
Note: “Opens” is more accurate if other cable pairs are active.
If other pairs are not active, short at least 30% of the inactive
pairs to the cable shield.
Dynatel 965AMS-BT.indd 47
6/21/06 10:48:15 AM