Net Safety Monitoring SC311 Operating Manual

Reference Manual

Part Number: MAN-0091, rev. 8

Release: June 2016

SC311 Infrared Combustible Gas Sensor

Important Instructions

Net Safety Monitoring, Inc (Net Safety) designs, manufactures and tests products to function within specific conditions. Because these products are sophisticated technical instruments, it is important that the owner and operation personnel must strictly adhere both to the information printed on the product nameplate and to all instructions provided in this manual prior to installation, operation, and maintenance.

Installing, operating or maintaining a Net Safety Product improperly could lead to serious injury or death from explosion or exposure to dangerous substances. Comply with all information on the product, in this manual, and in any local and national codes that apply to the product. Do not allow untrained personnel to work with this product. Use Net Safety parts and work procedures specified in this manual.

Notice

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability.

All sales are governed by Net Safety’s terms and conditions, which are available upon request. We

reserve the right to modify or improve the designs or specifications of such products at any time.

Net Safety does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Net Safety products remains solely with the purchaser and end user.

To the best of Net Safety’s knowledge the information herein is complete and accurate. Net Safety

makes no warranties, expressed or implied, including implied warranties of merchantability and fitness for a particular purpose with respect to this manual and, in no event, shall Net Safety be liable for any incidental, punitive, special or consequential damages including, but not limited to, loss of production, loss of profits, loss of revenue or use and costs incurred including without limitation for capital, fuel and power, and claims of third parties.

Product names used herein are for manufacturer or supplier identification only and may be trademarks/registered trademarks of these companies.

Net Safety and the Net Safety logo are registered trademarks of Net Safety Monitoring, Inc. The Emerson logo is a trademark and service mark of the Emerson Electric Company.

All rights reserved. No part of this work may be reproduced or copied in any form or by any means - graphic, electronic, or mechanical without first receiving written permission of Rosemount, Shakopee, MN.

Warranty

1. 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 as per Section 7.4. 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 PARTICULAR PURPOSE OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR SERVICES.

2. Limitation of Remedy and Liability. SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY

DELAY IN PERFORMANCE. THE REMEDIES OF BUYER SET FORTH IN THE AGREEMENT ARE EXCLUSIVE. IN NO EVENT, REGARDLESS OF THE FORM OF THE CLAIM OR CAUSE OF ACTION (WHETHER BASED IN CONTRACT, INFRINGEMENT, NEGLIGENCE, STRICT LIABILITY, OTHER

TORT OR OTHERWISE), SHALL SELLER’S LIABILITY TO BUYER AND/OR BUYER’S CUSTOMERS

EXCEED THE PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED OR SERVICES PROVIDED BY 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.

Reference Manual Table of Contents

MAN-0091, Revision 8 June 2016

Table of Contents i

Contents

Section 1: Introduction ...................................................................... 1

1.1 Models covered ................................................................................................................... 1

1.2 Service support ................................................................................................................... 1

1.3 Return of material ............................................................................................................... 1

1.4 Product recycling/disposal .................................................................................................. 1

Section 2: Installation ........................................................................ 2

2.1 Unpacking and inspection ................................................................................................... 2

2.2 Locate sensor ...................................................................................................................... 2

2.3 Direct mount or sensor separation ...................................................................................... 2

2.3.1 Sensor direct mount ............................................................................................. 2

2.3.2 Sensor separation ................................................................................................. 2

2.4 Dimensions ......................................................................................................................... 4

2.5 Mounting ............................................................................................................................ 5

2.6 Wiring ................................................................................................................................. 6

2.6.1 Field installation .................................................................................................... 6

2.6.2 Sensor separation distance ................................................................................... 7

2.6.3 Installation to transmitter or junction box ............................................................. 7

2.6.4 Sensor wiring ........................................................................................................ 7

2.6.5 External ground .................................................................................................... 8

2.7 Calibration .......................................................................................................................... 9

2.7.1 Gas curves ............................................................................................................ 9

