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.................................................................................................................... 10
2.3 Attach detector to tilt mount.....................................................................................................10
2.4 Open the back cover.................................................................................................................. 11
2.5 Wire terminals and ground cable............................................................................................... 11
2.6 Install the protective cover.........................................................................................................15
2.7 Aim the detector........................................................................................................................16
2.8 Changing default detector settings ........................................................................................... 16
Chapter 3 Operation................................................................................................................ 17
3.1 Power up the detector............................................................................................................... 17
3.2 Test flame detectors.................................................................................................................. 17
Chapter 4 Initial setup.............................................................................................................. 19
4.1 Continuous feature test............................................................................................................. 19
4.2 Response to fault indication.......................................................................................................19
4.3 Built-in-test (BIT)........................................................................................................................19
Chapter 5 Maintenance............................................................................................................ 21
5.1 Keeping maintenance records................................................................................................... 21
5.2 Clean the detector..................................................................................................................... 21
Chapter 6 Troubleshooting...................................................................................................... 23
6.1 LED is off, fault relay is open, 0-20mA shows 0mA, analog voltage output is 0V......................... 23
6.2 LED flashes yellow at 4Hz, fault relay is open, 0-20mA shows 1mA.............................................23
6.3 LED flashes yellow at 4Hz, relay is open, 0-20mA shows 2mA.....................................................23
6.4 LED constantly red, alarm relay energized, 0-20mA indicates alarm...........................................24
6.5 No HART
Chapter 7 Specifications...........................................................................................................25
7.1 Technical specifications............................................................................................................. 25
7.2 Electrical specifications.............................................................................................................. 27
7.3 Mechanical specifications.......................................................................................................... 28
Appendix A Reference data......................................................................................................... 31
A.1 Ordering information, specifications, and dimensional drawings...............................................31
A.2 Product certifications and installation drawings.........................................................................31
Rosemount 975
®
communication, 0-20mA shows 0mA....................................................................... 24
Contents
June 2021
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