How It Works

Combustible Gas Sensor Module Infrared

Proven Performance

Proven Technology

Proven Support

Information Technology (IT) at the component level! An infrared (IR) Combustible Gas sensor module with the brilliance to provide Sentry, 4-20 mA or Modbus output. A stand alone module with the intelligence to provide integral alarms. A base model already loaded with fea- tures you need. A gas detector with a Sierra Monitor pedigree, Factory Mutual approved and ready to Man- age 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 Certified - SIL-1

•Aluminum or 316 Stainless Steel enclosure

•Integral alarm relays – High, Low, Trouble

•Integral scrolling LED display

•4-20 mA output

•Modbus RTU RS-485 interface

•SMC Sentry digital bus interface

•Option for non-Methane gas configuration

•Annual calibration frequency

•Interface to multiple protocols

•Remote alarm reset

•Optional remote sensor

•Optional integral 8 amp relays

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 com- munications, extensive diagnostic features, area and zone alarm management, LanServer interface and mul- tiplexing sensor connections.

Factory Mutual (FM) Approval for performance, electri- cal safety and environmental parameters including Class I, Div. 1, Groups B, C, D and Class I, Zone 1, Group IIB+H2 IP66. The 5100-28-IT is also SIL Certified and meets NFPA-72 requirements for gas detectors.

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 wave- length as it passes through the gas. The more of the ab- sorbing 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 dif- ference in energy received by the detector indicates the level of gas in the atmosphere.

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.

NEMA 4X rated for -40oto 176oF areas

Benefits

Ease of calibration and easy access to gas concentration, relay status and diagnostics

Able to easily and quickly calibrate module without declassifying the area

For safe and reliable operation in hazardous areas

Flexible Modbus, 4-20mA, Sentry bus, relay interface Easy to install in a variety of field applications plus easy to obtain critical safety information wherever needed

	SIL Certified	Meets long term reliability design standards


Sierra Monitor Corp. 1991 Tarob Court Milpitas, CA 95035 USA (408) 262-6611 (800) 727-4377 Fax: (408) 262-9042
		Visit our website: www.sierramonitor.com	E-mail: sales@sierramonitor.com

5100-28-IT specifications

Sierra Monitor Corporation's 5100-28-IT is a sophisticated building automation solution that harnesses advanced technologies to ensure effective management and monitoring of environmental conditions in industrial and commercial settings. This essential device is part of Sierra Monitor’s line of products designed to enhance operational efficiency, maintain safety standards, and reduce energy costs.

The 5100-28-IT is a robust gateway that facilitates seamless communication between various building systems and devices. One of its standout features is its ability to support multiple communication protocols, including BACnet, Modbus, and SNMP. This interoperability ensures that users can integrate the 5100-28-IT with existing systems without the need for extensive modifications, saving both time and money.

Another significant characteristic of the 5100-28-IT is its high-performance processing capability. Equipped with a powerful microprocessor, it can handle a multitude of data points and complex algorithms, enabling real-time monitoring and control of HVAC systems, lighting, and other building utilities. This processing power also supports advanced analytics, allowing users to analyze trends and make informed decisions based on historical data.

Security is a top priority in today’s connected environment, and the 5100-28-IT addresses this concern through fortified cybersecurity features. With built-in encryption and authentication protocols, it protects sensitive data and ensures that only authorized personnel can access critical systems. This feature is vital in preventing unauthorized access and maintaining compliance with regulatory standards.

The device is designed for rugged environments, making it suitable for both indoor and outdoor applications. Its robust housing and mounting options ensure durability, while the intuitive interface simplifies setup and configuration, making it accessible even for users with minimal technical expertise.

Furthermore, the 5100-28-IT can be utilized in various sectors, including manufacturing, healthcare, and education, demonstrating its versatility. By implementing this device, organizations can significantly enhance their energy efficiency, ensure compliance with environmental regulations, and create a more comfortable environment for occupants.

Overall, Sierra Monitor Corporation's 5100-28-IT stands out as a leading choice for building automation, combining advanced technologies with user-friendly features that cater to the evolving needs of modern facilities management. Its reliability, adaptability, and cutting-edge capabilities make it an indispensable tool for optimizing building operations.