Detcon 1000 - Manual (Page 3)

Mdl 1000 H2S E-Chem / Inst. Air
Model 1000 H2S E-Chem w Instrument Air iii
Table of Contents
1. Introduction.............................................................................................................................................. 1
1.1 DM-624 Sensor .................................................................................................................................... 1
1.2 Electrochemical Sensor ........................................................................................................................ 2
1.3 Microprocessor Control Circuit............................................................................................................ 2
1.4 Base Connector Board.......................................................................................................................... 3
1.5 Interference Data .................................................................................................................................. 4
1.6 Explosion Proof Enclosures ................................................................................................................. 4
2. Specifications............................................................................................................................................ 5
3. 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 ..................................................................................................................... 9
4. Start Up................................................................................................................................................... 11
5. Operating Software ............................................................................................................................... 12
5.1 Programming Magnet Operating Instructions .................................................................................... 12
5.2 Operating Software............................................................................................................................. 12
5.2.1 Normal Operation ...................................................................................................................... 12
5.2.2 Calibration Mode ....................................................................................................................... 13
5.2.3 Program Mode ........................................................................................................................... 13
5.2.4 Software Flow Chart .................................................................................................................. 14
6. Calibration and Maintenance ............................................................................................................... 15
6.1.1 Zero Calibration......................................................................................................................... 15
6.1.2 Span Calibration ........................................................................................................................ 15
7. Programming Alarms............................................................................................................................ 17
7.1 Alarm Reset........................................................................................................................................ 17
7.2 Other Alarm Functions....................................................................................................................... 17
8. Programming Features.......................................................................................................................... 18
9. RS-485 Protocol ..................................................................................................................................... 18
10. Display Contrast Adjustment ............................................................................................................... 21
11. Low Flow Fault Options........................................................................................................................ 21
12. Sensor Replacement............................................................................................................................... 21
13. Troubleshooting ..................................................................................................................................... 22
14. Spare Parts ............................................................................................................................................. 23
15. Warranty ................................................................................................................................................ 25
16. Flow Diagrams ....................................................................................................................................... 26
17. Wiring Diagram ..................................................................................................................................... 27
Appendix C ....................................................................................................................................................... 28
Revision Log .................................................................................................................................................. 28