SIERRA MONITOR  5100-25-IT-A1-01-0-0

Information Technology (IT) at the component level! A network enabled Gas Sensor Module with the brilliance to provide Sentry, 4-20 mA or Modbus output. This is a stand alone module with the intelligence to provide integral alarms, loaded with features you need. A gas detector with a Sierra Monitor pedigree, Factory Mutual approved and ready to manage your gas risk. The 5100-XX-IT Series provides all the built-in features desired by instrumentation and safety professionals, including:

• FM Approval for performance and safety
• 180 day calibration frequency
• SIL-2 Certified
• Modbus RTU RS-485 interface
• 4-20 mA output
• HART Interface
• SMC Sentry digital bus interface
• ATEX Approved (5100-05-IT)
• IECEx Certified (5100-05-IT)
• Optional Integral alarm relays – Alarm, Warning and Trouble
• Aluminum or 316 Stainless Steel enclosure
• Integral scrolling LED display
• Remote alarm reset
• Optional remote sensor

The 5100-XX-IT can be used as a 4-20 mA component or as a Modbus RTU node. For higher level system capabilities 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.

Factory Mutual (FM) Approved for electrical safety and environmental parameters including Class I, Div. 1, Groups B, C, D and Class I, Zone 1, Group IIB+H2 IP66. The 5100-XX-IT is also SIL Certified and meets NFPA-72 requirements for gas detectors.

Electrochemical sensors are fuel cell-like devices consisting of an anode, cathode and electrolyte. The components of the cell are selected so a subject gas, allowed to diffuse into the cell, will cause a chemical reaction and generate a current. The cells are diffusion limited so the rate the gas enters the cell is solely dependent on the gas concentration. The current generated is proportional to the rate of the consumption of the subject gas in the cell.

Features

• Local scrolling display
• Non-intrusive calibration, menu driven system
• FM Approved for performance and hazardous area operation, Class I, Div. 1, Group B, C, D, with NEMA 4X enclosure rated for -40 o to 122 o F areas
• Flexible Modbus, 4-20mA, Sentry bus, HART and relay interface
• SIL-2 Certified

Benefits

• Easy to install in a variety of field applications plus easy to obtain critical safety information wherever needed
• Able to easily and quickly calibrate module without declassifying the area
• For safe and reliable operation in hazardous areas 5100-05-IT also includes FM Approval for performance
• Easy to install in a variety of field applications plus easy to obtain critical safety information wherever needed
• Meets long term reliability design standards