Assessments - 2, GPA: 4.5
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Facilidade de uso
As usual, Sierra Monitor A gas detector with a Sierra Monitor pedigree, Factory Mutual approved and ready to Manage Your Gas Risk. The 5100-28-IT provides all the built-in features desired by instrumentation and safety professionals, including: • FM Approval for performance and safety • SIL-2 Certified • Modbus RTU RS-485 interface • 4-20 mA output • HART interface • SMC Sentry digital bus interface • Optional Integral alarm relays – Alarm, Warning and Trouble • Aluminum or 316 Stainless Steel enclosure • Annual calibration frequency • %LEL or % volume • Interface to multiple protocols • Integral scrolling LED display • Optional remote sensor The 5100-28-IT can be used as a 4-20 mA component or as a Modbus RTU node. For higher level system capability the module can interface directly to Sierra Monitor’s Sentry Controller. As part of a Sentry system the user gains capability of system Modbus serial communications, extensive diagnostic features, area and zone alarm management, WebServer interface and multiplexing sensor connections. Features • Non-intrusive calibration, menu driven system • Network compatible with Modbus, 4-20mA, Sentry bus, HART, relay interface • FM Approved for performance and hazardous area operation, Class I, Div. 1, Group B, C, D, with NEMA 4X enclosure rated for -40o to 176oF areas • SIL-2 Certified • Local scrolling display Factory Mutual (FM) Approval for performance, electrical safety and environmental parameters including Class I, Div. 1, Groups B, C, D and Class I, Zone 1, Group IIC. The 5100-28-IT is also SIL-2 Certified and meets NFPA-72 requirements for gas detectors. How It Works Most combustible gases absorb infrared light energy at defined wavelengths, providing an absorption signature for that gas. The principle of an infrared detector is based upon the absorption of the infrared light at a specific wavelength as it passes through the gas. The more of the absorbing gas that is present, the more light is absorbed. The detector measures the energy from an infrared light beam at a wavelength that is absorbed by the gas and compares it to the energy emitted by the source. The difference in energy received by the detector indicates the level of gas in the atmosphere. Benefits Able to easily and quickly calibrate module without declassifying the area Easy to install in a variety of field applications plus easy to obtain critical safety information wherever needed For safe and reliable operation in hazardous areas Meets long term reliability design standards Ease of calibration and easy access to gas concentration, relay status and diagnostics Sierra Monitor Corporation 1991 Tarob Ct. Milpitas, CA 95035 (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042 Web site: E-Mail: sales@sierramonitor.com IT Toxic Gas Sensor Module Specifications: Sensor type: Infrared, Dual Wavelength Performance Dual Range: Default: 0-100% LEL Methane User Setting: 0-100% by vol. Methane Repeatability: +/-1% LEL Accuracy: +/- 1% for 0-50% LEL range +/- 2% for 51-100% LEL range Sensor Life: Typically >5 years Heated Sensor: Heated cell to prevent condensation Response Time: T60<10sec Output: Display: Fixed and Scrolling LED Signal Outputs: Sentry digital bus Analog 4-20 mA 3-wire Non-Isolated 4-wire Isolated Serial RS-485 Modbus RTU Relay : Optional Options: Relays: 5 amp Alarm, Warning (0.25 amp Trouble) 5A@ 250 VAC, 5A@ 30VDC (Alarm, Warning) Construction: Dimensions: (A1) (A2) (S1 & S2) Weight: (A1) (A2) (S1 & S2) Enclosure: Housing: Hazardous Area Classification: Warranty: Approvals: (H x W x D) 7.8 x 5.7 x 3.9 in. (19.8 x 14.5 x 9.9 cm) 8.1 x 4.8 x 4.9 in. (21 x 12 x 12 cm) 7.5 x 4.4 x 4.9 in. (19 x 11 x 12 cm) 3.4 lb. (1.5 Kg) 5.4 lb. (2.5 Kg) 7.2 lb. (3.3 Kg) Epoxy coated Aluminum or 316 Stainless Steel AL or SS (same as enclosure) Explosion proof, Class 1, Div. I, Groups B, C, D Class I, Zone 1 Group IIC, IP66, IP65, NEMA 4X, T6 TA = - 40oC to 85oC II2 GD, Ex d IIC 2 years FM Approval 6320 Combustible Gas Detector Performance FM Approval 3600 Class I Div. 1, Groups B, C, D SIL-2 Certified Certified by Lloyd's Register (IEC 61508) Board includes auxiliary connection for Sentry multiplexing HART: Termination board includes HART, Modbus RS485, 4-20mA, Digital Input, 2A Relay output, No Sentry Bus Power: Power consumption: 3 watts Input voltage: 24 VDC nominal: 10-30VDC Operating Range: Ambient Temp Range: -4o to 140oF (-20o to 60oC) Relative Humidity: 0-99% Non-Condensing CSA For enclosure in hazardous locations ABS Certificate of Compliance CQST Specifications subject to change without notice Ordering Information: Model Enclosure Relay/Connection Output Gas Type Sensor Protection Remote Option 5100-28-IT - XX - XX-XX -X - X - A1 = AL .” NPT - 01 = No Relays (std) - 01 = Methane (Std.) - 0 = Standard - 0 = None - 02 = Relays Option- 1 = Conformal - 1 = Remote - A2 = AL M20 x 1.5 - S1 = SS .” NPT - S2 = SS M20 x 1.5 Rainshield with calibration port Calibration Head, Standard Calibra...