Smart Infrared (IR) Combustible Gas Sensor Module (IT Series)

Proven Performance ----- Proven Technology ------ Proven Support

IR Combustibles Gas Detector Module, 5100-28-IT, from Sierra Monitor is best of class when it comes to providing the features demanded by instrumentation and safety professionals.

• FM approval for performance and hazardous area operation - for safe and reliable operation
• Extended calibration frequency for low maintenance - for low cost of ownership
• SIL1 Certified - for long term reliability
• NEMA 4X enclosure - 316 Stainless Steel or epoxy coated aluminum
• Integral scrolling LED display - for ease of operation
• Menu-driven system - for user-friendly configuration of alarm setpoints, calibration, maintenance and alarms acknowledge
• Integral alarm relays for High, Low and Trouble - no need for external auxillary boxes
• SMC Sentry bus interface - for interface with the Sentry system that has been in operation for many years
• 4-20 mA output - enabling easy interface to common factory communications links
• Modbus RTU serial interface - easy interface to the worlds most common industiral protocol from the company that provided the first hazardous gas detection system with Modbus interface
• Remote sensor configuration option - to meet specific application requirements
• Optional integral control relay pack - when higher amperage control relays are needed, but still integral to the enclosure without an external auxillary box

The FM Approved 5100-28-IT IR Gas Sensor Module utilizes Non-Dispersive Infrared technology to monitor for combustible gases (Methane and others). Output range is either 0-100% of LEL (default) or percent (%) by volume. This Module requires minimal maintenance with a calibration check once a year. Internal continuous self-diagnostics will automatically indicate any fault or optics problems.

Infrared technology has the benefits of:

• Reduced need for calibration and thus lower operating costs.
• Operates in high combustible gas and/or low oxygen environment
• Can operate in environments where catalytic bead poisons might exist
• Rapid recovery after exposure to high concentrations of hydrocarbon gas (exceeding 100% LEL)