1

General Description

What's What

Features

Precautions

Getting Started Tutorial

2

Power On

Low Battery Indicator

Alarms

3

Operation

Installing the PC Communications Software on Your Computer

Setting the Communication Parameters

Cabling

Initial Setup

Software Reference

User Calibration - Setting the Zero and Span

Connecting the LI-820 to the LI-1400 Datalogger

4

Theory of Operation

System Overview

Optical Bench System

5

Maintenance

Cleaning the Optical Bench

Changing the Fuse

Storing the LI-820

6

Specifications

Additional details regarding the equations and configuration grammar are in the instruction manual.