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<Contents>
1 Product Functions ................................................................................................ 5
1-1. Outline drawing of the gas monitor ...................................................................... 5
1-2. Accessories .......................................................................................................... 6
1-3. Block diagram ...................................................................................................... 7
1-4. Descriptions of the LCD display........................................................................... 8
2 How to Install Gas Monitor................................................................................... 9
2-1. Precautions on installation site ............................................................................ 9
2-2. Installation and precautions ................................................................................. 10
3 How to Connect Wire ........................................................................................... 12
3-1. Descriptions of the terminal plate and how to connect the wire .......................... 12
3-2. Precautions on electrical work ............................................................................. 13
3-3. Protective grounding ............................................................................................ 14
4 How to Tube......................................................................................................... 15
5 How to Operate.................................................................................................... 17
5-1. How to start the gas monitor ................................................................................ 17
5-2. How to perform zero adjustment.......................................................................... 17
5-3. Alarm activation.................................................................................................... 18
5-4. How to check alarm setpoint................................................................................ 18
5-5. Caution for sensor deterioration........................................................................... 19
5-6. Error display and remedial actions....................................................................... 19
5-7. Gas alarm pattern (H-HH alarm).......................................................................... 20
5-8. Trouble alarm pattern........................................................................................... 20
6 How to Operate in Maintenance Mode ................................................................ 21
6-1. Overview of maintenance mode and each menu ................................................ 21
6-2. Displaying contrast of the interferometric sensor................................................. 22
6-3. Displaying light volume of the interferometric sensor .......................................... 22
6-4. Adjusting 4-20 mA external output ....................................................................... 23
6-5. Adjusting sensor sensitivity (span)....................................................................... 23
6-6. Setting alarm setpoint .......................................................................................... 24
6-7. Conducting alarm activation test.......................................................................... 25
6-8. Setting AUTO REF CAL CYCLE .......................................................................... 26
6-9. Displaying ROM number...................................................................................... 26
6-10. Displaying specification number ........................................................................ 26
6-11. Displaying pressure/temperature at sensor part ................................................ 26
7 Maintenance ........................................................................................................ 27
7-1. Maintenance intervals and items ......................................................................... 27
7-2. How to replace the fuse ....................................................................................... 28
7-3. Procedures to store the gas monitor or leave it for a long time ........................... 28
7-4. List of recommended regular replacement parts ................................................. 29
8 Troubleshooting ................................................................................................... 30
9 How to exit ........................................................................................................... 31
10 Definition of Terms ............................................................................................... 32
11 Disposal of Product.............................................................................................. 33
12 Product Specifications ......................................................................................... 34
12-1. Standard specifications...................................................................................... 34
12-2. Standard accessories ........................................................................................ 35
12-3. Measuring principle............................................................................................ 36