Net Safety SC311S-100-ASSY Gas Sensor

Feature & Principle

It adopts non-dispersive infrared detection principle. The infrared light source and receiving detector identify hydrocarbon gas concentration based on characteristic light absorption. It is immune to catalyst poisoning risk, with stable performance and long service life. It is pre-calibrated, supports field gas curve switching, communicates with Millennium II transmitter via RS485, and automatically uploads concentration and fault diagnostic information. Stainless steel housing adapts to corrosive offshore and chemical environments.

Specifications

Model: SC311S-100-ASSY Brand: Net Safety Series: Millennium II Measurement range: 0-100% LEL hydrocarbon gas Power supply: 10.5-32VDC Communication: RS485 Housing: 316 stainless steel Protection: IP64 Ambient temperature: -40℃ ~ +75℃ Response time T90 ≤11s Certification: ATEX, IECEx, CSA, FM Application: Oil & gas platform, refinery, chemical plant hazardous zone gas monitoring

Components & Diagnostics

Infrared optical chamber, light source, detector, signal processing circuit, stainless steel enclosure, filter assembly. Common faults: optical window contamination, signal drift, communication loss, filter blockage.

Product Brief

SC311S-100-ASSY infrared combustible gas sensor, Net Safety Millennium II gas detection spare widely used for refinery and offshore gas monitoring system overhaul and replacement.