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Table of Contents

Introduction .................................................................................................................................................................................... 1

Display for safe use .................................................................................................................................................................... 2

Safety Precautions ..................................................................................................................................................................... 3

Notation Rules Used in This Manual ................................................................................................................................... 8

1. Before Use ............................................................................................................................................................. 9

1.1

Checking the Unit and Supplied Parts ................................................................................................................. 9

1.2

Part Names and Function ........................................................................................................................................10

1.3

Preparation .....................................................................................................................................................................18

1.3.1

Connecting the AC Adapter .................................................................................................................................................................... 18

1.3.2

Connecting a PC ........................................................................................................................................................................................... 20

1.3.3

Collimation of the Measured Object .................................................................................................................................................... 22

1.3.4

Turning ON/OFF the Power .................................................................................................................................................................... 23

1.3.5

Switching the Response Speed of the Photo-Receiver Circuit .............................................................................................. 24

1.4

Maintenance Recommended Display ...................................................................................................................25

1.5

Error Display ..................................................................................................................................................................26

2. Measurement Operation .................................................................................................................................. 27

2.1

Example of use .............................................................................................................................................................27

2.1.1

Measuring a Light Source Having Directivity ................................................................................................................................... 27

2.1.2

Measuring a Minute Surface .................................................................................................................................................................... 27

2.1.3

Using the Unit in a other device ............................................................................................................................................................ 28

2.1.4

Reducing instrumental error between a plurality of instruments ............................................................................................ 28

2.2

Absolute Value Measurement ................................................................................................................................33

2.3

Difference Measurement ..........................................................................................................................................34

2.4

Measuring the Light Source Color .......................................................................................................................35

2.5

Measuring the Object Color ....................................................................................................................................36

2.6

Measurement Value Display Mode .......................................................................................................................37

2.7

Using the Analog Output Connector ...................................................................................................................39

2.7.1

Relationship Between Analog Output Voltage and Luminance ................................................................................................ 39

2.7.2

Analog Output Response Speed ............................................................................................................................................................ 40

2.7.3

Usage ................................................................................................................................................................................................................. 40

3. Various Settings ................................................................................................................................................. 41

3.1

Function Mode ..............................................................................................................................................................41

3.1.1

Entering /Returning from the Function Mode ................................................................................................................................. 41