Emerson Rosemount 965 Quick Start Manual
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Emerson Rosemount 965 Quick Start Manual

Emerson Rosemount 965 Quick Start Manual

Flame detector
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Quick Start Guide
For Additional Product Information:
MS-00825-0100-4965, Rev AC
March 2025
If QR code is not affixed
here, product documents can
be located by entering your
product's S/N into the search
tool (magnifier icon) at the
top of the webpage found at
www.emerson.com
Rosemount
™
965 Flame Detector

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Summary of Contents for Emerson Rosemount 965

  • Page 1 MS-00825-0100-4965, Rev AC March 2025 If QR code is not affixed here, product documents can be located by entering your product's S/N into the search tool (magnifier icon) at the top of the webpage found at www.emerson.com Rosemount ™ 965 Flame Detector...

  • Page 2: Installation

    Only access the wiring compartment to wire or remove the detector or access RS-485 terminals for maintenance. 2 Introduction The Rosemount 965 detects hydrocarbon fires at up to 150 ft. (45 m) with unparalleled reliability. The 965 is based on QuadSense triple-infrared (IR3) technology, ensuring high sensitivity and ™...

  • Page 3: Preparation For Use

    Preparation for use The installation sequence may vary according to the physical structure of the site. The following tools are required for installation: Note These are standard tools. Emerson does not supply them with the detector. Table 3-1: Required Tools Tool Function...

  • Page 4: Tilt Mount

    3.3  Tilt mount Figure 3-1: Tilt Mount A. Clamp locking screw B. Horizontal/vertical locking screw C. Rotating clamp D. Tilt holding plate Figure 3-2: Tilt Mount Photo...
  • Page 5 Figure 3-3: Tilt Mount Dimensions Dimensions are in millimeters. Procedure 1. Unpack the detector. Emerson provides a plastic protection plug with the detector. See Figure 3-4. Figure 3-4: Detector with a Plastic Protection Plug Note The tilt mount features a single X/Y rotation axis. Consider the desired position of the tilt...
  • Page 6 2. Use the 5 mm hex key to release the captive screw that locks the clamp. A. Clamp locking screw B. Rotating clamp C. Horizontal/vertical locking screw D. Detector conduit 3. Place the detector conduit within the clamp. Note To change the detector field of view, release the horizontal/vertical locking screw. 4.

  • Page 7: Wiring Preparation

    3.4  Wiring preparation Procedure 1. Use a Phillips head screwdriver (see following image) to unfasten the locking screw (A) on the back cover. A. Back cover security screw B. Protective plug 2. Unscrew and remove the back cover to access the terminal compartment. 3.
  • Page 8 3.5  Wire the terminals and ground cable Procedure 1. Connect the terminals according to Table 3-2. The terminal details also appear on the inside of the detector. Figure 3-5: Terminals Table 3-2: Terminal Box Terminal Function 24 Vdc (+) 24 Vdc (-) RS-485A+ RS-485B- Alarm relay - common (COM)
  • Page 9 Figure 3-7: Connector 2 Table 3-3: Signal VIN_PWR GND_PWR (Ground power) 4-20 (-) Fault Relay COM (common) Fault Relay NO (normally open) Alarm Relay COM Alarm Relay NO RS-485 (-) RS-485 (+) Shield Figure 3-8 Figure 3-9 for typical wiring configurations.
  • Page 10 Figure 3-8: Typical Wiring Configuration for Four-Wire Controllers A. Controller B. First detector C. Second detector D. Last detector E. Power supply F. Alarm loop G. End of line Figure 3-9: Source Three-Wire A. Detector B. Controller C. Input power: 18-32 Vdc D.

  • Page 11: Electrical Specifications

    4. Use the Phillips screwdriver to screw the back cover security screw to fix the back cover. Figure 3-10: Security Screw A. Back cover security screw. 5. Connect the ground cable. Figure 3-11: Ground Cable Connection F. Ground cable connection point 3.6 ...
  • Page 12 Table 4-2: Outputs Relays Fault - normally closed (NC) Alarm - normally open (NO) SPST volt-free contacts rated 2 A at 30 Vdc 0-20 mA (stepped) default Fault: < 1.1 mA Built-in test (BIT) fault: 2 mA ± 3 mA Normal: 4 mA ±...
  • Page 16 2025 Emerson. All rights reserved. Emerson Terms and Conditions of Sale are available upon request. The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson family of companies. All other marks are the property of their respective owners.

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