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Installation

Reference Manual

June 2016

MAN-0091, Revision 8

6

Installation

Figure 2-4 SC311 Sensor mounted to Millennium II series transmitters

2.6

Wiring

2.6.1

Field installation

Failure to follow these installation guidelines could result in death or serious injury. Ensure that only
qualified personnel perform the installation.

Electrical shock could cause death or serious injury. Use extreme caution when making contact with
the leads and terminals.

Do not open the transmitter, sensor, or junction box enclosure when in a classified area or when an
explosive atmosphere may be present unless the power to the transmitter and sensor has been
removed.

Wiring codes and regulations may vary. Wiring must comply with all applicable regulations relating to
the installation of electrical equipment in a hazardous area and is the responsibility of the installer. If in
doubt, consult a qualified official before wiring the system.

When separating the sensor from the transmitter, the use of shielded cable is highly recommended to
protect against interference caused by extraneous electrical or electromagnetic noise. In applications
where the wiring is installed in conduit, the conduit must not be used for wiring to other equipment.

Millennium II Basic Transmitter &

Junction Box

Millennium II Transmitter

3/4” NPT

Locking
collar

Sensor
pointing
downwards

SC311 Sensor mouth
and sintered element

3/4” NPT

SC311 Sensor mouth
and sintered element

Locking
collar

Sensor
pointing
downwards

3/4” NPT

3/4” NPT

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Содержание Net Safety SC311

Страница 1: ...Reference Manual Part Number MAN 0091 rev 8 Release June 2016 SC311 Infrared Combustible Gas Sensor ...

Страница 2: ......

Страница 3: ...e 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 ...

Страница 4: ...e 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 limit...

Страница 5: ...ted 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 rep...

Страница 6: ... 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 test...

Страница 7: ...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 ...

Страница 8: ...he 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 f...

Страница 9: ...dundant 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 w...

Страница 10: ...ease 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 s...

Страница 11: ...nium 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 in mm in mm in mm in mm in mm in mm in mm in mm Stainless Steel 5 9 150 5 1 130 4 6 117 8 9 226 6 0 152 5 8 147 2 6 66 2 9 74 Aluminum 6 3 160 5 6 142 5 4 137 9 7 246 6...

Страница 12: ...the threading of the 3 4 FNPT female NPT conduit entry of the enclosure as well as the threading on the sensor 3 4 MNPT male NPT fitting This aids in protecting the enclosures from water ingress After the grease has been applied properly fit and tighten the sensor to the transmitter or junction box enclosure by using appropriate tools The transmitter and junction box have mounting holes to allow m...

Страница 13: ...removed Wiring codes and regulations may vary Wiring must comply with all applicable regulations relating to the installation of electrical equipment in a hazardous area and is the responsibility of the installer If in doubt consult a qualified official before wiring the system When separating the sensor from the transmitter the use of shielded cable is highly recommended to protect against interf...

Страница 14: ...our local Emerson Process Management representative for further information 2 6 4 Sensor wiring Do not open the transmitter sensor or junction box enclosure when in a classified area or when an explosive atmosphere may be present unless the power to the sensor has been removed When connecting cable wires use a small flathead screwdriver to gently press down and hold the spring connector open Inser...

Страница 15: ... External ground In order to ensure proper operation of the sensor an external ground is required The external ground must be connected to the grounding point on the enclosure according to IECEx requirements Refer to Figure 2 7 for grounding connection location Figure 2 7 External grounding point External Earth Ground point ...

Страница 16: ...ffect the SC311 sensor s ability to properly detect gas it is highly recommended that quarterly inspections and bump tests be completed to ensure proper operation of the gas detection system If accessories are used on the SC311 calibrations must be completed with these accessories in place There are specific steps to be followed when calibrating with a Millennium II Transmitter Refer to the approp...

Страница 17: ...1 Revision 8 10 Installation Table 2 2 Gas curves available Gas Gas Curve Number Methane 0 Propane 1 n Butane 2 Iso Pentane 3 n Pentane 4 Ethane 5 Iso Butane 6 Ethylene 7 Hexane 8 Propylene 9 Indicates gases are not third party performance verified ...

Страница 18: ...sensor mouth If calibration cups or splash guards are fitted to the sensor ensure that they are properly fitted Ensure adherence to applicable local guidelines and requirements on wiring and sealing of equipment in hazardous and non hazardous areas Ensure that proper shielding and grounding practices are adhered to and local codes are being followed Check system operational voltage and conditions ...

Страница 19: ... functioning The warm up time for the SC311 sensor is typically ninety 90 seconds Refer to the Millennium II transmitter manual MAN 0076 or the Net Safety Millennium II Basic transmitter manual MAN 0082 for status indicators during this period 3 3 Sensor communication The SC311 sensor uses a proprietary protocol to communicate with the Millennium II series of transmitters This sensor should never ...

Страница 20: ... ON ON OFF Ethylene 7 OFF OFF OFF ON Hexane 8 ON OFF OFF ON Propylene 9 Indicates gases are not third party performance verified 3 5 Fault conditions The SC311 sensor will provide a number of fault conditions that the Millennium II transmitter will translate into an analog or fault relay output These fault conditions are outlined in the following table Table 3 2 Fault conditions Fault condition An...

