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Table of Contents
Before Use .............................................................................................................. 4
Safety Precautions ............................................................................................... 4
1 About This Product ......................................................................................... 7
1-1 Overview .................................................................................................................... 7
1-2 Main Features ............................................................................................................ 7
1-3 Product Contents ....................................................................................................... 8
1-4 Attaching the Shoulder Belt ....................................................................................... 8
2 Description of the Parts .................................................................................. 9
3 Description of the Main Screens and Parts ................................................. 11
3-1 Screens During Measurement ................................................................................. 11
3-2 Standby Screens ..................................................................................................... 12
3-2-1 Measurement Mode Screens ........................................................................... 13
3-2-2 Setting Modes ................................................................................................... 14
3-2-3 Description of Icons .......................................................................................... 16
3-2-4 Screen Displayed When the Measurement Is Finished .................................... 17
3-2-5 Remaining Battery Level Display ...................................................................... 18
4 Power Supplies .............................................................................................. 18
4-1 Batteries ................................................................................................................... 18
4-2 Backup Battery ........................................................................................................ 19
4-3 AC Power Supply ..................................................................................................... 20
5 Replacing the Filters ..................................................................................... 21
5-1 Types of Filters ........................................................................................................ 21
5-2 Replacing the Filters ................................................................................................ 21
5-3 Attaching the Filter Covers ...................................................................................... 22
6 Operating the Air Sampling Port Cap .......................................................... 23
6-1 During BG Measurement and SPAN Measurement ................................................ 23
6-2 During Dust Measurement ....................................................................................... 23
6-3 Removing the Air Sampling Port .............................................................................. 23
7 Operating the Scattering Plate Knob ........................................................... 24
7-1 During BG Measurement and Dust Measurement .................................................. 24
7-2 During SPAN Measurement ..................................................................................... 24
8 Measuring Samples ....................................................................................... 25
8-1 Measurement Procedures ....................................................................................... 25
8-2 Preparing for the Measurement ............................................................................... 26
8-2-1 Operating the Power Switch ............................................................................. 26
8-2-2 BG Measurement Mode—BG Subtraction Function ......................................... 26
8-2-3 SPAN Measurement Mode—Sensitivity Correction .......................................... 27
8-3 Selecting the Measurement Mode ........................................................................... 28
8-3-1 Types of Modes ................................................................................................ 28
8-3-2 One Minute Measurement Mode and Other Modes (Countdown Timer
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