{"product_id":"xnxxsh2ss-honeywell-hydrogen-sulfide-sensor-50-500-ppm-detection","title":"XNXXSH2SS Honeywell Hydrogen Sulfide Sensor 50–500 ppm Detection","description":"\n\u003ch2\u003eHoneywell XNXXSH2SS Hydrogen Sulfide Sensor for Industrial Gas Monitoring\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHoneywell XNXXSH2SS\u003c\/strong\u003e is an Analytics hydrogen sulfide (H₂S) sensor designed for gas-monitoring applications that require detection of H₂S concentrations across a configurable measurement range. It offers selectable full-scale ranges from \u003cstrong\u003e50 to 500 ppm\u003c\/strong\u003e, a default range of 100 ppm, and a stated lower detectable limit of 1 ppm.\u003c\/p\u003e\n\n\u003cp\u003eFor maintenance and instrumentation engineers, the key selection factors are the required detection range, calibration gas concentration, response time, operating temperature, and compatibility with the installed gas detection system. The XNXXSH2SS specifies a T50 response time below 20 seconds and a T90 response time below 30 seconds, supporting evaluation of its response characteristics within the intended monitoring application.\u003c\/p\u003e\n\n\u003cp\u003eThis component should be selected against the detector manufacturer's compatibility requirements. Confirm the supported detector model, sensor interface, calibration procedure, and alarm configuration before ordering or replacing an installed sensor.\u003c\/p\u003e\n\n\u003ch3\u003e01 | Measurement Profile\u003c\/h3\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct family\u003c\/td\u003e\n\u003ctd\u003eHoneywell Analytics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel \/ Product number\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eXNXXSH2SS\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eHydrogen sulfide (H₂S) sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTarget gas\u003c\/td\u003e\n\u003ctd\u003eH₂S — hydrogen sulfide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGas range designation\u003c\/td\u003e\n\u003ctd\u003eH₂S (Hi), as supplied in the product specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable full-scale range\u003c\/td\u003e\n\u003ctd\u003e50–500 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault full-scale range\u003c\/td\u003e\n\u003ctd\u003e100 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLower detectable limit\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull-scale selection increment\u003c\/td\u003e\n\u003ctd\u003e10 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelectable calibration gas range\u003c\/td\u003e\n\u003ctd\u003e30–70% of the selected full-scale range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault calibration point\u003c\/td\u003e\n\u003ctd\u003e50 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT50 response time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;20 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT90 response time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;±5 ppm, as specified in the supplied data\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +55°C (−40°F to +131°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e02 | Range Selection and Calibration Logic\u003c\/h3\u003e\n\n\u003cp\u003eThe configurable measurement range allows the sensor to be matched to the expected H₂S concentration and the requirements of the connected detection system. The correct setting depends on the measurement objective, alarm thresholds, detector configuration, and applicable site procedures.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSelection item\u003c\/th\u003e\n\u003cth\u003eEngineering consideration\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e50–500 ppm full-scale range\u003c\/td\u003e\n\u003ctd\u003eChoose a range supported by the installed detector and appropriate for the expected concentration profile.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 ppm default range\u003c\/td\u003e\n\u003ctd\u003eConfirm whether the default setting matches the intended application before commissioning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10 ppm selection steps\u003c\/td\u003e\n\u003ctd\u003eUse the available increments when configuring the supported full-scale setting.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 ppm lower detectable limit\u003c\/td\u003e\n\u003ctd\u003eThis is the stated lower detection limit; it should not be treated as a guarantee of accuracy at every concentration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e30–70% calibration gas range\u003c\/td\u003e\n\u003ctd\u003eSelect a certified calibration gas concentration within the supported range for the configured full scale.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 ppm default calibration point\u003c\/td\u003e\n\u003ctd\u003eVerify that the calibration point is suitable for the selected range and the detector's calibration procedure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eCalibration example:\u003c\/strong\u003e If the configured full-scale range is 100 ppm, the stated 30–70% calibration gas range corresponds to 30–70 ppm. The default calibration point of 50 ppm falls within that interval. For other full-scale settings, calculate the permitted calibration gas concentration from the selected range and verify it against the manufacturer's instructions.\u003c\/p\u003e\n\n\u003cp\u003eDo not assume that changing the sensor's full-scale range automatically changes the detector's alarm setpoints, output scaling, or control-system logic. Review these settings separately during commissioning.\u003c\/p\u003e\n\n\u003ch3\u003e03 | Response Characteristics and Measurement Interpretation\u003c\/h3\u003e\n\n\u003cp\u003eThe stated T50 and T90 values describe the time required for the indicated response to reach specified portions of a concentration change under the manufacturer's test conditions. They help engineers evaluate the sensor's response behavior when assessing gas-monitoring performance.