Troubleshooting; Solving Common Problems; Error Codes And Descriptions - EXFO EPM-50 Guide D'utilisation

Troubleshooting

7 Troubleshooting

Solving Common Problems

Problem
The unit does not turn on.
Reference power different than
source output power.

Error Codes and Descriptions

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