Страница 21: ...n of the sensor applying a known gas concentration to the sensor verifying the accuracy of the response to the specifications of the sensor and alarm system simulation If the response is outside of the specifications of the sensor a calibration should be completed Refer to 2 7 for more information After a calibration has been completed it is recommended that a bump test be completed to verify accu...

Страница 22: ... 9 Align the replacement sensor module banana plugs with the standoffs in the housing and press the replacement sensor into place 10 Install and hand tighten the bottom part of the sensor enclosure by turning it in a clockwise direction 11 Install the locking ring by tightening the set screws with 1 5 mm Allen Key tool 12 Restore power to sensor via the transmitter 4 5 Troubleshooting Sensors and ...

Страница 23: ...CAL CYL BUT 103 L Butane CAL CYL ETH A 50 103 L Ethylene CAL CYL HYD 103 L Hydrogen CAL CYL METH 103 L Methane CAL CYL PEN 103 L Pentane CAL CYL PRO 103 L Propane Ingress protection filter IPF 001 Separation kit JB MPD A aluminum JB MPD S stainless steel Replacement sensor module SC311 100 The SC311 sensor is not certified for performance when the calibration cup ingress protection filter or dust ...

Страница 24: ... marginal or seemingly normal for an indefinite period of time followed by a sudden failure To eliminate potential ESD damage review the following guidelines Handle boards by metal shields taking care not to touch electronic components Wear grounded wrist or foot straps ESD shoes or heel grounders to dissipate unwanted static energy Prior to handling boards dispel any charge in your body or equipm...

Страница 25: ...70 7 99 5 03 3 16 1500 457 2 15 20 9 58 6 02 3 79 1750 533 4 17 80 11 20 7 03 4 42 2000 609 6 20 30 12 80 8 03 5 05 2250 685 8 22 80 14 40 9 03 5 68 2500 762 25 40 16 00 10 00 6 31 3000 914 4 30 50 19 20 12 00 7 58 3500 1066 8 35 50 22 40 14 10 8 84 4000 1219 2 40 60 25 50 16 10 10 00 4500 1371 6 45 70 28 70 18 10 11 40 5000 1524 50 10 32 00 20 10 12 60 5500 1676 4 55 80 35 10 22 10 13 91 6000 182...

Страница 26: ...T60 7 0 seconds T90 11 0 seconds Methane at room temperature 7 2 2 Accuracy 5 LEL or 10 of applied whichever is greater Methane at room temperature 7 2 3 Zero Drift 5 full scale per year 7 2 4 Repeatability 2 LEL full scale 7 2 5 Detection Range 0 100 LEL 7 2 6 Calibration Frequency Twelve 12 months 7 2 7 Storage temperature 40 C to 70 C 40 F to 158 F 7 2 8 Operating temperature 40 C to 75 C 40 F ...

Страница 27: ...ty 0 95 relative humidity non condensing 7 2 10 Enclosure material housing 316 stainless steel and 6061 aluminum 7 2 11 Ingress protection IP64 7 2 12 Weight Stainless steel 3 5 lbs 1 4 kg Aluminum 1 lb 0 4 kg 7 3 Separation Up to 2000 feet 610 meters with 18 AWG 1 02 mm2 wire 7 4 Warranty Five 5 years ...

Страница 28: ...Performance CSA C22 2 No 152 2006 FM Class 6310 6320 2001 ANSI ISA 12 13 01 2000 8 2 IECEx Ex d IIB H2 T5 Gb IECEx FMG 12 0007X Special conditions for safe use Consult the manufacturer if dimensional information on the flameproof joints is necessary The flying leads of the Millennium II sensor shall be suitably protected against mechanical damage and terminated within a terminal or junction facili...

Страница 29: ...North America FC models Class I Division 1 Groups BCD T5 Class I Zone 1 AEx Ex d IIB H2 T5 40 C Ta 75 C CSA C22 2 No 152 FM6320 8 3 2 IECEx FC models Ex d IIB H2 T5 Gb 40 C Ta 75 C IECEx FMG 12 0007X Special conditions for safe use Consult the manufacturer if dimensional information on the flameproof joints is necessary The flying leads of the Millennium II sensor shall be suitably protected again...

Страница 30: ...formation 23 Section 9 Ordering information Model Description SC311 Millennium II Infrared Combustible Gas Sensor Housing Description A Aluminum S Stainless Steel Range Description 100 ASSY 100 LEL Wireless Description FC When used with wireless capable Millennium II transmitters ...

Страница 31: ......

Страница 32: ...Notes ...

Страница 33: ...Notes ...

Страница 34: ...Notes ...

Страница 35: ......

Страница 36: ...Private Limited 1 Pandan Crescent Singapore 128461 Republic of Singapore T 65 6 777 8211 F 65 6 777 0947 SAFETY CSC Emerson com 2016 Emerson Process Management All rights reserved The Emerson logo is a trademark and service mark of Emerson Electric Co Rosemount is a mark of one of the Emerson Process Management family of companies All other marks are property of their respective owners The content...

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