{"product_id":"midas-e-shx-electrochemical-sih4-gas-sensor-cell-honeywell-midas","title":"MIDAS-E-SHX Electrochemical SiH4 Gas Sensor Cell Honeywell Midas","description":"\u003c!-- SEO Titles Reference (For Shopify Settings):\n1. MIDAS-E-SHX Honeywell Midas Silane Gas Sensor Cartridge MIDAS-E-SHX New Stock\n2. MIDAS-E-SHX Electrochemical SiH4 Gas Sensor Cell Honeywell Midas MIDAS-E-SHX\n--\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- SEO Meta Description Reference:\nIn stock: Honeywell MIDAS-E-SHX Silane gas sensor cartridge (0-20ppm). Fast response electrochemical cell. 12-month warranty, global DHL\/FedEx\/UPS express.\n--\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX Honeywell Midas Silane Gas Detector Sensor Cartridge Technical Specifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eHoneywell MIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e is a high-sensitivity, 3-electrode electrochemical sensor cartridge engineered for the continuous monitoring and quantitative detection of low-parts-per-million (ppm) Silane ($SiH_4$) gas leaks. Optimized exclusively for integration with the Honeywell Midas extractive transmitter platform, this cartridge operates on an electrochemical oxidation mechanism to convert trace gas diffusion into a micro-ampere electrical signal. The \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e offers a specialized measuring spectrum of 0 to 20 ppm with a resolution of 0.1 ppm, providing critical response capabilities for highly pyrophoric and hazardous environments. Each module comes equipped with a pre-programmed internal memory chip that retains factory calibration matrices, serial tracking codes, and diagnostic histories for seamless hot-swapping in the field.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eGlobal PLC Spare HUB's Insight\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWhen handling pyrophoric hydride gases like Silane, response speed is the primary line of defense against catastrophic ignition. The \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eHoneywell MIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e achieves an exceptional response time ($t_{62.5} \\le 3$ seconds), making it one of the fastest electrochemical cells in the Honeywell Midas series catalog. From an automation and loop safety perspective, this hyper-reactive profile allows safety systems to trigger emergency gas shut-off valves (EGOV) and scrubbing loops before concentration levels reach the lower explosive limit. Additionally, the option to use Hydrogen Sulfide ($H_2S$) as an alternative bump test gas simplifies routine functional verification in high-tech fabrication facilities where handling live Silane for standard field testing is highly restricted or dangerous.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eSensor Architecture \u0026amp; Key Parametric Data\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe physical and operational parameters of the \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e cartridge are detailed in the engineering matrix below:\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eEngineering Classification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #ddd; text-align: left;\"\u003eOperational Threshold Value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBrand Manufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHoneywell Analytics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCartridge Model Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTarget Gas Spec\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eSilane ($SiH_4$)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDetection Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0 to 20 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLower Detection Limit (LDL)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e1.8 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMinimum Alarm 1 Set Point\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e2.4 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eAnalytical Resolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0.1 ppm incremental detection step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDynamic Response Time ($t_{62.5}$)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eLess than or equal to 3 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eLinearity \u0026amp; Repeatability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eWithin \u0026lt;±5% of active measured value\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature Window\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e0°C to +40°C (32°F to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eAmbient Humidity Limits\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e10% to 90% RH (Non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Pressure Scope\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e90 kPa to 110 kPa absolute pressure range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eTypical Cell Life Expectancy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eGreater than or equal to 24 months under standard plant conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eTarget Applications \u0026amp; Machine Scenarios\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e module provides precision monitoring and safety loops across several key industries:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemiconductor Wafer Fabrication:\u003c\/strong\u003e Monitors gas source cabinets (VMB), tool interfaces, and point-of-use (POU) abatement setups for plasma-enhanced chemical vapor deposition (PECVD) machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhotovoltaic (Solar) Cell Assembly:\u003c\/strong\u003e Tracks ambient leak potentials during thin-film silicon deposition phases on large-scale automated coating lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Gas Storage Areas:\u003c\/strong\u003e Monitors outdoor cylinder bulk distribution bunkers, valve manifold configurations, and processing lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiber Optic Preform Manufacturing:\u003c\/strong\u003e Safeguards chemical delivery networks utilizing high-purity silicon source gases.