{"product_id":"honeywell-2106b2312-sensepoint-high-temperature-combustible-gas-sensor","title":"Honeywell 2106B2312 Sensepoint High Temperature Combustible Gas Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 2106B2312\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e2106B2312\u003c\/strong\u003e High Temperature Combustible Gas Sensor, operates as a dedicated hardware component for detecting and measuring flammable gases under elevated thermal conditions within Honeywell Sensepoint gas detection systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e2106B2312\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.25 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eThreaded sensor body design for standard conduit entry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 150 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eDetermined by the associated controller bridge excitation current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Type\u003c\/td\u003e\n\u003ctd\u003ePoison-resistant catalytic bead (pellistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasuring Range\u003c\/td\u003e\n\u003ctd\u003e0 to 100% LEL (Lower Explosive Limit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003emV bridge circuit (requires external transmitter or controller card)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnclosure Material\u003c\/td\u003e\n\u003ctd\u003ePPS or Stainless Steel with certified flame arrestor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control \u0026amp; Gas Detection Loop Integration\u003c\/h3\u003e\n\u003cp\u003eThe 2106B2312 functions inside specialized process control environments, executing continuous monitoring of potentially explosive atmospheres.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalytic Bead Pellistor Integration:\u003c\/strong\u003e The sensor utilizes matched catalytic beads operating on the Wheatstone bridge principle to measure thermal fluctuations caused by the oxidation of combustible gases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-20 mA HART Loop and DCS Coordination:\u003c\/strong\u003e When paired with a compatible transmitter, the millivolt bridge output is scaled and converted into a standard 4-20 mA loop protocol. This permits direct integration into Honeywell Experion DCS or local safety shutdown PLCs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Flame Arrestor Protection:\u003c\/strong\u003e An integrated sintered flame arrestor allows target gases to diffuse to the active catalytic elements while preventing any internal ignition from propagating back out into the surrounding hazardous area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Can the 2106B2312 be wired directly to standard PLC analog input cards?\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA:\u003c\/strong\u003e No. The raw sensor outputs a low-level millivolt bridge signal. It must be connected either to a dedicated bridge-input card or to a compatible transmitter that converts the signal to a standard process loop output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e How does extreme temperature affect the sensor's calibration span?\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA:\u003c\/strong\u003e Operation at high temperatures (up to 150 deg C) requires the use of thermal compensation loops within the associated transmitter or controller to maintain span and zero stability across the working temperature range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is the catalytic bead resistant to common sensor poisons?\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA:\u003c\/strong\u003e The pellistors are formulated with high-quality, poison-resistant catalysts. However, prolonged exposure to silicones, sulfur compounds, halogenated hydrocarbons, or heavy metals will permanently reduce sensitivity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConduit Thread Engagement and Sealing:\u003c\/strong\u003e Thread the sensor directly into the certified junction box or conduit fitting using an approved thread compound. Ensure a minimum thread engagement of five full turns to maintain explosion-proof structural ratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Shielding and Grounding Continuity:\u003c\/strong\u003e Route the sensor's flying leads through dedicated metallic conduit or shielded, armored instrumentation cable. Terminate the cable shield only at the receiver\/controller end to prevent noise from electromagnetic interference (EMI) corrupting the low-voltage sensor bridge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositioning for Gas Density:\u003c\/strong\u003e Always mount the sensor with the sensing element pointing downwards to prevent liquid accumulation. Position the module relative to the target gas properties: mount low for heavy gases (e.g., propane) and high for light gases (e.g., methane).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48167324745918,"sku":"2106B2312","price":560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-07-16_10-07-14_7bf21c41-fbe1-49d9-b13e-7a2603c6cdea.png?v=1784174839","url":"https:\/\/www.autooiltech.com\/es\/products\/honeywell-2106b2312-sensepoint-high-temperature-combustible-gas-sensor","provider":"AutoOilTech Limited","version":"1.0","type":"link"}