Easidew Plus Portable Hygrometer User’s Manual
Kahn Instruments
3
1 INTRODUCTION ................................................................................................1
2 INSTALLATION ..................................................................................................2
3 OPERATION ......................................................................................................4
3.1 General Operation .............................................................................................. 4
3.2 Measuring Dew Points Below -40°F (-40°C ) ......................................................... 5
3.3 User Controls ..................................................................................................... 6
3.4 4–20 mA Output Socket Wiring ............................................................................ 7
4 GOOD MEASUREMENT PRACTICE .......................................................................8
5 MAINTENANCE ................................................................................................12
5.1 Calibration ....................................................................................................... 12
5.2 Sensor / Battery Replacement ........................................................................... 12
5.3 Filter Cartridge Replacement ............................................................................. 14
5.4 Checking the Easidew Plus Portable Hygrometer Electronics Calibration ................ 14
5.5 List of Spares ................................................................................................... 14
5.6 Troubleshooting ................................................................................................ 15
Contents
Safety ................................................................................................................................ v
Electrical Safety ........................................................................................................... v
Pressure Safety ............................................................................................................ v
Toxic Materials ............................................................................................................. v
Repair and Maintenance ............................................................................................... v
Calibration ................................................................................................................... v
Abbreviations ......................................................................................................................vi
Warnings ............................................................................................................................vi
Appendices
Appendix A
Technical Specifications ..............................................................................17
Appendix B
EU Declaration of Conformity......................................................................19
Figures
Figure 1
Swagelok
®
Fitting Instructions .....................................................................3
Figure 1A
Adaptor Fittings ..........................................................................................4
Figure 2
User Controls .............................................................................................6
Figure 3
Jack Plug Wiring .........................................................................................7
Figure 4
2-Wire Connection - View Showing Rear of Connector Terminal Block ...........14
