User Manual

ManualsBrandsDetcon ManualsEquipment1000_H2S

Model 1000 H2S Echem

Model 1000 H2S Echem Instruction Manual 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.....................................................................................................................9

3.4 Relays and RS-485 Setup............................................................................................................... 10

4. Start Up.............................................................................................................................................12

5. Operating Software...........................................................................................................................13

5.1 Programming Magnet Operating Instructions.................................................................................13

5.2 Operating Software........................................................................................................................ 13

5.2.1 Normal Operation.................................................................................................................. 13

5.2.2 Calibration Mode................................................................................................................... 14

5.2.3 Program Mode.......................................................................................................................14

5.2.4 Software Flow Chart.............................................................................................................. 16

6. Calibration and Maintenance...........................................................................................................16

6.1.1 Zero Calibration .................................................................................................................... 17

6.1.2 Span Calibration.................................................................................................................... 17

7. Programming Alarms....................................................................................................................... 19

7.1 Alarm Reset................................................................................................................................... 19

7.2 Other Alarm Functions ..................................................................................................................19

8. Programming Features.....................................................................................................................19

9. RS-485 Protocol ................................................................................................................................20

10. Display Contrast Adjustment........................................................................................................... 22

11. Low Flow Fault Options................................................................................................................... 22

12. Sensor Replacement..........................................................................................................................23

13. Troubleshooting................................................................................................................................23

14. Spare Parts........................................................................................................................................24

15. Warranty...........................................................................................................................................26

16. Flow Diagrams.................................................................................................................................. 27

17. Wiring Diagram................................................................................................................................29

Appendix C .................................................................................................................................................30

Revision Log ............................................................................................................................................30