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eT50 below 20 seconds:\u003c\/strong\u003e The stated response reaches 50% of the defined response change in less than 20 seconds under the specified test conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eT90 below 30 seconds:\u003c\/strong\u003e The stated response reaches 90% of the defined response change in less than 30 seconds under the specified test conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccuracy below ±5 ppm:\u003c\/strong\u003e Interpret this specification within its stated test conditions and applicable manufacturer documentation. Do not assume that the same absolute accuracy applies uniformly across every selected range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower detectable limit of 1 ppm:\u003c\/strong\u003e This describes the stated lower detection limit, not the full measurement uncertainty or a guaranteed alarm activation point.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eActual gas detection performance also depends on the detector platform, calibration status, gas delivery conditions, installation location, environmental exposure, and maintenance condition. Use the complete detector's documented performance when evaluating system-level response.\u003c\/p\u003e\n\n\u003ch3\u003e04 | Integration with Gas Detection Equipment\u003c\/h3\u003e\n\n\u003cp\u003eThe XNXXSH2SS is intended for use within a compatible Honeywell Analytics gas detection arrangement. The supplied specifications do not identify a complete list of supported detector models, electrical interface details, or output characteristics. Confirm these details before planning an installation or substitution.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed gas detection equipment:\u003c\/strong\u003e Consider the sensor for compatible fixed H₂S monitoring systems where the detector documentation identifies it as a supported component.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial process areas:\u003c\/strong\u003e Potential application areas include oil and gas facilities, chemical processing, wastewater operations, and other sites where H₂S monitoring is required, provided the complete detection system is approved and suitable for the installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment maintenance:\u003c\/strong\u003e Use the exact model reference when sourcing a replacement for an existing compatible installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant monitoring and alarm systems:\u003c\/strong\u003e Confirm the connected detector's alarm logic, output behavior, and communication with the plant control system rather than assuming the sensor provides a direct PLC interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eApplication boundary:\u003c\/strong\u003e These examples describe potential uses of compatible H₂S detection equipment. They do not establish that the sensor alone provides a complete gas detection system, a safety instrumented function, or any specific hazardous-area approval.\u003c\/p\u003e\n\n\u003ch3\u003e05 | Field Diagnostics and Maintenance Checks\u003c\/h3\u003e\n\n\u003cp\u003eWhen a gas detector reports an abnormal reading, investigate the sensor, calibration, detector configuration, and environmental conditions before deciding that the sensing element has failed. Follow the site gas safety procedure and the manufacturer's approved maintenance instructions.\u003c\/p\u003e\n\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eObserved symptom\u003c\/th\u003e\n\u003cth\u003ePossible causes to investigate\u003c\/th\u003e\n\u003cth\u003eRecommended checks\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading remains at zero during a functional test\u003c\/td\u003e\n\u003ctd\u003eIncorrect test gas, gas not reaching the sensor, expired calibration, incompatible sensor, or detector configuration issue\u003c\/td\u003e\n\u003ctd\u003eVerify the test gas identity and concentration, delivery method, sensor compatibility, and detector status. Follow the approved functional-test procedure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading is lower than expected\u003c\/td\u003e\n\u003ctd\u003eIncorrect calibration, unsuitable test-gas concentration, restricted gas delivery, sensor degradation, or configuration mismatch\u003c\/td\u003e\n\u003ctd\u003eCheck the calibration record, gas concentration, tubing and test accessories, and configured full-scale range.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReading is unstable\u003c\/td\u003e\n\u003ctd\u003eEnvironmental interference, inconsistent gas delivery, poor connections, or a sensor nearing the end of its usable service condition\u003c\/td\u003e\n\u003ctd\u003eReview environmental conditions and test setup, inspect accessible connections according to the manual, and repeat the approved test.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration does not complete successfully\u003c\/td\u003e\n\u003ctd\u003eCalibration gas outside the permitted range, incorrect calibration procedure, unsuitable accessories, or sensor incompatibility\u003c\/td\u003e\n\u003ctd\u003eCalculate the permitted calibration gas range from the selected full scale and verify the required procedure in the detector manual.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDetector response appears slow\u003c\/td\u003e\n\u003ctd\u003eGas delivery delay, test setup issues, environmental conditions, or a sensor performance problem\u003c\/td\u003e\n\u003ctd\u003eCheck the test arrangement and compare the observed response with the specified T50 and T90 values under comparable conditions.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplacement sensor is not recognized or behaves unexpectedly\u003c\/td\u003e\n\u003ctd\u003eIncorrect part selection, unsupported detector model, installation issue, or configuration mismatch\u003c\/td\u003e\n\u003ctd\u003eReconfirm the complete part number and detector compatibility. Inspect installation and configuration according to the approved procedure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eNever use a suspected faulty sensor as the sole basis for declaring an area safe. Apply the site's approved backup monitoring, isolation, and maintenance procedures whenever gas detection performance is uncertain.