7.2 Troubleshooting
48
Troubleshooting
Symptom
Checks and Remedy
Cable length is not dis-
played
Is the cable between 2 and 300 m
long?
→
The cable length measurement
range of this instrument is 2 to
300 m (6.6 to 984-ft.). However,
cable length cannot be mea-
sured if the cable’s characteristic
impedance is far from 100
Ω
.
The Model 9628 LAN CABLE is
1 m long, so it cannot be mea-
sured.
The results of the cable
length test is different from
the actual cable length.
The amount of error specified for
cable length testing is ± 4%rdg. ±
1m. Please check first to see if the
test results come within this range.
→
If the test results are indeed out-
side of the accuracy range,
change the settings for the NVP
value. (p.31)
Open or other incorrect wir-
ing (? display) is displayed
even when a normal cable
is measured.
Have you ever connected to a live
telephone wire, etc.? (p.17)
→
The HiTester may be damaged
due to an application of overvolt-
age. Please send it for repair.
"No Terminator" is dis-
played
→
"Section 7.3 Error Display"
(p.50)
No ID number is displayed Are pins 1, 2, 3 and 6 connected
correctly in the test cable?
→
Check cable wiring.
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