Table Of Contents - Emerson Rosemount 975 Series Reference Manual

Reference Manual
00809-1400-4975
Contents
Chapter 1 Introduction.............................................................................................................. 7
1.1 Product overview.........................................................................................................................7
1.2 Models.........................................................................................................................................7
Chapter 2 Installation.................................................................................................................9
2.1 Installation guidelines.................................................................................................................. 9
2.2 Preparation for use...................................................................................................................... 9
2.3 Attach detector to tilt mount.....................................................................................................13
2.4 Open the back cover.................................................................................................................. 14
2.5 Wire terminals and ground cable............................................................................................... 15
2.6 Install the protective cover.........................................................................................................19
2.7 Aim the detector........................................................................................................................20
2.8 Changing default detector settings ........................................................................................... 21
Chapter 3 Operation................................................................................................................ 23
3.1 Power up the detector............................................................................................................... 23
3.2 Test flame detectors.................................................................................................................. 23
Chapter 4 Initial setup.............................................................................................................. 25
4.1 Continuous feature test............................................................................................................. 25
4.2 Response to fault indication.......................................................................................................25
4.3 Built-in test (BIT)........................................................................................................................ 25
Chapter 5 Maintenance............................................................................................................ 27
5.1 Keeping maintenance records................................................................................................... 27
5.2 Clean the detector..................................................................................................................... 27
Chapter 6 Troubleshooting...................................................................................................... 29
6.1 Light-emitting diode (LED) is off, fault relay is open, 0-20 mA shows 0 mA, analog voltage
output is 0 V................................................................................................................................29
6.2 Light-emitting diode (LED) flashes yellow at 4 Hz, fault relay is open, 0-20 mA shows 1 mA....... 29
6.3 Light-emitting diode (LED) flashes yellow at 4 Hz, relay is open, 0-20 mA shows 2 mA............... 29
6.4 Light-emitting diode (LED) constantly red, alarm relay energized, 0-20 mA indicates alarm.......30
6.5 No HART
Chapter 7 Specifications...........................................................................................................31
7.1 Technical specifications............................................................................................................. 31
7.2 Electrical specifications.............................................................................................................. 33
7.3 Mechanical specifications.......................................................................................................... 34
Appendix A Reference data......................................................................................................... 37
A.1 Ordering information, specifications, and dimensional drawings...............................................37
Rosemount 975
®
communication, 0-20 mA shows 0 mA......................................................................30
Contents
February 2022
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