AEA Technology 20TDR, Основное руководство

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35
User Troubleshooting Guide
Symptom Possible
Causes Solutions
On power up,
relays may
click, but there
is no visible
display Display contrast
setting is not in
line with
temperature Adjust contrast with blank screen - Press
“Meter” key, press
▲ 6 times, press ▼
once, press
►
repeatedly until text
appears. Alternative – Perform a Soft Reset
(See Basic Guide. Section 1)
On power up,
no relays click
& no display
appears Power source or
batteries at fault Try a second power source. If on
batteries use AC or DC adapter. If
on AC use different outlet. If on DC
turn on vehicle. Lastly, install 8 AA
fresh batteries.
On power up,
display
appears, but
there is no
activity. Illegal
instrument state Turn off and perform a Soft Reset
(See Basic Guide, Section 1).
TDR has large
offset distance Start Distance
setting or “Test
Lead Null.” is
ON or both Press “Trace” key & reset Start
Distance to 0 and/or turn OFF Test
Lead Null.
TDR distance
readings are in
error Wrong cable
type or VF
selected. Press “Cables” key to pick matching
cable type or “Velocity Srch.” or
“Sample Cable” to find correct VF
Tone Function
has AC noise
over tone
frequencies AC adapter
power in use Operate the TDR Tone Function on
battery power only to eliminate AC
interference
ETDR PC
Vision
software
TDR and PC
show
“Disconnected”
in “Connection
Status” 1.TDR is OFF
or not in
Measurement
Screen.
2. USB Cable
not connected
3. PC setups
are incorrect 1. Turn TDR ON to Measurement
Screen and try again.
2. Recheck USB cable connections
3. See Basic Guide, Section 3 for
more corrective actions.
Get Traces tab
only has “Plot
Archive Trace”
button active No TDR
connected or
TDR is not
recognized Normal for working with Archived
Traces only, or check items shown
above