GE Bently Nevada 1900/27 - Page 6

1900/27 Vibration Monitor Operation and Maintenance Manual
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3.4 Setpoint Adjustment ......................................................................................................................26
3.5 Resetting the Monitor.....................................................................................................................28
3.6 Buffered Transducer Output.......................................................................................................28
3.7 Initiating a Monitor Self Test........................................................................................................28
4. Maintenance & Troubleshooting ...............................................................29
4.1 General Maintenance....................................................................................................................29
4.2 Monitor Adjustments .....................................................................................................................30
4.2.1 LCD Zero Adjustment................................................................................................................30
4.2.2 Adjustment of the Monitor's 4 to 20 mA Current Loop Interface..........................32
4.3 Troubleshooting...............................................................................................................................35
5. Appendix A - Performance Specifications................................................38
5.1 1900/27 Monitor Specification..................................................................................................38
5.1.1 Mechanical Specifications......................................................................................................38
5.1.2 Environmental Specifications ...............................................................................................38
5.1.3 Monitor Power Specifications...............................................................................................40
5.1.4 Relay Specifications ..................................................................................................................40
5.1.5 Signal Conditioning....................................................................................................................40
5.1.6 Accuracy.........................................................................................................................................41
5.1.7 LED Indicators..............................................................................................................................41
5.1.8 Monitor Controls .........................................................................................................................42
5.1.9 4 to 20 mA Interface Specifications...................................................................................42
6. Appendix B - Peak Detection Methods .....................................................43
6.1 Peak Detector Theory.....................................................................................................................43
7. Appendix C - 1900/27 Monitor Configuration Form ...............................44
8. Appendix D - Accessories and Spare Parts..............................................46
8.1 Installation Hardware....................................................................................................................46
8.2 Spare Parts.........................................................................................................................................48
9. Appendix E - Hazardous Area Approvals .................................................49