2.8 Installation checklist .......................................................................................................... 11

Section 3: Operation ........................................................................ 12

3.1 Sensor configuration settings ............................................................................................ 12

3.2 Sensor power up ............................................................................................................... 12

3.3 Sensor communication ..................................................................................................... 12

3.4 Millennium II Basic transmitter configuration .................................................................... 13

3.5 Fault conditions ................................................................................................................ 13

Section 4: Maintenance ................................................................... 14

4.1 Cross sensitivities .............................................................................................................. 14

4.2 Routine inspections ........................................................................................................... 14

4.3 Bump testing .................................................................................................................... 14

4.4 Sensor replacement procedure ......................................................................................... 14

4.5 Troubleshooting ............................................................................................................... 15

4.6 Storage ............................................................................................................................. 15

4.7 Spare parts and accessories ............................................................................................... 16

Section 5: Electrostatic sensitive device ........................................... 17

Section 6: Wire resistance table ....................................................... 18

Section 7: Specifications .................................................................. 19

7.1 Electrical ........................................................................................................................... 19

7.1.1 Voltage range ..................................................................................................... 19

7.2 Performance ..................................................................................................................... 19

7.2.1 Response time .................................................................................................... 19

7.2.2 Accuracy ............................................................................................................. 19

7.2.3 Zero Drift ............................................................................................................ 19

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June 2016 MAN-0091, Revision 8

II Table of Contents

7.2.4 Repeatability ...................................................................................................... 19

7.2.5 Detection Range ................................................................................................. 19

7.2.6 Calibration Frequency ......................................................................................... 19

7.2.7 Storage temperature .......................................................................................... 19

7.2.8 Operating temperature ...................................................................................... 19

7.2.9 Relative humidity ................................................................................................ 20

7.2.10 Enclosure material (housing) ............................................................................ 20

7.2.11 Ingress protection ............................................................................................. 20

7.2.12 Weight ............................................................................................................. 20

7.3 Separation ........................................................................................................................ 20

7.4 Warranty ........................................................................................................................... 20

Section 8: Certifications ................................................................... 21

8.1 North America................................................................................................................... 21

8.1.1 Hazardous locations ........................................................................................... 21

8.1.2 Performance ....................................................................................................... 21

8.2 IECEx ................................................................................................................................. 21

8.3 FC Models ......................................................................................................................... 22

8.3.1 North America (-FC models) ................................................................................ 22

8.3.2 IECEx (-FC models) .............................................................................................. 22

Section 9: Ordering information ...................................................... 23

Reference Manual Introduction

MAN-0091, Revision 8 June 2016

Introduction 1

Section 1: Introduction

1.1 Models covered

The SC311 infrared combustible gas sensor is designed specifically for use with Millennium II Transmitter (models M21, M22, or M2B). This sensor is both versatile and reliable for fast, accurate, and continuous monitoring of gases in extreme environments.

The sensor assembly consists of an explosion proof enclosure (housing) rated for hazardous locations and a replaceable sensor module. This sensor must only be used with a Millennium II series transmitter. If the sensor is connected to any other model of transmitter, it will not function and may result in the sensor or transmitter being damaged.

1.2 Service support

Technical support for this product can be provided by contacting your local Emerson Process Management representative or by contacting the Technical Support department at +1 866 347 3427 (toll free) or Safety.CSC@Emerson.com.

1.3 Return of material

To expedite the return of this product, proper communication between the customer and the factory is important. Before returning a product, call +1 866 347 3427 (toll free) or e-mail

Safety.CSC@Emerson.com for a Return Material Authorization (RMA) number.

On the return of the equipment, include the following information:

1. RMA number provided to you by Rosemount

2. Company name and contact information

3. Ship all equipment, prepaid to:

Rosemount 6021 Innovation Boulevard Shakopee, MN 55379

4. Mark all packages with the RMA number and type of return (e.g. return for evaluation)

Pack items to protect them from damage and use anti-static bags or aluminum-backed cardboard as protection from electrostatic damage.

