EMERSON 975 Air Shield Installation Guide
- June 4, 2024
- Emerson
Table of Contents
00809-0700-4975
Rev AA
975 Air Shield
Installation Instructions
975 Air Shield
Legal Notice
The Flame Detector described in this document is the property of Rosemount.
No part of the hardware, software, or documentation may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means, without prior
written permission of Rosemount.
While great efforts have been made to ensure the accuracy and clarity of this
document, Rosemount assumes no liability resulting from any omissions in this
document or from misuse of the information obtained herein. The information in
this document has been carefully checked and is believed to be entirely
reliable with all of the necessary information included. Rosemount reserves
the right to make changes to any products described herein to improve
reliability, function, or design and reserves the right to revise this
document and make changes from time to time in content hereof with no
obligation to notify any persons of revisions or changes. Rosemount does not
assume any liability arising out of the application or any use of any product
or circuit described herein; neither does it convey a license under its patent
rights or the rights of others.
WARNING!
This manual should be read carefully by all individuals who have or will have
responsibility for using, maintaining, or servicing the product.
The Detector is not field repairable due to the meticulous alignment and
calibration of the sensors and the respective circuits. Do not attempt to
modify or repair the internal circuits or change their settings, as this will
impair the system’s performance and void the Rosemount product warranty.
Warranty
- Limited Warranty. Subject to the limitations contained in Section 10 (Limitation of Remedy and Liability) herein, Seller warrants that (a) the licensed firmware embodied in the Goods will execute the programming instructions provided by Seller; (b) that the Goods manufactured by Seller will be free from defects in materials or workmanship under normal use and care; and (c) Services will be performed by trained personnel using proper equipment and instrumentation for the particular Service provided. The foregoing warranties will apply until the expiration of the applicable warranty period. Sensors and detectors are warranted against defective parts and workmanship for 24 months from the date of purchase and other electronic assemblies for 36 months from the date of purchase. Products purchased by Seller from a third party for resale to Buyer (Resale Products) shall carry only the warranty extended by the original manufacturer. Buyer agrees that Seller has no liability for Resale Products beyond making a reasonable commercial effort to arrange for procurement and shipping of the Resale Products. If Buyer discovers any warranty defects and notifies Seller thereof in writing during the applicable warranty period, Seller shall, at its option, (i) correct any errors that are found by Seller in the firmware or Services; (ii) repair or replace FOB point of manufacture that portion of the Goods found by Seller to be defective; or (iii) refund the purchase price of the defective portion of the Goods/Services. All replacements or repairs necessitated by inadequate maintenance; normal wear and usage; unsuitable power sources or environmental conditions; accident; misuse; improper installation; modification; repair; use of unauthorized replacement parts; storage or handling; or any other cause not the fault of Seller, are not covered by this limited warranty and shall be replaced or repaired at Buyer’s sole expense and Seller shall not be obligated to pay any costs or charges incurred by Buyer or any other party except as may be agreed upon in writing in advance by Seller. All costs of dismantling, reinstallation, freight, and the time and expenses of Seller’s personnel and representatives for site travel and diagnosis under this limited warranty clause shall be borne by Buyer unless accepted in writing by Seller. Goods repaired and parts replaced by Seller during the warranty period shall be in warranty for the remainder of the original warranty period or 90 days, whichever is longer. This limited warranty is the only warranty made by Seller and can be amended only in a writing signed by an authorized representative of Seller. The limited warranty herein ceases to be effective if Buyer fails to operate and use the Goods sold hereunder in a safe and reasonable manner and in accordance with any written instructions from the manufacturers. THE WARRANTIES AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE. THERE ARE NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR SERVICES.
- Limitation of Remedy and Liability SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY DELAY IN PERFORMANCE. THE REMEDIES OF THE BUYER SET FORTH IN THE AGREEMENT ARE EXCLUSIVE. IN NO EVENT, REGARDLESS OF THE FORM OF THE CLAIM OR CAUSE OF ACTION (WHETHER BASED ON CONTRACT, INFRINGEMENT, NEGLIGENCE, STRICT LIABILITY, OR OTHER TORT OR OTHERWISE), SHALL THE SELLER’S LIABILITY TO THE BUYER AND/OR BUYER’S CUSTOMERS EXCEED THE PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED OR SERVICES PROVIDED BY THE SELLER GIVING RISE TO THE CLAIM OR CAUSE OF ACTION. BUYER AGREES THAT IN NO EVENT SHALL SELLER’S LIABILITY TO BUYER AND/OR BUYER’S CUSTOMERS EXTEND TO INCLUDE INCIDENTAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES. THE TERM “CONSEQUENTIAL DAMAGES” SHALL INCLUDE, BUT NOT BE LIMITED TO, LOSS OF ANTICIPATED PROFITS, REVENUE OR USE, AND COSTS INCURRED INCLUDING WITHOUT LIMITATION FOR CAPITAL, FUEL, AND POWER, AND CLAIMS OF BUYER’S CUSTOMERS.
