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AD1000 User’s Manual
- 101 -
Touch screen is not
responding properly
with stylus
Touch screen
needs calibration
Connect external USB mouse to
calibrate the stylus.
AD1000 indicates
low battery after
battery is fully
charged
Battery is not fully
charged.
Re-calibrate the battery
19.2 Trace Measurement Problems and Solutions
Problem
Possible Reason
Solution
Expected events are
not shown in the
trace
Events are too close
to each other.
u
Try again with short pulsewidth
u
Try testing from the other end of
the fiber
SNR is poor
Try again with wide pulsewidth or
increase averaging time.
Wrong configuration
Check OTDR parameters, like
Reflection threshold, non-reflection
threshold and end threshold,
re-analyze or test again.
Special
events
appear at the end of
the trace
Wrong configuration,
e.g.
wrong
end
threshold setting.
Adjust configuration and test again.
The fiber under test
is too long to exceed
the range.
Select proper range and test again.
20 Warranty
20.1 Terms of Warranty
All AD INSTRUMENTS products are warranted against defective material and
workmanship for a period of one (1) year from the date of shipment to the original
customer. Any product found to be defective within the warranty period would be
repaired or replaced by AD Instruments free of charge.