• Longest calibration intervals in the industry – 180 days for the toxic gas and combustibles catalytic bead sensors and even longer for the IR Combustibles
• FM approved for operation performance and hazardous area safety
• Comprehensive integration options – 4-20 mA, relay, Modbus RTU, RS-485, SentryBus, digital display

The IT (Information Technology) Series “Network Enabled” Gas Sensor Modules from Sierra Monitor meets the needs of integrators and users industry-wide. With more integration choices than any “Smart” gas sensors, the IT Series makes it easy to integrate hazardous gas detection information into a plant-wide monitoring system. The comprehensive IT Series provides all the features desired by the user for intelligent data management, ease of installation, low operating costs and reliable proven performance.

• FM Approval for both performance and safety
• Long calibration interval for reduced maintenance
• SIL-2 Certified
• Integral LED display
• Able to mount in multiple configurations
• Optional integral alarm relays for High, Low and Trouble
• SMC Sentry bus interface
• 4-20 mA isolated output
• Modbus RTU serial interface
• Multiple protocol capability using FieldServer for interface to EtherNet/IP, Modbus TCP, LonWorks, BACnet, Metasys, Profibus and more!
• Remote sensor option mounting up to 100 feet away from transmitter
• Optional control relay pack
• Visual menu system for configuration of alarm setpoints, calibration, maintenance and alarms acknowledge
• Designed and approved for installation and operation in hazardous areas

Chances are piplines and vessels are too dark for level detection and to view important stages of a process through a sight glass. Flashlights cannot supply sufficient lighting, and may cause a glare on the sight glass, making visual inspection virtually impossible. If the view port is small, there may not even be enough room to combine viewing and lighting. Illumination may be supplied by adding lights (also called "Luminaires") on sight glasses.

When decidng upon a proper light for an application, be sure to consider all of the porperties of the light. The size, weight, voltage, wattage, materials of consturction, mounting configuration, and light pattern are all very important factors.

For a full document on how to Spec Lighting for Sight Glass Applications, please visit

www.ljstar.com