Exfo EPM-ELS-50 Bedienungsanleitung Seite 24

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Troubleshooting 20
7 Troubleshooting
Solving Common Problems
Error Codes and Descriptions
ER: error code displayed until you press a key.
Problem Possible Cause Solution
The unit does not turn on. Batteries are discharged. Replace batteries.
Reference power different than
source output power.
Received power outside
detector’s range.
Change source output
power.
Error
Code
Description Solution
LIGH
(EPM-50
only)
Light detected while nulling offsets.
Nulling is not performed.
Correctly place protective cap on
detector port, then retry.
3/11 Embedded software problem. Contact EXFO.
7 Hardware problem. Replace unit.
13 Non-volatile memory corrupted
(would occur during unit
initialization).
³ Hold down all 3 buttons during
initialization to reset unit.
³ Unit must be recalibrated.
Contact EXFO.
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