The steps for calibration are connecting the OTDR to the reference fiber optic cable with a clean and compatible connector; turning on the OTDR and selecting the appropriate wavelength, pulse width, range, and resolution settings; performing a trace of the reference fiber. The steps for calibration are connecting the OTDR to the reference fiber optic cable with a clean and compatible connector; turning on the OTDR and selecting the appropriate wavelength, pulse width, range, and resolution settings; performing a trace of the reference fiber. The handheld optical light source is a fiber optic tester which can provide dual-wavelength laser output. It provides excellent power stability for FTTx networks and fiber network testing. When combine with a power meter, it offers a quick and accurate testing solution on both single mode and. This document provides the users of USB2000+ Spectrometers with instructions for setting up, calibrating and performing experiments with their spectrometer. Contains descriptive. This manual covers FIS Power Meters with 0. These units feature efficient circuitry for prolonged battery life, easy-to-operate button controls, and a high-impact case. Contents Handheld Light Source Overview Features Accessories Specifications Functions Powering the Light Source Power Supply Options AA Battery Replacing Batteries Power Supply Unit Turning the Light Source On or Off Turning the Light Source On Auto Shutdown Function Turning the Light Source Off. ut port may get dirty, which results in the output power decreasing. If it can for a long period of time, remove the batteries to pre nto the Light Source adapters directly hi the light. In this article, you will learn the steps to calibrate fiber optic testing and measurement equipment, such as power meters, light sources, optical time domain reflectometers (OTDRs), and optical spectrum analyzers (OSAs). Experts who add quality contributions will have a chance to be featured.