Related Manuals for Emerson Net Safety SC311
Summary of Contents for Emerson Net Safety SC311
- Page 1 Reference Manual 00809-0100-4311, Rev AA May 2019 ™ Net Safety SC311 Infrared Combustible Sensor...
- Page 2 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 from Emerson. Warranty...
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Page 3: Models Covered
Safety Millennium II series transmitter. If the sensor is connected to any other model of transmitter, it will not function and may damage the sensor or transmitter. Service support For technical support, contact your local Emerson representative or the Technical Support department at +1 866 347 3427 (toll free) or Safety.CSC@Emerson.com. Return of material To expedite the repair and return of this product, proper communication between the customer and the factory is important. -
Page 4: Product Recycling/Disposal
Reference Manual May 2019 00809-0100-4311 Important All equipment must be shipped prepaid. Emerson will not accept collect shipments. Product recycling/disposal Consider recycling equipment and packaging. Dispose of the product and packaging in accordance with local and national legislations and regulations. -
Page 5: Unpack And Inspect
Make sure the sensor is accessible for calibration and maintenance purposes and that the transmitter is accessible and visible. Net Safety SC311... -
Page 6: Remote Mount
10 ft. (3 m), use a 1.0 LPM regulator. On initial install, confirm readings directly at the transmitter by applying a known gas concentration to the sensor and comparing the output results. Readings should be accurate to the calibration gas concentration used, taking into account the sensor accuracy specifications in . Emerson.com/FlameGasDetection... - Page 7 Millennium II transmitter or the Net Safety Millennium II basic transmitter/ junction box. 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 Dimensions Stainless steel Aluminum Net Safety SC311...
- Page 8 Install Reference Manual May 2019 00809-0100-4311 Dimensions Stainless steel Aluminum Figure 2-3: Net Safety Millennium II Basic (M2B) or Junction Box (JB) Enclosure and Sensor Dimensions Dimensions Stainless steel Aluminum Emerson.com/FlameGasDetection...
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Page 9: Field Installation
If in doubt, consult a qualified official before wiring the system. When separating the sensor from the transmitter, Emerson highly recommends using shielded cable to protect against interference caused by extraneous electrical or electromagnetic noise. - Page 10 Connect sensor wires to the sensor terminals in the applicable transmitter. Refer to the Table 2-1 for the wire colors and their purposes.. Table 2-1: Sensor wires and Millennium II series Terminal definitions Sensor wire White Blue Black Green Marked +Vdc Sig A Sig B Emerson.com/FlameGasDetection...
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Page 11: Installation Checklist
Review the following checklist prior to turning on power to the sensor after completing installation. • Ensure transmitter and sensor are properly and firmly mounted. • Ensure that stopping plug is tightened on any unused conduit entries. Net Safety SC311... - Page 12 Verify wiring at all termination and junction points (transmitter, junction box, and power supply). • If the sensor housing has been opened, ensure that the sensor module is properly seated and making a good connection. Refer to Replace sensor for more details. • Perform initial calibration as per Calibrate. Emerson.com/FlameGasDetection...
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Page 13: Configuration Settings
Net Safety Millennium II basic transmitter configuration When using the Net Safety SC311 with the Net Safety Millennium II basic transmitter, set the transmitter DIP switch as follows. Table 3-1: Net Safety Millennium II Basic Transmitter DIP Switch 2 Positions... - Page 14 Span calibration failure Fault Zero calibration failure Fault Sensor over-range Fault Low temperature Fault High temperature Fault Low voltage Fault High voltage Fault Replace sensor (during calibration cycle) Momentary 2.5 Momentary fault Memory fault Fault Power supply fault Fault Emerson.com/FlameGasDetection...
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Page 15: Modbus Registers
To calibrate sensor, enter channel number. To zero sensor, enter channel number. Note ™ For the Net Safety Millennium II Basic Transmitter enter 1 in register 40102 to calibrate the sensor and 1 in register 40104 to zero the sensor. Net Safety SC311... - Page 16 Output Reference Manual May 2019 00809-0100-4311 Emerson.com/FlameGasDetection...
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Page 17: Maintenance
The calibration gas must be between 5 and 113 °F (-15 and 45 °C) to meet accuracy specifications. Since external factors can affect the sensor's ability to properly detect gas, Emerson highly recommends quarterly inspections and bump tests to ensure proper operation of the gas detection system. - Page 18 Curve 6 (ethane) *Curve 7 (iso-butane) Curve 8 (ethylene) *Curve 9 (hexane) Curve 10 (TBA) Curve 11 (TBA) Curve 12 (TBA) Curve 13 (TBA) Curve 14 (TBA) Curve 15 (TBA) Curve 16 (TBA) * Indicates gases not performance certified Emerson.com/FlameGasDetection...
