The Sensidyne SensAir CMB Poison Resistant Catalytic Bead Gas Detector

SensAir CMB, by leading gas detection equipment manufacturer Sensidyne, is an industrial grade, cost effective, fixed point gas detector with a highly poison resistant catalytic bead sensor.

The SensAir Gas Detector is a single-point device capable of detecting the presence of various gases. The detector detects gas in either ppm, %Volume or %LEL concentrations. The standard detector consists of a display board and a power supply board, housed in a heavy-duty enclosure, a sensor specifically designed to detect Oxygen, Toxic or Combustible gases, and optionally, a relay/communication board. A complete monitoring system consists of the detector and a separate read-out device & power supply capable of monitoring a 4-20 mA output and supplying 24 VDC power. There are versions of the detector for hazardous and non-hazardous areas.

SenseAir CMB Features

• Combustible, Toxic, and Oxygen Versions Available
• U.S./Canada/IECEx/ATEX Hazardous Area Approved
• Rugged, Industrial, Cost Effective Design Meets a Wide Range of Application and Project Requirements
• Robust, Fast Responding Sensors
• Bright LED Display Model or Lower Cost Blind Model
• Non-Intrusive Zero & Span Adjustments
• Easy Installation and Maintenance, Ideal for Retrofit or New Applications
• 3-wire Design with 4-20mA Output, Options for Modbus or BACnet—Both include 3 Additional Relays
• Horizontal or Vertical Installation
• Remote Combustible Sensor Option
• Field Replaceable Sensor

For more information, contact Ives Equipment. Call Ives at (877) 768-1600 or visit their web site at https://ivesequipment.com.

Refinery Gas Analyses Using Compact Gas Chromatographs and Gas Detectors

The analysis of trace permanent gases has many different fields of application in the petrochemical industry. One of the most important is for controlling the manufacturing process and the product quality. For example, some contaminants as carbon monoxide and carbon dioxide tend to deteriorate the catalysts in the propylene and ethylene polymer grade production.

An instrument for monitoring trace impurities is then required. Many different GC techniques are available on the market. Most of the techniques use a combination of TCD, FID and methanizer for the trace analysis of H2-O2-N2-CH4-CO-CO2 in propylene and ethylene. More precisely, an FID and a methanizer are used to trace CH4-CO and CO2. A TCD with Hydrogen or Helium carrier gas is used to trace O2-N2 detection. Finally, a second TCD with Argon or Nitrogen carrier gas must be added to trace H2 detection. These solutions require complex GC solutions with multiple detectors and multiple gas sources for carrier, fuel and air. On top of that, an FPD must be added in some cases when the trace analysis of H2S is required.

Read the application note below for more information. Contact Ives Equipment at (877) 768-1600 or visit http://www.ivesequipment.com for a consultation.

Refinery Gas Analyses with Multidetek2 Compact Gas Chromatograph and Plasmadetek2 Gas Detector from Ives Equipment