Emerson Rosemount 781S Quick Start Manual
Wireless smart antenna
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- Quick start manual (24 pages)
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Summary of Contents for Emerson Rosemount 781S
- Page 1 Quick Start Guide 00825-0700-4410, Rev AG September 2024 Emerson Wireless 781S Smart Antenna...
- Page 2 September 2024 Safety messages NOTICE This guide provides basic guidelines for the Emerson Wireless 781S Smart Antenna. It does not provide instructions for diagnostics, maintenance, service, or troubleshooting. Refer to Emerson Wireless 1410S Gateway and 781S Smart Antenna Reference Manual for more information and instructions.
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Page 3: Table Of Contents
September 2024 Quick Start Guide Contents Wireless planning.........................5 Intended use..........................7 Best practices..........................8 Physical installation........................9 Legacy 781S installation......................13 Verify operation..........................16 Product certifications........................ 17 www.Emerson.com... - Page 4 Quick Start Guide September 2024 www.Emerson.com...
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Page 5: Wireless Planning
WirelessHART. 1.1 Power up sequence For a simpler and faster network installation, first install the Emerson Wireless Smart Antenna and wireless inputs and outputs and make sure they are functioning properly. Next, power up wireless field devices in order of proximity from the antenna, beginning with the closest. -
Page 6: Antenna Position
Quick Start Guide September 2024 1.3 Antenna position Position the Emerson 781S Smart Antenna vertically and approximately 3 ft. (1 m) from large structures, buildings, or conductive surfaces to allow for clear communication to other devices. If installing multiple antennas, it is important that the antennas have 3 ft. -
Page 7: Intended Use
Intended use 2.1 System architecture The 781S Smart Antenna was designed for use with the Emerson 1410S Gateway and should only be connected to the Emerson 1410S and/or other Emerson Gateway products. The 1410S Gateway provides the network manager for the WirelessHART devices or ®... -
Page 8: Best Practices
• Total capacitance and inductance must match product certification entity parameters for proper installation. Reference certificate ordered and Emerson installation drawing 01410-1300 for specific entity parameters. 3.2 Electrical surge In installations with extreme electrical noise or significant historical electrical noise, consider using lightning and/or surge arrestors within the installation between the 1410S and 781S. -
Page 9: Physical Installation
Figure 4-1: Mounting 4.2 Connect to power and data The Emerson 781S has a terminal block in lower housing of the antenna. Remove the lower housing to expose the terminals for connecting the cable between the 781S and 1410S. Use industrial grade cable suitable for hazardous environments such as Belden ™... - Page 10 If using conduit, mount the 781S first before attaching the conduit. Use wrench flats on the 781S lower housing collar when torquing the cable gland or conduit. Do not apply excessive force to any other part of the 781S. www.Emerson.com...
- Page 11 (Data A and Data B) are on the left side of the terminal block. Connecting these terminals to anything other than the corresponding data terminals of the 1410S or 1410D Gateway may damage the 781S Smart Antenna. Figure 4-2: 781S lower housing wrench flats identifier www.Emerson.com...
- Page 12 D. 1410S RS-485 comm output E. 781S RS-485 comm input F. 781S power input For specific requirements on installing in hazardous rated areas, refer to Emerson drawing 01410-1300. RS-485 communication terminals must never be connected directly to a power supply. See warning above. www.Emerson.com...
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Page 13: Legacy 781S Installation
2. Use a ½-in. socket-head wrench to fasten the nuts to the U- bolt. 3. Secure the antenna to the L-shaped bracket with a 5/16-in. threaded bolt. 4. Use a 5/16-in. wrench to tighten the screw into the housing. www.Emerson.com... - Page 14 September 2024 Figure 5-2: Mounting 5.3 Connect to power and data The legacy Emerson 781S is completely prewired and only needs to be connected and powered on the Gateway end. The housing is permanently sealed on the legacy Emerson 781S. Prerequisites If operating with more than one antenna, it is important the antenna is always connected to the antenna terminal connection 1 port.
- Page 15 September 2024 Quick Start Guide Blk (Black) Negative Wht (White) RS-485 comm A Blu (Blue) RS-485 comm B Figure 5-4: Emerson Wireless 781S A. Power output B. RS-485 comm www.Emerson.com...
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Page 16: Verify Operation
Gateway, you must verify its operation through the Gateway. 6.2 Power up sequence The second and third LEDs in the Emerson 1410S correlate to the first and second terminal connections. These lights should be green when the antenna is connected properly. 6.3 ... -
Page 17: Product Certifications
Changes or modification to the equipment not expressly approved by Emerson could void the user's authority to operate the equipment. Cet appareil est conforme à la Partie 15 de la réglementation FCC. -
Page 18: Ordinary Location Certification
2. Cet appareil doit accepter toute interférence, y compris les interférences pouvant causer un mauvais fonctionnement du dispositif. Les changements ou les modifications apportés à l'équipement qui n'est pas expressément approuvé par Emerson pourraient annuler l'autorité de l'utilisateur à utiliser cet équipement. 7.4 Ordinary location certification... - Page 19 5. The aluminum antenna adapter on the enclosure may be capable of producing incendive sparks when impacted. This equipment must be mounted and/or physically guarded such that it is not subjected to impact or friction. www.Emerson.com...
- Page 20 3. The measured capacitance between the equipment enclosure and metallic conduit adapter is 21pF. This must be considered only when the Model 781S is integrated into a system where the process connection is not grounded. www.Emerson.com...
- Page 21 Ex ia IIC T4 Ga (–40 °C ≤ T ≤ +70 °C), Ex ic IIC T4 Gc (–40 Markings °C ≤ T ≤ +70 °C) ABNT NBR IEC 60079-0: 2013, ABNT NBR IEC 60079-11: Standards 2013 Special Conditions for Safe Use (X) See certificate. www.Emerson.com...
- Page 22 IP KTL Intrinsic Safety 21-KA4BO-0489X Certificate Ex ia IIC T4 Ga (–40 °C ≤ T ≤ +70 °C) Markings 21-KA4BO-0490X Certificate Ex ic IIC T4 Gc (–40 °C ≤ T ≤ +70 °C) Markings Special Conditions for Safe Use (X) See certificate. www.Emerson.com...
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Page 23: Declaration Of Conformity
September 2024 Quick Start Guide 7.15 Combinations Combination of I1, I5, and I6 Combination of I1, I5, I6, and I7 7.16 Declaration of Conformity Emerson Wireless 781SA Smart Antenna www.Emerson.com... - Page 24 Quick Start Guide September 2024 Emerson Wireless 781SC Smart Antenna www.Emerson.com...
- Page 25 September 2024 Quick Start Guide 7.17 China RoHS table www.Emerson.com...
- Page 26 Quick Start Guide September 2024 www.Emerson.com...
- Page 27 September 2024 Quick Start Guide www.Emerson.com...
- Page 28 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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