General Description
This document describes the installation instructions for the Air Shield P/N:
00975-9000-0005.
The Air Shield is suitable for use with the Rosemount 975 Flame Detectors
(975MR, 975HR, 975UF, and 975UR) for both the aluminum and stainless steel
enclosures.
Optical flame detectors are often used in highly polluted or dirty areas that
force maintenance personnel to access the detector frequently to clean its
optical window. The special Air Shield, developed for Rosemount 975 Flame
Detectors, allows their installation under tough environmental conditions,
where they may be exposed to oil vapors, sand, dust, and other particulate
matter.
Installation Instructions
-
Surface preparation (Figure 2-1)
a. Verify that all connection surfaces (A) are clean.
b. Verify that the lock screw (B) is open. The screw is a captive screw.
Figure 2-1: Surface preparation
A. Connection surfaces
B. Lock screw -
Assembly of the Air Shield
a. Refers to Figure 2-2. Assemble the Air Shield (A) on the detector (B).
Figure 2-2: Assembly of the Air Shield, rear view
A. Air Shield
B. Detector
C. Groove -
Refer to Figure 2-2 and Figure 2-3. Verify that the guard (A in Figure 2-3) fits the appropriate groove (C in Figure 2-2).
Figure 2-3: Assembly of the Air Shield, front view
A. Guard
c. Refer to Figure 2-4. Lock the screw (A).
Figure 2-4: Locking the screw
A. Screw
The air shield is now mounted.
d. Refer to Figure 2-5. Attach the air pressure hose to the quick-fit air connection (A).
Figure 2-5: Quick fit air connection
A. Quick fit air connection
Technical Specifications
Air pressure source: Clean, dry, and oil-free air
Pressure: 2-3 bar(30-45 psi)
Fitting: 7/16 in. – 20 UNF-2A
Operation temperature: -67 °F to 185 °F (-55 °C to 85 °C)
WARNING!
The temperature of the air supply to the Air Shield should never exceed 140 °F
(60 °C).
Filter Replacement
-
Remove the six rear screws (Item A – M4 x 10 A4) and open the Air Shield
Figure 4-1: Filter Replacement
A. Six rear screws
B. Larger gasket
C. Filter
D. Smaller gasket -
Remove the larger gasket (Item B) and then remove the filter (Item C).
-
Remove the smaller gasket (Item D) and replace it with a new one.
-
Mount the new filter into the Air Shield.
-
Fit the new larger gasket (Item B).
-
Close the Air Shield and lock the screws (Item A).
Technical Support
For all technical assistance or support contact:
Emerson Process Management
6021 Innovation Boulevard
Shakopee, MN 55379-9795
The U.S.A.
T +1 866 347 3427
F +952 949 7001
SAFETY.CSC@Emerson.com
www.EmersonProcess.com/FlameGasDetection
Rosemount
6021 Innovation Blvd.
Shakopee, MN 55379
Toll Free + 866 347 3427
F +1 952 949 7001
safety.csc@emerson.com
www.EmersonProcess.com/FlameGasDetection
EUROPE
Emerson Process Management
Neuhofstrasse 19a P.O. Box 1046
CH-6340 Baar
Switzerland
T + 41 (0) 41 768 6111
F + 41 (0) 41 768 6300
safety.csc@emerson.com
www.EmersonProcess.com/FlameGasDetection
MIDDLE EAST AND AFRICA
Emerson Process Management
Emerson FZE
Jebel Ali Free Zone
Dubai, United Arab Emirates, P.O. Box 17033
T +971 4 811 8100
F +971 4 886 5465
safety.csc@emerson.com
www.EmersonProcess.com/FlameGasDetection
ASIA-PACIFIC
Emerson Process Management
Asia Pacific Private Limited
1 Pandan Crescent
Singapore 128461
Singapore
T +65 777 8211
F +65 777 0947
safety.csc@emerson.com
www.EmersonProcess.com/FlameGasDetection
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while effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the
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are governed by our terms and conditions, which are available on request. We
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products at any time without notice.
ROSEMOUNT
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