CONTENTS
HOW TO USE THIS MANUAL iii
1.0 General Description & Features 1
1.1 Description 1
1.2 Main Features 1
1.2.1 Dewpoint Meter Features 1
1.2.2 Sensor Features 1
2.0 Installation Instructions 2
2.1 Safety Information 2
2.1.1 Warning 2
2.1.2 Isolation 2
2.2 Unpacking your dewTEC DS2000 Dewpoint Meter and Sensor 2
2.3 Sensor Care 2
2.4 Installing the air/gas sampling system 3
2.5 Installing and commissioning the sensor 5
2.6 Installing your dewTEC DS2000 Hygrometer 6
2.6.1 Panel mounting cut out 6
2.6.2 Panel mounting 6
2.7 Electrical interface connections 6
2.7.1 Mains (line) supply 7
2.7.2 Sensor Connection 7
2.7.3 Alarm Relay Outputs 7
2.7.4 Linear (Analogue re-transmission) Output 7
2.7.5 Alarm Transistor Open Collector Outputs 7
2.7.6 Serial Communications Output 8
2.7.7 External Autocal Control 8
3.0 Operating Instructions 9
3.1 Start Up 9
3.2 Front Panel Display and Keys 9
3.3 Viewing Operating Mode Parameters 10
3.4 Setting the Alarms and hysterisis 11
3.5 Hysterisis Operation 12
3.6 Resetting a latched Alarm 12
4.0 Hygrometer Settings 13
4.1 Sensor Calibration (AUTOCAL) 13
4.2 Programmed Settings 14
4.2.1 Program Mode 14
4.2.2 Configuration Mode 16
5.0 Serial Communications 18
5.1 Data Format/Baud Rate 18
5.2 Protocol 18
5.3 Message Format 18
5.3.1 Message Form 1 18
5.3.2 Message Form 2 19
5.4 Error Conditions 19
6.0 Maintenance and Troubleshooting 20
6.1 Maintenance 20
6.2 Problem Guide 20
Appendices 22
Appendix A – Product Specification 22
Appendix B – General Arrangement 23
Document No. 1125 Issue 2 04/02/04
dewTEC DS2000 User’s Manual Page v
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