All equipment must be shipped prepaid. Collect shipments will not be accepted.

1.4 Product recycling/disposal

Recycling of equipment and packaging should be taken into consideration and disposed of in accordance with local and national legislations/regulations.

Installation Reference Manual

June 2016 MAN-0091, Revision 8

2 Installation

Section 2: Installation

2.1 Unpacking and inspection

Carefully remove all of the components from the packaging and verify them against the enclosed packing list. Inspect all components for any obvious damage such as broken or loose parts. If you find any components missing or damaged, notify your local Net Safety representative or the factory immediately.

Recycling of packaging should be taken into consideration and disposed of in accordance with local and national legislations/regulations.

2.2 Locate sensor

Prior to installing the sensor, a plan should be developed for placement of the sensor. Although there are no absolute rules for determining the quantity of detectors or location of a sensor, the following points should be considered when planning the installation.

 Carefully locate the sensor in an area where gases may potentially accumulate, considering that

light gases tend to rise and heavy gases tend to fall and accumulate in low areas.

 Use redundant systems to enhance protection and reliability.  Consider air movement patterns in the facility.  Consider the construction of the facility such as trenches where heavy gases or peaks where light

gases may accumulate.

 Seek advice from experts knowledgeable about the target gas to be detected.  Refer to the regulatory publications that discuss guidelines for your industry.

Avoid placing the sensor where it may be exposed to splashing or direct water sprays. To protect the sensor a splashguard may be required.

2.3 Direct mount or sensor separation

2.3.1 Sensor direct mount

The sensor can be directly attached to a Millennium II transmitter and placed in an appropriate location for detecting the target gas, or the sensor can be separated and remotely mounted away from the Millennium II transmitter. The sensor should be accessible for calibration and maintenance purposes. The transmitter should be located where it is accessible and visible.

2.3.2 Sensor separation

If the sensor is to be remotely mounted from the transmitter, the sensor must be connected to a certified junction box. In this case, the transmitter is typically located near eye-level for easy access and the sensor is mounted where the gas is likely to accumulate.

Reference Manual Installation

MAN-0091, Revision 8 June 2016

Installation 3

In order to ease the calibration process a calibration cup (CCS-1) can be attached to the bottom of the sensor housing and calibration tubing run from the calibration cup to a convenient place for applying the calibration gas, eliminating the need to access the sensor directly. In this case, to compensate for the effect of distance, consider decreasing the calibration tubing length to some length where the end of the tubing to the gas canister is still accessible or increase the calibration gas flow rate between the calibration gas cylinder and sensor. Refer to Figure 2-1 for an example of the sensor separation. For tubing lengths less than 10 feet (3 meters), use a 0.5 LPM regulator and for lengths greater than 10 feet (3 meters) use a 1.0 LPM regulator. On initial install, always confirm readings directly at the transmitter by applying a known gas concentration to the sensor and compare the output from the transmitter. Readings should be accurate to the gas concentration applied taking into account the sensor accuracy specifications in Section 7.2.2.

Figure 2-1 Sensor separation example

Millennium II Transmitter

Separation Junction Box

Millennium II SC311 Sensor

CCS-1 Calibration Cup

Conduit

Calibration Tubing

Installation Reference Manual

June 2016 MAN-0091, Revision 8

4 Installation

2.4 Dimensions

The following tables outline the dimensions of the sensor when connected to either the Millennium II Transmitter (Figure 2-2) or the Millennium II Basic Transmitter/Junction Box (Figure 2-3). Both the transmitter and sensor enclosures are offered in aluminum and stainless steel.

Figure 2-2 Net Safety Millennium II (M21 or M22) enclosure and sensor dimensions

A B C D E F G H

Stainless Steel

5.9

150

5.1

130

4.6

117

8.9

226

6.0

152

5.8

147

2.6

2.9

Aluminum

6.3

160

5.6

142

5.4

137

9.7

246

6.0

152

5.7

145

2.6

2.9

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