- Page 19 4, hold the push button or activate reed switch (for 6-9 seconds) using the magnet until the status LED goes solid green, and then release the switch. Zero calibration will begin immediately. See Figure 5-1 for additional reference. Net Safety SC311...
- Page 20 Channel Transmitter The Net Safety Millennium II Transmitter allows monitoring and detection of various combustible gases. The following procedures are specific to this transmitter; follow them to ensure accurate calibration and detection of gases. To select the target gas: Emerson.com/FlameGasDetection...
- Page 21 15. Apply clean air when Apply Clean Air is displayed; then select Z & Span using ( (menu button 1or reed switch 1) for normal calibration. The transmitter will display Setting zero as the sensor is being zeroed. (Ensure no contaminant gases are around if using ambient air). Net Safety SC311...
- Page 22 Ensure that no contaminants are present if using the surrounding air for zeroing. If you need zero calibration, at Step 7 above, select Zero using menu button 3or reed switch 3.See Figure 5-2 for additional reference. The chart shows calibration steps for channel 1. Calibration steps for channel 2 are similar. Emerson.com/FlameGasDetection...
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Page 23: Cross Sensitivities
Infrared sensors react to most compounds containing a carbon-hydrogen bond (hydrocarbons) in varying degress, potentially providing a response from the sensors. You need to consider other gases present within this particular application for their impact on this sensor. For more information, please contact the manufacturer. Net Safety SC311... -
Page 24: Replace Sensor
May 2019 00809-0100-4311 Replace sensor Emerson pre-calibrates sensors at the factory; however you must field calibrate as part of commissioning. When you cannot calibrate or the sensor is not operating properly, you may need to replace the sensor module. WARNING... -
Page 25: Troubleshoot
00809-0100-4311 May 2019 Troubleshoot Emerson did not design sensors or transmitters to be repaired in the field. If problems should develop, first check for faulty wiring, confirm proper voltage to sensor, and attempt a calibration. If problems persist, please contact the Flame and Gas Detection Customer Care team first by phone to try and resolve any issues. - Page 26 2. Mark all packages with Return for Repair and include 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. Important All equipment must be shipped prepaid. Emerson will not accept collect shipments. Emerson.com/FlameGasDetection...
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Page 27: Electrostatic Sensitive Device (Esd)
Ensure all personnel are educated and trained in ESD control procedures. In general, exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices. A warning label is placed on the packaging, identifying product using electrostatic sensitive semiconductor devices. Net Safety SC311... - Page 28 Electrostatic sensitive device (ESD) Reference Manual May 2019 00809-0100-4311 Emerson.com/FlameGasDetection...
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Page 29: Wire Resistance Table
76.10 47.90 30.10 19.00 8000 (2438.4) 81.20 51.10 23.10 20.20 9000 (2743.2) 91.40 57.50 36.10 22.70 10000 (3048) 102.00 63.90 40.20 25.30 Resistance shown is one way. This figure should be doubled when determining closed loop resistance. Net Safety SC311... - Page 30 Wire resistance table Reference Manual May 2019 00809-0100-4311 Emerson.com/FlameGasDetection...
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Page 31: Specifications
316 stainless steel and 6061 aluminum Ingress protection IP64 Stainless steel: 3.5 lb. (1.4 kg) Weight Aluminum: 1 lb. (0.4 kg) Separation Up to 2000 ft. (610 m) with 18 AWG (1.02 mm ) wire Warranty 5 years Methane at room temperature Net Safety SC311... - Page 32 Specifications Reference Manual May 2019 00809-0100-4311 Emerson.com/FlameGasDetection...
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Page 33: Product Certifications
Net Safety Millennium II transmitters, carry the following certifications. All certifications outlined above do not pertain to these models. D.3.1 North America (-FC models) Class I, Division 1, Groups BCD T5 Class I, Zone 1, AEx/Ex d IIB+ H Net Safety SC311... - Page 34 1. Consult the manufacturer if dimensional information on the flameproof joints is necessary. ™ 2. The flying leads of the Net Safety Millennium II sensor shall be suitably protected against mechanical damage and terminated within a terminal or junction facility suitable for the conditions of use. Emerson.com/FlameGasDetection...
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Page 35: Ordering Information
Ordering information 00809-0100-4311 May 2019 Ordering information Model ™ SC311 Net Safety Millennium II infrared combustible gas sensor Housing Aluminum Stainless steel Range 100-ASSY 100% LEL Wireless When used with wireless capable Net Safety Millennium II transmitters Net Safety SC311... - Page 36 2019 Emerson. All rights reserved. twitter.com/rosemount_news The Emerson logo is a trademark and service mark of Emerson Electric Co. Net Safety is a Facebook.com/Rosemount mark of one of the Emerson family of companies. All other marks are the property of their youtube.com/RosemountMeasurement...