Fluke Networks CertiFiber Pro Users Manual - Manual (Page 29)

Chapter 1: Get Acquainted
Safety Information
7
 Do not touch reflective surfaces (such as metal) to
the end of a fiber cable connected to the OTDR
when the OTDR is operating. An open fiber
connector endface has about a 4% reflection.
Holding a reflective surface near the connector
endface can cause more than a 4% reflection, which
can damage the photodetector in the OTDR.
 Use proper cleaning procedures to clean all fiber
connectors before every use. Neglecting this step or
using improper procedures can cause unreliable test
results and may permanently damage the
connectors. See Chapter 6.
 Use a video probe to periodically inspect the OTDR
connectors for scratches and other damage.
 Read the instructions for splice machines before
using the OTDR to monitor splicing procedures. The
OTDR can interfere with the light injection detection
techniques used by some splicers.