Fluke 990DSL, User Manual

Page: 78 / 242

990DSL
Users Guide
4-14
Converting Fault Resistance Values to Distance Values
Often the fault resistances displayed are “hard” shorts or grounds, meaning
that the fault is at zero Ohms, and the resistance shown is only the conductor
resistance itself to that fault. In these situations, the Tester can convert the
resistances to distances
⎯
if you supply the cable gauge and temperature.
To convert the fault resistance values to distances, complete the following:
1. On the Shorts & Grounds result screen, press
D
(
Ohms-to-Distance
).
2. If the cable gauge or temperature is different from that specified in the
setup for the test, do the following:
•
If the pair consists of only one gauge, press
D
(
Setups)
, and select
the proper gauge and temperature. Then press
M
.
•
If the pair consists of more than one gauge, press
C
(
Multiple
Gauge
). Then enter each section length and gauge (see “Entering
Multiple Wire Gauge Information” for details). When done, press
M
to return to the resistance display.
3. Press
A
(
Convert to Distance
) to display the distances.