\u003c\/p\u003e\n\n\u003ch3\u003e06 | Global PLC Spare HUB's Insight\u003c\/h3\u003e\n\n\u003cp\u003eFor H₂S sensor selection, engineers should distinguish the lower detectable limit, configured full-scale range, measurement accuracy, and alarm setpoints. These values describe different aspects of performance and should not be treated as interchangeable. A low detection limit does not, by itself, establish the accuracy of a low-level reading or the response of the complete alarm system.\u003c\/p\u003e\n\n\u003cp\u003eBefore replacing an XNXXSH2SS, record the installed detector model, configured measurement range, calibration gas concentration, last calibration result, and any relevant fault indications. This information helps determine whether the problem relates to the sensor itself, the calibration setup, or the host detector.\u003c\/p\u003e\n\n\u003cp\u003eFor safety-critical applications, verify the complete detector's certifications, required proof or functional testing, alarm settings, and maintenance intervals against the manufacturer's documentation and the site's safety procedures. Do not infer system certification from the sensor model alone.\u003c\/p\u003e\n\n\u003ch3\u003e07 | Global PLC Spare HUB Review\u003c\/h3\u003e\n\n\u003cp\u003eThe Honeywell Analytics XNXXSH2SS offers a configurable H₂S measurement range from 50 to 500 ppm, a stated 1 ppm lower detectable limit, and specified T50\/T90 response times below 20 and 30 seconds, respectively. These characteristics provide useful starting points for evaluating its suitability for compatible gas detection equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe most important purchasing check is system compatibility. The supplied data does not establish the full list of supported detector models, electrical interface specifications, or certification details for this exact part number. Buyers should verify these items before approving a replacement, especially where gas alarms form part of a site safety procedure.\u003c\/p\u003e\n\n\u003ch3\u003e8 | Warranty, Packaging, and Shipping\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month warranty, subject to the seller's applicable warranty terms and conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping methods:\u003c\/strong\u003e FedEx, UPS, or DHL, subject to destination, service availability, and shipment requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder verification:\u003c\/strong\u003e Provide the complete model number and the host detector model to support compatibility checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalibration planning:\u003c\/strong\u003e Confirm the required calibration gas, concentration, accessories, and procedure before putting the replacement into service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ1: How do I determine whether the XNXXSH2SS is the correct replacement for my installed sensor?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompare the full part number with the installed sensor label and the detector manufacturer's compatibility list. Also check the detector model, sensor interface, configured range, and required approvals. Similar gas type or range specifications alone do not prove interchangeability.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: How should I select a calibration gas concentration for a different full-scale setting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse a calibration gas concentration within 30–70% of the selected full-scale range, according to the supplied specification. For example, a 200 ppm full-scale setting gives a nominal permitted calibration concentration range of 60–140 ppm. Confirm that the chosen gas and procedure are explicitly supported by the host detector's manual.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: Does the 1 ppm lower detectable limit mean the sensor will always report exactly 1 ppm when that concentration is present?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. A lower detectable limit is not the same as measurement accuracy, repeatability, or guaranteed alarm performance. Actual readings depend on the sensor, detector, calibration, test conditions, and applicable performance specifications. Use the manufacturer's documentation to assess low-concentration measurement requirements.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4: What information should maintenance teams record after calibration or sensor replacement?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRecord the sensor part number, detector identification, configured full-scale range, calibration gas concentration and expiry, calibration result, date, technician, and any diagnostic messages. Retain functional-test results according to site procedures. These records help distinguish sensor deterioration from configuration or calibration problems during later troubleshooting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5: What should I confirm before purchasing sensors for a multi-point H₂S detection system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConfirm that every target detector supports the exact sensor, then review the required range, calibration process, environmental limits, approval requirements, and maintenance plan. Check the quantity and model references for each monitoring point. For safety-related installations, also verify the complete system's required performance and certification with the responsible engineer.\u003c\/p\u003e\n\n\u003ch3\u003eRequest a Quote for Honeywell XNXXSH2SS\u003c\/h3\u003e\n\n\u003cp\u003eNeed the \u003cstrong\u003eHoneywell Analytics XNXXSH2SS H₂S Sensor\u003c\/strong\u003e for maintenance, replacement, or compatible gas detection equipment? Contact Global PLC Spare HUB with the part number and host detector model to request pricing and compatibility support.\u003c\/p\u003e\n","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":67717610537142,"sku":"XNXXSH2SS","price":152.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/XNXXSH2SS.jpg?v=1792650315","url":"https:\/\/www.plcsparehub.com\/products\/xnxxsh2ss-honeywell-hydrogen-sulfide-sensor-50-500-ppm-detection","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}