EXFO EPM-50 Series - 7 Troubleshooting; Solving Common Problems; Error Codes and Descriptions

Troubleshooting
19
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.
Erro
r
Cod
e
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).
)
Hold down all 3 buttons
during
initialization to reset unit.
)
Unit must be recalibrated.
Contact EXFO.