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Summary of Contents for Emerson Rosemount 625IR
- Page 1 Quick Start Guide MS-00825-0100-3625, Rev AC March 2024 Rosemount 625IR Gas Detector ™ Hydrocarbon Gas Detection...
- Page 2 Please read the general warnings in the following chapters. WARNING The Rosemount 625IR Optical Gas Detector is certified for and intended for use in potentially hazardous areas. Install and use the gas detector in accordance with the appropriate local or national regulations.
- Page 3 March 2024 Quick Start Guide WARNING Physical access Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end users’ equipment. This could be intentional or unintentional and needs to be protected against. Physical security is an important part of any security program and fundamental in protecting your system.
- Page 4 Quick Start Guide March 2024 Emerson.com...
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Page 5: Device Overview
Quick Start Guide 1 Device overview The Rosemount 625IR gas detector is a fixed general purpose gas detector sensor. The 625IR is available as a standalone detector for open area applications, or with an extended gas sensing section for duct applications. -
Page 6: Installation
Electrical connections and earthing. 2.2 Preparations and positioning considerations The Rosemount 625IR is a point gas detector, and qualified personnel should carefully assess its chosen location. However, each installation is unique, and the operators must make detailed considerations Emerson.com... - Page 7 March 2024 Quick Start Guide locally in order to get the best coverage. Below are some general matters to consider. • Place the detector where maintenance, such as cleaning of optics, can be easily performed. • Take into account the relative weight of the target gas compared to air when deciding the optimum installation height.
- Page 8 Quick Start Guide March 2024 Figure 2-1: Impact of wind A. Leak point B. Detector out of range C. Detector in range D. Wind direction Emerson.com...
- Page 9 March 2024 Quick Start Guide 2.3 Mounting the detector Figure 2-2, the Rosemount 625IR is shown securely mounted. Figure 2-2: 625IR securely mounted Mount the detector with the longitudinal axis in the horizontal direction as illustrated in Figure 2-3. You can rotate it in any direction along this longitudinal axis.
- Page 10 B. Incorrect position Most often, operators mount the detector on the wall, but they can also mount it flat or in the roof as illustrated in Figure 2-4, Figure 2-5, Figure 2-6. Figure 2-4: Detector mounted on the wall Emerson.com...
- Page 11 March 2024 Quick Start Guide Figure 2-5: Detector mounted flat Figure 2-6: Detector mounted in roof Quick Start Guide...
- Page 12 Quick Start Guide March 2024 2.3.1 Pole mounting Figure 2-7 shows the Rosemount 625IR with the pole mount kit. A pole with a diameter of about 3 in. (60 mm) should be sufficient. Figure 2-7: Pole mount kit Emerson.com...
- Page 13 March 2024 Quick Start Guide 2.3.2 Mount to duct or pipe If you are installing the Rosemount 625IR in a ventilation duct or pipe, Emerson recommends using the mounting arrangement and accessories as shown in Figure 2-8. To get better gas coverage inside...
- Page 14 Quick Start Guide March 2024 2.3.3 Options for mounting Rosemount 625IR in ducts or pipes There are three possible configurations for mounting the duct flange: Figure 2-9: Rosemount 625IR mounted in the duct flange kit The operator can easily remove the detector from the duct to perform a gas test.
- Page 15 March 2024 Quick Start Guide Figure 2-11: 625IR Duct mounted in duct flange kit You can perform a gas test through the rigid gas pipe. It can be challenging to perform gas tests if there is air flow in the duct. Quick Start Guide...
- Page 16 Quick Start Guide March 2024 2.4 Electrical connections and earthing Connect the Rosemount 625IR chassis to local clean earth. Use one of the two external earthing points illustrated in Figure 2-12 using an earthing cable ring lug. Figure 2-12: Electrical connections and earthing A.
- Page 17 March 2024 Quick Start Guide (continued) Table 2-1: Terminal Specifications Terminal (detector Signal type Specification Cable requirement wire color) 3 (green) Analog safety signal Analog 0-20 mA section is 0.1 in. DC signal overlaid (2.5mm ) (stranded) with a HART signal. or 0.2 in.
- Page 18 20 minutes to warm up. 2.4.2 Performing loop test The Rosemount 625IR can perform a loop test through the HART ® or Modbus interface. The loop test allows you to manually set the ®...
- Page 19 For the fastest response time, use the 625IR without the environment shield. In most cases, Emerson recommends using the environment shield, since it makes the detector more robust against water and dirt. Even with the environment shield, the detector has a very fast response time.
- Page 20 Quick Start Guide March 2024 Figure 2-14: Detector with environment shield inserted Emerson.com...
- Page 21 Quick Start Guide 2.6 Sunshade The operator can fit the Rosemount 625IR with a sunshade, keeping it from being exposed to direct sunlight. The sunshade can also stop the accumulation of snow, sand, or other unwanted substances. The figures illustrate how to install the sunshade. Use the same screws as the detector to mount the sunshade.
- Page 22 The extra section of the sunshade in the sunshade kit can be used to give extra shielding in some applications, but is normally not used for horizontal mounting. For wall or pole mounting, Emerson recommends using the sunshade and extra section to shield the detector from direct sunlight, rain, and snow.
- Page 23 Figure 2-15: Mounting mosquito net A. Mosquito net B. Screw C. Gas nozzle Figure 2-16: Mosquito net installed on the Rosemount 625IR 2.8 Blocking kit Site maintenance, such as sand blasting and painting, might damage the detector. To protect the detector during such work, Emerson recommends using the blocking kit accessory.
- Page 24 Quick Start Guide March 2024 fits on the nose section and blocks the optics, forcing the detector into sending a signal. Fault Emerson.com...
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Page 25: Configuration
March 2024 Quick Start Guide 3 Configuration 3.1 Overview Note Unless otherwise specified, all sensor modules will leave the factory with default configuration options selected. The operator can change the options in the field using HART communication. ® 3.2 Configuration options You can configure settings with HART communication or AMS. -
Page 26: Product Certifications
A copy of the EC Declaration of Conformity can be found at the end of the Quick Start Guide. The most recent revision of the EC Declaration of Conformity can be found at Emerson.com/Rosemount. A.2 Ordinary location certification As standard, the device has been examined and tested to determine... - Page 27 March 2024 Quick Start Guide A.5 Canada A.5.1 E6 Explosion-proof Certificate FM23CA0067X Class I, Division 1, Groups B, C, and D, T5, Ta = -50 Markings °C to +75 °C 60079-29-1 Type 4X, IP66/67 Special Conditions for Safe Use (X): 1. Flameproof joints are not intended to be repaired. 2.
- Page 28 1. Flameproof joints are not intended to be repaired. 2. The measuring function of the EUT is not covered by this type examination. It shall comply with the requirements from the relevant harmonized standards which provide guidance on the performance of gas detection equipment and safety devices. Emerson.com...
- Page 29 March 2024 Quick Start Guide A.8 Declaration of Conformity Quick Start Guide...
- Page 30 Quick Start Guide March 2024 Emerson.com...
- Page 31 March 2024 Quick Start Guide Quick Start Guide...
- Page 32 2024 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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