Emerson Rosemount FS-HR-975, Reference Manual

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1 Introduction
To comply with local standards and jurisdictional authorities, perform end-to-end loop
testing of fire protection alarm systems, including detectors, periodically. Many safety
authorities and plant managers of high value/high risk assets and facilities insist on
quarterly end-to-end testing of their entire fire protection systems using an external flame
simulator.
Rosemount Flame Simulators emit electromagnetic radiation in a unique sequential
pattern corresponding to and recognizable as fire by the specific Rosemount 975 Flame
Detector. This allows the detector to be tested under real fire conditions without the
associated risk of an open flame.
Rosemount Flame Simulators are ATEX certified EExd for use in Zone 1, Zone 2, Zone 21,
and Zone 22 hazardous areas and are powered by rechargeable lithium ion batteries.
When fully charged, the Flame Simulator will operate for at least 1,000 tests without
recharging.
The Rosemount Flame Simulator is the only non-hazardous and safe method to test the
flame detector's sensors, internal electronics, alarm activation software, cleanliness of the
viewing window/lens, wiring integrity, actual relay activation, and proper functionality of
any other outputs used (mA, RS-485, or HART
® ).
1.1 Flame simulator compatibility with flame
detector models
The Rosemount FS-HR-975 Flame Simulator is compatible with the following:
Table 1-1: Flame simulator compatibility
Simulator Part number Compatible with
Multi-spectrum infrared hydrogen flame
simulator FS-HR-975 Rosemount 975HR
1.2 Features and benefits
• Used for maintenance and testing of flame detectors.
• Can activate the flame detector from a distance of 39.4 ft (12 m).
• Includes rechargeable battery.
• Operates at least 1,000 tests before the battery must be recharged.
1.3 Principles of operation
The Rosemount FS-HR-975 emits infrared energy, which is filtered to emit
electromagnetic radiation in unique sequential patterns, corresponding to and
recognizable as fire by the Rosemount 975HR Flame Detector.
Reference Manual Introduction
00809-0900-4975 May 2022
Rosemount FS-HR-975 7