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eDiagnostic Capacities \u0026amp; Signal Validation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefined Drift Minimization:\u003c\/strong\u003e Controls baseline shift through a specialized chemical balance, limiting long-term zero drift to less than 2 ppm\/year.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInteractive EEPROM Synch:\u003c\/strong\u003e Feeds real-time operational metrics to the host Midas transmitter, enabling predictive service scheduling before cell depletion occurs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Relative Humidity Mitigation:\u003c\/strong\u003e Minimizes cross-sensitivity to environmental humidity variations, restricting zero drift to less than ±0.005 ppm per % RH.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Warm-Up Phase:\u003c\/strong\u003e Achieves baseline sensor stability and internal loop synchronization within 20 minutes from initial power-up.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eProcurement, Warranty, \u0026amp; Global Logistics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate-Controlled Storage Protocols:\u003c\/strong\u003e All \u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eMIDAS-E-SHX\u003c\/span\u003e\u003c\/strong\u003e stock units are maintained between +5°C and +25°C to protect internal chemical stability prior to shipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty Safeguard:\u003c\/strong\u003e Covered by a comprehensive 12-month industrial quality warranty starting from the physical delivery date.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpedited Air Express Transport:\u003c\/strong\u003e Rapid global shipping is fulfilled via premier international carriers including DHL, FedEx, and UPS.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder Processing Window:\u003c\/strong\u003e In-stock warehouse orders are processed, packaged, and handed over to express couriers within 24 to 48 hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #0056b3;\"\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does this cartridge specify Hydrogen Sulfide ($H_2S$) as a bump test gas instead of the target Silane gas?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSilane is highly pyrophoric, dangerous to handle, and difficult to transport in portable test cylinders. The internal electrochemical cell features a known cross-sensitivity to $H_2S$, which allows maintenance teams to safely use low-concentration $H_2S$ mixture cylinders to verify sensor response and loop integrity during routine maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat field symptoms indicate that the internal cell has reached the end of its useful lifespan?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf the Midas transmitter outputs a low sensitivity warning during calibration, or if the sensor exhibits a continuous zero baseline drift exceeding 2 ppm within a short window, the internal electrolyte has likely oxidized or evaporated. This indicates that a replacement cartridge is required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this model prevent false alarms during sudden changes in ambient humidity?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3-electrode configuration includes an internal compensation bridge that reduces humidity-induced drift to less than ±0.005 ppm \/ % RH. However, to maintain accuracy, ensure that sample extraction lines are clear of condensed moisture by utilizing water traps or hydrophobic filters where necessary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this cartridge be used in facilities with continuous background concentrations of organic vapors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eElectrochemical hydride sensors can experience cross-reactivity or baseline suppression when exposed to high levels of specific organic compounds. If background vapors are present, check the manufacturer's cross-sensitivity index and consider installing a chemical pre-filter on the Midas sample line.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the best way to manage spare inventory given the 24-month life expectancy of these units?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eStore your inventory under strict temperature controls (+5°C to +25°C) and avoid over-purchasing. Because electrochemical cells age naturally even when stored in their original packaging, we recommend ordering units to match your annual maintenance cycles rather than hoarding long-term spares.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/MIDAS-E-SHX.png?v=1783934196\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45258447388854,"sku":"MIDAS-E-SHX","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/MIDAS-E-SHX.jpg?v=1783934181","url":"https:\/\/www.plcsparehub.com\/products\/midas-e-shx-electrochemical-sih4-gas-sensor-cell-honeywell-midas","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}