Detcon 1000_CO2 - Manual (Page 3)

Model 1000 CO2
Model 1000 CO2 Instruction Manual iii
Table of Contents
1.0 Introduction.............................................................................................................................................. 1
1.1 IR-640/IR-642 Description................................................................................................................... 1
1.1.1 Non-dispersive infrared (NDIR) optical sensor ........................................................................... 2
1.1.2 Microprocessor Control Circuit................................................................................................... 2
1.1.3 Base Connector Board ................................................................................................................. 3
1.1.4 IR-640/IR-642 CO
2
Sensor Principal of Operation ..................................................................... 3
1.1.5 Characteristics ............................................................................................................................. 4
1.2 Explosion Proof Enclosures ................................................................................................................. 4
2.0 Specifications............................................................................................................................................ 5
3.0 Installation................................................................................................................................................ 6
3.1 Mounting .............................................................................................................................................. 6
3.2 Gas Connections and Sampling System Notes..................................................................................... 6
3.3 Electrical Connections.......................................................................................................................... 7
3.4 Relays and RS-485 Setup ..................................................................................................................... 8
4.0 Start Up................................................................................................................................................... 10
5.0 Operating Software ............................................................................................................................... 11
5.1 Programming Magnet Operating Instructions .................................................................................... 11
5.2 Operating Software............................................................................................................................. 11
5.2.1 Normal Operation ...................................................................................................................... 12
5.2.2 Calibration Mode ....................................................................................................................... 12
5.2.3 Program Mode ........................................................................................................................... 12
5.2.4 Software Flow Chart .................................................................................................................. 14
6.0 Calibration.............................................................................................................................................. 15
6.1 IR-640/IR-642 CO
2
Sensor Calibration.............................................................................................. 15
7.0 Programming Sensors ........................................................................................................................... 17
7.1 Alarm Levels ...................................................................................................................................... 17
7.2 Alarm Reset........................................................................................................................................ 17
7.3 Other Alarm Functions ....................................................................................................................... 17
7.4 Calibration Gas Level......................................................................................................................... 18
8.0 Display Contrast Adjustment ............................................................................................................... 18
9.0 Programming Features.......................................................................................................................... 18
10.0 RS-485 Protocol ..................................................................................................................................... 19
11.0 Sensor Replacement............................................................................................................................... 21
12.0 Troubleshooting ..................................................................................................................................... 22
13.0 Spare Parts ............................................................................................................................................. 23
14.0 Warranty ................................................................................................................................................ 24
15.0 Gas Flow and Wiring Diagrams ........................................................................................................... 25
Appendix C ....................................................................................................................................................... 28
Revision Log .................................................................................................................................................. 28